ECOSYS P6130cdn

ECOSYS P6035cdn
ECOSYS P7040cdn
PF-5100

SERVICE
MANUAL
Published in September 2015
842NM112
2NRSM062
Rev.2
CAUTION

RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF USED BAT-

TERIES ACCORDING TO THE INSTRUCTIONS.

It may be illegal to dispose of this battery into the municipal waste stream. Check with your local solid waste
officials for details in your area for proper disposal.

ATTENTION

IL Y A UN RISQUE D’EXPLOSION SI LA BATTERIE EST REMPLACEE PAR UN MODELE DE TYPE

INCORRECT. METTRE AU REBUT LES BATTERIES UTILISEES SELON LES INSTRUCTIONS DONNEES.

Il peut être illégal de jeter les batteries dans des eaux d’égout municipales. Vérifiez avec les fonctionnaires
municipaux de votre région pour les détails concernant des déchets solides et une mise au rebut appropriée.

Notation of products in the manual

For the purpose of this service manual, products are identified to the following type.

ECOSYS P6130cdn (30 ppm model)

ECOSYS P6035cdn (35 ppm model)
ECOSYS P7040cdn (40 ppm model)
Revision history
Revision Date Pages Revised contents
1 8 July 2015 Contents Added: 9. Appendixes
(3) System Error (Fxxxx) Outline
1-1 Correction: Warm-up Time Power on
29→26 seconds or less (30 ppm model)
1-3 to 1-5 Correction: (2)Printer Functions
Interface: Optional Interface
Added HD-6/HD-7
2-9 Correction: Cassette 1: 60 - 160g/m2 → 60 - 163g/m2
2-16, 2-17 Correction: Description of setting Standard→ Normal
2-21 Correction: "Processing"→"Data" in IMPORTANT
3-11 Added: 40 ppm models
3-12, 3-13, 3-15 Added: Drum heater PWB
3-14 Correction: 14 DV-5150(C)→DV-5140(C)
15 DV-5150(K)→DV-5150(Y)
DV-5160(K)→DV-5160(Y)
3-16 Correction: Changed the position of No.26
3-18 Correction: 10: DV-5150(C)→DV-5140(C)
11: DV-5150(K)→DV-5150(Y)
11: DV-5160(K)→DV-5160(Y)
26: 302NR9415→302M29413
3-19 to 3-21 Added: Duplex fan motor
3-34 Added: DR-5160
4-3 to 4-5 Added: Quantity
4-19 Added: IMPORTANT
4-92, 4-96 Correction: Correction of IMPORTANT and design
4-103 Added: Caution
4-152 Added: 4.(40ppm model only)
4-208 Added: Duplex fan motor
4-210 Added: IMPORTANT
4-223 Correction: 9. Release the hook (b)→(a)
4-226 Added: Number 18 to 20
5-3 Added: Error cord No.N001,N002
6-9 Correction:
(41) Life counter (cassette 1)→(The first line)
Life counter (cassette 2)→(The second line)
6-30, 6-31 Correction: (9) Maintenance Log Maintenance kit item
(11) Counter Log Maintenance kit item
7-20 Correction: C0120 Contents
Deleted: C0120 No.3
7-35 to 7-37 Correction: Contents C4101, C4102, C4103, C4202,
C4203, C4204
Revision Date Pages Revised contents
1 7-86, 7-87 Correction: No.1 of "Check description" and "Corrective
Action"
7-108 Correction: (8) Deleted the engine relay PWB.
Main/Engine PWB (YC4) → (YC21)
8-13 Added: YC28
8-21 Correction: YC104-1 DC24V power output → input
9-2, 9-4, 9-6 Correction: B8, D4, R2, X0
9-9 to 9-12 Added: Error codes (Fxxxx)
9-17 Added: Duplex fan motor
9-20 Correction: Paper Feeder (Option) YC3, YC4, YC5
2 25 September Cover Added: PF-5100
2015 Contents Correction: 7-3 Image formation problems
3-13, 3-15 Correction: *3: 240V models only → Asian models
(except China)
3-18 Correction: NO.15,16,20 (40 ppm models)
120V: FK-5172, 230V: FK-5170
3-20 Correction: No.6 40 ppm model → 302NT9414_
3-23, 3-24 Correction: NO.12 to 15 (40 ppm models)
120V: FK-5172, 230V: FK-5170
4-5 Correction: 40 ppm model Fuser unit
120V: FK-5162 → FK-5172
230/240V: FK-5160 → FK-5170
4-74 Added: Notes when replacing the Main/Engine PWB
6-18 Added: Note (*1)
6-19, 6-25 Added: Drum Heater
7-62 to 7-64 Added: C7611 to C7614, C7620
7-72 to 7-107 Correction: Image formation problems
 Safety precautions

This booklet provides safety warnings and precautions for our service personnel to ensure the safety of
their customers, their machines as well as themselves during maintenance activities. Service personnel
are advised to read this booklet carefully to familiarize themselves with the warnings and precautions
described here before engaging in maintenance activities.
Safety warnings and precautions

Various symbols are used to protect our service personnel and customers from physical danger and
to prevent damage to their property. These symbols are described below:

DANGER: High risk of serious bodily injury or death may result from insufficient attention to or incorrect
compliance with warning messages using this symbol.

WARNING: Serious bodily injury or death may result from insufficient attention to or incorrect compliance
with warning messages using this symbol.

CAUTION: Bodily injury or damage to property may result from insufficient attention to or incorrect com-
pliance with warning messages using this symbol.

Symbols

The triangle ( ) symbol indicates a warning including danger and caution. The specific point of attention is
shown inside the symbol.

General warning. Warning of risk of electric shock.

Warning of high temperature.

indicates a prohibited action. The specific prohibition is shown inside the symbol.

General prohibited action. Disassembly prohibited.

indicates that action is required. The specific action required is shown inside the symbol.

General action required. Remove the power plug from the wall outlet.

Always ground the copier.

1. Installation Precautions

WARNING

• Do not use a power supply with a voltage other than that specified. Avoid multiple connections to
one outlet: they may cause fire or electric shock. When using an extension cable, always check that
it is adequate for the rated current. .....................................................................................................

• Connect the ground wire to a suitable grounding point. Not grounding the copier may cause fire or
electric shock. Connecting the earth wire to an object not approved for the purpose may cause
explosion or electric shock. Never connect the ground cable to any of the following: gas pipes, light-
ning rods, ground cables for telephone lines and water pipes or faucets not approved by the proper
authorities. ..........................................................................................................................................

CAUTION:

• Do not place the copier on an infirm or angled surface: the copier may tip over, causing injury. .........

• Do not install the copier in a humid or dusty place. This may cause fire or electric shock. .................

• Do not install the copier near a radiator, heater, other heat source or near flammable material. This
may cause fire. ...................................................................................................................................

• Allow sufficient space around the copier to allow the ventilation grills to keep the machine as cool
as possible. Insufficient ventilation may cause heat buildup and poor copying performance. ............

• Always handle the machine by the correct locations when moving it. .................................................

• Always use anti-toppling and locking devices on copiers so equipped. Failure to do this may cause
the copier to move unexpectedly or topple, leading to injury. ..............................................................

• Avoid inhaling toner or developer excessively. Protect the eyes. If toner or developer is accidentally
ingested, drink a lot of water to dilute it in the stomach and obtain medical attention immediately.
If it gets into the eyes, rinse immediately with copious amounts of water and obtain medical atten-
tion. .....................................................................................................................................................

• Advice customers that they must always follow the safety warnings and precautions in the copier’s
instruction handbook. .........................................................................................................................
2. Precautions for Maintenance

WARNING

• Always remove the power plug from the wall outlet before starting machine disassembly. ................

• Always follow the procedures for maintenance described in the service manual and other related
brochures. ..........................................................................................................................................

• Under no circumstances attempt to bypass or disable safety features including safety mechanisms
and protective circuits. ........................................................................................................................

• Always use parts having the correct specifications. ............................................................................

• Always use the thermostat or thermal fuse specified in the service manual or other related brochure
when replacing them. Using a piece of wire, for example, could lead to fire or other serious acci-
dent. ...................................................................................................................................................

• When the service manual or other serious brochure specifies a distance or gap for installation of a
part, always use the correct scale and measure carefully. ..................................................................

• Always check that the copier is correctly connected to an outlet with a ground connection. ...............

• Check that the power cable covering is free of damage. Check that the power plug is dust-free. If it
is dirty, clean it to remove the risk of fire or electric shock. .................................................................

• Never attempt to disassemble the optical unit in machines using lasers. Leaking laser light may
damage eyesight. ...............................................................................................................................

• Handle the charger sections with care. They are charged to high potentials and may cause electric
shock if handled improperly. ...............................................................................................................

CAUTION

• Wear safe clothing. If wearing loose clothing or accessories such as ties, make sure they are safely
secured so they will not be caught in rotating sections. ......................................................................

• Use utmost caution when working on a powered machine. Keep away from chains and belts. ..........

• Handle the fixing section with care to avoid burns as it can be extremely hot. ..................................

• Check that the fixing unit thermistor, heat and press rollers are clean. Dirt on them can cause
abnormally high temperatures. ...........................................................................................................
• Do not remove the ozone filter, if any, from the copier except for routine replacement. ......................

• Do not pull on the AC power cord or connector wires on high-voltage components when removing
them; always hold the plug itself. ........................................................................................................

• Do not route the power cable where it may be stood on or trapped. If necessary, protect it with a
cable cover or other appropriate item. ................................................................................................

• Treat the ends of the wire carefully when installing a new charger wire to avoid electric leaks. ..........

• Remove toner completely from electronic components. .....................................................................

• Run wire harnesses carefully so that wires will not be trapped or damaged. ......................................

• After maintenance, always check that all the parts, screws, connectors and wires that were
removed, have been refitted correctly. Special attention should be paid to any forgotten connector,
trapped wire and missing screws. .......................................................................................................

• Check that all the caution labels that should be present on the machine according to the instruction
handbook are clean and not peeling. Replace with new ones if necessary. .......................................

• Handle greases and solvents with care by following the instructions below: ......................................
· Use only a small amount of solvent at a time, being careful not to spill. Wipe spills off completely.
· Ventilate the room well while using grease or solvents.
· Allow applied solvents to evaporate completely before refitting the covers or turning the power
switch on.
· Always wash hands afterwards.

• Never dispose of toner or toner bottles in fire. Toner may cause sparks when exposed directly to
fire in a furnace, etc. ...........................................................................................................................

• Should smoke be seen coming from the copier, remove the power plug from the wall outlet immedi-
ately. ...................................................................................................................................................

3. Miscellaneous

WARNING

• Never attempt to heat the drum or expose it to any organic solvents such as alcohol, other than the
specified refiner; it may generate toxic gas. ........................................................................................

• Keep the machine away from flammable liquids, gases, and aerosols. A fire or an electric shock
might occur. ........................................................................................................................................
This page is intentionally left blank.
 2NR/2NS/2NT

CONTENTS

1 Specifications
1-1 Specifications ........................................................................................................................... 1-1
(1) Common functions............................................................................................................... 1-1
(2) Printer Functions ................................................................................................................. 1-3
(3) Paper Feeder (500-sheet) (Option) ..................................................................................... 1-5
1-2 Parts names ............................................................................................................................. 1-6
(1) Machine Exterior.................................................................................................................. 1-6
(2) Connectors/Interior .............................................................................................................. 1-7
(3) With Optional Equipments Attached.................................................................................. 1-10
(4) Operation Panel Keys........................................................................................................ 1-12
(4-1) 30 ppm models......................................................................................................... 1-12
(4-2) 35/40 ppm models.................................................................................................... 1-13
1-3 Options ................................................................................................................................... 1-14

2 Installation
2-1 Environment ............................................................................................................................. 2-1
2-2 Installing the machine ............................................................................................................... 2-2
(1) Unpacking and checking bundled items .............................................................................. 2-3
(2) Setting up the Toner Container ........................................................................................... 2-7
(3) Connecting the Interface Cable ........................................................................................... 2-7
(4) Loading Paper ..................................................................................................................... 2-9
(5) Connecting the Power Cord .............................................................................................. 2-14
(6) Turn the power on. ............................................................................................................ 2-14
(7) Default Setting (for 30 ppm model).................................................................................... 2-15
(7-1) Setting Date and Time.............................................................................................. 2-15
(7-2) Network Setup (LAN Cable Connection).................................................................. 2-15
(7-3) Altitude Adjustment Setting ...................................................................................... 2-16
(8) Default Setting (for 35/40 ppm model)............................................................................... 2-16
(8-1) Setting Date and Time.............................................................................................. 2-16
(8-2) Network Setup (LAN Cable Connection).................................................................. 2-17
(8-3) Altitude Adjustment Setting ...................................................................................... 2-17
(9) Installing Software ............................................................................................................. 2-18
(10) Output of Status Page ....................................................................................................... 2-19
(11) Completion of installing the main unit (Turning the power off) .......................................... 2-21
2-3 Installing the optional equipment ............................................................................................ 2-22
(1) Card Authentication Kit(B) ................................................................................................. 2-22
(2) Paper Feeder (500-sheet x1) ............................................................................................ 2-23
(3) Memory Module................................................................................................................. 2-27
(4) HD-6/HD-7 (SSD) .............................................................................................................. 2-29
(5) IB-50 (Network Interface Kit) ............................................................................................. 2-29
(6) IB-51 (Wireless Network Interface Kit) .............................................................................. 2-29
(7) SD/SDHC Card.................................................................................................................. 2-31
(8) Data Security Kit(E) (Data Security Kit)............................................................................. 2-33
(9) UG-33 (ThinPrint Option)................................................................................................... 2-33
2-4 Optional Applications .............................................................................................................. 2-34

3 Machine Design
3-1 Mechanical Configration ........................................................................................................... 3-1
(1) Cross-section view (Main unit) ............................................................................................ 3-1
 2NR/2NS/2NT

(2) Cross-section view (Main unit) ............................................................................................ 3-2

(3) Cross-section view (Optional paper feeder) ........................................................................ 3-3
(4) Paper conveying and Paper detection................................................................................. 3-4
3-2 Electric parts ............................................................................................................................. 3-5
(1) Wire connection diagram (Machine right side) .................................................................... 3-5
(2) Wire connection diagram (Machine left side) ...................................................................... 3-6
(3) Descriptions about the major PWBs.................................................................................... 3-7
(3-1) Main/Engine PWB ...................................................................................................... 3-7
(3-2) Engine relay PWB ...................................................................................................... 3-8
(3-3) High-voltage PWB ...................................................................................................... 3-9
(3-4) High-voltage PWB (for 40 ppm models)................................................................... 3-10
(3-5) Power source PWB .................................................................................................. 3-10
(3-6) Operation panel PWB (for 30 ppm models) ............................................................. 3-10
(3-7) Operation panel PWB (for 35/40 ppm models) ........................................................ 3-11
(3-8) PF main PWB (Optional paper feeder).................................................................... 3-11
(4) Electric parts layout ........................................................................................................... 3-12
(4-1) PWBs ....................................................................................................................... 3-12
(4-2) Sensors and Switches.............................................................................................. 3-16
(4-3) Motors ...................................................................................................................... 3-19
(4-4) Clutches and Solenoids and other parts .................................................................. 3-22
(4-5) Paper feeder (Optinal unit) ....................................................................................... 3-25
(5) Drive unit ........................................................................................................................... 3-27
(5-1) Wire connection ....................................................................................................... 3-27
(5-2) Drive system for the paper conveying ...................................................................... 3-28
(5-3) Unit Design............................................................................................................... 3-30
3-3 Paper feed and conveying section ......................................................................................... 3-37
(1) Cassette paper feed section.............................................................................................. 3-37
(2) MP tray paper feed section................................................................................................ 3-39
(3) Paper conveying section ................................................................................................... 3-41
3-4 Optical section ........................................................................................................................ 3-43
(1) Laser scanner unit ............................................................................................................. 3-43
3-5 Developer section ................................................................................................................... 3-46
(1) Developer unit ................................................................................................................... 3-46
3-6 Drum section .......................................................................................................................... 3-48
(1) Charger roller unit.............................................................................................................. 3-48
(2) Cleaning unit...................................................................................................................... 3-48
3-7 Transfer and separation section ............................................................................................. 3-51
(1) Primary transfer section..................................................................................................... 3-51
(2) Secondary transfer roller section....................................................................................... 3-54
3-8 Fuser section .......................................................................................................................... 3-56
(1) Fuser unit........................................................................................................................... 3-56
3-9 Eject and feedshift section...................................................................................................... 3-58
(1) Eject unit............................................................................................................................ 3-58
3-10 Duplex conveying section ....................................................................................................... 3-61
(1) Duplex conveying unit ....................................................................................................... 3-61
3-11 Optional paper feeder ............................................................................................................. 3-65
(1) Paper feed section............................................................................................................. 3-65

4 Maintenance
4-1 Precautions for maintenance .................................................................................................... 4-1
(1) Precautions.......................................................................................................................... 4-1
(2) Drum unit ............................................................................................................................. 4-1
 2NR/2NS/2NT

(3) Storage of the toner containers ........................................................................................... 4-1

(4) Screening of the toner container ......................................................................................... 4-1
4-2 Maintenance Parts.................................................................................................................... 4-3
(1) Maintenance kits.................................................................................................................. 4-3
(2) Clearing the maintenance kit message ............................................................................... 4-5
4-3 Periodic maintenance procedures ............................................................................................ 4-6
(1) Detaching and reattaching the primary transfer unit............................................................ 4-6
(2) Drum section ..................................................................................................................... 4-12
(2-1) Detaching and reattaching the drum unit ................................................................. 4-12
(3) Developer section.............................................................................................................. 4-14
(3-1) Detaching and reattaching the developer unit.......................................................... 4-14
(4) Fuser section ..................................................................................................................... 4-17
(4-1) Detaching and reattaching the fuser unit.................................................................. 4-17
(5) Detaching and reattaching the retard roller ....................................................................... 4-20
(6) Detaching and reattaching the paper feed roller unit......................................................... 4-25
(7) Detaching and reattaching the secondary transfer roller unit ............................................ 4-28
(8) Adjustment procedures after replacing the maintenance kit.............................................. 4-29
4-4 Disassembly & Reassembly ................................................................................................... 4-36
(1) Outer covers ...................................................................................................................... 4-36
(1-1) Detaching and reattaching the front cover ............................................................... 4-36
(1-2) Detaching and reattaching the interface cover......................................................... 4-38
(1-3) Detaching and reattaching the upper right cover ..................................................... 4-39
(1-4) Detaching and reattaching the middle right cover .................................................... 4-41
(1-5) Detaching and reattaching the lower right cover ...................................................... 4-48
(1-6) Detaching and reattaching the upper left cover........................................................ 4-54
(1-7) Detaching and reattaching the middle left cover ...................................................... 4-56
(1-8) Detaching and reattaching the lower left cover ........................................................ 4-58
4-5 PWBs replacement ................................................................................................................. 4-62
(1) Detaching and reattaching the Main/Engine PWB ............................................................ 4-62
(2) Detaching and reattaching the engine relay PWB............................................................. 4-80
(3) Detaching and reattaching the high-voltage PWB............................................................. 4-84
(4) Detaching and reattaching the high-voltage PWB 2 (for 40 ppm models only) ................. 4-93
(5) Detaching and reattaching the power source PWB........................................................... 4-97
(6) Detaching and reattaching the operation panel PWB...................................................... 4-103
4-6 Other parts............................................................................................................................ 4-104
(1) Optical section (Laser scanning) ..................................................................................... 4-104
(1-1) Detaching and reattaching the LSU ....................................................................... 4-104
(2) MP tray paper feed section.............................................................................................. 4-129
(2-1) Detaching and reattaching the MP feed roller ........................................................ 4-129
(2-2) Detaching and reattaching the MP conveying unit ................................................. 4-136
(3) Drum section ................................................................................................................... 4-140
(3-1) Detaching and reattaching the main charger roller unit.......................................... 4-140
(4) Eject section .................................................................................................................... 4-141
(4-1) Detaching and reattaching the eject unit ................................................................ 4-141
(5) Duplex paper conveying unit ........................................................................................... 4-156
(5-1) Detaching and reattaching the duplex paper conveying unit.................................. 4-156
(6) Drive section.................................................................................................................... 4-158
(6-1) Detaching and reattaching the main drive motor unit............................................. 4-158
(6-2) Detaching and reattaching the paper feed drive unit.............................................. 4-169
(6-3) Detaching and reattaching the MP paper feed drive unit ....................................... 4-176
(6-4) Detaching and reattaching the toner motor unit ..................................................... 4-185
(6-5) Detaching and reattaching the toner motor ............................................................ 4-194
 2NR/2NS/2NT-2

(6-6) Detaching and reattaching the lift motor................................................................ 4-197

(7) Operation panel ............................................................................................................... 4-206
(7-1) Detaching and reattaching the language sheet...................................................... 4-206
(8) Fan motor ........................................................................................................................ 4-208
(8-1) Attaching direction.................................................................................................. 4-208
4-7 Disassembly and reassembly procedures of the paper feeder (option) ............................... 4-209
(1) Detaching and reattaching the retard roller unit and feed roller unit............................... 4-209
(1-1) Detaching and reattaching the retard roller unit ..................................................... 4-209
(2) Detaching and reattaching the paper feed roller unit....................................................... 4-211
(3) Detaching and reattaching the PF main PWB ................................................................. 4-213
(4) Detaching and reattaching the PF drive unit ................................................................... 4-219

5 Firmware
5-1 Firmware Updates .................................................................................................................... 5-1

6 Service mode
6-1 Service mode............................................................................................................................ 6-1
(1) Executing the service mode (30/35 ppm models) ............................................................... 6-1
(2) Descriptions of service modes............................................................................................. 6-4
(3) Executing the service mode (40 ppm model) .................................................................... 6-18
(4) Descriptions of service modes........................................................................................... 6-20
(5) Print Event Log .................................................................................................................. 6-27

7 Troubleshooting
7-1 Paper misfeed detection ........................................................................................................... 7-1
(1) Paper misfeed indication ..................................................................................................... 7-1
(2) Paper misfeed detection condition ...................................................................................... 7-4
(3) First check items.................................................................................................................. 7-8
(4) Items and corrective actions relating to the device that will cause paper jam ................... 7-11
(5) Paper jam at feeding from paper feeder 1......................................................................... 7-14
(6) Paper jam at feeding from cassette 2 (paper feerder 1).................................................... 7-15
(7) Paper jam at feeding from the MP tray.............................................................................. 7-17
(8) Paper jam at the duplex re-feeding section ....................................................................... 7-18
(9) Electrical parts that could cause paper jam at the transfer , the fuser and the eject parts 7-19
7-2 Self diagnostic ........................................................................................................................ 7-20
(1) Self diagnostic function...................................................................................................... 7-20
(2) Self diagnostic codes......................................................................................................... 7-20
7-3 Image formation problems ...................................................................................................... 7-71
(1) Poor image (Image rendering problems: Mono-color printer engine)................................ 7-72
(1-1) No image appears (entirely white)............................................................................ 7-74
(1-2) No image appears (entirely black)............................................................................ 7-76
(1-3) Image is too light ...................................................................................................... 7-77
(1-4) The background is colored ....................................................................................... 7-79
(1-5) White streaks are printed vertically .......................................................................... 7-80
(1-6) Black or color streaks appear longitudinally ............................................................. 7-81
(1-7) Black, white or color streaks appear horizontally ..................................................... 7-82
(1-8) Uneven density vertically.......................................................................................... 7-83
(1-9) Uneven density horizontally ..................................................................................... 7-84
(1-10) Black or color dots appear on the image.................................................................. 7-85
(1-11) Offset occurs ............................................................................................................ 7-86
(1-12) Part of image is missing ........................................................................................... 7-86
 2NR/2NS/2NT-2

(1-13) Image is out of focus ................................................................................................ 7-87

(1-14) Poor grayscale reproducibility .................................................................................. 7-87
(1-15) Unevenly repeating horizontal streaks in the printed objects
Colored spots in the printed objects ......................................................................... 7-88
(1-16) Grainy image (low solid image density).................................................................... 7-89
(2) Poor image (Caused by transferring toner, paper conveying, or fusing:
Four-color printer engine) .................................................................................................. 7-90
(2-1) No image appears (entirely white)............................................................................ 7-92
(2-2) Image is too light ...................................................................................................... 7-93
(2-3) The background is colored ....................................................................................... 7-94
(2-4) White streaks are printed vertically .......................................................................... 7-94
(2-5) Black or color streaks appear longitudinally ............................................................. 7-95
(2-6) Black, white or color streaks appear horizontally ..................................................... 7-96
(2-7) Uneven transferring toner......................................................................................... 7-97
(2-8) Black or color dots appear on the image.................................................................. 7-98
(2-9) Image is blurred (Shifted transferring)...................................................................... 7-99
(2-10) The leading edge of the image is consistently misaligned with the original ........... 7-100
(2-11) The leading edge of the image is sporadically misaligned with the original ........... 7-100
(2-12) Paper is creaseed .................................................................................................. 7-101
(2-13) Offset occurs .......................................................................................................... 7-101
(2-14) Image is partly missing (Outlines objects and white dots)...................................... 7-102
(2-15) Fusing failure.......................................................................................................... 7-103
(2-16) Image is out of focus .............................................................................................. 7-103
(2-17) Image center does not align with the original center .............................................. 7-104
(2-18) Dirty paper with toner ............................................................................................. 7-104
(2-19) Poor color reproduction .......................................................................................... 7-105
(2-20) Color shift ............................................................................................................... 7-106
(2-21) Dirty reverse side of paper ..................................................................................... 7-107
7-4 Electric problems .................................................................................................................. 7-108
7-5 Mechanical problems............................................................................................................ 7-112

8 PWBs
8-1 Description for PWB ................................................................................................................. 8-1
(1) Main/Engine PWB ............................................................................................................... 8-1
(1-1) Connector position ..................................................................................................... 8-1
(1-2) PWB photograph ........................................................................................................ 8-1
(1-3) Connector lists............................................................................................................ 8-2
(2) Engine relay PWB ............................................................................................................... 8-8
(2-1) Connector position ..................................................................................................... 8-8
(2-2) PWB photograph ........................................................................................................ 8-8
(2-3) Connector lists............................................................................................................ 8-9
(3) High-voltage PWB ............................................................................................................. 8-14
(3-1) Connector position ................................................................................................... 8-14
(3-2) PWB photograph ...................................................................................................... 8-15
(3-3) Connector lists.......................................................................................................... 8-16
(4) High-voltage PWB 2 .......................................................................................................... 8-17
(4-1) Connector position ................................................................................................... 8-17
(4-2) PWB photograph ...................................................................................................... 8-17
(4-3) Connector lists.......................................................................................................... 8-18
(5) Power source PWB ........................................................................................................... 8-19
 2NR/2NS/2NT-1

(5-1) Connector position ................................................................................................... 8-19

(5-2) PWB photograph ...................................................................................................... 8-20
(5-3) Connector lists.......................................................................................................... 8-21
(6) Operation panel PWB........................................................................................................ 8-22
(6-1) Connector position ................................................................................................... 8-22
(6-2) PWB photograph ...................................................................................................... 8-23
(6-3) Connector lists.......................................................................................................... 8-24
(7) Drum relay PWB................................................................................................................ 8-25
(7-1) Connector position ................................................................................................... 8-25
(7-2) PWB photograph ...................................................................................................... 8-25
(7-3) Connector lists.......................................................................................................... 8-26
(8) PF main PWB (Optional Paper Feeder) ............................................................................ 8-29
(8-1) Connector position ................................................................................................... 8-29
(8-2) PWB photograph ...................................................................................................... 8-29
(8-3) Connector lists.......................................................................................................... 8-30

9 Appendixes
9-1 Appendixes ............................................................................................................................... 9-1
(1) Repetitive defects gauge ..................................................................................................... 9-1
(2) Firmware environment commands ...................................................................................... 9-2
(3) System Error (Fxxxx) Outline .............................................................................................. 9-9
(4) Wiring diagram .................................................................................................................. 9-13

Installation Guide
PF-5100 (Paper Feeder)
 2NR/2NS/2NT-1

1 Specifications
1-1 Specifications
(1) Common functions

Item Specifications
Product Name ECOSYS P6130cdn (30 ppm)
ECOSYS P6035cdn (35 ppm)
ECOSYS P7040cidn (40 ppm)
Type Desktop
Printing Method Electrophotography by semiconductor laser
Paper Weight Cassette 60 to 163 g/m2
Multi Purpose 60 to 220 g/m2, 230 g/m2 (Cardstock)
Tray
Paper Type Cassette Plain, Rough, Recycled, Vellum, Preprinted, Bond, Color
(Colour),Prepunched, Letterhead, Thick, High Quality, Custom
1 to 8(Duplex: Same as Simplex)
Multi Purpose Plain, Transparency (OHP film), Rough, Vellum, Labels, Recy-
Tray cled,Preprinted, Bond, Cardstock, Coated, Color (Colour),
Prepunched,Letterhead, Envelope, Thick, High Quality, Cus-
tom 1 to 8
Paper Size Cassette A4, A5, A6, B5, B6, Letter, Legal, Statement, Executive,Oficio
II,Folio, 216 × 340 mm, 16K, B5 (ISO),Custom (105 × 148 mm
to 216 × 356 mm)

Multi Purpose A4, A5, A6, B5, B6, Folio, 216 × 340 mm, Letter, Legal, State-
Tray ment,Executive, Oficio II, 16K, B5 (ISO), Envelope #10, Enve-
lope #9,Envelope #6 3/4, Envelope Monarch, Envelope DL,
Envelope C5,Hagaki (Cardstock), Oufuku Hagaki (Return
postcard), Youkei 4,Youkei 2, Custom (70 × 148 mm to 216 ×
356 mm)
Warm-up Time Power on 26 seconds or less (30 ppm models)
(22°C/71.6°F, 25 seconds or less (35 ppm models)
60%) 24 seconds or less (40 ppm models)
Sleep 17 seconds or less (30 ppm models)
19 seconds or less (35 ppm models)
21 seconds or less (40 ppm models)
Paper Capac- Cassette 500 sheets (80 g/m2)
ity
Multi Purpose 100 sheets (80 g/m2)
Tray
Output Tray Top tray 250 sheets (80 g/m2) (30 ppm models)
Capacity 500 sheets (80 g/m2) (35/40 ppm models)
Image Write System Semiconductor laser and electrophotography
Photoconductor OPC (drum diameter 30 mm) (30/35 ppm models)
a-Si (drum diameter 30 mm) (40 ppm models)

1-1
 2NR/2NS/2NT

Item Specifications
Charging system Charger roller
Developing system Touch down developing system
Developer: 2-component
Toner replenishing: Automatic from a toner container
Transfer system Primary: Transfer belt
Secondary: Transfer roller
Separation system Small diameter separation, discharger needle (GND)
Cleaning system Drum: Counter blade
Transfer belt: Fur brush
Charge erasing system Exposure by cleaning lamp (LED)
Fixing system Heat and pressure fusing with the heat roller and the press
roller
Heat source: halogen heater
Abnormally high temperature protection devices: thermostat
Memory 512 MB
Interface Standard USB Interface Connector: 1 (Hi-Speed USB)
Network interface: 1
(10 BASE-T/100 BASE-TX/1000 BASE-T)
USB Port: 2 (Hi-Speed USB)
Option eKUIO: 1
Operating Temperature 10 to 32.5°C/50 to 90.5°F
Environment Humidity 10 to 80 %
Altitude 3,500 m/11,482 ft maximum
Brightness 1,500 lux maximum
Dimension (W × D × H) (30 ppm models)
15 23/64 × 20 61/64 × 16 1/8
390 × 532 × 409.5 mm
(35/40 ppm models)
15 23/64 × 20 61/64 × 18 31/64
390 × 532 × 469.5 mm
Weight (30 ppm models)(without toner container)
Approx. 61.7 lb/Approx. 28.0 kg
(35 ppm models)(without toner container)
Approx. 63.9 lb/Approx. 29.0 kg
(40 ppm models)(without toner container)
Approx. 67.2 lb/Approx. 30.5 kg

1-2
 2NR/2NS/2NT-1

Item Specifications
Space Required (W × D)(Using 15 23/64 × 28 37/64
multi purpose tray) 390 × 725.8 mm
Power Source (30 ppm models)
120 V Specification Model: 120 V 60 Hz 9.0 A
230 V Specification Model: 220 to 240 V 50/60 Hz 5.0 A
(35 ppm models)
120 V Specification Model: 120 V 60 Hz 10.0 A
230 V Specification Model: 220 to 240 V 50/60 Hz 5.6 A
(40 ppm models)
120 V Specification Model: 120 V 60 Hz 11.3 A
230 V Specification Model: 220 to 240 V 50/60 Hz 5.8 A

(2) Printer Functions

30 ppm models
Item Description
Printing Speed Black and A4-R 30 sheets/min
White Printing Letter-R 32 sheets/min
Legal 26 sheets/min
B5 27 sheets/min
A5 27 sheets/min
A6 27 sheets/min
Full Color A4-R 30 sheets/min
Printing Letter-R 32 sheets/min
Legal 26 sheets/min
B5 27 sheets/min
A5 27 sheets/min
A6 27 sheets/min
First Print Black and 7.0 seconds or less
Time White
Color 8.0 seconds or less
(A4, feed from
Cassette)
Resolution 600 × 600 dpi, 9600 dpi equivalent × 600 dpi
Operating System Windows XP, Windows Server 2003, Windows Vista, Windows
7,Windows 8, Windows 8.1, Windows Server 2008/R2,Win-
dows Server 2012/R2, Mac OS 10.5 or later
Interface USB Interface Connector: 1 (Hi-Speed USB)
Network interface: 1
(10 BASE-T/100 BASE-TX/1000 BASE-T)
Optional Interface (Option): 1
(For IB-50/IB-51/HD-6/HD-7 mounting)
Page Description Language PRESCRIBE
Emulations PCL6 (PCL-XL, PCL5c), KPDL3, XPS

1-3
 2NR/2NS/2NT-1

35 ppm models
Item Description
Printing Speed Black and A4-R 35 sheets/min
White Printing Letter-R 37 sheets/min
Legal 30 sheets/min
B5 35 sheets/min
A5 35 sheets/min
A6 35 sheets/min
Full Color A4-R 35 sheets/min
Printing Letter-R 37 sheets/min
Legal 30 sheets/min
B5 35 sheets/min
A5 35 sheets/min
A6 35 sheets/min
First Print Black and 6.5 seconds or less
Time White
Color 7.5 seconds or less
(A4, feed from
Cassette)
Resolution 600 × 600 dpi, 9600 dpi equivalent × 600 dpi
Operating System Windows XP, Windows Server 2003, Windows Vista, Windows
7,Windows 8, Windows 8.1, Windows Server 2008/R2,Win-
dows Server 2012/R2, Mac OS 10.5 or later
Interface USB Interface Connector: 1 (Hi-Speed USB)
Network interface: 1
(10 BASE-T/100 BASE-TX/1000 BASE-T)
Optional Interface (Option): 1
(For IB-50/IB-51/HD-6/HD-7 mounting)
Page Description Language PRESCRIBE
Emulations PCL6 (PCL-XL, PCL5c), KPDL3, XPS

40 ppm models
Item Description
Printing Speed Black and A4-R 40 sheets/min
White Printing Letter-R 42 sheets/min
Legal 34 sheets/min
B5 40 sheets/min
A5 40 sheets/min
A6 40 sheets/min
Full Color A4-R 40 sheets/min
Printing Letter-R 42 sheets/min
Legal 34 sheets/min
B5 40 sheets/min
A5 40 sheets/min
A6 40 sheets/min

1-4
 2NR/2NS/2NT-1

Item Description
First Print Black and 6.0 seconds or less
Time White
Color 7.0 seconds or less
(A4, feed from
Cassette)
Resolution 600 × 600 dpi, 9600 dpi equivalent × 600 dpi
Operating System Windows XP, Windows Server 2003, Windows Vista, Windows
7,Windows 8, Windows 8.1, Windows Server 2008/R2,Win-
dows Server 2012/R2, Mac OS 10.5 or later
Interface USB Interface Connector: 1 (Hi-Speed USB)
Network interface: 1
(10 BASE-T/100 BASE-TX/1000 BASE-T)
Optional Interface (Option): 1
(For IB-50/IB-51/HD-6/HD-7 mounting)
Page Description Language PRESCRIBE
Emulations PCL6 (PCL-XL, PCL5c), KPDL3, XPS

(3) Paper Feeder (500-sheet) (Option)

Item Description
Paper feed system Friction roller feeder
(No. Sheets: 500, 80 g/m²)
Paper Size A4, A5, B5, B6, Folio, 216 × 340 mm, Letter, Legal, Statement,Execu-
tive, Oficio II, 16K, B5 (ISO), Envelope #10, Envelope #9,Envelope #6 3/
4, Envelope Monarch, Envelope DL, Envelope C5,Youkei 4, Youkei 2,
Custom (92 × 162 to 216 × 356 mm)
Supported Paper Paper weight: 60 to 220 g/m²
Media types: Plain, Rough, Recycled, Preprinted, Labels, Bond,Vellum,
Color (Colour), Prepunched, Letterhead, Envelope, Coated,Thick, High
Quality, Custom 1 to 8
Dimensions 15 23/64 × 20 61/64 × 4 37/64390 × 532 × 116 mm
(W) × (D) × (H)
Weight 9.0 lbs. or less/ 4.1 kg or less

1-5
 2NR/2NS/2NT

1-2 Parts names

(1) Machine Exterior
30 ppm models






 


35/40 ppm models






 


1. Top Tray 6. USB Memory Slot

2. Paper Stopper 7. Operation Panel
3. Cassette 1 8. Handles
4. Power Switch 9. Rear Cover 1
5. Handles

1-6
 2NR/2NS/2NT

(2) Connectors/Interior
30 ppm models



 







1-7
 2NR/2NS/2NT

35/40 ppm models



 







1. Network Interface Connector 8. Paper Width Guides

2. USB Port 9. Multi Purpose Tray
3. USB Interface Connector 10. Paper Width Guides
4. Option Interface 11. Fuser Cover
5. Feed Cover
6. Size Dial
7. Paper Length Guide

1-8
 2NR/2NS/2NT

30 ppm models











35/40 ppm models











12. Toner Container (Black) 16. Toner Container Lock Lever

13. Toner Container (Magenta) 17. Waste Toner Cover
14. Toner Container (Cyan) 18. Waste Toner Box
15. Toner Container (Yellow)

1-9
 2NR/2NS/2NT

(3) With Optional Equipments Attached

30 ppm models





 

35/40 ppm models

 
 
 

1. Cassette 2 4. Rear Cover 2

2. Cassette 3 5. Rear Cover 3
3. Cassette 4 6. Rear Cover 4

1-10
 2NR/2NS/2NT

Part Names of Paper Feeder

3
4
4

1. Cassette
2. Paper size window
3. Interface Connector
4. Positioning pin

1-11
 2NR/2NS/2NT

(4) Operation Panel Keys

(4-1) 30 ppm models

Displays the Menu screen.

Message display :
Displays the setting menu
and error messages.

• Increments or decrements
numbers, or selects menu
in the message display.
• When a specific error
occurs, select the [ ]
key to show the Help
screen.
Finalizes a function or menu,
and numbers that have been
entered.

Clears a specific error, and Exits the operation for the

wakes the machine from the current user (i.e. log out).
sleep state.
Cancel a printing job.

Flashing. Indicates an error that you can resolve.

On. Indicates that the printer is ready and on-line.
Off. Indicates that the printer is off-line because printiQJLVPDQXDOO\VWRSSHGRU
DXWRPDWLFDOO\VWRSSHGGXHWRan error condition.
Flashing. Indicates that a data is being received.
On. Indicates that data received is being processed.
Flashing, On. The printer cannot print due to an error.

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 2NR/2NS/2NT

(4-2) 35/40 ppm models

Displays the Menu screen. Select Key :

Selects the menu
displayed at the bottom of
Increments or decrements the message display.
numbers, or selects menu in
the message display. In
addition, moves the cursor
when entering the characters.
Finalizes a function or menu,
and numbers that have been
entered.
Message display :
Returns to the previous
Displays the setting menu
display.
and error messages.

Select Key :
Selects the menu
displayed at the bottom
of the message display.

Numeric keys.
Enter numbers and symbols.

Displays the Document Box

screen.

Exits the operation for the

current user (i.e. log out).

Cancels or pauses the job in

progress.

Flashing. Indicates an error that you can resolve.

On. Indicates that the printer is ready and on-line.
Off. Indicates that the printer is off-line because printiQJLVPDQXDOO\
VWRSSHGRUDXWRPDWLFDOO\VWRSSHGGXHWRan error condition.
Flashing. Indicates that a data is being received.
On. Indicates that data received is being processed.
Flashing, On. The printer cannot print due to an error.

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 2NR/2NS/2NT

1-3 Options
The following optional equipment is available for the machine.
30 ppm models

(1) Card Authentication Kit(B)

(2) PF-5100

(3) Expansion Memory

(7) SD Card
SDHC Card

Software option
(8) Data Security kit(E)

(9) UG-33
(4) HD-6/HD-7 (5) IB-50 (6) IB-51

1-14
 2NR/2NS/2NT

35/40 ppm models

(1) Card Authentication Kit(B)

(2) PF-5100

(3) Expansion Memory

(7) SD Card
SDHC Card

Software option
(8) Data Security kit(E)

(9) UG-33 (4) HD-6/HD-7 (5) IB-50 (6) IB-51

1-15
 2NR/2NS/2NT

This page is intentionally left blank.

1-16
 2NR/2NS/2NT

2 Installation
2-1 Environment
The operative environmental conditions are as follows:
Temperature: 50 to 90.5°F (10 to 32.5°C)
(But humidity should be 70% or less when the temperature is 90.5°F
(32.5°C).)
Humidity: 10 to 80%
(But the temperature should be 86°F (30°C) or less when humidity is 80%.)

Adverse environmental conditions may affect the image quality. It is recommended to use the machine as fol-
lows:
Temperature: 60.8 to 80.6 °F or less (16 to 27 °C)
Humidity: 36 to 65%

Avoid the following locations when selecting a site for the machine.
Avoid locations near a window or with exposure to direct sunlight.
Avoid locations with vibrations.
Avoid locations with rapid temperature fluctuations.
Avoid locations with direct exposure to hot or cold air.
Avoid poorly ventilated locations.
If the floor is delicate against casters, when this machine is moved after installation, the floor material may be
damaged.
During operation, some ozone is released, but the amount does not cause any ill effect to one's health.
If, however, the machine is used over a long period of time in a poorly ventilated room or when making an
extremely large number of printings, the smell may become unpleasant. To maintain the appropriate environ-
ment for copy work, it is suggested that the room be properly ventilated.

Installation space

400 mm
400 mm (15-3/4")
(15-3/4")

200 mm 200 mm 200 mm 200 mm 450 mm 350 mm

(7-7/8") (7-7/8") (7-7/8") (7-7/8") (17-23/32") (13-25/32")
Figure 2-1

2-1
 2NR/2NS/2NT

2-2 Installing the machine

Installation procedures

Start

Unpacking and checking bundled items

Setting up the Toner Container

Connecting the Interface Cable

Loading Paper

Connecting the Power Cord

Power On

Default Setting

Installing Software

Output the status report

Completion of the machine installation

2-2
 2NR/2NS/2NT

(1) Unpacking and checking bundled items

Take out the main unit and accessories from the packing case.
Remove the tape and cushioning materials for packing from the main unit.
30 ppm models
USA model

6 7 15
13

4 5 14
8

9
12
2 11
3
16

1 10

Figure 2-2

1. Outer case 7. Operation guide, etc. 12. Left bottom pad

2. Front left upper pad 8. Plastic bag 13. Left upper pad
3. Front right upper pad 9. Document tray 14. Bottom pad
4. Rear left upper pad 10. Main unit 15. Machine cover
5. Rear right upper pad 11. Vaccum plastic bag for main 16. Sheet
6. Power cord unit

Note: Make sure to install the main unit on a level surface.

2-3
 2NR/2NS/2NT

Except for USA model

5
4 12
10
6

7 11

2
9 3
13

1 8

Figure 2-3

1. Outer case 6. Plastic bag 10. Left bottom pad

2. Left upper pad 7. Document tray 11. Bottom pad
3. Right upper pad 8. Main unit 12. Machine cover
4. Power cord 9. Vaccum plastic bag for main 13. Sheet
5. Operation guide, etc. unit

Note: Make sure to install the main unit on a level surface.

2-4
 2NR/2NS/2NT

35/40 ppm models

USA model

7 8
6
16
14

9
4 15
5
10
3

13 2 12
17

1 11

Figure 2-4

1. Outer case 8. Operation guide, etc. 14. Left upper pad

2. Front left upper pad 9. Plastic bag 15. Bottom pad
3. Front right upper pad 10. Document tray 16. Machine cover
4. Rear left upper pad 11. Main unit 17. Sheet
5. Rear right upper pad 12. Vaccum plastic bag for main
6. Waste toner box unit
7. Power cord 13. Left bottom pad

Note: Make sure to install the main unit on a level surface.

2-5
 2NR/2NS/2NT

Except for USA model

6
11 4 5 13
7

8 12

2
10 3
14

1 9

Figure 2-5

1. Outer case 7. Plastic bag 12. Bottom pad

2. Left upper pad 8. Document tray 13. Machine cover
3. Right upper pad 9. Main unit 14. Sheet
4. Waste toner box 10. Vaccum plastic bag for main
5. Power cord unit
6. Operation guide, etc. 11. Left bottom pad

Note: Make sure to install the main unit on a level surface.

2-6
 2NR/2NS/2NT

* : Notes on main unit transportation

When transporting the main unit, lift the left and right of the main unit base with two people as shown in
the figure.

Figure 2-6

(2) Setting up the Toner Container

Set up the toner container of C, M, Y, and K. The procedures are same for all colors.

1 2 K
33
M
C
Y

Figure 2-7

(3) Connecting the Interface Cable

Connection environment Necessary Cable

Connect a LAN cable to the main unit. LAN cable (10Base-T, 100Base-TX or1000Base-T)
Connect a USB cable to the main unit. USB2.0 compatible cable (Hi-Speed USB
compliant, Max. 5.0m long)

2-7
 2NR/2NS/2NT

In the case of the LAN connection

1. Connect the LAN cable to the network interface connector.
2. Connect the other end of the cable to the hub.

Figure 2-8

In the case of the USB connection

1. Connect the USB cable to the USB interface connector located on the left side of the main unit.
2. Connect the other end of the cable to the PC.

Figure 2-9

2-8
 2NR/2NS/2NT-1

(4) Loading Paper

The cassettes can hold plain paper, recycled paper or color paper.
The number of sheets that can be loaded in each cassette is as shown below.
Cassette No. of sheets
Cassette 1 to 4 500 sheets (Plain paper: 80g/m2)

* : A6 size paper can not be loaded in Cassette 2 to 4.

IMPORTANT
Cassette 1 can hold paper with the weight between 60 - 163g/m2.
Cassettes 2 to 4 can hold paper with the weight between 60 - 220g/m2.

1. Pull the cassette completely out of the main unit.

Figure 2-10
NOTE
When pulling the cassette out of the main unit, make sure it is supported and does not fall out.

2. Adjust the paper size of the cassette.

1.Adjust the position of the paper width guides located on the left and right sides of the cassette. Press the
tab and slide the guides to the paper size to use.
Paper sizes are marked on the cassette.

Figure 2-11

2-9
 2NR/2NS/2NT

2.Adjust the position of the paper length guide. Press the tab and slide the guides to the paper size to use.

Figure 2-12

2-10
 2NR/2NS/2NT

3.Turn the size dial so that the paper size to use appears in the paper size window.

Figure 2-13

3. Load paper.
1.Fan the paper, then tap it on a level surface to align the edges.
2.Load paper in the cassette by placing the print side face-up.

Figure 2-14
Note
Before loading paper in the cassette, fan the paper taken from a new package to separate it. (see page 2-
13)
Before loading the paper, be sure that it is not curled or folded. Such paper may cause paper jams.
Make sure that the loaded paper does not exceed the level indicator (see the illustration above).
If paper is loaded without adjusting the paper length guide and paper width guides to the paper size to use,
the paper may skew or become jammed.

2-11
 2NR/2NS/2NT

4. Gently insert the cassette all the way

into the main unit.

Figure 2-15

2-12
 2NR/2NS/2NT

Precaution for Loading Paper

Before loading paper in the cassette or MP tray, treat the paper taken from a new package to separate it in
the following steps.

Figure 2-16

Fan the paper, then tap it on a level surface to align the edges.
In addition, note the following points.
If the paper is curled or folded, straighten it before loading. Such paper may cause a jam.
Avoid exposing paper taken from a package to high temperatures and high humidity as dampness can be
a cause of problems. Seal any remaining paper after loading in the MP tray or cassettes back in the paper
storage bag.
If the machine will not be used for a prolonged period, protect all paper from humidity by removing it from
the cassettes and sealing it in the paper storage bag.

Note
If you print onto paper already used for printing, do not use it with a staple or clip. This may cause poor
image quality or malfunctions.

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 2NR/2NS/2NT

(5) Connecting the Power Cord

1. Connect one end of the supplied power cord to the main unit and the other end to a power outlet.
* : Only use the power cord that comes with the main unit.

Figure 2-17

(6) Turn the power on.

1. Turn the power switch on.

Figure 2-18
Note
After turning off the power switch, do not turn on the power switch again immediately. Wait 5 seconds or
more, and then turn on the power switch.

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(7) Default Setting (for 30 ppm model)

(7-1) Setting Date and Time
Follow the steps below to set the local date and time at the place of installation.
1. Display the screen.
1.[Menu] key > [▲] [▼] key > [Device Common] > [OK] key > [►] key > [▲] [▼] key >[Date Set-
ting] > [►] key

2.Enter the administrator ID and select the [OK] key.

* :Enter an ID consisting of between 1 and 16 numbers.
Select the [▲] or [▼] key to enter a number.
Select the [◄] or [►] key to move the cursor left or right.
3.Enter the administrator password and select [OK] key.
* : Enter a password consisting of between 0 (no settings) and 16 numbers.
Select the [▲] or [▼] key to enter a number.
Select the [◄] or [►] key to move the cursor left or right.

2. Configure the settings.

[▲] [▼] key > [Time Zone] > [OK] key > Select the time zone > [OK] key > [▲] [▼] key >[Date/Time] >
Set the date/time > [OK] key > [▲] [▼] key
[Date (Year/Mon/Day)] > [OK] key > Set the date > [OK] key > [▲] [▼] key >
[Time (Hour:Min:Sec)] > [OK] key > Set the time > [OK] key > [▲] [▼] key > [Date Format] >
[OK] key > Select the Date Format > [OK] key

* : Select the [▲] or [▼] key to enter a number.

Select the [◄] or [►] key to move the position being entered, which is shown highlighted.

(7-2) Network Setup (LAN Cable Connection)

TCP/IP Settings
IPv4 setting
Set up TCP/IP (IPv4) to connect to the Windows network.

1. Display the screen.

[Menu] key > [▲] [▼] key > [Network] > [►] key > [▲] [▼] key > [TCP/IP] > [OK] key

2. Configure the settings.

When setting the static IP address
1.[▲] [▼] key > [On] > [OK] key
2.Select [►] key while "TCP/IP On" is displayed.
3.[▲] [▼] key > [DHCP] > [OK] key > [▲] [▼] key > [Off] > [OK] key > [▲] [▼] key > [DHCP] >
[OK] key > [▲] [▼] key > [Off] > [OK] key
4.[▲] [▼] key > [IP Address] > [OK] key
5. Set the IP address.
* :You can set any value between 000 and 255.
Select the [▲] or [▼] key to enter a number.
Select the [◄] or [►] key to move the cursor left or right.
6.Select the [OK] key.
7.[▲] [▼] key > [Subnet Mask] > [OK] key
8.Set the subnet mask.
* :You can set any value between 000 and 255.

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 2NR/2NS/2NT-1

9.Select the [OK] key.

10.[▲] [▼] key > [Default Gateway] > [OK] key
11.Set the default gateway.
* :You can set any value between 000 and 255.
12.Select the [OK] key.

IMPORTANT
After changing the setting, restart the network from the System Menu, or turn the power off and then on.

(7-3) Altitude Adjustment Setting

Execute [Altitude Adjustment] from the System Menu when setting up at a high altitude place.
When the printing quality declines in the environment of an altitude higher than 1000m sea level, the setting of
[Altitude Adjustment] mode can recover the printing quality.

1. Press the [Menu] key.

2. Select [Adjustment/Maintenance] using the [▲] [▼] key, then press the [OK] key.
3. Select [Service Setting] using the [▲] [▼] key, then press the [OK] key.
4. Select [Altitude Adjustment] using the [▲] [▼] key, then press the [OK] key.
5. Select [Normal], [1001 - 2000m], [2001 - 3000m] or [3001 - 3500m] using the [▲] [▼] key, then press the
[OK] key.

* : Description of setting
Normal: Altitude from 0 to 1000m

(8) Default Setting (for 35/40 ppm model)

(8-1) Setting Date and Time
Follow the steps below to set the local date and time at the place of installation.
1. Display the screen.
[Menu] key > [▲] [▼] key > [Device Common] > [OK] key > [▲] [▼] key > [Date Setting] >
[OK] key

2. Configure the settings.

[▲] [▼] key > [Time Zone] > [OK] key > Select the time zone > [OK] key > [▲] [▼] key >[Date] > [OK]
key > Set the date > [OK] key > [▲] [▼] key > [Time] > [OK] key > Set the time >[OK] key > [▲] [▼] key
> [Date Format] > [OK] key > Select the Date Format > [OK] key
[OK] key > Set the date > [OK] key > [▲] [▼] key > [Time] > [OK] key > Set the time >
[OK] key > [▲] [▼] key > [Date Format] > [OK] key > Select the Date Format > [OK] key

* : Select the [▲] or [▼] key to enter a number.

Select the [◄] or [►] key to move the position being entered, which is shown highlighted.

2-16
 2NR/2NS/2NT-1

(8-2) Network Setup (LAN Cable Connection)

TCP/IP Settings
IPv4 setting
Set up TCP/IP (IPv4) to connect to the Windows network.
The default settings are "TCP/IP: [On], DHCP: [On], Auto-IP: [On]".

1. Display the screen.

[Menu] key > [▲] [▼] key > [Network] > [OK] key > [▲] [▼] key >
[TCP/IP Settings] > [OK] key > [▲] [▼] key > [IPv4 Setting] > [OK] key

2. Configure the settings.

When setting the static IP address
1. [▲] [▼] key > [DHCP] > [OK] key > [▲] [▼] key > [Off] > [OK] key
2. [▲] [▼] key > [IP Address] > [OK] key
3. Set the IP address.
* :You can set any value between 000 and 255.
Use the numeric keys or select the [▲] or [▼] key to enter a number.
Select the [◄] or [►] key to move the position being entered, which is shown highlighted.
4.Select the [OK] key.
5.[▲] [▼] key > [Subnet Mask] > [OK] key
6.Set the subnet mask.
* :You can set any value between 000 and 255.
7.Select the [OK] key.
8.[▲] [▼] key > [Default Gateway] > [OK] key
9.Set the default gateway.
* :You can set any value between 000 and 255.
10.Select the [OK] key.

IMPORTANT
After changing the setting, restart the network from the System Menu, or turn the power off and then on.

(8-3) Altitude Adjustment Setting

Execute [Altitude Adjustment] from the System Menu when setting up at a high altitude place.
When the printing quality declines in the environment of an altitude higher than 1000m sea level, the setting of
[Altitude Adjustment] mode can recover the printing quality.

1. Press the [Menu] key.

2. Select [Adjustment/Maintenance] using the [▲] [▼] key, then press the [OK] key.
3. Select [Service Setting] using the [▲] [▼] key, then press the [OK] key.
4. Select [Altitude Adjustment] using the [▲] [▼] key, then press the [OK] key.
5. Select [Normal], [1001 - 2000m], [2001 - 3000m] or [3001 - 3500m] using the [▲] [▼] key, then press the
[OK] key.
* : Description of setting
Normal: Altitude from 0 to 1000m

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 2NR/2NS/2NT

(9) Installing Software

1. Install appropriate software in your PC from the bundled DVD (Product Library), when you use the printer
function. See the Operation Guide supplied with the main unit.

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 2NR/2NS/2NT

(10) Output of Status Page

30 ppm model

1. Press the [Menu] key.

Figure 2-19

2. Select [Report Print], then press the [►] key.

3. Select [Print Status Page], then press the [OK] key.

1
Report Print >

1
> Print Status Page

2
Figure 2-20

4. After the [?] is added, press the [OK] key.

> Print Status Page ?

Figure 2-21
Status page will be printed.

2-19
 2NR/2NS/2NT

35/40 ppm models

1. Press the [Menu] key.

[Menu]Key

Figure 2-22

2. Select [Report], then press the [OK] key.

3. Select [Report Print], then press the [OK] key.
Menu: 1
01 Report
02 USB Memory
03 Counter
Exit
2
Report: 1
01 Report Print
02 Job Log History

Exit
2
Figure 2-23

4. Select [Print Status Page], then press the [OK] key.

5. After the message "This will be printed. Are you sure?" appears, press [OK].

Status page will be printed.

1
Report Print:
01 Menu Map
02 Status Page
03 Font List
Exit 2

Yes No

Figure 2-24

2-20
 2NR/2NS/2NT-1

(11) Completion of installing the main unit (Turning the power off)
1. Make sure that each indicator is not flashing, and then turn the power switch off.

&KHFNWKDWWKHLQGLFDWRUVDUHRII

Figure 2-25

IMPORTANT
When the "Data" indicator is lit up, the main unit is operating. Turning the power switch off while the main
unit is operating may cause malfunctions.

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 2NR/2NS/2NT

2-3 Installing the optional equipment

(1) Card Authentication Kit(B)
User login administration is available using ID cards. To do so, it is necessary to register ID card informa-
tion on the previously registered local user list. Refer to the Card Authentication Kit Operation Guide for
more information about registration.

Activating Card Authentication Kit

Note:
To install the optional function, you need the License Key. Please access the designated website of your
dealer or service representative, and register the "Machine No." indicated on your machine and the "Prod-
uct ID" indicated on the License Certificate supplied with the product to issue the License Key.

* : When the machine enters Energy Saver sleep mode, the ID card cannot be recognized. If you want to
use the card reader during the sleep mode, set [Off] in "Sleep Rules" of [Sleep Level] by referring to the
operation guide.
* : When the optional network interface kit is equipped, the setting is unnecessary.

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 2NR/2NS/2NT

(2) Paper Feeder (500-sheet x1)

Three cassettes the same as the one for the main unit can be installed. Installation is the same as the stan-
dard cassette.

Installing the Paper Feeder

1. Take out the paper feeder (a) from the packing case, and place it at the installation location.
2. Lift the main unit straight up, and then fit it on the paper feeder while inserting the positioning pins (b)
into the positioning holes at the main unit bottom.
Maximum number to install: three

a
Figure 2-26

2-23
 2NR/2NS/2NT

3. Pull out the cassette (b) from the paper feeder (a).

a
b
Figure 2-27

4. Adjust the position of the paper guides. Press the tab and slide the guides to the paper size to use.
* : Paper sizes are marked on the cassette.

Figure 2-28

5. Adjust the paper length guide to the paper size required. Press the tab and slide the guides to the paper
size to use.

Figure 2-29

2-24
 2NR/2NS/2NT

6. Turn the size dial so that the paper size to use appears in the paper size window.

Figure 2-30

7. Fan the paper taken from a package to separate it, and then tap it on a level surface to align the edges.

Figure 2-31

8. Load paper in the cassette by placing the print side face-up.

* : Make sure that the loaded paper does not exceed the level indicator (see the illustration above).

Figure 2-32

2-25
 2NR/2NS/2NT

9. Push the cassette (b) back in the paper feeder (a).

a
b
Figure 2-33

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 2NR/2NS/2NT

(3) Memory Module

The machine can perform more multiple jobs simultaneously by adding more memory. You can increase
the machine's memory up to 2,048 MB by plugging in the optional memory modules (2,048 MB).

Precautions for Handling the Memory Modules

Figure 2-34

To protect electronic parts, discharge static electricity from your body by touching a water pipe (faucet) or
other large metal object before handling the memory modules. Or, wear an antistatic wrist strap, if possi-
ble, when you install the memory modules.

Installing a Memory Module

1. Turn off the main unit and disconnect the power cord and all interface cables.
* : Remove the optional IB-50/51, HD-6/7, if installed.
2. Remove the cover.

Figure 2-35

3. Remove the memory module from its package.

4. With the memory connection terminal pointing toward the socket, align the cut-out part with the socket
terminal and insert it straight in on an angle.
* : Before inserting the memory module, make sure that the power switch is turned off.

2-27
 2NR/2NS/2NT

Figure 2-36

5. Carefully press the inserted memory module toward the main unit.
6. Reattach the cover.

Removing the Memory Module

To remove the memory module, remove the right cover and the memory slot cover from the main unit. Then,
carefully push the two stoppers so that the memory module pops up from the socket.

Verifying the Memory Module

To verify that the memory module is working properly, print out a status page and check its content.

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 2NR/2NS/2NT

(4) HD-6/HD-7 (SSD)

With an SSD installed in the main unit, received print data can be rasterized and stored in the SSD. This
enables high-speed printing of multiple copies using the electronic sort function. Also, you can use the
Document Box functions. See "Document Box" in the Operation Guide supplied with the main unit for
details.

(5) IB-50 (Network Interface Kit)

The Network Interface Kit provides a high-speed connection for the Gigabit-per-second interface. Network
printing is available with the network protocols such as TCP/IP and NetBUEI for a variety of OS of Win-
dows, Macintosh and UNIX . See the Operation Guide supplied with the IB-50 for details.
The installation procedures are same as for an SSD.

(6) IB-51 (Wireless Network Interface Kit)

This is a wireless LAN interface card which supports the wireless LAN specifications IEEE802.11n (Max
300Mbps) and 11g/b.
With the utilities supplied, settings are possible for a variety of OS and network protocols. See the Opera-
tion Guide supplied with the IB-51 for details.
The installation procedures are same as for an SSD.

Installing the SSD/IB-50/IB-51

1. Turn the power switch off and unplug the power cord from the outlet.

&KHFNWKDWWKHLQGLFDWRUVDUHRII
Figure 2-37

2. Remove the interface cover.

Figure 2-38

2-29
 2NR/2NS/2NT

3. Remove two screws (M3x8) and remove the cover.

Figure 2-39

4. Insert it straight into the optional interaface slot.

Figure 2-40

5. Remove the breakaway cover from the interface cover. Reattach the interface cover to its original posi-
tion.

Figure 2-41

2-30
 2NR/2NS/2NT

6. Insert the power cord into the outlet and turn the power switch on.

Figure 2-42

Formatting an SSD
30 ppm models
1. [Menu] key > [▲] [▼] key > [Device Common] > [►] key > [▲] [▼] key > [SSD] > [►] key
2. Format an optional SSD.
35/40 ppm models
1. [Menu] key > [▲] [▼] key > [Device Common] > [OK] key > [▲] [▼] key > [Format SSD] >
[OK] key
2. Format an optional SSD.
* : When an optional SSD is inserted into the main unit for the first time, it must be formatted before use.

IMPORTANT
Formatting will delete all existing data on an SSD.

(7) SD/SDHC Card

An SD/SDHC card is useful for storing fonts, macros, and overlays. The main unit is equipped with a slot for
an SDHC card with a maximum size of 32GB, and an SD card with a maximum size of 2GB.

Reading the SD/SDHC Card

The contents of the SD/SDHC card are read into the main unit after turning the power on.

Formatting an SD/SDHC Card

To use an unused SD/SDHC card, you must first format it with the main unit.

1. Turn the power switch off and unplug the power cord from the outlet.

&KHFNWKDWWKHLQGLFDWRUVDUHRII
Figure 2-43

2-31
 2NR/2NS/2NT

2. Remove the interface cover.

Figure 2-44

3. Remove two screws (M3x8) and remove the cover.

Figure 2-45

4. Insert the SD/SDHC card into the SD/SDHC card slot.

Figure 2-46

5. Remove the breakaway cover from the interface cover. Reattach the interface cover to its original posi-
tion.

Figure 2-47

2-32
 2NR/2NS/2NT

6. Insert the power cord into the outlet and turn the power switch on.

Figure 2-48

Formatting an SD Card
30 ppm models
1. [Menu] key > [▲] [▼] key > [Device Common] > [►] key > [▲] [▼] key >[SD card] > [►] key
2. Format an optional SD card.
35/40 ppm models
1. [Menu] key > [▲] [▼] key > [Device Common] > [OK] key > [▲] [▼] key > [Format SD Card] >[OK] key
2. Format an optional SD card.
* : A new SD card must be formatted with the main unit before use.

IMPORTANT
Formatting will delete all existing data on the SD card.
If you have installed an application, do not format the SD card to avoid the removal of the application in the
SD card.

(8) Data Security Kit(E) (Data Security Kit)

The Data Security Kit overwrites all unnecessary data in the storage area so that it cannot be retrieved. The
Data Security Kit encrypts data before storing it in the SSD. It guarantees higher security because no data can
be decrypted by ordinary output or operations.

(9) UG-33 (ThinPrint Option)

This application enables print data to print directly without a printer driver.

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 2NR/2NS/2NT

2-4 Optional Applications

The applications listed below are installed in this machine.

Application
Data Security Kit
Card Authentication Kit
ThinPrint Option *1

*1: This can be used on a trial basis for a limited time.

* : Restrictions such as the number of times the application can be used during the trial period differ
depending on the application.
* : If you change the date/time while using the trial version of an application, you will no longer be able to
use the application.

Starting Use of an Application

Use the procedure below to start using an application.
1. [Menu] key > [▲] [▼] key > [Op Functions] > [OK] key

If the login user name entry screen appears during operations, enter a login user name and password, and
select [Login]. For this, you need to login with administrator privileges.
The factory default login user name and login password are set as shown below.
Model name Login User Name Login Password
30 ppm models 3000 3000
35 ppm models 3500 3500
40 ppm models 4000 4000

2. Select the desired application and select [OK] key.

3. [▲] [▼] key > [License On] > [OK] key
4. [▲] [▼] key > [Official] > [OK] key
* : To use the application as a trial, select [Trial] without entering the license key.
5. Enter a license key > [OK] key
* : Some applications do not require you to enter a license key. If the license key entry screen does not
appear, go to Step 6.
6. Select [Yes].

If you started the Security Kit or Thin Print option and entered the license key, turn thepower OFF/ON.

Checking Details of an Application

Use the procedure below to check the details of an application.
1. [Menu] key > [▲] [▼] key > [Op Functions] > [OK] key

2-34
 2NR/2NS/2NT

If the login user name entry screen appears during operations, enter a login user name and password, and
select [Login]. For this, you need to login with administrator privileges.
The factory default login user name and login password are set as shown below.
Model name Login User Name Login Password
30 ppm models 3000 3000
35 ppm models 3500 3500
40 ppm models 4000 4000

2. Select the desired application and select [OK] key.

3. [▲] [▼] key > [Detail] > [OK] key
* : You can view detailed information on the selected application.

The table below lists the item you can view.

Item
Function Name
License On
Trial Counts
Date of Trial
Status

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 2NR/2NS/2NT

This page is intentionally left blank.

2-36
 2NR/2NS/2NT

3 Machine Design
3-1 Mechanical Configration
(1) Cross-section view (Main unit)
30 ppm models

18

14 15

17

13 9 12 8 11 7 10 6

16

19
2

5 4
1

Original path / Paper path

Optical path / Paper path (Option)

Figure 3-1

3-1
 2NR/2NS/2NT

(2) Cross-section view (Main unit)

35/40 ppm models

18

14 15

17

13 9 12 8 11 7 10 6

16

19
2

5 4
1

Original path / Paper path

Optical path / Paper path (Option)

Figure 3-2

1. Cassette paper feed section 9. Drum unit Y 16. Secondary transfer and sep-
2. MP paper feed section 10. Developer unit K aration section
3. Paper conveying section 11. Developer unit M 17. Fuser section
4. Laser scanner unit KM 12. Developer unit C 18. Feedshift and eject section
5. Laser scanner unit CY 13. Developer unit Y 19. Duplex conveying section
6. Drum unit K 14. Toner container section
7. Drum unit M 15. Primary transfer section
8. Drum unit C

3-2
 2NR/2NS/2NT

(3) Cross-section view (Optional paper feeder)

Paper path

Figure 3-3

1. Cassette paper feed section

3-3
 2NR/2NS/2NT

(4) Paper conveying and Paper detection

PFS
ES

C DUPCS

A
RS
D MPPCS

MPPS
PS
B
PFFS1
PFPS1

PFFS2
PFPS2

PFFS3
PFPS3

Figure 3-4

[Paper jam] [Sensor (Paper conveying)]

A. Paper jam at the MP tray PFFS1-3: PF conveying sens
B. Paper jam at cassette 1-4 RS: Registration sensor
C. Paper jam at rear cover 2-4 ES: Eject sensor
D. Paper jam at rear cover 1 PFS: PFS: Paper full sensor
E. Paper jam at the duplex section MPPS: MP paper sensor
MPPCS: MP conveying sensor
DUPCS: Duplex sensor*1

*1: for 35/40 ppm models only

3-4
 2NR/2NS/2NT

3-2 Electric parts

(1) Wire connection diagram (Machine right side)

1
2

3 4

Figure 3-5

1. Main/Engine PWB
2. High-voltage PWB
3. Power source PWB
4. Power source fan motor

3-5
 2NR/2NS/2NT

(2) Wire connection diagram (Machine left side)

8 12

9 9 9 9

6 3 4

10 1

11

Figure 3-6

1. Engine relay PWB 8. Duplex eject motor

2. Developer motor 9. Toner motor
3. Drum motor 1 10. LSU fan motor 1
4. Drum motor 2 11. LSU fan motor 2
5. Conveying developer motor 12. Container fan motor
6. Primary transfer motor
7. Fuser motor

3-6
 2NR/2NS/2NT

(3) Descriptions about the major PWBs

(3-1) Main/Engine PWB

It controls the software for the interface and

the image date processing, and the hard-
ware for the generation of the high-voltage
and the bias, and the paper conveying sys-
tem.

Figure 3-7

Figure 3-8

1. SD card socket
2. EEPROM

3-7
 2NR/2NS/2NT

(3-2) Engine relay PWB

It consists of the control to drive each elec-
tric part and the wiring relay circuit to the
Main/Engine PWB.

Figure 3-9

Figure 3-10

3-8
 2NR/2NS/2NT

(3-3) High-voltage PWB

30/35 ppm models
Generating the main charger high-voltage,
the developer bias, the transfer bias and
the transfer cleaning bias.

Figure 3-11

40 ppm models
Generating the main charger high-voltage,
the developer bias, pre-bias and the sec-
ondary transfer bias.

Figure 3-12

3-9
 2NR/2NS/2NT

(3-4) High-voltage PWB (for 40 ppm models)

Generating the primary transfer bias and

the the transfer cleaning bias.

Figure 3-13

(3-5) Power source PWB

The input voltage (AC) from the AC power

supply is changed to DC such as DC24V,
and it controls the fuser heater.

Figure 3-14

(3-6) Operation panel PWB (for 30 ppm models)

It consists of the 2-line LCD, the LED indi-

cator and the key switches.

Figure 3-15

3-10
 2NR/2NS/2NT-1

(3-7) Operation panel PWB (for 35/40 ppm models)

It consists of the 5-line LCD, the LED indi-

cator and the key switches.

Figure 3-16

(3-8) PF main PWB (Optional paper feeder)

It controls the interface to the main unit and

the entire paper feeder.

Figure 3-17

3-11
 2NR/2NS/2NT-1

(4) Electric parts layout

(4-1) PWBs
Toner container
(K,M,C,Y)

Primary transfer unit

Drum unit
27 (K,M,C,Y)
17
16

3 4
7
1
8
9
28
5 10
18 Developer unit
29 (K,M,C,Y)
11
30
2
31
12
13
14
6 15
23
Laser scanner unit
(KM,CY)
25
Machine Right 24
Machine Inner 19
Machine Left Fuser unit 26 20
21
22

Figure 3-18
1. Main/Engine PWB (MEPWB)................ Controlling the entire software to control the interface to the PC
and the network and the image data process, etc.. Controlling the
entire hardware to control the high-voltag
2. Engine relay PWB (ECPWB) ................ Consisiting of the drive control circuit for each electric part and the
wiring relay circuit to the Main/Engine PWB
3. Operation panel PWB (OPPWB) .......... Consisting of the LCD, the LED indicator and the key switches

3-12
 2NR/2NS/2NT-2

4. High-voltage PWB (HVPWB) ................ Generating the main charger high-voltage, the developer bias, the
primary transfer bias*1, pre-bias*2, the secondary transfer bias
and the transfer cleaning bias*1
5. High-voltage PWB 2 (HVPWB2)*2........ Generating the primary transfer bias and the transfer cleaning
bias
6. Power source PWB (PSPWB) .............. Changing the input voltage (AC) from the AC power supply to DC
such as DC24V and controlling the fuser heater
7. Drum PWB K (DRPWB-K) .................... Wiring relay to the electric parts inside drum unit K and storing the
individual drum information in the EEPROM
8. Drum PWB M (DRPWB-M) ................... Wiring relay to the electric parts inside drum unit M and storing
the individual drum information in the EEPROM
9. Drum PWB C (DRPWB-C).................... Wiring relay to the electric parts inside drum unit C and storing the
individual drum information in the EEPROM
10. Drum PWB Y (DRPWB-Y) .................... Wiring relay to the electric parts inside drum unit Y and storing the
individual drum information in the EEPROM
11. Drum relay PWB (DRCPWB)................ Consisting of the wiring relay circuit to the Main/Engine PWB, the
drum units and the developer units
12. Developer PWB K (DLPPWB-K)........... Wiring relay to the electric parts inside developer unit K
13. Developer PWB M(DLPPWB-M)........... Wiring relay to the electric parts inside developer unit M
14. Developer PWB C(DLPPWB-C) ........... Wiring relay to the electric parts inside developer unit C
15. Developer PWB Y(DLPPWB-Y)............ Wiring relay to the electric parts inside developer unit Y
16. Toner container relay PWB
(TCONCPWB)....................................... Consisting of the wiring relay circuit between the Main/Engine
PWB and the toner containers
17. Eject PWB (EJPWB) ............................. Consisting of the wiring relay circuit to the Main/Engine PWB and
each electric part in the eject section
18. Cassette PWB (CPWB) ........................ Consisting of the wiring relay circuit between the engine relay
PWB and each electric part in the cassette
19. APC PWB K(APCPWB-K) .................... Emitting and controlling the laser beam (Black)
20. APC PWB M(APCPWB-M) ................... Emitting and controlling the laser beam (Magenta)
21. APC PWB C(APCPWB-C) .................... Emitting and controlling the laser beam (Cyan)
22. APC PWB Y(APCPWB-Y) .................... Emitting and controlling the laser beam (Yellow)
23. PD PWB K(PDPWB-K) ......................... Controlling the synchronous lateral laser beam (Black)
24. PD PWB M(PDPWB-M) ........................ Controlling the synchronous lateral laser beam (Magenta)
25. PD PWB C(PDPWB-C)......................... Controlling the synchronous lateral laser beam (Cyan)
26. PD PWB Y(PDPWB-Y) ......................... Controlling the synchronous lateral laser beam (Yellow)
27. Zener PWB (FZEPWB) ......................... Controlling the fuser erasing voltage
28. Drum heater PWB K (DHTK)*3............. Controlling the drum K heater voltage
29. Drum heater PWB M (DHTM)*3............ Controlling the drum M heater voltage
30. Drum heater PWB C (DHTC)*3 ............ Controlling the drum C heater voltage
31. Drum heater PWB Y (DHTY)*3............. Controlling the drum Y heater voltage

*1: for 30/35 ppm models only

*2: for 40 ppm models only
*3: for 40 ppm/ Asian models (except China)

3-13
 2NR/2NS/2NT-1

Part name table for the PWBs

No. Name used in service manual Name used in parts list Part.No.
PARTS PWB ASSY MAIN EU 302NR9417_(30 ppm models)
SP 302NS9406_(35 ppm models)
(Except for EU) 302NT9404_(40 ppm models)
1 Main/Engine PWB (MEPWB)
PARTS PWB ASSY MAIN EU 302NR9418_(30 ppm models)
SP 302NS9407_(35 ppm models)
(EU) 302NT9405_(40 ppm models)
302NR9411_(30 ppm models)
PARTS PWB ASSY ENGINE
2 Engine relay PWB (ECPWB) 302NS9404_(35 ppm models)
CONNECT SP
302NT9403_(40 ppm models)
302NR9424_(30 ppm models)
3 Operation panel PWB (OPPWB) PARTS OPERATION ASSY SP 302NS9409_(35/40 ppm
models)
302NR9403_(30/35 ppm
PARTS HIGH VOLTAGE UNIT
4 High-voltage PWB (HVPWB) models)
SP
302NT9401_(40 ppm models)
5 High-voltage PWB2 (HVPWB2)*2 HVU2 302K04504_
302NR9404_(30 ppm models)
PARTS SWITCHING REGULA-
302NS9401_(35/40 ppm
TOR 100V SP (100/120V)
models)
6 Power source PWB (PSPWB)
302NR9405_(30 ppm models)
PARTS SWITCHING REGULA-
302NS9402_(35/40 ppm
TOR 230V SP(230V)
models)
7 Drum PWB K (DRPWB-K)
8 Drum PWB M (DRPWB-M) 302NR9301_(30/35 ppm
DK-5140 (30/35 ppm models)
models)
9 Drum PWB C (DRPWB-C) DK-5160 (40 ppm models)
302NT9301_(40 ppm models)
10 Drum PWB Y (DRPWB-Y)
302NR9412_(30/35 ppm
PARTS PWB ASSY DRUM
11 Drum relay PWB (DRCPWB) models)
CONNECT SP
302NT9402_(40 ppm models)
DV-5140(K) 302NR9302_(30 ppm models)
12 Developer PWB K(DLPPWB-K) DV-5150(K) 302NS9301_(35 ppm models)
DV-5160(K) 302NT9302_(40 ppm models)
DV-5140(M) 302NR9304_(30 ppm models)
13 Developer PWB M(DLPPWB-M) DV-5150(M) 302NS9303_(35 ppm models)
DV-5160(M) 302NT9304_(40 ppm models)
DV-5140(C) 302NR9305_(30 ppm models)
14 Developer PWB C(DLPPWB-C) DV-5150(C) 302NS9304_(35 ppm models)
DV-5160(C) 302NT9305_(40 ppm models)
DV-5140(Y) 302NR9303_(30 ppm models)
15 Developer PWB Y(DLPPWB-Y) DV-5150(Y) 302NS9302_(35 ppm models)
DV-5160(Y) 302NT9303_(40 ppm models)
Toner container relay PWB PARTS PWB ASSY CON-
16 302NR9410_
(TCONCPWB) TAINER CONN SP

3-14
 2NR/2NS/2NT-2

No. Name used in service manual Name used in parts list Part.No.
302NR9413_(30 ppm models)
17 Eject PWB (EJPWB) PARTS PWB ASSY EXIT SP 302NS9405_(35/40 ppm
models)
PARTS PWB ASSY CASSETTE
18 Cassette PWB (CPWB) 302KV9434_
SP
19 APC PWB K(APCPWB-K) 302NR9307_(30/35 ppm
LK-5140A
models)
20 APC PWB M(APCPWB-M) LK-5160A
302NT9307_(40 ppm models)
21 APC PWB C(APCPWB-C) 302NR9308_(30/35 ppm
LK-5140B
models)
22 APC PWB Y(APCPWB-Y) LK-5160B
302NT9308_(40 ppm models)
23 PD PWB K(PDPWB-K) 302NR9307_(30/35 ppm
LK-5140A
models)302NT9307_(40 ppm
24 PD PWB M(PDPWB-M) LK-5160A
models)
25 PD PWB C(PDPWB-C) 302NR9308_(30/35 ppm
LK-5140B
models)
26 PD PWB Y(PDPWB-Y) LK-5160B
302NT9308_(40 ppm models)
P.W.BOARD ASSY FUSER
27 Zener PWB (FZEPWB) 302HN0124_
ZENER
28 Drum heater PWB K (DHTK)*3
29 Drum heater PWB M (DHTM)*3 PARTS PWB ASSY DRUM
302NT9409_
30 Drum heater PWB C (DHTC)*3 HEATER SP

31 Drum heater PWB Y (DHTY)*3

*1: for 30/35 ppm models only
*2: for 40 ppm model only
*3: for 40 ppm/ Asian models (except China)

3-15
 2NR/2NS/2NT-1

(4-2) Sensors and Switches

Toner container
(K,M,C,Y)

Primary transfer unit

Drum unit
(K,M,C,Y)

21 19
7
23
4
12
3
1 13 18
24 2 Developer unit
(K,M,C,Y)
22 17
6 26 8
5 25 14 27
9
10
11

16
15
Laser scanner unit
(KM,CY)

Fuser unit
(30 ppm model)
16 20
Machine Right
Machine Inner 15
Machine Left

Fuser unit 20
(35/40 ppm model)
Figure 3-19

1. Paper sensor 1 (PS1) ........................... Detecting the level of the remaining paper inside the cassette
2. Paper sensor 2 (PS2) ........................... Detecting the level of the remaining paper inside the cassette

3-16
 2NR/2NS/2NT

3. Lift sensor (LS)...................................... Detecting the upper limit when lifting the bottom plate inside the
cassette
4. Registration sensor (RS)....................... Controlling the timing to start the secondary paper feeding
5. MP paper sensor (MPPS) ..................... Detecting the presense of the paper on the MP tray
6. MP conveying sensor (MPPCS) ........... Detecting the paper jam at the MP conveying section
7. Eject sensor (ES) .................................. Detecting the paper jam at the fuser section
8. Toner sensor K (TS-K) .......................... Detecting the toner amount inside developer unit K
9. Toner sensor M (TS-M) ......................... Detecting the toner amount inside developer unit M
10. Toner sensor C (TS-C).......................... Detecting the toner amount inside developer unit C
11. Toner sensor Y (TS-Y) .......................... Detecting the toner amount inside developer unit Y
12. ID sensor 1 (IDS1) ................................ Measuring the toner density at the color adjustment (calibration)
13. ID sensor 2 (IDS2) ................................ Measuring the toner density at the color adjustment (calibration)
14. Waste toner sensor (WTS).................... Detecting the waste toner amount inside the waste toner box
15. Fuser thermistor 1 (FTH1) .................... Detecting the temperature at the heat roller (edge)
16. Fuser thermistor 2 (FTH2) .................... Detecting the temperature at the heat roller (center)
17. Power switch (PSSW)........................... Turning on and off the Main/Engine PWB, the engine relay PWB
and the operation panel PWB, etc.
18. Interlock switch (ILSW) ......................... Shutting off the 24V power supply line and resetting when the
inner tray or the rear cover is opened
19. Paper full sensor (PFS)......................... Detecting the paper-full on the upper tray
20. Press-release sensor (PRS) ................. Detecting the mode of the fuser pressure
21. Duplex sensor (DUPCS)*1.................... Detecting the paper jam at the duplex section
22. Cassette size switch (CSSW) ............... Detecting the paper size setting by the size dial and detecting the
presence of cassette
23. Tray switch (ITSW)................................ Detecting the opening and closing of the upper tray
24. Toner container switch (TCSW) ............ Detecting the presence of the toner container
25. Waste toner cover sensor (WTCS) ....... Detecting the opening and closing of the waste toner cover
26. Outer temperature sensor (OTEMS)..... Detecting the temperature and humidity outside the main unit
27. Internal temperature sensor (ITEMS) ... Detecting the internal temperature

*1: for 35/40 ppm models only

Part name table for the switches and the sensors

No. Name used in service manual Name used in parts list Part.No.
1 Paper sensor 1 (PS1)
2 Paper sensor 2 (PS2) PWB ASSY CASSETTE SP 302KV9434_
3 Lift sensor (LS)
4 Registration sensor (RS) PARTS SENSOR OPT. SP 303NW9404_
5 MP paper sensor (MPPS) PARTS SENSOR OPT. SP 302P79401_
6 MP conveying sensor (MPPCS) PARTS SENSOR OPT. SP 302P79401_
302NR9413_(30 ppm models)
7 Eject sensor (ES) PARTS PWB ASSY EXIT SP 302NS9405_(35/40 ppm
models)
DV-5140(K) 302NR9302_(30 ppm models)
8 Toner sensor K(TS-K) DV-5150(K) 302NS9301_(35 ppm models)
DV-5160(K) 302NT9302_(40 ppm models)
DV-5140(M) 302NR9304_(30 ppm models)
9 Toner sensor M(TS-M) DV-5150(M) 302NS9303_(35 ppm models)
DV-5160(M) 302NT9304_(40 ppm models)

3-17
 2NR/2NS/2NT-2

No. Name used in service manual Name used in parts list Part.No.
DV-5140(C) 302NR9305_(30 ppm models)
10 Toner sensor C(TS-C) DV-5150(C) 302NS9304_(35 ppm models)
DV-5160(C) 302NT9305_(40 ppm models)
DV-5140(Y) 302NR9303_(30 ppm models)
11 Toner sensor Y(TS-Y) DV-5150(Y) 302NS9302_(35 ppm models)
DV-5160(Y) 302NT9303_(40 ppm models)
12 ID sensor 1 (IDS1) PARTS ID SENSOR SP 302NR9402_
13 ID sensor 2 (IDS2) PARTS ID SENSOR SP 302NR9402_
PARTS TONER FULL DETECT
14 Waste toner sensor (WTS) 302NR9407_
ASSY SP
15 Fuser thermistor 1 (FTH1) 120V: FK-5142 302NR9311_(30 ppm models)
120V: FK-5162 302NT9311_(35 ppm models)
120V: FK-5172 302NT9318_(40 ppm models)
16 Fuser thermistor 2 (FTH2) 230V: FK-5140 302NR9309_(30 ppm models)
230V: FK-5160 302NT9309_(35 ppm models)
230V: FK-5170 302NT9316_(40 ppm models)
17 Power switch (PSSW) PARTS PWB ASSY EXIT SP 302NR9416_
18 Interlock switch (ILSW) SW.MICRO 7SM010104+++H01
302NR9413_(30 ppm models)
19 Paper full sensor (PFS) PARTS PWB ASSY EXIT SP 302NS9405_(35/40 ppm
models)
120V: FK-5142 302NR9311_(30 ppm models)
120V: FK-5162 302NT9311_(35 ppm models)
120V: FK-5172 302NT9318_(40 ppm models)
20 Press-release sensor (PRS)
230V: FK-5140 302NR9309_(30 ppm models)
230V: FK-5160 302NT9309_(35 ppm models)
230V: FK-5170 302NT9316_(40 ppm models)
21 Duplex sensor (DUPCS)*1 SENSOR OPT. 7NXSG2A241++H01
22 Cassette size switch (CSSW) SWITCH SIZE 302HN4418_
23 Tray switch (ITSW) SW.PUSH 7SP01000004+H01
24 Toner container switch (TCSW) SW.PUSH 7SP01000004+H01
Waste toner cover sensor
25 PARTS SENSOR OPT. SP 302P79401_
(WTCS)
Outer temperature sensor PARTS PWB ASSY THERMIS-
26 302M29413_
(OTEMS) TOR SP
302NR9307_(30/35 ppm
Internal temperature sensor LK-5140A
27 models)
(ITEMS) LK-5160A
302NT9307_(40 ppm models)
*1: for 35/40 ppm models only

3-18
 2NR/2NS/2NT-1

(4-3) Motors
Toner container
(K,M,C,Y)

Primary transfer unit

22

8
16
Drum unit
6 19 (K,M,C,Y)

10
11 9 7
12 13
1
3
5

21 2 15 Developer unit
(K,M,C,Y)
18
20
4

17

13
Laser scanner unit
(KM,CY) 14

Machine Right
Machine Inner
Fuser unit
Machine Left

Figure 3-20
1. Paper conveying and
developer motor (PCDVM).................... Driving the paper feeding and conveying systems and developer
unit K
2. Drum motor 1 (DRM1) .......................... Driving drum unit K and M
3. Drum motor 2 (DRM2) .......................... Driving drum unit C and Y
4. Lift motor (LM)....................................... Operating the bottom plate inside the cassette
5. Developer motor (DEVM)...................... Driving developer unit Y, M and C
6. Fuser motor (FUM) ............................... Driving the transfer and fuser sections
7. Primary transfer motor (TRM) ............... Driving the primary transfer unit
8. Duplex eject motor (DUEM) .................. Driving the duplex conveying and eject section

3-19
 2NR/2NS/2NT-2

9. Toner motor K (TM-K) ........................... Supplying the toner to developer unit K

10. Toner motor M (TM-M) .......................... Supplying the toner to developer unit M
11. Toner motor C (TM-C)........................... Supplying the toner to developer unit C
12. Toner motor Y (TM-K) ........................... Supplying the toner to developer unit Y
13. Polygon motor KM (PM-KM) ................. Driving polygon mirror KM
14. Polygon motor CY (PM-CY).................. Driving polygon mirror CY
15. LSU cleaning motor (LSUCM) .............. Driving the LSU glass cleaning system
16. Container fan motor (CFM) ................... Cooling the developer unit
17. LSU fan motor 1 (LSUFM1) .................. Cooling LSU-KM
18. LSU fan motor 2 (LSUFM2) .................. Cooling LSU-CY
19. Eject fan motor (EJFM) ......................... Diffusing the steam
20. Power source fan motor (PSFM) .......... Cooling the power source unit
21. Transfer fan motor (TRFM) ................... Cooling the primary transfer unit
22. Duplex fan motor (DUFM)*1 ................. Cooling the duplex paper when ejecting
*1: for 40 ppm models only

Part name table for the motors

No. Name used in service manual Name used in parts list Part.No.
Paper conveying and developer
1 PARTS MOTOR-BL W10 SP 302LC9429_
motor (PCDVM)
2 Drum motor 1 (DRM1) 302NR9313_(30 ppm models)
DR-5140: 30 ppm models
302NT9312_(35/40 ppm mod-
3 Drum motor 2 (DRM2) DR-5150: 35/40 ppm models
els)
4 Lift motor (LM) PARTS DC MOTOR ASSY SP 302NR9409_
302NR9313_(30 ppm models)
DR-5140: 30 ppm models
5 Developer motor (DEVM) 302NT9312_(35/40 ppm mod-
DR-5150: 35/40 ppm models
els)
PARTS MOTOR-PM MOVING 303NB9404_(30/35 ppm
6 Fuser motor (FUM) SP models)
PARTS MOTOR-PM FUSER SP 302NT9414_(40 ppm models)
7 Primary transfer motor (TRM) PARTS MOTOR-BL W20 SP 302K99432_
8 Duplex eject motor (DUEM) PARTS MOTOR EJECT SP 302P79406_
9 Toner motor K (TM-K) PARTS DC MOTOR ASSY SP 302NR9408_
10 Toner motor M (TM-M) PARTS DC MOTOR ASSY SP 302NR9408_
11 Toner motor C (TM-C) PARTS DC MOTOR ASSY SP 302NR9408_
12 Toner motor Y (TM-Y) PARTS DC MOTOR ASSY SP 302NR9408_
302NR9307_(30/35 ppm
LK-5140A
13 Polygon motor KM (PM-KM) models)
LK-5160A 302NT9307_(40 ppm models)
302NR9308_(30/35 ppm
LK-5140B
14 Polygon motor CY (PM-CY) models)
LK-5160B 302NT9308_(40 ppm models)
15 LSU cleaning motor (LSUCM) PARTS DC MOTOR ASSY SP 302NG9405_
PARTS,FAN COOLING CON-
16 Container fan motor (CFM) 302FZ9442_
VEYING SP

3-20
 2NR/2NS/2NT-1

No. Name used in service manual Name used in parts list Part.No.
17 LSU fan motor 1 (LSUFM1) PARTS FAN MOTOR SP 302NG9422_
18 LSU fan motor 2 (LSUFM2) PARTS FAN MOTOR SP 302NG9422_
PARTS,FAN COOLING CON-
19 Eject fan motor (EJFM) 302FZ9442_
VEYING SP
PARTS,FAN COOLING CON-
20 Power source fan motor (PSFM) 302FZ9442_
VEYING SP
21 Transfer fan motor (TRFM) FAN MOTOR 302HN4421_
22 Duplex fan motor (DUFM)*1 FAN MOTOR 302HN4421_
*1: for 40 ppm models only

3-21
 2NR/2NS/2NT

(4-4) Clutches and Solenoids and other parts

Toner container
(K,M,C,Y)

Primary transfer unit

Drum unit
(K,M,C,Y)

5 3 8
9
1 10
4
11
6
2
Developer unit
7 (K,M,C,Y)

14
12
Laser scanner unit
(KM,CY)

Fuser unit
Machine Right (30 ppm model)
Machine Inner 14
Machine Left
15
12

Fuser unit
(35/40 ppm model) 13

Figure 3-21

3-22
 2NR/2NS/2NT-2

1. Paper feed clutch (PFCL) ..................... Controlling the primary paper feeding from the cassette
2. MP conveying clutch (MPFCL) ............. Controlling the drive for the MP conveying section
3. Registration clutch (RCL)...................... Controlling the drive for the secondary paper feeding
4. Middle clutch (MIDCL) .......................... Controlling the drive for the paper conveying section
5. Developer clutch (DEVCL).................... Controlling the drive to developer unit K
6. Duplex clutch (DUCL)*1........................ Controlling the drive to duplex section
7. MP solenoid (MPSOL) .......................... Controlling the MP bottom plate
8. Cleaning lamp K (CL-K) ........................ Removing the remaining electric charge on the drum (Black)
9. Cleaning lamp M (CL-M)....................... Removing the remaining electric charge on the drum (Magenta)
10. Cleaning lamp C (CL-C)........................ Removing the remaining electric charge on the drum (Cyan)
11. Cleaning lamp Y (CL-Y) ........................ Removing the remaining electric charge on the drum (Yellow)
12. Fuser heater 1 (FUH1).......................... Heating the heat roller
13. Fuser heater 2 (FUH2)*1 ...................... Heating the heat roller
14. Fuser thermostat 1 (FUTS1) ................. Shutting off the power supply to the fuser heater when the abnor-
mal high temperature on the heat roller is detected
15. Fuser thermostat 2 (FUTS2)*1.............. Shutting off the power supply to the fuser heater when the abnor-
mal high temperature on the heat roller is detected

Part name table for the clutches, the solenoids and the others

No. Name used in service manual Name used in parts list Part.No.
1 Paper feed clutch (PFCL) PARTS CLUTCH 35 Z35R SP 302NR9401_
2 MP conveying clutch (MPFCL) CLUTCH 50 Z35R 302KV4404_
3 Registration clutch (RCL) PARTS CLUTCH 35 Z35R SP 302NR9401_
4 Middle clutch (MIDCL) PARTS CLUTCH 35 Z35R SP 302NR9401_
5 Developer clutch (DEVCL) PARTS CLUTCH 35 Z35R SP 302NR9401_
6 Duplex clutch (DUCL)*1 PARTS CLUTCH 35 Z35R SP 302NR9401_
7 MP solenoid (MPSOL) SOLENOID TONER 302GR4415_
8 Cleaning lamp K (CL-K)
9 Cleaning lamp M(CL-M) 302NR9301_(30/35 ppm
DK-5140 (30/35 ppm models)
models)
10 Cleaning lamp C(CL-C) DK-5160 (40 ppm models)
302NT9301_(40 ppm models)
11 Cleaning lamp Y(CL-Y)
120V: FK-5142 302NR9311_(30 ppm models)
120V: FK-5162 302NT9311_(35 ppm models)
120V: FK-5172 302NT9318_(40 ppm models)
12 Fuser heater 1 (FH1)
230V: FK-5140 302NR9309_(30 ppm models)
230V: FK-5160 302NT9309_(35 ppm models)
230V: FK-5170 302NT9316_(40 ppm models)
120V: FK-5162 302NT9311_(35 ppm models)
120V: FK-5172 302NT9318_(40 ppm models)
13 Fuser heater 2 (FH2) *1
230V: FK-5160 302NT9309_(35 ppm models)
230V: FK-5170 302NT9316_(40 ppm models)
120V: FK-5142 302NR9311_(30 ppm models)
120V: FK-5162 302NT9311_(35 ppm models)
120V: FK-5172 302NT9318_(40 ppm models)
14 Fuser thermostat 1 (FUTS1)
230V: FK-5140 302NR9309_(30 ppm models)
230V: FK-5160 302NT9309_(35 ppm models)
230V: FK-5170 302NT9316_(40 ppm models)

3-23
 2NR/2NS/2NT-2

No. Name used in service manual Name used in parts list Part.No.
120V: FK-5162 302NT9311_(35 ppm models)
120V: FK-5172 302NT9318_(40 ppm models)
15 Fuser thermostat 2 (FUTS2) *1
230V: FK-5160 302NT9309_(35 ppm models)
230V: FK-5170 302NT9316_(40 ppm models)
*1: for 35/40 ppm models only

3-24
 2NR/2NS/2NT

(4-5) Paper feeder (Optinal unit)

10 9 4

11 5
1 2,3
8

Figure 3-22

1. PF main PWB (PFMPWB) .................... Interfacing to the main unit and controlling the entire paper feeder
2. PF paper sensor 1(PFPS1)................... Detecting the level of the remaining paper inside the cassette
3. PF paper sensor 2(PFPS2)................... Detecting the level of the remaining paper inside the cassette
4. PF lift sensor (PFLS)............................. Detecting the upper limit when lifting the bottom plate inside the
cassette
5. PF paper feed sensor (PFFS) ............... Detecting the paper jam at the paper feeder
6. PF cassette size switch (PFCSSW)...... Detecting the paper size setting by the size dial
7. PF rear cover switch (PFRCSW) .......... Consisting of the safety circuit when opening and closing the PF
rear cover
8. PF paper feed motor (PFPFM) ............. Driving the paper feeding system
9. PF lift motor (PFLM).............................. Operating the bottom plate inside the cassette
10. PF paper feed clutch(PFPFCL)............. Controlling the timing for the paper feeding
11. PF conveying clutch(PFPCCL) ............. Controlling the paper conveying

3-25
 2NR/2NS/2NT

Part name table

No. Name used in service manual Name used in parts list Part.No.
1 PF main PWB (PFMPWB)
2 PF paper sensor 1 (PFPS1) PARTS PWB ASSY PF MAIN
303PK9401_
3 PF paper sensor 2 (PFPS2) SP

4 PF lift sensor (PFLS)

5 PF paper feed sensor (PFFS) PARTS SENSOR OPT. SP 303NW9406_
PF cassette size switch (PFC-
6 SWITCH SIZE 302HN4418_
SSW)
7 PF rear cover switch (PFRCSW) SW.PUSH 7SP01000004+H01
8 PF paper feed motor (PFPFM)
9 PF lift motor (PFLM)
PARTS DRIVE UNIT SP 303PK9402_
10 PF paper feed clutch(PFPFCL)
11 PF conveying clutch (PFPCCL)

3-26
 2NR/2NS/2NT

(5) Drive unit

(5-1) Wire connection

8 9 10 11
6

5 2 3

1
12
13
4
14

15 16
17

Figure 3-23

1. Developer motor 10. Toner motor (C)

2. Drum motor 1 11. Toner motor (Y)
3. Drum motor 2 12. Developer clutch
4. Conveying developer motor 13. Registration clutch
5. Primary transfer motor 14. Middle clutch
6. Fuser motor 15. Duplex clutch*1
7. Duplex eject motor 16. Paper feed clutch
8. Toner motor (K) 17. MP conveying clutch
9. Toner motor (M)

*1: for 35/40 ppm models only

3-27
 2NR/2NS/2NT

(5-2) Drive system for the paper conveying

30 ppm models

DU conveying roller

Eject roller

Duplex eject motor Heat roller

Secondary transfer roller

Primary transfer belt

Fuser motor
Front registration
roller

Primary Middle roller

transfer motor

Developer Paper feed roller

clutch

Registration MP conveying
clutch roller

MP conveying
Middle clutch roller MP conveying
roller

Paper conveying and

developer motor

MP pape
feed rolle
Paper feed clutch

MP conveying clutch

Figure 3-24

3-28
 2NR/2NS/2NT

35/40 ppm models

Upper eject roller

DU conveying roller
Eject roller

Duplex eject motor Heat roller

Secondary transfer roller

Primary transfer belt

Fuser motor
Front registration
roller

Primary Middle roller

transfer motor

Developer Paper feed roller

clutch

Registration MP conveying
clutch roller

MP conveying
roller MP conveying
Middle clutch roller

Duplex clutch

MP paper
Paper conveying and feed roller
developer motor

Paper feed clutch

MP conveying clutch

Figure 3-25

3-29
 2NR/2NS/2NT

(5-3) Unit Design

Figure 3-26

1. Paper conveying and Developer K drive 2. Main drive motor section

section 3. Toner motor section

3-30
 2NR/2NS/2NT

1. Paper conveying and Developer

K drive section

2
A
3 B

1
4

C
6
F

5 D
7
E

Figure 3-27

1. Paper conveying and developer motor 5. Duplex clutch*1

2. Developer clutch 6. Paper feed clutch
3. Registration clutch 7. MP conveying clutch
4. Middle clutch

*1: for 35/40 ppm models only

A. Joint gear (Developer unit K: Clutch 2)

B. Joint gear (Registration roller: Clutch 3)
C. Joint gear (Middle roller: Clutch 4)
D. Joint coupling (Paper feed roller: Clutch 5)
E. Joint gear (MP conveying roller: Clutch 6)
F. Joint gear (DU conveying roller: Clutch 4) for 30 ppm models
Joint gear (DU conveying roller: Clutch 5) for 35/40 ppm models

3-31
 2NR/2NS/2NT

A
B

C D
F

Figure 3-28

Name used in service manual Name used in parts list Part.No.

302NR9426_(30 ppm models)
Paper conveying drive unit PARTS FEED DRIVE ASSY SP
302NT9408_(35/40 ppm models)

3-32
 2NR/2NS/2NT

2. Main drive motor section

2 3

H G F E

D C B A

Figure 3-29 Main drive motor unit

1. Developer motor (Driving developer unit C, M and Y)

2. Drum motor 1 (Driving drum unit K and M)
3. Drum motor 2 (Driving drum unit C and Y)

A. Developer drive coupling K (Driving developer unit K)

B. Developer drive coupling M (Driving developer unit M)
C. Developer drive coupling C (Driving developer unit C)
D. Developer drive coupling Y (Driving developer unit Y)
E. Drum drive coupling K (Driving drum unit K)
F. Drum drive coupling M (Driving drum unit M)
G. Drum drive coupling C (Driving drum unit C)
H. Drum drive coupling Y (Driving drum unit Y)

3-33
 2NR/2NS/2NT-1

E F G H

A B C D

Figure 3-30

Name used in service manual Name used in parts list Part.No.

DR-5140 302NR9313_(30 ppm models)
Main drive motor unit DR-5150 302NT9312_(35 ppm models)
DR-5160 302NT9321_(40 ppm models)

3-34
 2NR/2NS/2NT

3. Toner motor section

D C B A

E
4 3 2 1

Figure 3-31

1. Toner motor K (Driving toner container K)

2. Toner motor M (Driving toner container M)
3. Toner motor C (Driving toner container C)
4. Toner motor Y (Driving toner container Y)

A. Container drive coupling K (Driving toner container K)

B. Container drive coupling M (Driving toner container M)
C. Container drive coupling C (Driving toner container C)
D. Container drive coupling Y (Driving toner container Y)
E. Transfer cleaning drive coupling (Primary transfer cleaning drive)

3-35
 2NR/2NS/2NT

A B C D

Figure 3-32

3-36
 2NR/2NS/2NT

3-3 Paper feed and conveying section

The paper feed and conveying section consists of the cassette paper feed section and the MP tray paper
feed section, and the paper conveying section conveying the fed paper to the transfer and separat

(1) Cassette paper feed section

The cassette can load 500 sheets of plain paper (80g/m2), and forwards the paper by rotating the pickup
roller and conveys the paper to the paper conveying section by rotating the paper feed roller.

[Components parts] 8 11 7 6 2 3 1 4 5
1. Paper feed roller
2. Pickup roller
3. Paper feed holder
4. Retard roller
5. Retard holder
6. Separation pad
7. Bottom plate
8. Paper width guides
9. Paper length guide
10. Cassette base
11. Actuator
(Paper sensor 1, 2) 10

Figure 3-33

11
7
1
8

10

8
2 4

Figure 3-34

3-37
 2NR/2NS/2NT

[Control block diagram]

ECPWB
YC15-1 FEMOTREV 6
YC15-2 FEDMTRDYN 5
FEDMTCLK PFM
YC15-3 4
YC15-4 FEDMTREMN 3
FEDCLDRVN 2 PFCL
YC15-13

YC25-1 LIFTMTB 2
LIFTMTA LM
YC25-2 1

LIFTSEN 2
YC8-4 PS1
YC8-3 PAPVOL1 3 PS2
PAPVOL2 LS
YC8-2 4
CPWB

Figure 3-35

3-38
 2NR/2NS/2NT

(2) MP tray paper feed section

The MP tray can load 100 sheets of plain paper (80g/m2). The paper on the MP tray is fed by rotating the
MP paper feed roller and operating the MP bottom plate according to the MP solenoid. Multi-feeding is pre-
vented by the effect of the MP separation pad.

[Components parts] 10
1. MP paper feed roller
2. MP separation pad 8 7 11 1 5
3. MP bottom plate
4. MP separation pad
5. MP conveying roller
6. MP conveying pulley
7. MP paper width guides
8. MP base
9. MP cover
10. MP tray
11. Actuator 9
(MP paper sensor ) 3

4 2 6
Figure 3-36

7 3 12

10 8 4 11 7 9

Figure 3-37

3-39
 2NR/2NS/2NT

[Control block diagram]

ECPWB
6 FEMOTREV YC15-1
FEDMTRDYN YC15-2
PFM 5 FEDMTCLK
4 YC15-3
3 FEDMTREMN
T YC15-4

MPSOL MPFSOLDRVN YC16-2

MPFPAP YC6-3
MPPS

Figure 3-38

3-40
 2NR/2NS/2NT

(3) Paper conveying section

The paper conveying section conveys paper to the transfer and separation section when the paper is fed
from the cassette or the MP tray, or re-fed in the duplex print. The fed paper is conveyed to where it turns
the registration sensor on by the middle roller or the MP conveying roller, and then, conveyed to the trans-
fer and separation section by the registration front and rear rollers.

[Components parts] 7 8
1. MP conveying roller 11
2. MP conveying pulley
3. Upper MP conveying guide
4. Lower MP conveying guide
5. Middle roller 3 1
1
6. Middle pulley 1
7. Front registration roller
8. Rear registration roller
9. MP conveying sensor 5 6
10. Actuator
(MP conveying sensor)
2 4 2 2
11. Registration sensor 9 10

Figure 3-39

7
8
11
6
5

1 10
2
3

9
2
2

2
2

4
Figure 3-40

3-41
 2NR/2NS/2NT

[Control block diagram]

MEPWB

REGPAP
YC12-2 RS
YC21-1 REGCLDRVN RCL

ECPWB
YC15-9 MIDCLDRVN MIDCL
YC15-1 FEMOTREV 6
YC15-2 FEDMTRDYN 5
FEDMTCLK PFM
YC15-3 4
YC15-4 FEDMTREMN 3
YC15-11 MPFCLDRVN MPFCL

YC6-6 MPFJAM MPPCS

Figure 3-41

3-42
 2NR/2NS/2NT

3-4 Optical section

The optical section consists of the laser scanner section to write the image.

(1) Laser scanner unit

The charged drum surface is scanned by the laser emitted from the laser scanner units. The laser reflects
to the polygon mirrors by rotating the polygon motor so that the laser scans horizontally to the image. The
laser scanner unit has some lenses and mirrors, that adjust the diameter of the laser to focus the laser to
the drum surface. Also, the LSU cleaning motor operates to automatically clean the LSU glass.

[Components parts]
1. Polygon motor
2. Polygon mirror
3. fθ lens A
4. fθ lens B
5. Mirror A
6. Mirror B 9
9
7. Mirror C
8. LSU glass
9. Spiral 5 4 8 3 2 3 8 4 5

6 7 1 7 6

Figure 3-42

3-43
 2NR/2NS/2NT

8 9
9 4
8
3 5
2
9
8 5 3 1 6
4
7
9 4
8
2 3 5
7
5 3 1
4 6
7

7
6

Figure 3-43

3-44
 PDYN YC1-12
YC2017-7
VREFY
YC2017-11 YC1-2 PDYN
VDOY1P YC2-3

PD
YC2017-13 YC1-7

Photo
VDOY1N

sensor
PWB-Y
YC2017-15 YC1-6
OUTPEYN
YC2017-19 YC1-3
SAMPLEY1N
YC2017-21 YC1-5

diode
Laser
VDOY2P YC1-10

APCPWB-Y
YC2017-23
VDOY2N

Laser light
YC2017-25 YC1-9
YC2017-27 SAMPLEY2N
YC1-4
POLREYN1
YC2017-1
[Control block diagram]

POLRDYN1
YC2017-3
POLCLK1

PM-CY
YC2017-5

13 2 13
LSUTHERMC
YC2017-22 PDCN YC1-13
YC2017-6 YC1-12

Laser scanner unit CY

VREFC
YC2017-10 YC1-2
VDOC1P
YC2017-12 YC1-10
VDOC1N

diode
YC1-9

Laser
YC2017-14
OUTPECN YC1-3

Laser light
YC2017-18 SAMPLEC1N PDCN
YC2017-20 YC1-5

PD
YC2-3

Photo
VDOC2P LSUTHRMC

APCPWB-C
YC1-7

sensor
YC2017-24

PWB-C
VDOC2N YC1-6 YC2-2
YC2017-26
SAMPLEC2N YC1-4
YC2017-28
Laser scanner unit KM

PDMN
YC2016-7 YC1-12

3-45
MEPWB
VREFM
YC2016-11 YC1-2
VDOM1P PDYN

Figure 3-44
YC2016-13 YC1-7 YC2-3

PD
VDOM1N

Photo
YC2016-15 YC1-6

sensor
PWB-Y
PWB-M
OUTPEMN
YC2016-19 YC1-3
SAMPLEM1N
YC2016-21 YC1-5

diode
VDOM2P

Laser
YC2016-23 YC1-10

APCPWB-M
VDOM2N

Laser light
YC2016-25 YC1-9
YC2016-27 SAMPLEM2N YC1-4
POLREMN1
YC2016-1
POLRDYN1
YC2016-3
POLCLK1 PM-CY
PM-KM
YC2016-5

13 2 1 3
LSUTHERMK YC1-13
YC2016-22 PDKN
YC2016-6 YC1-12
VREFK
YC2016-10 YC1-2
VDOK1P
YC2016-12 YC1-10

diode
Laser
VDOK1N
YC2016-14 YC1-9
OUTPEKN
Laser light

YC2016-18 YC1-3
SAMPLEK1N PDCN
YC2016-20 YC1-5 YC2-3
PD

APCPWB-K
CM

VDOK2P
LSU

Photo

YC2016-24 YC1-7
sensor
PWB-C
PWB-K

YC2016-26 VDOK2N
YC1-6
SAMPLEK2N YC3
ITEMS

YC2016-28 YC1-4
YC26-1,2 LSUMTA, B
2NR/2NS/2NT
 2NR/2NS/2NT

3-5 Developer section

(1) Developer unit
The developer section consists of the magnet roller forming the magnetic brush, the sleeve roller forming
the thin layer by replacing the toner, the developer blade, and the developer screw mixing up the toner.
The toner density is adjusted by impressing the bias to the magnet roller and the sleeve roller. The toner
amount inside the developer unit is detected by the toner sensor.

[Components parts] 6 7 2 1
1. Sleeve roller
2. Magnet roller
3. Developer screw A
4. Developer screw B
5. Developer blade
6. Developer case
7. Developer top cover
8. Developer base 5
9. Toner sensor
4 3

9
8

Figure 3-45

2 1

3
9 Drum
6

Figure 3-46

3-46
 2NR/2NS/2NT

[Control block diagram]

6 MOTREV
YC12-1
5 DLPCMTRDN YC12-2
DEVM 4 DLPCMTCLK ECPWB
YC12-3
3 DLPCMTREMN YC12-4

DEVCL DLPKCLDRVN
YC15-7

Drum

Drum
Drum
Magnet bias M

Magnet bias C

Magnet bias Y
Magnet bias K

Drum
Sleeve bias M

Sleeve bias C
Sleeve bias K

Sleeve bias Y

Developer
unit K
Developer
unit M
Developer
HVPWB Developer
YC101-3
YC101-4
YC101-5
YC101-7
YC101-9

unit C
unit Y

TS-Y TS-C TC-M TC-K

DACSCLK
DACSLD1
DACSLD2

DACSDI
HVCLK

DEVPWB-Y DEVPWB-C DEVPWB-M DEVPWB-K

YC7-3
YC7-4
YC7-5
YC7-7
YC7-9

TNSENM
YC8-3 TNSENC
YC9-3 TNSENY

TNSENK
YC6-5 DLPTH

MEPWB
YC7-3

YC6-3

YC15-5 TNSENC YC1-5

YC15-6 TNSENY YC1-6
YC15-7 TNSENK YC1-7
YC15-8 TNSENM YC1-8
YC15-10 DLPTHERM YC1-10
DRCPWB

Figure 3-47

3-47
 2NR/2NS/2NT

3-6 Drum section

The drum section consists of the drum, the charger roller unit, and the cleaning unit. The drum surface is
evenly charged to prepare forming the electrical latent image by emitting the laser.

(1) Charger roller unit

The charged roller with the electric charge contacts the drum surface and rotates to charge the drum
evenly.

[Components parts]
1. Drum
2. Charger roller
3. Charger cleaning roller
4. Charger case

(2) Cleaning unit

The remaining toner on the drum surface after transferring is removed by the cleaning blade, and collected
to the waste toner box by the drum screw. The cleaning lamp consists of the LED lamp, and it removes the
remaining electric charge on the drum before the main charge.

[Components parts] 1 6 8
5. Drum frame
6. Cleaning blade
7. Drum screw
8. Cleaning lamp

5
7

3 24
Figure 3-48

3-48
 2NR/2NS/2NT

1
6
7
8

Figure 3-49

3-49
 YC7-3 DACSLD1 YC101-3
YC7-4 DACSLD2 YC101-4 Main charger high-voltage K
YC7-5 DACSCLK YC101-5
DACSDI

3
DRM2 4
5
3
DRM1 4
5
YC7-7 YC101-7 Main charger high-voltage C

MEPWB
YC7-10 MISENS YC101-10
Main charger high-voltage M
Main charger

YC15-11
YC15-4
YC15-2
high-voltage Y
[Control block diagram]

HVPWB

PTSCL
PTSDA
DRMMT2REMN
DRMMT2CLK
DRMMT2RDYN
DRMTREMN
DRMMTCLK
DRMMTRDYN

ERASEDR
Charger roller
YC13-8
YC13-7
YC13-6
YC13-3
YC13-2
YC13-1

YC1-4
YC1-2

YC1-11
Charger roller

Drum unit Y
EECLK
YC5-2
YC5-3 ERASEYDR
ECPWB

YC5-4 EEDATA
DA0 ERASEYDR

3-50
YC5-7

CL-Y

DRPWB-Y
Charger roller

YC5-8 DA1

Figure 3-50
Drum
EECLK

Ground
YC4-2
YC4-3 ERASECDR
Charger roller

EEDATA

Drum
YC4-4
DA0 ERASECDR
YC4-7

CL-C

DRPWB-C
YC4-8 DA1

Ground

DRCPWB
YC3-2 EECLK
YC3-3 ERASEMDR
Drum

EEDATA Ground
YC3-4
DA0 ERASEMDR
YC3-7

CL-M

DRPWB-M
YC3-8 DA1
Drum unit K

Drum

YC2-2 EECLK
Drum unit C
Drum unit M

YC2-3 ERASEKDR
Ground

YC2-4 EEDATA ERASEKDR

DA0
CL-K
YC2-7

DRPWB-K
YC2-8 DA1
2NR/2NS/2NT
 2NR/2NS/2NT

3-7 Transfer and separation section

(1) Primary transfer section
The primary transfer section consists of the transfer cleaning unit, the transfer belt and four primary trans-
fer rollers facing each drum. When printing the color image, the toner image with a single color formed on
each drum is repeatedly transferred on the transfer belt by impressing the bias to the primary transfer roll-
ers facing each drum, and then the full color toner image is formed. Also, the ID sensor attached to the
main unit measures the toner density on the transfer belt.
The trasfer cleaning unit collects the remaining toner on the transfer belt after the secondary transferring,
and forwards it to the waste toner box as waste toner.

[Components parts]
1. Tension roller 10 1 7 2
2. Drive roller 9
3. Primary transfer roller K
4. Primary transfer roller M
5. Primary transfer roller C
6. Primary transfer roller Y
7. Transfer belt
8. Cleaning fur brush
9. Cleaning roller
10. Cleaning blade 11 8 3 4 5 6 12,13
11. Cleaning screw
12. ID sensor 1
13. ID sensor 2
Figure 3-51

3 12 2
7
4

5
13
6
1

10
9

8
11

Figure 3-52

3-51
 2NR/2NS/2NT

[Control block diagram]

30/35 ppm models

ECPWB
YC14-1 IMGCCW
YC14-2 IMGMTRDYN
IMGMTCLK TRM
YC14-3
YC14-4 IMGMTREMN

Transfer
MEPWB HVPWB cleaning bias
Primary transfer
YC7-3 DACSLD1 YC101-3 bias Y
YC7-4 DACSLD2 YC101-4
YC7-5 DACSCLK YC101-5 Primary transfer bias C
YC7-7 DACSDI YC101-7
HVREMN Primary transfer bias M
YC7-8 YC101-8
Primary transfer bias K

IDS1
LEDREFL
YC13-4 YC1-2
VOSL YC1-4
YC13-2
VOPL YC1-5
YC13-1

IDS2
YC14-4 LEDREFR YC1-2
YC14-2 VOSL YC1-4
VOPL YC1-5
YC14-1

Figure 3-53

3-52
 2NR/2NS/2NT

40 ppm models

ECPWB
YC14-1 IMGCCW
YC14-2 IMGMTRDYN
IMGMTCLK TRM
YC14-3
YC14-4 IMGMTREMN

Transfer
MEPWB HVPWB2
cleaning bias
Primary transfer
YC9-2 TIMCNT CN2-2 bias Y
YC9-3 TIYCNT CN2-3
YC9-4 HVREM CN2-4 Primary transfer bias C
YC9-5 CLCNT CN2-5
YC9-6 T1CCNT CN2-6
Primary transfer bias M
YC9-7 T2KCNT CN2-7 Primary transfer bias K

IDS1
LEDREFL
YC13-4 YC1-2
VOSL YC1-4
YC13-2
VOPL YC1-5
YC13-1

IDS2
YC14-4 LEDREFR YC1-2
YC14-2 VOSR YC1-4
YC14-1 VOPR YC1-5

Figure 3-54

3-53
 2NR/2NS/2NT

(2) Secondary transfer roller section

The secondary transfer roller section consists of the secondary transfer roller attached to the paper con-
veying unit, and the separation brush. The DC bias from the high-voltage PWB is impressed to the second-
ary transfer roller, and the toner image formed on the transfer belt is transfered to the paper by the
potential gap. After transferring, the paper is separated by self stripping and the electric charge on the
paper is removed by the separation brush contacting the ground.

[Components parts] 2 4
1. Secondary transfer roller
2. Primary transfer belt
3. Transfer front guide
4. Separation brush

1
3

Figure 3-55

3-54
 2NR/2NS/2NT

2 1 4 3

Figure 3-56
[Control block diagram]

Ground

MEPWB

HVREMN Secondary transfer bias

YC7-8 HVPWB
Secondary
transfer roller

Figure 3-57

3-55
 2NR/2NS/2NT

3-8 Fuser section

The paper from the transfer and separation section is pinched between the heat roller and the press roller.
The heat roller is heated by the fuser heater, and the paper is pressed by the press roller with the pressure
added by the pressure spring toward the heat roller, so toner is fused on the paper by that heat and pres-
sure.
The surface temperature of the heat roller is detected by the fuser thermistor and controlled by the Main/
Engine PWB. If the fuser section has abnormal temperature, the power supply line is shut off by switching
the fuser thermostat and the fuser heater is turned off forcedly.

(1) Fuser unit

13 12 11
[Components parts]
1. Heat roller
2. Fuser heater 1
3. Fuser heater 2 *2
4. Fuser thermostat 1
5. Fuser thermostat 2
6. user thermistor 1 7
7. Fuser thermistor 2 *1 9
8. Fuser thermistor 2 *2
9. Separation plate 6
10. Press roller
11. Actuator 2,3
(Eject sensor) 4,5
12. Fuser eject roller
13. Fuser eject pulley
14. Fuser front guide

*1: 30 ppm models 8 1 2 14 10

*2: 35/40 ppm models
Figure 3-58

30 ppm model 35/40 ppm model

9
9
13 13
11 11
12 12
6 6
10 10

4 7 1 2 4 8 5 1 2,3

Figure 3-59

3-56
 2NR/2NS/2NT

[Control block diagram]

30 ppm models

ECPWB
YC20-5 STFUSBN
1
YC20-6 STFUSAN
2
YC20-7 STFUSB FUM
3
YC20-8 STFUSA 4

EJPWB
MEPWB FTHERM2
YC2-7 FTH2
PDIRN
YC11-5 YC1-5 FTHERM1
YC2-5 FTH1
FTHERM1
YC11-2 YC1-2 PDIRN
YC2-3 EVSW

PSPWB
LIVE
YC102-3 FTS1

YC20-4 HEATREM1 YC105-2

ZCROSSN NEUTRAL FH1

YC20-2 YC105-4 YC102-1
Figure 3-60
35/40 ppm models
ECPWB
YC20-5 STFUSBN
1
YC20-6 STFUSAN
2
YC20-7 STFUSB FUM
3
YC20-8 STFUSA 4

MEPWB EJPWB
NCTHCOM
YC2-8
NCTHDET FTH2
PDIRN YC2-7
YC11-5 YC1-5
FTHERM1
FTHERM1 YC2-5 FTH1
YC11-2 YC1-2
PDIRN
YC2-3 ENVS

PSPWB
HEATREM1 NEUTRAL
YC20-4 YC105-2 YC102-5 FH2

YC20-5 HEATREM2 YC105-1 LIVE

YC102-3 FTS1 FTS2
ZCROSSN
YC20-2 YC105-4 NEUTRAL
YC102-1 FH1

Figure 3-61

3-57
 2NR/2NS/2NT

3-9 Eject and feedshift section

The eject and feedshift section consists of the paper path from the fuser section to the inner tray or the
duplex conveying section.

(1) Eject unit

30 ppm models
[Components parts] 1 5
1. Eject roller
2. Eject pulley
3. Lower eject roller
4. Lower eject pulley
5. Feedshift guide
6. Actuator
(Eject sensor)
7. Actuator
(Eject full sensor)

7 2 4 3 6

Figure 3-62

35/40 ppm models

[Components parts] 4 3 7
1. Eject roller
2. Eject pulley
3. Upper eject roller
4. Upper eject pulley
5. Lower eject roller
6. Lower eject pulley
7. Feedshift guide
8. Actuator
(Eject sensor)
9. Actuator
(Eject full sensor)

9
2 1

6 5 8
Figure 3-63

3-58
 2NR/2NS/2NT

30 ppm models

1
2
3
4
5

Figure 3-64

35/40 ppm models

3
4

7
2

6
6
5 9 8

Figure 3-65

3-59
 2NR/2NS/2NT

[Control block diagram]

30 ppm models

ECPWB
STDUPB1
YC20-1
YC20-2 STDUPB3
YC20-3 STDUPA3 DUEM
STDUPA1
YC20-4

MEPWB EJPWB

PDFULL PFS
YC11-6
FUSJAM
YC11-7

ES

Figure 3-66

35/40 ppm models

ECPWB
STDUPB1
YC20-1
YC20-2 STDUPB3
YC20-3 STDUPA3 DUEM
STDUPA1
YC20-4

MEPWB EJPWB

PDFULL PFS
YC11-6
FUSJAM
YC11-7

ES

Figure 3-67

3-60
 2NR/2NS/2NT

3-10 Duplex conveying section

(1) Duplex conveying unit
The duplex conveying section consists of the paper conveying path to forward the paper from the eject and
feedshift section in the duplex print to the paper conveying section.

[Components parts] 30 ppm model 35/40 ppm model

1. DU conveying roller L
2. DU conveying pulley L
3. DU conveying roller S
4. DU conveying pulley S 1 1
5. DU base 2 2
6. DU conveying guide
7. Actuator
(Duplex sensor)*1

*1: for 35/40 ppm models only

4 3 4 3

5 5
7
6 6

4 3 4 3

4 4
3 3

Figure 3-68

3-61
 2NR/2NS/2NT

30 ppm models

3
3
4

Figure 3-69

3-62
 2NR/2NS/2NT

35/40 ppm models

4
7

3
3
4

Figure 3-70

3-63
 2NR/2NS/2NT

[Control block diagram]

30 ppm models

ECPWB

YC15-9 MIDCLDRN MIDCL

MIDCL

YC15-1 MOTREV
6
YC15-2 FEDMTRDYN
5
YC15-3 FEDMTCLK PFM
4
YC15-4 FEDMTREMN
3

Figure 3-71

35/40 ppm models

ECPWB
YC7-1 DUPPAP MIDCL
DUPCS

YC15-1 MOTREV
6
YC15-2 FEDMTRDYN
5
YC15-3 FEDMTCLK PCDVM
4
YC15-4 FEDMTREMN
3
YC15-15 DUPCLDRN MIDCL
DUCL

Figure 3-72

3-64
 2NR/2NS/2NT

3-11 Optional paper feeder

(1) Paper feed section
The paper feeder is a mechanism that feeds paper from its cassette to the main unit. The cassette can
load 500 sheets of plain paper (80g/m2), and the paper is fed by the rotation of the pickup roller and paper
feed roller. The retard roller prevents the paper from multi-feeding by the effect of the torque limiter.

2 1
10 5 6

8
11
4
3
7
9

Figure 3-73

1. Paper feed roller 7. Bottom plate

2. Pickup roller 8. Bottom pad
3. Retard roller 9. Cassette base
4. Retard guide 10. Upper cover
5. Conveying roller 11. Actuator
6. Conveying pulley (PF paper sensor 1, 2)

3-65
 2NR/2NS/2NT

6
5
1
2
7

3
8

11

Figure 3-74

3-66
 2NR/2NS/2NT

[Control block diagram]

PFMPWB
YC1-3 OUT PFFS

YC7-1 LMOT+
LMOT- PFLM
YC7-2

FEEDCLN
YC9-3 PFPCL

TRANSCLN 1
YC9-1 PFPCCL
2

YC6-1 TMDIR 6
YC6-2 TMLOCK 5
4PFPFM
TMCLK PFM
YC6-3
YC6-4 #TMDRY 3

PFLS

PFPS1

PFPS2

Figure 3-75

3-67
 2NR/2NS/2NT

This page is intentionally left blank.

3-68
 2NR/2NS/2NT

4 Maintenance
4-1 Precautions for maintenance

(1) Precautions
Before disassembling the main unit, press the power switch to turn the power off. Before work, unplug the
power plug after confirming the operation panel is turned off.
Do not touch the PWB with finger directly. Take care not damage the PWB.
If ICs are mounted on the PWB, do not touch them by hand or something charged with electrostatic.
Make sure to release the hook before disconnecting the connector with the hook.
Take care not to pinch wires at work.
Use the original screws when reassembling the parts once disassembled.
Refer to the parts list if the kind and size f the screw is uncertain.

(2) Drum unit

Take care of the following when handling and storing the drum.
When taking out the drum unit from the main unit, take care the drum surface is not exposed to bright light-
ing like direct sunlight.
Store in the range of ambient temperature of -20 to 40 degree C and ambient humidity of 85% RH or less.
Avoid storing the drum unit where temperature and humidity rapidly change though within the specified
range.
Avoid the place where materials deteriorate the drum is floating.
Do not hit the drum surface with something else.
Do not touch the drum surface by finger or via gloves.
Clean the drum surface if touched by hand or oil adheres.

(3) Storage of the toner containers

Store the toner container in a cool dark place.
Avoid the direct sunlight and high humidity place.

(4) Screening of the toner container

Look at the screening film on the brand protection seal affixed to the toner container through the windows
of the validation viewer.
Look at the screening film through two windows to check the genuineness.

A black-colored band when seen through the the anti-counterfeit film portion left side window ( mark).
A shiny or gold-colored band when seen through the anti-counterfeit film portion right side window
( mark).

When seen as the above, it is genuine. Otherwise (e.g. both seen in gold), it is a
counterfeit.

4-1
 2NR/2NS/2NT

See through the left window See through the right window
( marking) ( marking)

Validation viewer Validation viewer

Brand Brand
protection protection
seal seal

A black-colored band when A shiny or gold-colored band when

seen through the left side window seen through the right side window

Figure 4-1

The brand protection seal has an incision as shown below to prohibit reuse.

Incision
Cut

Figure 4-2

4-2
 2NR/2NS/2NT-1

4-2 Maintenance Parts

(1) Maintenance kits
30 ppm model
120V

Maintenance part name Qua Part No. Alternate

ntity part num-
Name used in service manual Name used in parts list
ber
MK-5142 MK-5142/MAINTENANCE KIT 1 1702NR7US0 072NR7US
(200.000 images)
Drum unit DK-5140 4
Developer unit (K) DV-5140(K) 1
Developer unit (Y) DV-5140(Y) 1
Developer unit (M) DV-5140(M) 1
Developer unit (C) DV-5140(C) 1
Primary transfer unit TR-5140 1
Secondary transfer roller unit PARTS ROLLER TRANSFER SP 1
Fuser unit FK-5142 1
Paper feed roller unit PARTS HOLDER FEED ASSY SP 1
Retard roller PARTS RETARD ASSY SP 1

230V/ 240V/

Maintenance part name Qua Part No. Alternate

ntity part num-
Name used in service manual Name used in parts list
ber
MK-5140 MK-5140/MAINTENANCE KIT 1 1702NR8NL0 072NR8NL
MK-5144 MK-5144/MAINTENANCE KIT 1702NR8AS0 072NR8AS
(200.000 images)
Drum unit DK-5140 4
Developer unit (K) DV-5140(K) 1
Developer unit (Y) DV-5140(Y) 1
Developer unit (M) DV-5140(M) 1
Developer unit (C) DV-5140(C) 1
Primary transfer unit TR-5140 1
Secondary transfer roller unit PARTS ROLLER TRANSFER SP 1
Fuser unit FK-5140 1
Paper feed roller unit PARTS HOLDER FEED ASSY SP 1
Retard roller PARTS RETARD ASSY SP 1

4-3
 2NR/2NS/2NT-1

35 ppm model
120V

Maintenance part name Qua Part No. Alternate

ntity part num-
Name used in service manual Name used in parts list
ber
MK-5152 MK-5152/MAINTENANCE KIT 1 1702NS7US0 072NS7US
(200.000 images)
Drum unit DK-5140 4
Developer unit (K) DV-5150(K) 1
Developer unit (Y) DV-5150(Y) 1
Developer unit (M) DV-5150(M) 1
Developer unit (C) DV-5150(C) 1
Primary transfer unit TR-5140 1
Secondary transfer roller unit PARTS ROLLER TRANSFER SP 1
Fuser unit FK-5162 1
Paper feed roller unit PARTS HOLDER FEED ASSY SP 1
Retard roller PARTS RETARD ASSY SP 1

230V/ 240V

Maintenance part name Qua Part No. Alternate

ntity part num-
Name used in service manual Name used in parts list
ber
MK-5150 MK-5150/MAINTENANCE KIT 1 1702NS8NL0 072NS8NL
MK-5154 MK-5154/MAINTENANCE KIT 1702NS8AS0 072NS8AS
(200.000 images)
Drum unit DK-5140 4
Developer unit (K) DV-5150(K) 1
Developer unit (Y) DV-5150(Y) 1
Developer unit (M) DV-5150(M) 1
Developer unit (C) DV-5150(C) 1
Primary transfer unit TR-5140 1
Secondary transfer roller unit PARTS ROLLER TRANSFER SP 1
Fuser unit FK-5160 1
Paper feed roller unit PARTS HOLDER FEED ASSY SP 1
Retard roller PARTS RETARD ASSY SP 1

4-4
 2NR/2NS/2NT-2

40 ppm model
120V

Maintenance part name Qua Part No. Alternate

ntity part num-
Name used in service manual Name used in parts list
ber
MK-5162 MK-5162/MAINTENANCE KIT 1 1702NT7US0 072NT7US
(300.000 images)
Drum unit DK-5160 4
Developer unit (K) DV-5160(K) 1
Developer unit (Y) DV-5160(Y) 1
Developer unit (M) DV-5160(M) 1
Developer unit (C) DV-5160(C) 1
Primary transfer unit TR-5160 1
Secondary transfer roller unit PARTS ROLLER TRANSFER SP 1
Fuser unit FK-5172 1
Paper feed roller unit PARTS HOLDER FEED ASSY SP 1
Retard roller PARTS RETARD ASSY SP 1

230V/ 240V

Maintenance part name Qua Part No. Alternate

ntity part num-
Name used in service manual Name used in parts list
ber
MK-5160 MK-5160/MAINTENANCE KIT 1 1702NT8NL0 072NT8NL
MK-5164 MK-5164/MAINTENANCE KIT 1702NT8AS0 072NT8AS
(300.000 images)
Drum unit DK-5160 1
Developer unit (K) DV-5160(K) 1
1
Developer unit (Y) DV-5160(Y)
1
Developer unit (M) DV-5160(M)
1
Developer unit (C) DV-5160(C)
1
Primary transfer unit TR-5160 1
Secondary transfer roller unit PARTS ROLLER TRANSFER SP 4
Fuser unit FK-5170 1
Paper feed roller unit PARTS HOLDER FEED ASSY SP 1
Retard roller PARTS RETARD ASSY SP 1

(2) Clearing the maintenance kit message

Replace the maintenance kit at every 200,000 images (for 30/35 ppm model) and at 300,000 images (for 40
ppm model).
The message [Replace MK.] appears at the replacement timing.
30/35 ppm models: [Menu] key > [Adjust/Maintenance] > [Service] > [Maintenance]
(See page 6-14)
40 ppm models: [Menu] key > [Adjust/Maintenance] > [Service Setting] > [Maintenance]
(See page 6-14)

4-5
 2NR/2NS/2NT

4-3 Periodic maintenance procedures

(1) Detaching and reattaching the primary transfer unit
Procedures
1. Pull the lever (a).
2. Open the top cover (b).

Figure 4-3

3. Rotate the lock lever (a).

Figure 4-4

4-6
 2NR/2NS/2NT

4. Detach the toner containers (K, M, C and

Y)(a).

Figure 4-5

*:When detaching the toner container (a),

first lift its handle (b) and then pull it out
upward. a b

IMPORTANT
Without releasing the lock lever, do not lift
up the toner container forcefully.

Figure 4-6

4-7
 2NR/2NS/2NT

5. Pull the right shutter lever (a) in the direc-

tion of the arrow.
a
*:Close the toner feed inlet by pulling this
lever.

Figure 4-7

6. Remove the screw (a)(M3x12)

Figure 4-8

4-8
 2NR/2NS/2NT

7. Remove the screw (a)(M3x12)

8. Remove the lever cover (b).
9. Lift up the drive release lever (c). a

*:When raising the lever, the joint of the b

drive coupling is released.

IMPORTANT
If omitting to attach the lever cover, [Cover
open] message is displayed while the tray
switch is not turned on.

Figure 4-9

4-9
 2NR/2NS/2NT

10. Hold the handle (a) and detach the pri-

mary transfer unit (b).

Figure 4-10

*:Hold the handle (b) at the machine front 2

side and lift up the primary transfer unit
(a). Then, further lift it up and pull it
toward the machine front side to detach.

a
b

Figure 4-11

4-10
 2NR/2NS/2NT

*:When removing the primary transfer unit

(a) or it is unstable to install it, hold the
handle (b) at the machine rear side by the b
other hand

Figure 4-12

IMPORTANT
Do not touch the release lever (b) after detach- c a
ing the primary transfer unit (a).
This lever (b) is connected with the shutter
lever (c) and so they are released together by
installing the toner container into the main unit. b
The operation mistakenly open the toner feed
inlet (d).

Figure 4-13

4-11
 2NR/2NS/2NT

(2) Drum section

(2-1) Detaching and reattaching the drum unit

Procedures
1. Detach the drum unit (a)(M,C and Y) by
pulling it up.
Lift up the drum unit (K)(b) and pull it
toward the machine front side to detach
it.

a(M)
a(C)
a(Y)

b(K)

Figure 4-14

4-12
 2NR/2NS/2NT

*:Hold the handles (b) on both sides when

detaching the drum unit (a).

Figure 4-15

*:When attaching the drum unit (K)(a), tilt

it toward you to insert the drum shafts (b)
along the rails (c) all the way. Then, make c b
it vertical and push into the main unit.

1
2

Figure 4-16

4-13
 2NR/2NS/2NT

(3) Developer section

(3-1) Detaching and reattaching the developer unit
Procedures
1. Detach the developer unit (K, M, C and
Y)(a).
*:connection portion (b)

Figure 4-17

*:When detaching the developer unit (a), b b

hold both the left and right handles (b).

Figure 4-18

4-14
 2NR/2NS/2NT

*:Make sure not to touch the gears (a) in

the drive section where there is grease.

a
Figure 4-19
2. Detach the developer unit (a)(K, M, C and Y).
3. Reattach the parts in the original position.

IMPORTANT
When attaching the developer unit (a), match a
the colors between the back side (b) of the
developer unit and the right side (c) of the main
unit.

b c

Figure 4-20

4-15
 2NR/2NS/2NT

*:Remove the cap (b) when attaching the

new developer unit (a).

Figure 4-21

4. Attach the new drum unit (K,M,C,Y).

5. Reattach the parts in the original position.
6. Attach the new primary transfer unit.
7. Reattach the parts in the original position.
8. Detach the toner containers (K, M, C and Y).
9. Close the upper tray.

4-16
 2NR/2NS/2NT

(4) Fuser section

(4-1) Detaching and reattaching the fuser unit
Procedures
1. Open the rear cover (a).

Figure 4-22

2. Pull the lower part of the opening toward

the machine rear side and release the
hook (a).
3. Remove the interface cover (b).
a

Figure 4-23

4-17
 2NR/2NS/2NT

4. Remove the screw (a)(M3x8).

5. Remove the fuser wire cover (b). b
d
*:First insert the hook (c) into the opening
(d) and secure the screw.

Figure 4-24

6. Disconnect two connectors.

*:Disconnect each connector of the eject
a
PWB (a) and the fuser heater (b).
Do not disconnect two connectors (c) of
the fuser unit.

Figure 4-25

4-18
 2NR/2NS/2NT-1

7. Remove two screws (a) (M3x8: silver)

screws that are secured at the position
with the triangle engraving.
8. Detach the fuser unit (b).

9. Attach the new fuser unit.

10. Reattach the parts in the original position.

Figure 4-26
IMPORTANT
Take care not to touch the connector of the
pressure release sensor (b) when fitting the
fuser unit (a).
A service call error may appear if the sensor is
disconnected.

b
Figure 4-27

4-19
 2NR/2NS/2NT

When attaching the fuser unit, first secure the

screws and connect the connectors. (For pre-
vention of damage by electro-static)

Before reattaching the fuser wire cover, put the a

wire (a) in between the ribs (b) so that it is not b
caught by the fuser wire cover.
b

Figure 4-28

(5) Detaching and reattaching the retard roller

Procedures
1. Pull out the cassette (a).

Figure 4-29

4-20
 2NR/2NS/2NT

2. Pull the conveying stopper (a) toward the

machine right side and rotate it by using a
flat-blade screwdriver (b).
3. Release the hook (c) of the conveying
stopper (a) from the rib (d) and pull the
conveying stopper (a) out.

c
1

Figure 4-30

4-21
 2NR/2NS/2NT

4. Slide the duplex paper conveying unit (a)

toward the machine right side.
5. Release the fulcrum part of the duplex
paper conveying unit (a) at the machine
left side, and pull the unit out toward the
machine rear side.
a
1

Figure 4-31

4-22
 2NR/2NS/2NT

6. Release two hooks (a).

7. Remove the retard cover (b) toward you.
*:Place the flat-blade screwdriver (c) into
the center and remove it by bending it
towards the machine rear side.
8. Remove the retard roller unit (d).

IMPORTANT
d
Install the cassette first when attaching the
retard roller unit. The retard pressure release
1
lever must be located at the machine front side 2
from the retard roller unit to apply appropriate
pressure.

Figure 4-32

4-23
 2NR/2NS/2NT

When reattaching the retard cover (a), fasten

two upper hooks (b) and then push the retard
cover to fasten two lower hooks (c).
Check if four hooks (b and c) are surely fas- 1
tened after reattaching it.

c
c
b
a

Figure 4-33

4-24
 2NR/2NS/2NT

(6) Detaching and reattaching the paper feed roller unit

Procedures

1. Push the machine right side hook (a)

outward using a flat-blade screwdriver
(b).

b
a

Figure 4-34

4-25
 2NR/2NS/2NT

2. Pull the middle roller unit (b) out by hold-

ing handle A2 (a). a

A2

Figure 4-35

3. Remove the machine right side shaft (b) c b

of the middle roller unit (a) from the rail
(c).
4. Detach the middle roller unit (a).

Figure 4-36

4-26
 2NR/2NS/2NT

5. Rotate the lever (b) of the paper feed

roller pin (a) toward the machine rear
side.
6. Slide the paper feed roller pin (a) toward
the machine front side.

b
a

Figure 4-37

4-27
 2NR/2NS/2NT

7. Detach the paper feed roller unit (a).

8. Attach the new feed roller unit.
9. Reattach the parts in the original position.
10. Attach the new retard roller unit.
11. Reattach the parts in the original position.

Figure 4-38

(7) Detaching and reattaching the secondary transfer roller unit

Procedures
1. Release two hooks (b) of the duplex c
paper conveying unit (a).
2. Detach the secondary transfer roller unit a
(c).
3. Attach the new secondary transfer roller
unit (c).
4. Reattach the parts in the original position.
5. Reattach the duplex paper conveying unit
in the reverse order of removal.
6. Close the rear cover.

b
b

Figure 4-39

4-28
 2NR/2NS/2NT

IMPORTANT
When reattaching the secondary transfer roller a
unit (a), first fit the upper part and then insert
the hook (b) into the square hole.
Then, insert each hook (c) of both transfer
release levers into the inside ribs (d).

b
c b
c
d d

Figure 4-40

(8) Adjustment procedures after replacing the maintenance kit

Execute the following after replacing the maintenance kit.

Start

Execute the laser scanner cleaning

Execute the Color Calibration

Executing Color Registration

4-29
 2NR/2NS/2NT

Procedures
1. Execute the laser scanner cleaning
30 ppm models
(1)Display the screen.
[Menu] key > [▲][▼] key > [Adjustment/Maintenance] > [►] key > [▲][▼] key > [Service Setting]
> [►] key
(2)Adjust.
[▲][▼] key > [LSU] > [OK] key > [OK] key
After executing the laser scanner cleaning, [Service Settings] is displayed.

35/40 ppm models

(1) Display the screen.
[Menu] key > [▲][▼] key > [Adjustment/Maintenance] > [OK] key > [▲][▼] key > [Service Set-
ting] > [OK] key > [▲][▼] key > [LSU] > [OK] key
(2) Adjust.
Select [Execute]. The laser scanner cleaning is started.

2. Execute the color calibration

30 ppm models
(1)Display the screen.
[Menu] key > [▲][▼] key > [Adjustment/Maintenance] > [►] key
(2)Adjust.
[▲][▼] key > [Color Calibration] > [OK] key > [OK] key
[Color Calibration] is executed and [Adjustment/Maintenance] is displayed when completing it.

35/40 ppm models

(1) Display the screen.
[Menu] key > [▲][▼] key > [ Adjustment/Maintenance] > [OK] key > [▲][▼] key > [Color Calibra-
tion] > [OK] key

(2) Adjust.
Select [Yes} to execute the color calibration.
[Color Calibration] is executed and [Adjustment/Maintenance] is displayed when completing it.

(3)Execute [Color Calibration] from the System Menu.

3. Execute the color registration

Normal correction
30 ppm models
(1)Display the screen.
[Menu] key > [▲][▼] key > [Adjustment/Maintenance] > [►] key > [▲][▼] key > [Color Registra-
tion (Normal)] > [►] key

(2)Print chart.
[▲][▼] key > [Print chart] > [OK] key > [OK] key
The charts are printed. The chart indicating H-L (left), V (center) and H-R (right) per each color M
(Magenta), C (Cyan) and Y (Yellow) is printed.

35/40 ppm model

(1)Display the screen.
[Menu] key > [▲][▼] key > [Adjustment/Maintenance] > [OK] key > [▲][▼] key > [Color Registra-
tion] > [OK] key > [▲][▼] key > [Normal] > [OK] key

4-30
 2NR/2NS/2NT

(2)Print chart.
[▲][▼] key > [Print chart] > [OK] key > [Yes]
The charts are printed. The chart indicating H-L (left), V (center) and H-R (right) per each color M
(Magenta), C (Cyan) and Y (Yellow) is printed.
After printing, the [Color registration (Normal)] is displayed.

Chart sample (Normal)

Figure 4-41

30 ppm models
(3)Indicate the correction menu.
[Menu] key > [▲][▼] key > [Adjustment/Maintenance] > [►] key > [▲][▼] key > [Color Registra-
tion (Normal)] > [►] key > [▲][▼] key > [Magenta] > [OK] key
The correction menu for Magenta is displayed.

(4)Input values.
1.Find the point where two lines are most aligned from each chart. If it is at "0", the correction is
unnecessary. In case of the illustration below, "B" is the value that should be set.

4-31
 2NR/2NS/2NT

Figure 4-42
2.Select [◄] or [►] key and change L, V and R. Select [▲] or [▼] key and input the values read
from the chart. Press [OK] key.
Select [▲] key to shift the value 0 to 9. Select [▼] key when proceeding in the reverse direc-
tion.
Select [▼] key to shift the value from 0 to alphabets of A to I. Select [▲] key when proceeding
in the reverse direction.
Select [▼] key to shift the value from 0 to alphabets of A to I. Select [▲] key when proceeding
in the reverse direction.
Select the [OK] key.
The Magenta correction is complete.
3.Repeat step (3) and (4) to adjust Cyan and Yellow.

35/40 ppm models

(3)Indicate the correction menu.
[▲][▼] key > [Magenta] > [OK] key
The correction menu for Magenta is displayed.

(4)Input values.
1.Find the point where two lines are most aligned from each chart. If it is at "0", the correction is
unnecessary. In case of the illustration below, "B" is the value that should be set.

Figure 4-43
2.Select [◄] or [►] key and change L, V and R. Select [▲] or [▼] key and input the values read
from the chart. Press [OK] key.
Select [▲] key to shift the value 0 to 9. Select [▼] key when proceeding in the reverse direc-
tion.
Select [▼] key to shift the value from 0 to alphabets of A to I. Select [▲] key when proceeding
in the reverse direction.
Numeric keys input is not available.
3.Repeat step (3) and (4) to adjust Cyan and Yellow.

4-32
 2NR/2NS/2NT

Detailed Setting
30 ppm models
(1)Display the screen.
[Menu] key > [▲][▼] key > [Adjustment/Maintenance] > [►] key > [▲][▼] key > [Color Registra-
tion (Detail)] > [►] key

(2)Print chart.
[▲][▼] key > [Print chart] > [OK] key > [OK] key
The charts are printed. The chart indicating H1 to H5 (upper) and V1 to V5 (lower) per each color
M (Magenta), C (Cyan) and Y (Yellow) is printed.

35/40 ppm models

(1)Display the screen.
[Menu] key > [▲][▼] key > [Adjustment/Maintenance] > [OK] key > [▲][▼] key > [Color Regis-
tration] > [OK] key > [▲][▼] key > [Detail] > [OK] key
(2)Print chart.
[▲][▼] key > [Print chart] > [OK] key > [Yes]
The charts are printed. The chart indicating H1 to H5 (upper) and V1 to V5 (lower) per each color
M (Magenta), C (Cyan) and Y (Yellow) is printed.
After printing, the [Color Registration (Detail)] is displayed.

4-33
 2NR/2NS/2NT

Chart sample (Detail)

Figure 4-44
30 ppm models
(3)Indicate the correction menu.
[Menu] key > [▲][▼] key > [Adjustment/Maintenance] > [►] key > [▲][▼] key > [Color Registra-
tion (Detail)] > [►] key > [▲][▼] key > [Magenta] > [OK] key
The correction menu for Magenta is displayed.

(4)Input values.
1.Find the point where two lines are most aligned from each chart. If it is at "0", the correction is
unnecessary. In case of the illustration below, "B" is the value that should be set.
Read the values from H1 to H5 in the chart.
Read the value of V-3 (center) only of V1 to V5 in the chart.

4-34
 2NR/2NS/2NT

Figure 4-45

2.Select [◄] or [►] key and change H and V. Select [▲] or [▼] key and input the values read
from the chart. Press [OK] key.
Select [▲] key to shift the value 0 to 9. Select [▼] key when proceeding in the reverse direc-
tion.
Select [▼] key to shift the value from 0 to alphabets of A to I. Select [▲]key when proceeding
in the reverse direction.
3.Select the [OK] key.
The Magenta correction is complete.
4.Repeat step (3) and (4) to adjust Cyan and Yellow.

35/40 ppm models

(3)Indicate the correction menu.
[▲][▼] key > [Magenta] > [OK] key
(4)Input values.
1.Find the point where two lines are most aligned from each chart. If it is at "0", the correction is
unnecessary. In case of the illustration below, "B" is the value that should be set.
Read the values from H1 to H5 in the chart.
Read the value of V-3 (center) only of V1 to V5 in the chart.

Figure 4-46

2.Select [◄] or [►] key and change H-1 to H-5, V-3. Select [▲] or [▼] key and input the values
read from the chart. Press [OK] key.
After a while completing the Magenta correction, the color registration correction (Detail) is dis-
played.
Select [▲] key to shift the value 0 to 9. Select [▼] key when proceeding in the reverse direc-
tion.
Select [▼] key to shift the value from 0 to alphabets of A to I. Select [▲]key when proceeding
in the reverse direction.
Numeric keys input is not available.
3.Repeat step (3) and (4) to adjust Cyan and Yellow.

4-35
 2NR/2NS/2NT

4-4 Disassembly & Reassembly

(1) Outer covers
(1-1) Detaching and reattaching the front cover
Procedures

1. Open the top tray (b), by lifting the han-

dle (a).

Figure 4-47

4-36
 2NR/2NS/2NT

2. Open the MP tray (a).

3. Remove two screws (b)(M3x8). b
4. Open the waste toner cover (c).
b

Figure 4-48

5. Slightly lift up the front cover (a) to b

release the boss (b). b
6. Tilt the front cover (a) toward the machine
front side.
7. Then, remove the front cover (a) by lifting
it up.

Figure 4-49

4-37
 2NR/2NS/2NT

IMPORTANT a
Make sure not to touch the waste toner cover
sensor (b) when reattaching the front cover (a).
If the waste toner cover sensor (b) comes off, b
even if you close the waste toner cover, [cover
open] will be displayed.

Figure 4-50

(1-2) Detaching and reattaching the interface cover.

Procedures
1. Pull the lower part of the opening
toward the machine rear side and
release the hook (a).
2. Remove the interface cover (b).
a

Figure 4-51

4-38
 2NR/2NS/2NT

(1-3) Detaching and reattaching the upper right cover

Procedures
1. Pull the lower part of the opening
toward the machine rear side and
release the hook (a).
2. Remove the interface cover (b).
a

Figure 4-52

35/40 ppm models

3. Remove the screw (a)(M3x8).
4. Slide the upper right cover (b) toward the
machine rear side and detach it.

Figure 4-53

4-39
 2NR/2NS/2NT

IMPORTANT
When reattaching the upper right cover (a),
insert the hook (b) to the machine front side,
and then fasten nine hooks (c) by sliding it
toward the machine front side and insert the c
positioning projection (d) into the hole.
b

Figure 4-54

30 ppm models
3. Remove the screw (a)(M3x8).
4. Slide the upper right cover (b) toward the
machine rear side and detach it.

Figure 4-55

4-40
 2NR/2NS/2NT

IMPORTANT
When reattaching the upper right cover (a),
insert the hook (b) to the machine front side,
and then fasten seven hooks (c) by sliding it
toward the machine front side and insert the
positioning projection (d) into the hole.
c
b

Figure 4-56

(1-4) Detaching and reattaching the middle right cover

Procedures
1. Pull the lower part of the opening
toward the machine rear side and
release the hook (a).
2. Remove the interface cover (b).
a

Figure 4-57

4-41
 2NR/2NS/2NT

35/40 ppm models

3. Remove the screw (a)(M3x8).
4. Slide the upper right cover (b) toward the
machine rear side and detach it.

Figure 4-58

IMPORTANT
When reattaching the upper right cover (a),
insert the hook (b) to the machine front side,
and then fasten nine hooks (c) by sliding it
toward the machine front side and insert the c
positioning projection (d) into the hole.
b

Figure 4-59

4-42
 2NR/2NS/2NT

30 ppm models
3. Remove the screw (a)(M3x8).
4. Slide the upper right cover (b) toward the
machine rear side and detach it.

Figure 4-60

IMPORTANT
When reattaching the upper right cover (a),
insert the hook (b) to the machine front side,
and then fasten seven hooks (c) by sliding it
toward the machine front side and insert the
positioning projection (d) into the hole.
c
b

Figure 4-61

4-43
 2NR/2NS/2NT

5. Open the waste toner cover (a).

6. Press the arm (b) down.
7. Remove the waste toner cover (a).

Figure 4-62

8. Push the lever (a) and open the memory a

cover (b).
9. Remove the memory cover (b).

Figure 4-63

4-44
 2NR/2NS/2NT

10. Lift up the shield cover (a) and pull it

toward you to remove it.

Figure 4-64

11. Open the rear cover (a).

Figure 4-65

4-45
 2NR/2NS/2NT

12. Push the machine front side of the middle

rigth cover (a) toward the machine rear
side and then lift up its machine rear side
to detach it.

Figure 4-66

4-46
 2NR/2NS/2NT

IMPORTANT
When reattaching the middle right cover (a),
insert the lower rib into the the lower right
cover (b). Slide it toward the machine front
side to fasten three hooks (c) and then lower it d
to fasten three hooks (d), and fasten two hooks
(e) at the machine rear side.
Check if three hooks (d) at the machine rear c
side are surely fastened.

d
3
1
a
e
b

Figure 4-67

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 2NR/2NS/2NT

(1-5) Detaching and reattaching the lower right cover

Procedures
1. Pull the lower part of the opening
toward the machine rear side and
release the hook (a).
2. Remove the interface cover (b).
a

Figure 4-68

35/40 ppm models

3. Remove the screw (a)(M3x8).
4. Slide the upper right cover (b) toward the
machine rear side and detach it.

Figure 4-69

4-48
 2NR/2NS/2NT

IMPORTANT
When reattaching the upper right cover (a),
insert the hook (b) to the machine front side,
and then fasten nine hooks (c) by sliding it
toward the machine front side and insert the c
positioning projection (d) into the hole.
b

Figure 4-70

30 ppm models
3. Remove the screw (a)(M3x8).
4. Slide the upper right cover (b) toward the
machine rear side and detach it.

Figure 4-71

4-49
 2NR/2NS/2NT

IMPORTANT
When reattaching the upper right cover (a),
insert the hook (b) to the machine front side,
and then fasten seven hooks (c) by sliding it
toward the machine front side and insert the
positioning projection (d) into the hole.
c
b

Figure 4-72

5. Open the waste toner cover (a).

6. Press the arm (b) down.
7. Remove the waste toner cover (a).

Figure 4-73

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 2NR/2NS/2NT

8. Push the lever (a) and open the memory a

cover (b).
9. Remove the memory cover (b).

Figure 4-74

10. Lift up the shield cover (a) and pull it

toward you to remove it.

Figure 4-75

11. Open the rear cover (a).

Figure 4-76

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12. Push the machine front side of the middle

right cover (a) toward the machine rear
side and then lift up its machine rear side
to detach it.

Figure 4-77

4-52
 2NR/2NS/2NT

IMPORTANT
When reattaching the middle right cover (a),
insert the lower rib into the the lower right
cover (b). Slide it toward the machine front
side to fasten three hooks (c) and then lower it d
to fasten three hooks (d), and fasten two hooks
(e) at the machine rear side.
Check if three hooks (d) at the machine rear c
side are surely fastened.

d
3
1
a
e
b

Figure 4-78

4-53
 2NR/2NS/2NT

13. Remove the screw (a)(M3x8).

14. Release the hook (c) of the lower right
cover (b) toward the machine right side
and slide it toward the machine rear side
to detach it. c
1

a
2
b

Figure 4-79

(1-6) Detaching and reattaching the upper left cover

Procedures
1. Open the rear cover (a).

Figure 4-80

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 2NR/2NS/2NT

35/40 ppm models

2. Remove two screws (a)(M3x8).
3. Slide the upper left cover (b) toward the
machine rear side and detach it.

IMPORTANT d c
When reattaching the upper left cover (b),
insert the hook (c) to the machine front side,
and then fasten seven hooks (d) by sliding it
d
toward the machine front side.

Figure 4-81

30 ppm models
2. Remove the screw (a)(M3x8).
3. Slide the upper left cover (b) toward the
machine rear side and detach it. d

c
IMPORTANT
When reattaching the upper left cover (b),
insert the hook (c) to the machine front side,
and then fasten seven hooks (d) by sliding it d
toward the machine front side.

a
b

Figure 4-82

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(1-7) Detaching and reattaching the middle left cover

Procedures
1. Open the rear cover (a).

Figure 4-83

2. Remove two screws (a)(M3x8).

3. Slide the upper left cover (b) toward the
machine rear side and detach it.

IMPORTANT d c
When reattaching the upper left cover (b),
insert the hook (c) to the machine front side,
and then fasten seven hooks (d) by sliding it
d
toward the machine front side.

Figure 4-84

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4. Lift up the machine rear side of the middle

left cover (a) to release three hooks (b).
5. Slide the middle left cover (a) toward the
machine rear side to release two hooks
(c). c
6. Detach the middle left cover (a).

Figure 4-85

IMPORTANT
When reattaching the middle left cover (a),
insert the lower rib into the lower left cover d
(b). And, slide it toward the machine front 2 c
side to fasten three hooks (c) and four
hooks (d), then lower the machine rear side
of it to fasten three hooks (e) at the
machine rear side.
e

3
1
a

Figure 4-86

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(1-8) Detaching and reattaching the lower left cover

Procedures
1. Open the rear cover (a).

Figure 4-87

2. Remove two screws (a)(M3x8).

3. Slide the upper left cover (b) toward the
machine rear side and detach it.

IMPORTANT d c
When reattaching the upper left cover (b),
insert the hook (c) to the machine front side,
and then fasten seven hooks (d) by sliding it
d
toward the machine front side.

Figure 4-88

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4. Lift up the machine rear side of the middle

left cover (a) to release three hooks (b).
5. Slide the middle left cover (a) toward the
machine rear side to release two hooks
(c). c
6. Detach the middle left cover (a).

Figure 4-89

IMPORTANT
When reattaching the middle left cover (a),
insert the lower rib into the lower left cover d
(b). And, slide it toward the machine front 2 c
side to fasten three hooks (c) and four
hooks (d), then lower the machine rear side
of it to fasten three hooks (e) at the
machine rear side.
e

3
1
a

Figure 4-90

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 2NR/2NS/2NT

7. Remove the screw (a)(M3x8).

8. Pull the rib (b) toward you and release the
center hook (c).
9. Insert a flat-blade screwdriver to release
the hook (e).
10. Detach the lower left cover (d).

a
e d
e

c d

Figure 4-91

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 2NR/2NS/2NT

IMPORTANT
When attaching the lower left cover (a), insert 1
two bosses (b) at the machine front side into
the holes and apply the center hook (c). Then,
push it toward the machine rear side. After
that, secure the screw.

Check if the hook (c) at center is surely fas- c a

tened.
2

b
a

Figure 4-92

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4-5 PWBs replacement

(1) Detaching and reattaching the Main/Engine PWB

Procedures
1. Pull the lower part of the opening
toward the machine rear side and
release the hook (a).
2. Remove the interface cover (b).
a

Figure 4-93

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3. Remove the screw (a)(M3x8).

4. Slide the upper right cover (b) toward the
machine rear side and detach it.

Figure 4-94

IMPORTANT
When reattaching the upper right cover (a),
insert the hook (b) to the machine front side,
and then fasten nine hooks (c) by sliding it
toward the machine front side and insert the c
positioning projection (d) into the hole.
b

Figure 4-95

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5. Open the waste toner cover (a).

6. Press the arm (b) down.
7. Remove the waste toner cover (a).

Figure 4-96

8. Push the lever (a) and open the memory a

cover (b).
9. Remove the memory cover (b).

Figure 4-97

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10. Lift up the shield cover (a) and pull it

toward you to remove it.

Figure 4-98

11. Open the rear cover (a).

Figure 4-99

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12. Push the machine front side of the middle

right cover (a) toward the machine rear
side and then lift up its machine rear side
to detach it.

Figure 4-100
IMPORTANT
When reattaching the middle right cover (a),
insert the lower rib into the the lower right
cover (b). Slide it toward the machine front
side to fasten three hooks (c) and then lower it d
to fasten three hooks (d), and fasten two hooks
(e) at the machine rear side.
Check if three hooks (d) at the machine rear c
side are surely fastened.

d
3
1
a
e
b

Figure 4-101

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13. Remove the network connector cap (a).

Figure 4-102

14. Remove the optional PWB (b), if installed.

*:Remove two screws (a)(M3x8), and
detach it.

b
a

Figure 4-103

4-67
 2NR/2NS/2NT

15. Remove four screws (a)(M3x8).

a a

Figure 4-104

16. Remove the network connector (a) by

sliding it toward the machine rear side a
and then remove the controller shield (b).

1
b

Figure 4-105

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 2NR/2NS/2NT

17. Open the wire alignment film (c) by

releasing its square hole from the hook
(b) of the PWB guide (a).
c

b c

Figure 4-106

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 2NR/2NS/2NT

18. Release two hooks (b) of the PWB guides

(a).

a b

Figure 4-107

19. Slide the PWB guide (a) toward the a

machine rear side to release two hooks
(b).

b
IMPORTANT
Check if two hooks (b) are fastened after reat-
taching the PWB guide (a).
The optional board connector can not be con-
nected without applying the hook.

Figure 4-108

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20. Disconnect all the connectors and the

FFCs from the Main/Engine PWB (a). a
30/35 ppm model: 19 connectors
b
40 ppm model: 20 connectors
(YC9: used in only 40 ppm model)
21. Release the wire from the hook (c) of the
wire guide (b).

YC7 YC2002 YC11

YC1 YC2003
YC9

YC2
YC2009
YC3

YC2018
YC24
YC20

YS2000
YC2000
YC5

a
YC6
YC2017 YC2016 YC12 YC19

YC2005 YC2006

YC13 YC21
YC4 YC14 YC15

Figure 4-109

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*:Remove the wire film (b) when discon-

necting the lower FFC (a).

Figure 4-110

22. Remove two screws (a)(M3x8). c

23. Release the hook (c) from the Main/
Engine PWB (d) and remove the wire b
guide (b).

a
c

Figure 4-111

4-72
 2NR/2NS/2NT

24. Remove four screws (a)(M3x8).

25. Remove the Main/Engine PWB (b).

Figure 4-112

26. Replace the EEPROM(U19) (b) from the

a
old PWB (a) to the new one.

27. Check the Main/Engine PWB and clean

or replace it if necessary.
*:Replace the optional memory from the
old PWB to the new one, if installed.
28. Reattach the parts in the original position.

Figure 4-113

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 2NR/2NS/2NT-2

Notes when replacing the Main/Engine PWB

1. Since the MAC address changes, check the network settings.
Example: If the printer name is registered with the IP address, reset the IP address.
2. For 40ppm model, if the following setting is changed from the default value, reset it again in the system
menu, adjust / maintenance
(1)Drum Heater Setting (default: OFF) *: for 40 ppm/ Asian models (except China)
(2)Auto drum refresh operation (default: normal)

Execute the following after replacing the Main/Engine PWB.

1. Upgrade the main and the engine firmware to the latest version, and install the option language and color
table1,2). (see page 1-6-58)
2. Execute the color calibration

30 ppm models
(1)Display the screen.
[Menu] key > [▲][▼] key > [Adjustment/Maintenance] > [►] key
(2)Adjust.
[▲][▼] key > [Color Calibration] > [OK] key > [OK] key
[Color Calibration] is executed and [Adjustment/Maintenance] is displayed when completing it.

35/40 ppm models

(1) Display the screen.
[Menu] key > [▲][▼] key > [ Adjustment/Maintenance] > [OK] key > [▲][▼] key > [Color Calibra-
tion] > [OK] key

(2) Adjust.
Select [Yes} to execute the color calibration.
[Color Calibration] is executed and [Adjustment/Maintenance] is displayed when completing it.

(3)Execute [Color Registration] from the System Menu.

3. Execute the color registration

Normal correction
30 ppm models
(1)Display the screen.
[Menu] key > [▲][▼] key > [Adjustment/Maintenance] > [►] key > [▲][▼] key > [Color Registra-
tion (Normal)] > [►] key

(2)Print chart.
[▲][▼] key > [Print chart] > [OK] key > [OK] key
The charts are printed. The chart indicating H-L (left), V (center) and H-R (right) per each color M
(Magenta), C (Cyan) and Y (Yellow) is printed.

35/40 ppm model

(1)Display the screen.
[Menu] key > [▲][▼] key > [Adjustment/Maintenance] > [OK] key > [▲][▼] key > [Color Registra-
tion] > [OK] key > [▲][▼] key > [Normal] > [OK] key

(2)Print chart.
[▲][▼] key > [Print chart] > [OK] key > [Yes]
The charts are printed. The chart indicating H-L (left), V (center) and H-R (right) per each color M
(Magenta), C (Cyan) and Y (Yellow) is printed.
After printing, the [Color registration (Normal)] is displayed.

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Chart sample (Normal)

Figure 4-114

30 ppm models
(3)Indicate the correction menu.
[Menu] key > [▲][▼] key > [Adjustment/Maintenance] > [►] key > [▲][▼] key > [Color Registra-
tion (Normal)] > [►] key > [▲][▼] key > [Magenta] > [OK] key
The correction menu for Magenta is displayed.

(4)Input values.
1.Find the point where two lines are most aligned from each chart. If it is at "0", the correction is
unnecessary. In case of the illustration below, "B" is the value that should be set.

4-75
 2NR/2NS/2NT

Figure 4-115
2.Select [◄] or [►] key and change L, V and R. Select [▲] or [▼] key and input the values read
from the chart. Press [OK] key.
Select [▲] key to shift the value 0 to 9. Select [▼] key when proceeding in the reverse direc-
tion.
Select [▼] key to shift the value from 0 to alphabets of A to I. Select [▲] key when proceeding
in the reverse direction.
Select [▼] key to shift the value from 0 to alphabets of A to I. Select [▲] key when proceeding
in the reverse direction.
Select the [OK] key.
The Magenta correction is complete.
3.Repeat step (3) and (4) to adjust Cyan and Yellow.

35/40 ppm models

(3)Indicate the correction menu.
[▲][▼] key > [Magenta] > [OK] key
The correction menu for Magenta is displayed.

(4)Input values.
1.Find the point where two lines are most aligned from each chart. If it is at "0", the correction is
unnecessary. In case of the illustration below, "B" is the value that should be set.

Figure 4-116
2.Select [◄] or [►] key and change L, V and R. Select [▲] or [▼] key and input the values read
from the chart. Press [OK] key.
Select [▲] key to shift the value 0 to 9. Select [▼] key when proceeding in the reverse direc-
tion.
Select [▼] key to shift the value from 0 to alphabets of A to I. Select [▲] key when proceeding
in the reverse direction.
Numeric keys input is not available.
3.Repeat step (3) and (4) to adjust Cyan and Yellow.

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Detailed Setting
30 ppm models
(1)Display the screen.
[Menu] key > [▲][▼] key > [Adjustment/Maintenance] > [►] key > [▲][▼] key > [Color Registra-
tion (Detail)] > [►] key

(2)Print chart.
[▲][▼] key > [Print chart] > [OK] key > [OK] key
The charts are printed. The chart indicating H1 to H5 (upper) and V1 to V5 (lower) per each color
M (Magenta), C (Cyan) and Y (Yellow) is printed.

35/40 ppm models

(1)Display the screen.
[Menu] key > [▲][▼] key > [Adjustment/Maintenance] > [OK] key > [▲][▼] key > [Color Regis-
tration] > [OK] key > [▲][▼] key > [Detail] > [OK] key
(2)Print chart.
[▲][▼] key > [Print chart] > [OK] key > [Yes]
The charts are printed. The chart indicating H1 to H5 (upper) and V1 to V5 (lower) per each color
M (Magenta), C (Cyan) and Y (Yellow) is printed.
After printing, the [Color Registration (Detail)] is displayed.

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Chart sample (Detail)

Figure 4-117
30 ppm models
(3)Indicate the correction menu.
[Menu] key > [▲][▼] key > [Adjustment/Maintenance] > [►] key > [▲][▼] key > [Color Registra-
tion (Detail)] > [►] key > [▲][▼] key > [Magenta] > [OK] key
The correction menu for Magenta is displayed.

(4)Input values.
1.Find the point where two lines are most aligned from each chart. If it is at "0", the correction is
unnecessary. In case of the illustration below, "B" is the value that should be set.
Read the values from H1 to H5 in the chart.
Read the value of V-3 (center) only of V1 to V5 in the chart.

4-78
 2NR/2NS/2NT

Figure 4-118

2.Select [◄] or [►] key and change H and V. Select [▲] or [▼] key and input the values read
from the chart. Press [OK] key.
Select [▲] key to shift the value 0 to 9. Select [▼] key when proceeding in the reverse direc-
tion.
Select [▼] key to shift the value from 0 to alphabets of A to I. Select [▲]key when proceeding
in the reverse direction.
3.Select the [OK] key.
The Magenta correction is complete.
4.Repeat step (3) and (4) to adjust Cyan and Yellow.

35/40 ppm models

(3)Indicate the correction menu.
[▲][▼] key > [Magenta] > [OK] key
(4)Input values.
1.Find the point where two lines are most aligned from each chart. If it is at "0", the correction is
unnecessary. In case of the illustration below, "B" is the value that should be set.
Read the values from H1 to H5 in the chart.
Read the value of V-3 (center) only of V1 to V5 in the chart.

Figure 4-119

2.Select [◄] or [►] key and change H-1 to H-5, V-3. Select [▲] or [▼] key and input the values
read from the chart. Press [OK] key.
After a while completing the Magenta correction, the color registration correction (Detail) is dis-
played.
Select [▲] key to shift the value 0 to 9. Select [▼] key when proceeding in the reverse direc-
tion.
Select [▼] key to shift the value from 0 to alphabets of A to I. Select [▲]key when proceeding
in the reverse direction.
Numeric keys input is not available.
3.Repeat step (3) and (4) to adjust Cyan and Yellow.

4. Re-activate the license if optional licensed product is installed.

(1)Card Authentication Kit(B)

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 2NR/2NS/2NT

(2)UG-33 (ThinPrint)
(3)Data Security Kit(E)
*:Re-input four-digit encrypted code that was input at setup.

5. Reset the user initial values from the System Menu and Command Center.

(2) Detaching and reattaching the engine relay PWB

Procedures
1. Open the rear cover (a).

Figure 4-120

2. Remove two screws (a)(M3x8).

3. Slide the upper left cover (b) toward the
machine rear side and detach it.

IMPORTANT d c
When reattaching the upper left cover (b),
insert the hook (c) to the machine front side,
and then fasten seven hooks (d) by sliding it
d
toward the machine front side.

Figure 4-121

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4. Lift up the machine rear side of the middle

left cover (a) to release three hooks (b).
5. Slide the middle left cover (a) toward the
machine rear side to release two hooks c
(c).
6. Detach the middle left cover (a).

Figure 4-122

IMPORTANT
When reattaching the middle left cover (a),
insert the lower rib into the lower left cover
(b). And, slide it toward the machine front d
side to fasten three hooks (c) and four c
2
hooks (d), then lower the machine rear side
of it to fasten three hooks (e) at the
machine rear side.

3
1
a

Figure 4-123

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 2NR/2NS/2NT

7. Remove the screw (a)(M3x8).

8. Pull the rib (b) toward you and release the
center hook (c).
9. Detach the lower left cover (d).

a
e d
e

c d

Figure 4-124

IMPORTANT
When attaching the lower left cover (a), insert
two bosses at the machine front side into the
1
holes and apply the center hook. Then, push it
toward the machine rear side. After that,
secure the screw.

Check if the hook at center is surely fastened. c a

b
a
Figure 4-125

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 2NR/2NS/2NT

10. Disconnect all the connectors and FFCs

from the engine relay PWB (a).
30 ppm model: 23 connectors
35/40 ppm model: 24 connectors
(YC27: used in only 35/40 ppm model)

YC20 YC13 YC12 YC16

YC14 YC3

YC18
YC8 YC26
YC2

YC15 YC25 YC10

YC5
YC1
YC7 YC4

YC19
YC6
YC22
YC27

1
YC23

2
YC21 YC24

Figure 4-126

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 2NR/2NS/2NT

11. Remove three screws (a)(M3x8).

12. Detach the engine relay PWB (b).
13. Check the engine relay PWB and clean or
replace it if necessary.
14. Reattach the parts in the original position.

a b
Figure 4-127

(3) Detaching and reattaching the high-voltage PWB

Procedures
1. Pull the lower part of the opening
toward the machine rear side and
release the hook (a).
2. Remove the interface cover (b).
a

Figure 4-128

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 2NR/2NS/2NT

3. Remove the screw (a) (M3x8).

4. Slide the upper right cover (b) toward the
machine rear side and detach it.

Figure 4-129

IMPORTANT
When reattaching the upper right cover (a),
insert the hook (b) to the machine front side,
and then fasten nine hooks (c) by sliding it
toward the machine front side and insert the c
positioning projection (d) into the hole.
b

Figure 4-130

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 2NR/2NS/2NT

5. Open the waste toner cover (a).

6. Press the arm (b) down.
7. Remove the waste toner cover (a).

Figure 4-131

8. Push the lever (a) and open the memory a

cover (b).
9. Remove the memory cover (b).

Figure 4-132

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 2NR/2NS/2NT

10. Lift up the shield cover (a) and pull it

toward you to remove it.

Figure 4-133

11. Push the machine front side of the middle

right cover (a) toward the machine rear
side and then lift up its machine rear side
to detach it.

Figure 4-134

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 2NR/2NS/2NT

IMPORTANT
When reattaching the middle right cover (a),
insert the lower rib into the the lower right
cover. Slide it toward the machine front side to
fasten three hooks (b) and then lower it to fas- d
ten five hooks (c), and fasten two hooks (d) at
the machine rear side.
Check if two hooks (d) at the machine rear side c
are surely fastened.

d
3
1
a
e
b

Figure 4-135

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 2NR/2NS/2NT

12. Pull the lever (a).

13. Open the top tray (b).

Figure 4-136

14. Open the MP tray (a).

15. Remove two screws (b)(M3x8). b
16. Open the waste toner cover (c).
b

Figure 4-137

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 2NR/2NS/2NT

17. Slightly lift up the front cover (a) to b

release the boss (b). b
18. Tilt the front cover (a) toward the machine
front side.
19. Then, remove the front cover (a) by lifting
it up.

Figure 4-138

IMPORTANT a
Make sure not to touch the waste toner cover
sensor (b) when reattaching the front cover (a).
If the waste toner cover sensor (b) comes off, b
even if you close the waste toner cover, [cover
open] will be displayed.

Figure 4-139

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 2NR/2NS/2NT

20. Remove the screw (a)(M3x8).

Figure 4-140

21. Release four hooks (a) at both sides of

the high-voltage PWB (c). b
22. Slightly tilt the PWB toward you and
release the FFC (b).

a
a
a

Figure 4-141

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 2NR/2NS/2NT-1

23. Tilt the high-voltage PWB (a) to 90

degrees and pull it out toward you.

*:The lower hook (b) on the PWB might

break if removing it without pus it down.

24. Check the paper feed drive unit and clean

or replace it if necessary.
25. Reattach the parts in the original position.

b b

Figure 4-142
IMPORTANT
When reattaching the high-voltage PWB (d),
insert the lower part of the PWB into four of the
lower hooks (b) and insert the left and right
positioning pins (c) into the holes. Then, raise
the PWB and apply two hooks each at the left e
2
and right side.

After reattaching the high-voltage PWB (d),

check that it is secured with two hooks at the
each left and right side and four hooks (b). (If
1
the hook is not fastened, the image failure d c e
might appear.)
e
Also, check the terminal spring (e) contacts the
terminal (f). e
e
Terminal:
f
c e
Lower side: 12 b
Left side: 5 (30/ 35 ppm model)
1 (40 ppm model)
Figure 4-143

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 2NR/2NS/2NT

(4) Detaching and reattaching the high-voltage PWB 2 (for 40 ppm models only)
Procedures

1. Open the top tray (b), by lifting the han-

dle (a).

Figure 4-144

2. Open the MP tray (a).

3. Remove two screws (b)(M3x8). b
4. Open the waste toner cover (c).
b

Figure 4-145

4-93
 2NR/2NS/2NT

5. Slightly lift up the front cover (a) to b

release the boss (b). b
6. Tilt the front cover (a) toward the machine
front side.
7. Then, remove the front cover (a) by lifting
it up.

Figure 4-146

IMPORTANT a
Make sure not to touch the waste toner cover
sensor (b) when reattaching the front cover (a).
If the waste toner cover sensor (b) comes off, b
even if you close the waste toner cover, [cover
open] will be displayed.

Figure 4-147

4-94
 2NR/2NS/2NT

8. Disconnect the connector (a).

9. Remove the screw (b)(M3x8).
a

Figure 4-148

10. Release two hooks (a), and detach the D

high-voltage PWB 2 (b).

Figure 4-149

4-95
 2NR/2NS/2NT-1

IMPORTANT
When reattaching the high-voltage PWB 2 (a),
insert the lower part of the PWB into four of the
D
lower hooks (b), and raise the PWB and fasten
two hooks at the right side.
Also, check the terminal spring (c) contacts the
terminal (d).

Terminal:
Lower side: 5

b
c d

Figure 4-150

4-96
 2NR/2NS/2NT

(5) Detaching and reattaching the power source PWB

Procedures
1. Pull the lower part of the opening
toward the machine rear side and
release the hook (a).
2. Remove the interface cover (b).
a

Figure 4-151

3. Remove the screw (a)(M3x8).

4. Slide the upper right cover (b) toward the
machine rear side and detach it.

Figure 4-152

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 2NR/2NS/2NT

IMPORTANT
When reattaching the upper right cover (a),
insert the hook (b) to the machine front side,
and then fasten nine hooks (c) by sliding it
toward the machine front side and insert the c
positioning projection (d) into the hole.
b

Figure 4-153

5. Open the waste toner cover (a).

6. Press the arm (b) down.
7. Remove the waste toner cover (a).

Figure 4-154

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 2NR/2NS/2NT

8. Push the lever (a) and open the memory a

cover (b).
9. Remove the memory cover (b).

Figure 4-155

10. Lift up the shield cover (a) and pull it

toward you to remove it.

Figure 4-156

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11. Push the machine front side of the middle

right cover (a) toward the machine rear
side and then lift up its machine rear side
to detach it.

Figure 4-157
IMPORTANT
When reattaching the middle right cover (a),
insert the lower rib into the the lower right
cover (b). Slide it toward the machine front
side to fasten three hooks (c) and then lower it d
to fasten three hooks (d), and fasten two hooks
(e) at the machine rear side.
Check if three hooks (d) at the machine rear c
side are surely fastened.

d
3
1
a
e
b

Figure 4-158

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 2NR/2NS/2NT

12. Remove the screw (a)(M3x8).

13. Release the hook (c) of the lower right
cover (b) toward the machine right side
and slide it toward the machine rear side
to detach it. c
1

a
2
b

Figure 4-159

14. Remove two screws (a)(M3x8, P).

15. Remove the screw (b)(M3x8, S).
16. Release the hook (c).
17. Remove the power source shield (d).

*:The screw (a) and (b) are different and

secure them at the original place.

a
Figure 4-160

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18. Disconnect all the connectors from the

power source PWB (a). (five connectors)
19. Remove two screws (b)(M3x8).
20. Release two hooks (c).
21. Remove the power source PWB (a).
22. Check the power source PWB and clean
or replace it if necessary.
23. Reattach the parts in the original position.

b
a

b
c c
YC105

YC104 YC103

YC101 YC102

Figure 4-161

IMPORTANT
When reattaching the power source shield (a),
insert the lower two hooks (b) into the square d
holes (c) of the main unit and fasten the upper
hook (d). Then, secure it with the screw (e).

b
a
e

Figure 4-162

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 2NR/2NS/2NT-1

(6) Detaching and reattaching the operation panel PWB

Procedures
a
1. Open the top tray (a).
2. Insert a flat-blade screwdriver (c) into the
square hole of the top tray (b) and release
two hooks (e) of the operation panel (d). e
3. Lift up the operation panel and remove it
from the upper tray.

c
Figure 4-163
30 ppm models

4. Remove the FFC (a) and then remove the

operation panel.

Figure 4-164
35/40 ppm models

4. Remove the FFC (a) and ground wire (b)

and then remove the operation panel.

*:Attach the operation panel after passing

the ground wire (b) connector through the
aperture of the upper tray.
b

Figure 4-165

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4-6 Other parts

(1) Optical section (Laser scanning)

(1-1) Detaching and reattaching the LSU
Procedures
1. Open the top tray (b), by lifting the han-
dle (a).

Figure 4-166

2. Rotate the lock lever (a).

Figure 4-167

4-104
 2NR/2NS/2NT

3. Detach the toner containers (K, M, C and

Y)(a).

Figure 4-168

*:When detaching the toner container (a),

first lift its handle (b) and then pull it out
upward. a b

Figure 4-169

4-105
 2NR/2NS/2NT

4. Pull the right shutter lever (a) in the direc-

tion of the arrow.
a
*:Close the toner feed inlet by pulling this
lever.

Figure 4-170

5. Remove the screw (a)(M3x12).

Figure 4-171

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 2NR/2NS/2NT

6. Remove the screw (a)(M3x12).

7. Remove the lever cover (b).
8. Lift up the drive release lever (c). a

*:When raising the lever, the joint of the b

drive coupling is released.

IMPORTANT
If omitting to attach the lever cover, [Cover
open] message is displayed while the tray
switch is not turned on.

Figure 4-172

9. Hold the handle (a) and detach the pri-

mary transfer unit (b).

Figure 4-173

4-107
 2NR/2NS/2NT

*:Hold the handle (b) at the machine front 2

side and lift up the primary transfer unit
(a). Then, further lift it up and pull it
toward the machine front side to detach.

a
b

Figure 4-174

*:When removing the primary transfer unit

(a) or it is unstable to install it, hold the
handle (b) at the machine rear side by the b
other hand.

Figure 4-175

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 2NR/2NS/2NT

*:Do not touch the release lever (b) after c a

detaching the primary transfer unit (a).
This lever (b) is connected with the shut-
ter lever (c) and so they are released
together by installing the toner container b
into the main unit.
The operation mistakenly open the toner
feed inlet (d).

Figure 4-176

4-109
 2NR/2NS/2NT

10. Detach the drum unit (a)(M,C and Y) by

pulling it up.
Lift up the drum unit (K)(b) and pull it
toward the machine front side to detach it.

a(M)
a(C)
a(Y)

b(K)

Figure 4-177

IMPORTANT
Hold the handles (b) on both sides when
detaching the drum unit (a).
b

Figure 4-178

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 2NR/2NS/2NT

11. Detach the developer unit (K, M, C and

Y)(a).

Figure 4-179

*:When detaching the developer unit (a), b b

hold both the left and right handles (b).

Figure 4-180

*:Make sure not to touch the gears (a) in

the drive section where there is grease.

a
Figure 4-181

4-111
 2NR/2NS/2NT

IMPORTANT
When attaching the developer unit (a), match a
the colors between the back side (b) of the
developer unit and the right side (c) of the main
unit.

b c

Figure 4-182

12. Open the rear cover (a).

13. Pull the lower part of the opening toward
the machine rear side and release the
hook (a). a
14. Remove the interface cover (b).

Figure 4-183

4-112
 2NR/2NS/2NT

15. Remove the screw (a)(M3x8).

16. Slide the upper right cover (b) toward the
machine rear side and detach it.

Figure 4-184

IMPORTANT
When reattaching the upper right cover (a),
insert the hook (b) to the machine front side,
and then fasten nine hooks (c) by sliding it
toward the machine front side and insert the c
positioning projection (d) into the hole.
b

Figure 4-185

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17. Open the waste toner cover (a).

18. Press the arm (b) down.
19. Remove the waste toner cover (a).

Figure 4-186

20. Push the lever (a) and open the memory a

cover (b).
21. Remove the memory cover (b).

Figure 4-187

4-114
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22. Lift up the shield cover (a) and pull it

toward you to remove it.

Figure 4-188

23. Push the machine front side of the middle

right cover (a) toward the machine rear
side and then lift up its machine rear side
to detach it.

Figure 4-189

4-115
 2NR/2NS/2NT

IMPORTANT
When reattaching the middle right cover (a),
insert the lower rib into the the lower right
cover (b). Slide it toward the machine front
side to fasten three hooks (c) and then lower it d
to fasten three hooks (d), and fasten two hooks
(e) at the machine rear side.
Check if three hooks (d) at the machine rear c
side are surely fastened.

d
3
1
a
e
b

Figure 4-190

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24. Remove the network connector cap (a).

Figure 4-191

25. Remove the optional board (b), if

installed.
*:Remove two screws (a)(M3x8), and
detach it.

b
a

Figure 4-192

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 2NR/2NS/2NT

26. Remove four screws (a)(M3x8).

27. Remove the controller shield (d).

a a

Figure 4-193

28. Remove the network connector (a) by

sliding it toward the machine rear side a
and then remove the controller shield (b).

1
b

b
Figure 4-194

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 2NR/2NS/2NT

29. Open the wire alignment film (a) by

releasing its square hole (b) from the
hook (c).
c

b c

Figure 4-195

4-119
 2NR/2NS/2NT

30. Release two hooks (b) of the PWB guides

(a).

a b

Figure 4-196

a
31. Slide the PWB guide (a) toward the
machine rear side to release two hooks
(b).

IMPORTANT
Check if two hooks (b) are fastened after reat-
taching the PWB guide (a).
The optional board connector can not be con-
nected without applying the hook.

Figure 4-197

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 2NR/2NS/2NT

32. Disconnect two connectors (YC2016 and b

YC2017) from the Main/Engine PWB (a).
33. Release the wire (d) from three hooks (c)
of the wire guide (d).

Figure 4-198

34. When removing the laser scanner unit

(CY), open the wiring film (a) after remov-
ing the connector YC2017.

Figure 4-199

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35. Pull the wire (a) into the main unit from
the opening (b).

a
YC2016

b
YC2017

Figure 4-200

4-122
 2NR/2NS/2NT

36. Remove the drum heater (K,M,C,Y)(a), if a

installed.
(for 40 ppm model only, to step 37 for not
installed model and 30/35 ppm model)

Figure 4-201

1.Disconnect the connector (b) of

the drum relay PWB (a). b

Figure 4-202

4-123
 2NR/2NS/2NT

2.Lift up the machine left side of a

the drum heater (a) to remove
the pin (b) from the boss.

Figure 4-203

3.Slide the boss (b) at the

machine right side of the drum a
heater (a) to remove it.
2
1

Figure 4-204

4-124
 2NR/2NS/2NT

* :Like this, remove four drum

heaters (a).

Figure 4-205
a
37. Remove each set of three pins (a).
38. Detach the LSUs (b) for KM and CY. b(KM)
*:Pull out the wire from the opening and
a
remove it.
39. Check the paper feed drive unit and clean a
or replace it if necessary.
40. Reattach the parts in the original position.
41. Execute the following after replacing with
the new laser scanner unit.
System Menu
[Adjustment/Maintenance]
1.Executes Color adjustment
(Color Calibration)
2.Executes Color Registration
b(CY)
IMPORTANT
Secure the pins in order of A, B and C when
reattaching the LSU.

C C

B A B A

Figure 4-206

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 2NR/2NS/2NT

Make sure to return the spiral (a) to the lock b

position after relocating it to reattach the pin (b) a
that is in the position A.

Figure 4-207

*:Make sure not to touch the APC PWB (b) a

when holding the LSU (a).

Figure 4-208

4-126
 2NR/2NS/2NT

IMPORTANT
Pull the wire (b) out from the aperture (c) of the c
c
frame when reattaching the LSU (a).
There is an engraving (d) of an arrow indicat-
ing the opening position in the frame.

b(RED)
b(BLUE)

a(KM)
a(YC)

Figure 4-209

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 2NR/2NS/2NT

Please be care not locate the wire saddle (b)

on the pin protrusion (c) before reattaching the
LSU (a).
b

c
c

Figure 4-210

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 2NR/2NS/2NT

(2) MP tray paper feed section

(2-1) Detaching and reattaching the MP feed roller
Procedures
1. Pull out the cassette (a).

Figure 4-211

2. Lower the release lever (a).

3. Open the lower MP conveying unit (b).

b a

Figure 4-212

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 2NR/2NS/2NT

4. Pull the lever (a).

5. Open the top tray (b).

Figure 4-213

6. Open the MP tray (a).

7. Remove two screws (b)(M3x8). b
8. Open the waste toner cover (c).
b

Figure 4-214

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9. Slightly lift up the front cover (a) to b

release the boss (b). b
10. Tilt the front cover (a) toward the machine
front side.
11. Then, remove the front cover (a) by lifting
it up.

Figure 4-215

IMPORTANT a
Make sure not to touch the waste toner cover
sensor (b) when reattaching the front cover (a).
If the waste toner cover sensor (b) comes off, b
even if you close the waste toner cover, [cover
open] will be displayed.

Figure 4-216

4-131
 2NR/2NS/2NT

12. Open the MP tray (a) slightly.

13. Lift up the MP tray cover (b) and release
two hooks (c).
b

c
Figure 4-217

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 2NR/2NS/2NT

14. Fully open the MP tray (a).

15. Slide the arm (b) to the machine rear side
and lift it up to remove. b

Figure 4-218
16. Remove two screws (a)(M3x8).

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 2NR/2NS/2NT

17. Detach the lower MP paper feed unit (b).

b
a

Figure 4-219

IMPORTANT
Lower the MP bottom plate (b) so that the lever
(c) is on it when reattaching the lower MP
c
paper feed unit (a).
*:The paper is not fed because the MP
bottom plate (b) cannot ascend and
descend when it is not in the correct posi-
tion.

Figure 4-220

4-134
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18. Pull the hook (a) toward the machine front

side.
19. Slide the MP paper feed shaft (b).
20. Remove the MP feed roller (c).

a
1

Figure 4-221

IMPORTANT
When reattaching the MP paper feed roller (a), a
3
be aware of the attachment direction.

Figure 4-222

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(2-2) Detaching and reattaching the MP conveying unit

Procedures
1. Remove the MP feed roller (a).

2. Pull the hook (b) toward the machine front 1 b

side. d
3. Slide the MP paper feed shaft (c).
4. Pull the MP paper feed shaft (c) out from
the drive joint (d).

2
c

Figure 4-223

5. Disconnect the connector (b)(YC6) from

the engine relay PWB (a).
6. Release the wire from eight hooks (c).

c
a c

b c

YC6

Figure 4-224

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7. Remove two screws (a)(M3x8).

8. Detach the MP conveying unit (b) toward
the machine front side.

b
a

Figure 4-225

IMPORTANT
Check if the wire is fastened to the hook (b)
before reattaching the MP conveying unit (a).

Figure 4-226

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 2NR/2NS/2NT

Lower the actuator (b) of the paper sensor

before reattaching the MP conveying unit (a).

Figure 4-227

4-138
 2NR/2NS/2NT

Insert the positioning (c) at the both sides into

the cutout and then secure the screw.

Figure 4-228

4-139
 2NR/2NS/2NT

(3) Drum section

(3-1) Detaching and reattaching the main charger roller unit
Procedures
1. Detach the drum unit (a).

2. Pull the hook (c) of the main charger roller

unit (b) in the drum unit (a) to release it.
3. Push the main charger roller unit (b) from
the opposite side of the opening.

b
c

Figure 4-229

4. Pull the main charger roller unit (b) by

holding the handle (a).

Figure 4-230

4-140
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(4) Eject section

(4-1) Detaching and reattaching the eject unit
30 ppm models
Procedures
1. Pull the lower part of the opening
toward the machine rear side and
release the hook (a).
2. Remove the interface cover (b).
a

Figure 4-231

3. Remove the screw (a)(M3x8).

4. Slide the upper right cover (b) toward the
machine rear side and detach it.

Figure 4-232

4-141
 2NR/2NS/2NT

IMPORTANT
When reattaching the upper right cover (a),
insert the hook (b) to the machine front side,
and then fasten seven hooks (c) by sliding it
toward the machine front side and insert the
positioning projection (d) into the hole.
c
b

Figure 4-233

5. Open the waste toner cover (a).

6. Press the arm (b) down.
7. Remove the waste toner cover (a).

Figure 4-234

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 2NR/2NS/2NT

8. Push the lever (a) and open the memory a

cover (b).
9. Remove the memory cover (b).

Figure 4-235

10. Lift up the shield cover (a) and pull it

toward you to remove it.

Figure 4-236

11. Open the rear cover (a).

Figure 4-237

4-143
 2NR/2NS/2NT

12. Push the machine front side of the middle

right cover (a) toward the machine rear
side and then lift up its machine rear side
to detach it.

Figure 4-238
IMPORTANT
When reattaching the middle right cover (a),
insert the lower rib into the the lower right
cover (b). Slide it toward the machine front
side to fasten three hooks (c) and then lower it
d
to fasten three hooks (d), and fasten two hooks
(e) at the machine rear side.
Check if three hooks (d) at the machine rear c
side are surely fastened.

d
㸱
1
a
e
b

Figure 4-239

4-144
 2NR/2NS/2NT

13. Remove the network connector cap (a).

Figure 4-240

14. Remove the optional board (b), if

installed.
*:Remove two screws (a)(M3x8), and
detach it.

b
a

Figure 4-241

4-145
 2NR/2NS/2NT

15. Remove four screws (a)(M3x8).

a a

Figure 4-242

16. Remove the network connector (a) by

sliding it toward the machine rear side a
and then remove the controller shield (b).

1
b

Figure 4-243

4-146
 2NR/2NS/2NT

IMPORTANT
If removing the shield cover (b) when removing
the controller shield (a), reattach it at that time.

b
a

Figure 4-244

17. Remove the screw (a)(M3x8).

18. Slide the upper left cover (b) toward the
machine rear side and detach it. d

c
IMPORTANT
When reattaching the upper left cover (b),
insert the hook (c) to the machine front side,
and then fasten seven hooks (d) by sliding it d
toward the machine front side.

a
b

Figure 4-245

4-147
 2NR/2NS/2NT

1. Release two pins (b), and detach the b

upper cover (a) by sliding it toward the
machine front side.
a

Figure 4-246

2. Remove the FFC (b) from the connector

(a) of the Main/Engine PWB. b
Pull out from the opening (c).
b

Figure 4-247

4-148
 2NR/2NS/2NT

3. Remove four screws (a)(M3x8).

a
a

Figure 4-248

4. Disconnect the connector (b) of the eject a

PWB (a).
b

Figure 4-249

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 2NR/2NS/2NT

5. Detach the eject unit (a). Broaden the left a

and right frame of the main unit slightly to
pull out the bosses of the stay of the eject
unit (a) from the holes, and detach the
eject unit (a).

Figure 4-250

35/40 ppm models

Procedures

1. Lift up the machine rear side to remove a

the hook and then remove the upper
cover (a).

Figure 4-251

4-150
 2NR/2NS/2NT

IMPORTANT
When reattaching the upper cover, apply two a
hooks (c). Press the machine rear side and
apply three hooks (b).
c
b

Figure 4-252

2. Disconnect the FFC (a) from the connec-

tor (b) of the Main/Engine PWB and pull it
out from the opening (c). a a

Figure 4-253

4-151
 2NR/2NS/2NT-1

3. Disconnect the connector (a) of the eject

fan motor and release the wire (b) from
five hooks (c). a b
c

Figure 4-254

4. (40ppm model only)

Disconnect the connector (a) of the
duplex fan motor and release the wire (b)
from two hooks (c).

Figure 4-255

4-152
 2NR/2NS/2NT

5. Remove four screws (a)(M3x8). a

6. Lift up the upper stay unit (b), and detach a
it.

Figure 4-256

*:Secure the screws in the order of the

number, when reattaching it.

1
3

4
2

Figure 4-257

4-153
 2NR/2NS/2NT

7. Remove the screw (a)(M3x8).

8. Remove the fuser wire cover (b).
b
d
*:First insert the hook (c) into the opening
(d) and secure the screw.

Figure 4-258

9. Disconnect the connector (b) of the eject a

PWB (a).
b

Figure 4-259

4-154
 2NR/2NS/2NT

10. Detach the eject unit (a).

a

Figure 4-260
IMPORTANT
When reattaching the eject unit (a), insert the d
gear shaft (b) into the hole on the side plate
and two positioning pins (c) into the holes. a
Then, insert the projections (e) into two
square holes (d). d

Figure 4-261

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 2NR/2NS/2NT

(5) Duplex paper conveying unit

(5-1) Detaching and reattaching the duplex paper conveying unit
Procedures
1. Open the rear cover (a).

Figure 4-262

4-156
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2. Pull the conveying stopper (a) toward

the machine right side and rotate it by
using a flat-blade screwdriver (b).
3. Release the hook (c) of the conveying
stopper (a) from the rib (d) and pull the
conveying stopper (a) out.

c
1

Figure 4-263

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4. Slide the duplex paper conveying unit (a)

toward the machine right side.
5. Release the fulcrum part of the duplex
paper conveying unit (a) at the machine
left side, and pull the unit out toward the
machine rear side.
a
1

Figure 4-264

(6) Drive section

(6-1) Detaching and reattaching the main drive motor unit
Procedures
1. Open the rear cover (a).

Figure 4-265

4-158
 2NR/2NS/2NT

2. Remove two screws (a)(M3x8).

3. Slide the upper left cover (b) toward the
machine rear side and detach it.

IMPORTANT d c
When reattaching the upper left cover (b),
insert the hook (c) to the machine front side,
and then fasten seven hooks (d) by sliding it
d
toward the machine front side.

Figure 4-266

4. Lift up the machine rear side of the middle

left cover (a) to release three hooks (b).
5. Slide the middle left cover (a) toward the
machine rear side to release two hooks
(c). c
6. Detach the middle left cover (a).

Figure 4-267

4-159
 2NR/2NS/2NT

IMPORTANT
When reattaching the middle left cover (a),
insert the lower rib into the the lower left d
cover (b). When reattaching it, fasten three 2 c
hooks (c) and four hooks (d) by sliding it
toward the machine front side, and then
lower the machine rear side of it to fasten
three hooks (e).
e

3
1
a

Figure 4-268

4-160
 2NR/2NS/2NT

View of the main drive unit

Figure 4-269

7. Disconnect the connector (b) of the drum

motor 1 (a). Release the wire from the
hook (c).

Figure 4-270

4-161
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8. Disconnect the connector (b) from the

engine relay PWB (a). Release the wire
from eight hooks (d).

Figure 4-271

4-162
 2NR/2NS/2NT

9. Disconnect the connector (b) of the drum

motor 2 (a).
10. Release the wire from two hooks (f) of the a
wire guide (e).
11. Disconnect the connector (d) of the devel-
oper motor (c).
d

b
f
c

Figure 4-272

4-163
 2NR/2NS/2NT

12. Disconnect two connectors from the

engine relay PWB (a).
13. Release the wire from four hooks (c) of
the wire guide (b).

YC3

YC18

Figure 4-273

4-164
 2NR/2NS/2NT

14. Open the top tray (b).

Figure 4-274

15. Detach the toner container Y (a).

Figure 4-275

4-165
 2NR/2NS/2NT

16. Remove the screw (a)(M3x12)

17. Remove the lever cover (b).
18. Lift up the drive release lever (c). a

*:When raising the lever, the joint of the b

drive coupling is released.

IMPORTANT
If omitting to attach the lever cover, [Cover
open] message is displayed while the tray
switch is not turned on.

Figure 4-276

4-166
 2NR/2NS/2NT

19. Remove six screws (a)(M3x8).

20. Detach the main drive motor unit (b).

a
a a

b a
a
a a

a a
a
a
Figure 4-277

*:When detaching the main drive motor

unit (a), pull out the drive release lever (b)
from the drive release joint (c).

21. Check the main drive motor unit and

clean or replace it if necessary.
22. Reattach the parts in the original position.

IMPORTANT a
After reattaching the main drive motor unit (a),
check if the couplings for driving the primary b
transfer unit, the developer unit and the drum
unit are relocated by being connected with the
drive release lever (b).

Figure 4-278

4-167
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IMPORTANT
Attach the main drive motor unit (a) after con-
firming the drive coupling is at the release
position.
(Drive release joint (b) is raised.)

b a

Figure 4-279

Insert the drive release lever (b) into the drive

release joint (c) when reattaching the main
drive motor unit (a).
Do not turn the developer motor (d) in the
reverse direction of the engraving arrow (e).

c
e
Figure 4-280

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(6-2) Detaching and reattaching the paper feed drive unit

Procedures
1. Open the rear cover (a).

Figure 4-281

2. Remove two screws (a)(M3x8).

3. Slide the upper left cover (b) toward the
machine rear side and detach it.

IMPORTANT d c
When reattaching the upper left cover (b),
insert the hook (c) to the machine front side,
and then fasten seven hooks (d) by sliding it
d
toward the machine front side.

Figure 4-282

4-169
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4. Lift up the machine rear side of the middle

left cover (a) to release three hooks (b).
5. Slide the middle left cover (a) toward the
machine rear side to release two hooks
(c). c
6. Detach the middle left cover (a).

Figure 4-283

IMPORTANT
When reattaching the middle left cover (a),
insert the lower rib into the lower left cover d
(b). And, slide it toward the machine front 2 c
side to fasten three hooks (c) and four
hooks (d), then lower the machine rear side
of it to fasten three hooks (e) at the
machine rear side.
e

3
1
a

Figure 4-284

4-170
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7. Remove the screw (a)(M3x8).

8. Pull the rib (b) toward you and release the
center hook (c).
9. Detach the lower left cover (d).

a
e d
e

c d

Figure 4-285

4-171
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IMPORTANT
When attaching the lower left cover (a), insert
two bosses (b) at the machine front side into
1
the holes and apply the center hook (c). Then,
push it toward the machine rear side. After
that, secure the screw.

Check if the hook (c)at center is surely fas- c a

tened.

b
a

Figure 4-286

4-172
 2NR/2NS/2NT

10. Disconnect the connector (b) of the pri-

mary transfer motor (a).
11. Release the wire from four hooks (c).

b a

Figure 4-287

4-173
 2NR/2NS/2NT

12. Disconnect the connectors (b and e) of

the clutch in the paper feed drive unit (a). d
30 ppm model: 5 connectors (b)
35/40 ppm model: 6 connectors (b and e)
13. Disconnect the connector (c) of the motor b
in the paper feed drive unit.
c
14. Release the wire from twelvehooks (d).

d d

e b
a d
Figure 4-288

4-174
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15. Remove three screws (a)(M3x12).

16. Detach the paper feed drive unit (b).
17. Check the paper feed drive unit and clean
or replace it if necessary.
18. Reattach the parts in the original position.

a a

a
b

Figure 4-289

4-175
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(6-3) Detaching and reattaching the MP paper feed drive unit

Procedures
1. Open the rear cover (a).

Figure 4-290

2. Remove two screws (a)(M3x8).

3. Slide the upper left cover (b) toward the
machine rear side and detach it.

IMPORTANT d c
When reattaching the upper left cover (b),
insert the hook (c) to the machine front side,
and then fasten seven hooks (d) by sliding it
d
toward the machine front side.

Figure 4-291

4-176
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4. Lift up the machine rear side of the middle

left cover (a) to release three hooks (b).
5. Slide the middle left cover (a) toward the
machine rear side to release two hooks
(c). c
6. Detach the middle left cover (a).

Figure 4-292

IMPORTANT
When reattaching the middle left cover (a),
insert the lower rib into the lower left cover d
(b). And, slide it toward the machine front 2 c
side to fasten three hooks (c) and four
hooks (d), then lower the machine rear side
of it to fasten three hooks (e) at the
machine rear side.
e

3
1
a

Figure 4-293

4-177
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7. Remove the screw (a)(M3x8).

8. Pull the rib (b) toward you and release the
center hook (c).
9. Detach the lower left cover (d).

a
e d
e

c d

Figure 4-294

4-178
 2NR/2NS/2NT

IMPORTANT
When attaching the lower left cover (a), insert
two bosses (b) at the machine front side into
1
the holes and apply the center hook (c). Then,
push it toward the machine rear side. After
that, secure the screw.

Check if the hook (c) at center is surely fas- c a

tened.

b
a

Figure 4-295

10. Open the top tray (b).

Figure 4-296

4-179
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11. Open the MP tray (a).

12. Remove two screws (b)(M3x8). b
13. Open the waste toner cover (c).
b

Figure 4-297

14. Slightly lift up the front cover (a) to b

release the boss (b). b
15. Tilt the front cover (a) toward the machine
front side.
16. Then, remove the front cover (a) by lifting
it up.

Figure 4-298

4-180
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IMPORTANT a
Make sure not to touch the waste toner cover
sensor (b) when reattaching the front cover (a).
If the waste toner cover sensor (b) comes off, b
even if you close the waste toner cover, [cover
open] will be displayed.

Figure 4-299

17. Pull out the cassette (a).

18. Open the MP tray (b) slightly.
19. Lift up the MP tray cover (c) and release
b
two hooks (d).

c
Figure 4-300

4-181
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20. Fully open the MP tray (a).

21. Slide the arm (b) to the machine rear side
and lift it up to remove. b

Figure 4-301

22. Rotate the cam (a) inside the main unit to

the position in the figure.

Figure 4-302

4-182
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23. Disconnect eight connectors (b) from the

engine relay PWB (a).

YC12 YC16

YC10

a
YC5

YC4

YC6
YC22

YC23

Figure 4-303

4-183
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24. Release the wire (b) from five hooks (a). b

Figure 4-304

25. Remove two screws (a)(M3x12).

26. Lift up the MP paper feed drive unit (b) to
release the lower two hooks (c).
27. Detach the MP paper feed drive unit (b).
28. Check the MP paper feed drive unit and
clean or replace it if necessary.
29. Reattach the parts in the original position.

Figure 4-305

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(6-4) Detaching and reattaching the toner motor unit

Procedures
1. Open the rear cover (a).

Figure 4-306

2. Remove two screws (a)(M3x8).

3. Slide the upper left cover (b) toward the
machine rear side and detach it.

IMPORTANT d c
When reattaching the upper left cover (b),
insert the hook (c) to the machine front side,
and then fasten seven hooks (d) by sliding it
d
toward the machine front side.

Figure 4-307

4-185
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4. Lift up the machine rear side of the middle

left cover (a) to release three hooks (b).
5. Slide the middle left cover (a) toward the
machine rear side to release two hooks
(c). c
6. Detach the middle left cover (a).

Figure 4-308

IMPORTANT
When reattaching the middle left cover (a),
insert the lower rib into the lower left cover d
(b). And, slide it toward the machine front 2 c
side to fasten three hooks (c) and four
hooks (d), then lower the machine rear side
of it to fasten three hooks (e) at the
machine rear side.
e

3
1
a

Figure 4-309

4-186
 2NR/2NS/2NT

7. Remove the screw (a)(M3x8).

8. Pull the rib (b) toward you and release the
center hook (c).
9. Detach the lower left cover (d).

a
e d
e

c d

Figure 4-310

4-187
 2NR/2NS/2NT

IMPORTANT
When attaching the lower left cover (a), insert
two bosses (b) at the machine front side into
1
the holes and apply the center hook (c). Then,
push it toward the machine rear side. After
that, secure the screw.

Check if the hook (c) at center is surely fas- c a

tened.

b
a
Figure 4-311

10. Detach the main drive motor unit (a). (1-4-158Refer to page 1-6-58)

11. Disconnect the connector (b) of the tray b

switch (a).
12. Release the wires of the eject motor (d)
and the fuser motor (e) from three hooks
(c).
13. Disconnect the connector (g) of the con-
tainer fan motor (f).

f
d a

g
e

Figure 4-312

4-188
 2NR/2NS/2NT

14. Release the wire from three hooks (a) of a

the toner motor unit (a).

Figure 4-313

15. Release the hook (b) of the cleaner

spring (a).

Figure 4-314

4-189
 2NR/2NS/2NT

16. Open the top tray (b).

Figure 4-315

17. Relocate the cleaner slider (a) to the cen- 1

ter of the rail (b).
18. Insert a flat-blade screwdriver (c) from the
square hole.
19. Lift up the hook (d) to release.
20. Remove the cleaner slider (e) while rotat-
ing it.
a

d
a
2
c

Figure 4-316

4-190
 2NR/2NS/2NT

21. Remove the cleaner film (b) through the

gap of the ribs (a).

Figure 4-317

4-191
 2NR/2NS/2NT

22. Remove four screws (b)(M3x8) from the

toner motor unit (a).

b
b
a
b

b a
b

Figure 4-318

4-192
 2NR/2NS/2NT

23. Release eight hooks (a).

24. Detach the toner motor unit (b).
*:Check the triangle engravings (c) as for
the position of the three inside hooks.

a
a

a
a

Figure 4-319 a

4-193
 2NR/2NS/2NT

(6-5) Detaching and reattaching the toner motor

Procedures
1. Remove the tension spring (a). a
*:Take care not to lose the spring.

Figure 4-320

2. Release the tension arm (a) to loosen the

tension..
3. Remove the belt (b).
b

Figure 4-321

4-194
 2NR/2NS/2NT

4. Release six hooks (a).

5. Remove the toner motor cover (b). b

Figure 4-322

6. Disconnect the connector (a) of each a

toner motor. a a
a

Figure 4-323

4-195
 2NR/2NS/2NT

7. Release each set of two hooks (a). b

8. Remove four toner motors (b).

b
a

Figure 4-324

IMPORTANT c
Apply one drop of grease (d)(EM-50LP) on the
gear surface when attaching the new motor.
Insert the boss (c) to the positioning hole (b) of
the toner motor (a) and reattach it.
b

Figure 4-325

4-196
 2NR/2NS/2NT

IMPORTANT
Reattach the drive cam (b) if coming off when
reattaching the toner motor unit (a).
Check if the drive cam (b) gear is meshed with
the lock lever (c) gear when reattaching the
toner motor unit (a).
*:Drive can not be released without the
drive cam.

Figure 4-326

(6-6) Detaching and reattaching the lift motor

Procedures
1. Open the rear cover (a).

Figure 4-327

4-197
 2NR/2NS/2NT

2. Remove two screws (a)(M3x8).

3. Slide the upper left cover (b) toward the
machine rear side and detach it.

IMPORTANT d c
When reattaching the upper left cover (b),
insert the hook (c) to the machine front side,
and then fasten seven hooks (d) by sliding it
d
toward the machine front side.

Figure 4-328

4. Lift up the machine rear side of the middle

left cover (a) to release three hooks (b).
5. Slide the middle left cover (a) toward the
machine rear side to release two hooks
(c). c
6. Detach the middle left cover (a).

Figure 4-329

4-198
 2NR/2NS/2NT

IMPORTANT
When reattaching the middle left cover (a),
insert the lower rib into the lower left cover d
(b). And, slide it toward the machine front 2 c
side to fasten three hooks (c) and four
hooks (d), then lower the machine rear side
of it to fasten three hooks (e) at the
machine rear side.
e

3
1
a

Figure 4-330

7. Remove the screw (a)(M3x8).

8. Pull the rib (b) toward you and release the
center hook (c).
9. Detach the lower left cover (d).

a
e d
e

c d

Figure 4-331

4-199
 2NR/2NS/2NT

IMPORTANT
When attaching the lower left cover (a), insert
two bosses (b) at the machine front side into
1
the holes and apply the center hook (c). Then,
push it toward the machine rear side. After
that, secure the screw.

Check if the hook (c) at center is surely fas- c a

tened.

b
a

Figure 4-332

4-200
 2NR/2NS/2NT

10. Disconnect all the connectors and FFCs

from the engine relay PWB (a).
30 ppm model: 23 connectors
35/40 ppm model: 24 connectors
(YC27: used in only 35/40 ppm model)

YC20 YC13 YC12 YC16

YC14 YC3

YC18
YC8 YC26
YC2

YC15 YC25 YC10

YC5
YC1
YC7 YC4

YC19
YC6
YC22
YC27

1
YC23

YC21 YC24 2

Figure 4-333

11. Remove three screws (a)(M3x8).

12. Detach the engine relay PWB (b).

a b
Figure 4-334

4-201
 2NR/2NS/2NT

13. Disconnect the connector (b) of the lift

motor (a).
14. Release the wire from ten hooks (c).

c b
Figure 4-335

4-202
 2NR/2NS/2NT

15. Release four hooks (a).

16. Remove the rear left duct (b).

Figure 4-336

17. Release two hooks (a).

18. Remove the lift motor (b).
19. Check the lift motor and clean or replace
it if necessary.
20. Reattach the parts in the original position.

b
Figure 4-337

4-203
 2NR/2NS/2NT

IMPORTANT
Apply one drop of grease (EM-50LP) on the
gear surface when attaching the new motor
(a).

Figure 4-338

Insert the boss (c) to the positioning hole (b) of b

the lift motor (a) and reattach it.

a
c

Figure 4-339

4-204
 2NR/2NS/2NT

Attach the lift motor (a) after confirming it is not

run over the rib (b).

Figure 4-340

4-205
 2NR/2NS/2NT

(7) Operation panel

(7-1) Detaching and reattaching the language sheet
30 ppm models
Procedures
1. Insert a flat-blade screwdriver (a) into
the square hole (c) of the panel fixing
plate (b) and remove it by lifting it up.
c
a

Figure 4-341

2. Remove the operation panel cover (a).

3. Replace the operation panel sheet (b)
with the ones in the supported language.
4. Reattach the parts in the original position.
a

Figure 4-342

4-206
 2NR/2NS/2NT

35 ppm models
Procedures
1. Insert a flat-blade screwdriver (a) into
the square hole (c) of the panel fixing
plate (b) and remove it by lifting it up.
c
a

Figure 4-343

2. Remove the operation panel cover (a).

3. Replace the operation panel sheet (b)
with the ones in the supported language.
4. Reattach the parts in the original position.
a

Figure 4-344

4-207
 2NR/2NS/2NT-1

(8) Fan motor

(8-1) Attaching direction
IMPORTANT
When reattaching the fan motor, be aware of the attachment direction (in-take/exhaust).
30 ppm models

b
Figure 4-345
35/40 ppm models

e g

b
Figure 4-346

a. Container fan motor: in-take (rating label: inside)

b. LSU fan motor 1: in-take (rating label: inside)
c. LSU fan motor 2: in-take (rating label: inside)
d. Power source fan motor: in-take (rating label: inside)
e. Eject fan motor (35/40 ppm models only): in-take (rating label: inside)
f. Transfer fan motor: in-take (rating label: inside)
g. Duplex fan motor (40 ppm models only): in-take (rating label: inside)

4-208
 2NR/2NS/2NT

4-7 Disassembly and reassembly procedures of the paper

feeder (option)
(1) Detaching and reattaching the retard roller unit and feed roller unit
(1-1) Detaching and reattaching the retard roller unit
<Procedure>
1. Open the PF rear cover (a).

Figure 4-347

4-209
 2NR/2NS/2NT-1

2. Release the hook (a) using a flat-blade

screwdriver (d).
a
3. Remove the retard guide (c).

c a

Figure 4-348

4. Remove the retard roller unit (a).

5. Check the retard roller unit and clean or
replace it if necessary.
6. Reattach the parts once removed.

IMPORTANT
Install the cassette first when attaching the
retard roller unit. The retard pressure release
lever must be located at the machine front side
2 1
from the retard roller unit to apply appropriate
pressure.
a

Figure 4-349

4-210
 2NR/2NS/2NT

(2) Detaching and reattaching the paper feed roller unit

<Procedure>
1. Remove the cassette (a) from the paper
feeder (b).

2. Remove the retard roller unit (d).

b
a

Figure 4-350

3. Place the paper feeder (a) while turning it a

over.

Figure 4-351

4-211
 2NR/2NS/2NT

4. Push the lock lever (a). 1

5. Slide the feed roller pin (b) straight and
release the lock.

a 2

Figure 4-352

6. Push the lock lever (a). b

7. Detach the paper feed roller unit (b).
8. Check the paper feed roller or pick up
a
roller and clean or replace it if necessary.
9. Reattach the parts once removed.

Figure 4-353

4-212
 2NR/2NS/2NT

(3) Detaching and reattaching the PF main PWB

<Procedure>
1. Remove the cassette (a) from the paper
feeder (b).

b
a

Figure 4-354

2. Place the paper feeder (a) while turning it a

over.

Figure 4-355

4-213
 2NR/2NS/2NT

3. Release two hooks (b) of the PWB c

cover (a) using a flat-blade screwdriver
(c).

b a

Figure 4-356

4. Detach the PWB cover (a). a

Figure 4-357

4-214
 2NR/2NS/2NT

5. Remove the actuator (a) and spring (b). b

Figure 4-358

4-215
 2NR/2NS/2NT

6. Disconnect all the connectors from the

PF main PWB (a). (10 connectors)
*:YC10 connector is not used.
YC1
YC14
YC5
TB1
YC3
YC7

YC9 YC6 YC2

YC4
YC10

Figure 4-359

4-216
 2NR/2NS/2NT

7. Push the lock lever (a).

b
8. Lift up the feed roller unit (b) to releasse a
the lock.

Figure 4-360

9. Remove the screw (a) (M3x8).

a

Figure 4-361

4-217
 2NR/2NS/2NT

10. Remove four hooks (a) and then b

remove the PF main PWB (b).
11. Check the PF main PWB and clean or
replace it if necessary.
12. Reattach the parts once removed.

Figure 4-362

4-218
 2NR/2NS/2NT

(4) Detaching and reattaching the PF drive unit

<Procedure>
1. Remove the cassette (a) from the paper
feeder (b).

b
a

Figure 4-363

2. Remove eight screws (a)(M3x10) a 1

a 4
a 2
IMPORTANT a 5
Secure the screws in the order of the num- a 8

bers. a 3

a 6
a 7

Figure 4-364

4-219
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3. Place the paper feeder (a) while turning it a

over.

Figure 4-365

4. Release two hooks (b) of the PWB c

cover (a) using a flat-blade screwdriver
(c).

b a

Figure 4-366

4-220
 2NR/2NS/2NT

5. Detach the PWB cover (a). a

Figure 4-367

6. Remove the actuator (a) and spring (b).

b

Figure 4-368

4-221
 2NR/2NS/2NT

7. Disconnect nine connectors (b) from

the PF main PWB (a).
YC1
YC1 to YC7, YC9, TB1
YC14 YC5
TB1
YC3
YC7

YC9 YC6 YC2

YC4
YC10

b
a

Figure 4-369

8. Remove the wire (a) from the hook (b).

a
a

b b
b

Figure 4-370

4-222
 2NR/2NS/2NT-1

9. Place the paper feeder while turning it

over. Release the hook (a) using a flat- b
blade screwdriver (b).

Figure 4-371

10. Place the paper feeder while turning it

over. Release the hook (a) using a flat- b
blade screwdriver (b).
*:Release it while widening the cover with a flat-blad screwdriver.

Figure 4-372

4-223
 2NR/2NS/2NT

11. Lift up the paper feeder (b) and remove

the upper cover (a).

Figure 4-373

12. Push the lock lever (a). 1

13. Slide the feed roller pin (b) straight and
release the lock.

a 2

Figure 4-374

4-224
 2NR/2NS/2NT

14. Push the lock lever (a). b

15. Detach the paper feed roller unit (b).
a

Figure 4-375

16. Slide the feed roller drive pin (a) and

release it from the drive joint (b).

Figure 4-376

17. Remove two screws (a) (M3x8). a

Figure 4-377

4-225
 2NR/2NS/2NT-1

18. Release the hook (a) with a flat-blade

screwdriver (b) and remove the PF
drive unit (c). c
19. Check the PF drive unit and clean or
replace it if necessary.
20. Reattach the parts once removed.

Figure 4-378

a
IMPORTANT
Before attaching the top cover (a), confirm
the ground spring (b) is inserted in the hole
on the main unit.
Attach the spring with its projection facing down.

b
Figure 4-379

4-226
 2NR/2NS/2NT

5 Firmware
5-1 Firmware Updates

Perform the following to update the firmware below.

Target firmware name Master file name Message
Optional language data for the controller DL_OPT.2NR(30 ppm models OPT
DL_OPT.2NT (35/40 ppm models)
Controller firmware DL_CTRL.2NR (30 ppm models) CTRL
DL_CTRL.2NS (35 ppm models)
DL_CTRL.2NT (40 ppm models)
First color table data DL_PCLT1.2NW CLT1
Second color table data DL_PCLT2.2NW CLT2
Firmware for the first PF (paper feeder) DL_03PK.2PC PF1
Firmware for the second PF (paper feeder) PF2
Firmware for the third PF (paper feeder) PF3
Engine firmware DL_ENGN.2PC ENGN

Preparations
Unzip the file containing the downloaded firmware and then copy the firmware and high-speed master file
(skip files: ES_SKIP.ON) in the root folder of the USB memory.

*: If the high-speed master file exists, the same version firmware update is skipped.

Procedures
1. After turning the power switch on, the
screen is properly displayed and then
turn the power switch off.
2. Insert the USB memory with the firmware
into the USB memory slot.
3. Turn the power switch on.
4. "FW-Update" is displayed and the firm-
ware update starts.
USB memory
slot

USB memory

Figure 5-1

5-1
 2NR/2NS/2NT

During the firmware upgrade, the progress indicator shows the firmware names and the progress.
Display sample
First line: Displays "FW-Update". FW-Update
Second line: Progress indicator of the firm-
ware update.

5. After the firmware update is successful, the first page displays the completion message and the
following pages display the target firmware and the updated version.
First page
First line: Displays "FW-Update", (page FW-Update 1/9
number/total number of pages). Completed
Second line: Displays "Completed". (Com-
pletion message)

Second page and later

First line: Displays "CTRL", (the target firm- [CTRL] 2/9
ware), (page number/total number of 2NR_2000.001.005
pages), the up and down key icon.
Second line: Displays the target firmware and the updated version.

*: When there is no corresponding master

file, "No Change" is displayed. [ENGN] 9/9
No Change
*: "----------"is displayed when the option
equipment, etc. is not installed. [PF1] 6/9
----------

*: "*" is displayed after the target firmware

that has been skipped. [CTRL] 2/9
2NR_2000.001.005

6. Check if the new firmware versions are displayed.

7. Unplug the power cord and disconnect the USB memory.
8. After plugging in the power cord, check that the screen is displayed and then turn the power switch off.

Never turn the power switch off or disconnect the USB memory during the firmware update.

If any errors appear during the firmware update (such as the file can not be read), the process is can-
celled immediately and the completion message is displayed.

First page
First line: Displays "FW-Update", (page FW-Update 1/9
number/total number of pages), the up and Error
down key icon.
Second line: Displays "Error".

Second page and later

First line: Displays "ENGN", (the target [ENGN] 9/9
firmware), (page number/total number of Error 0100
pages), the up and down key icon.
Second line: Displays "Error", the error code

5-2
 2NR/2NS/2NT-1

Safe-Update
When the firmware update was interrupted by power shut-off or disconnecting the USB memory during the
firmware update, the firmware update is retried at the next power-on.
Turn the main power on again while the USB memory is installed.
*: The firmware update that was already completed before power shut-down is skipped.

Error code
No. Descriptions
0100 No Master file
0200 Version mismatch of the master file
03xx No Download File (No.xx)
04xx File (No.xx) Checksum mismatch
05xx File (No.xx) Preparation failure
06xx File (No.xx) Oversize
08xx File (No.xx) Writing failure
0000 Others
N001 Network connection failed. (There is no upgrade target interrupted)
N002 Network connection failed. (There is an upgrade target interrupted)

Emergency-Update
When the firmware update fails in Safe-Update, the following message or error code is displayed.

FW-Update
Error FFFF

Update the firmware after the machine is recovered in the following procedures.

Preparations
Format the USB memory in "FAT" or "FAT32" in advance.
Unzip the compressed file downloaded containing the firmware for the controller PWB.
Copy all the unzipped files in the root folder of the USB memory.
e.g.
Removable disk (E)
+- DL_CTRL.2NR*
+- uImage.kmmfp
+- 2nt.dtb
+- rootdiskimage.bin
└- appdiskimage.bin

* :30 ppm models

35 ppm models: DL_CTRL.2NS
40 ppm models: DL_CTRL.2NT

Rename the unzipped files.

Rename "DL_CTRL.2NR" "KM_EMRG.2NR": 30 ppm models
Rename "DL_CTRL.2NS" "KM_EMRG.2NS": 35 ppm models
Rename "DL_CTRL.2NT" "KM_EMRG.2NT": 40 ppm models

5-3
 2NR/2NS/2NT

Procedures
1. Unplug the power cord.
2. Insert the USB memory with the firmware
into the USB memory slot.
3. Plug the power cord into the wall outlet
and turn the power switch on.

USB memory
slot

USB memory

Figure 5-2

4. Restoration of the firmware updtate for Emergency Update

the PWB starts.
“Emergency Update” is displayed on the
operation panel.

5. When rewriting is successful, “Com- Emergency Update

pleted” is displayed.
Completed

6. Unplug the power cord and disconnect the USB memory from the USB memory slot.
7. Unzip the file containing the downloaded firmware and then copy the firmware and high-speed master
file (skip files: ES_SKIP.ON) in the root folder of the USB memory.
8. Execute the normal firmware update.

*:When rewriting fails, “Failed” is dis- Emergency Update

played.
Failed

5-4
 2NR/2NS/2NT

If any errors appear during the firmware update, the process is cancelled and the error message is displayed
on the operation panel. Redo after checking the following contents in that case.

Error code
No. Descriptions
1 Check if the USB memory is properly installed.
2 Check if the management file "KM_EMRG.XXX" is generated from the offi-
cial master file "DL_CTRL.XXX".
3 Check if the contents in the USB memory are sufficient.
4 Execute the firmware update again after formatting the USB memory.

5-5
 2NR/2NS/2NT

This page is intentionally left blank.

5-6
 2NR/2NS/2NT

6 Service mode
6-1 Service mode
The machine is equipped with a maintenance function which can be used to maintain and service the
machine.

(1) Executing the service mode (30/35 ppm models)

30 ppm models

[Message Display]
Ready to print

1. Press the Menu Key.

Report print
USB Memory
Job Box
Counter
Paper settings
Print settings 4. Select [Service]
Network using the cursor up/down keys.
Device common 5. Press the “>” key.
Security Quiet Mode
User/Job Account Color Calibration
Aplication
Registration
Administrator
Normal 6. Select the setting item.
Adjust/Maintenance Restart Printer
Print Status Page
Service
Print Network Status Page

Print Op Network Status Page

2. Select [Adjustment/Maintenance] Print Test Page
using the cursor up/down keys. Write Data
3. Press the “>” key. Maintenance

DEV-CLN
LSU
Drum
Altitude Adj.
MC

6-1
 2NR/2NS/2NT

35 ppm models

[Message Display]

Ready to print

1. Press the Menu Key.

Menu:
Report
Counter
Paper settings

Print settings
Network
Device common

Security
User/Job Account 4. Select [Service Setting]
Aplication using the cursor up/down keys.
5. Press the OK key.
Adjust/Maint. Adjust/Maint.:
Op Functions
Quiet Mode
ColorCalibration
Color Regist.

Restart 6. Select the setting item.

2. Select [Adjustment/Maint.]
using the cursor up/down keys. Service Setting Service Setting:
3. Press the OK key. Service Status
Network Status
Op Netwk Status

Test Page
Maintenance
DEV-CLN
Drum
LSU
Write Data

Altitude Adj.
MC

6-2
 2NR/2NS/2NT

Service setting

Items Contents page

Status Pages Printing a service status page. P.6-4
Network Status Printing a network status page. P.6-12
OP Network status Printing an OP Network status page. P.6-12
Test Page The test page is printed with halftones. P.6-13
Write Data To write data into a USB memory. P.6-14
Maintenance Counter reset for the maintenance kit P.6-14
DEV-CLN Perform developer refreshing. P.6-15
LSU Clean the LSU dust shield glass. P.6-16
Drum Clean the drum surface. P.6-16
Altitude Adjustment Perform the altitude Adjustment Setting. P.6-16
MC Sets the main charger output. P.6-17

6-3
 2NR/2NS/2NT

(2) Descriptions of service modes

Print Status Page

Description
Printing a service status page. The status page includes various settings and service data.
Purpose
This is used to retrieve the setting environment information and service data.

Method
1.Enter the Service Setting menu.
2.Select [Service Status Page].
3.Press the [OK] key.
4.Press the [OK] key. (30 ppm models)
By the left selection key, select [Yes]. (35 ppm models)
5.Service status page will be printed.

Completion
Press the [Menu] key. (30 ppm models)
By the right selection key, select [Exit]. (35 ppm models)

6-4
 2NR/2NS/2NT

Detail of service status page (1)

Service Status Page

Printer (2) 2014/10/31 12:00
(3) (4) (5)
(1) Firmware Version 2NT_2000.001.062 2014.10.27 [XXXXXXXX] [XXXXXXXX] [XXXXXXXX]

Controller Information
Memory status
(7) Standard Size 512MB
(8) Option Slot 0 MB
.
(9) Total Size 512MB
.
Time .
(10) Local Time Zone +01:00Amsterdam .
(11) Date and Time 2014/10/27 12:00 .
(12) Time Server 10.183.53.13 .
Installed Options .
(13) Paper Feeder2: Installed .
(14) Paper Feeder3: Not Installed .
(15) Paper Feeder4: Not Installed .
(16) Memory Card Not Installed .
(17) SSD Installed .
(18) Card Authentication Kit (B) Installed .
(19) Security Kit (E) Installed .
(20) UG-33 Installed .
(21) USB Keyboard Installed .
(22) USB Keyboard Type .
US-English
.
Print Settings
(23) MP Tray Priority Auto Feed .
.
Print Coverage .
(24) Average(%) / Usage Page(A4/Letter Conversion) .
.
(25) Total
.
K: 1.10 / 1111111.11 .
C: 2.20 / 2222222.22 .
M: 3.30 / 3333333.33 PDF mode Y5 00
Y: 4.40 / 4444444.44
(29) RP Code
(26) Period (27/10/2009 - 03/1 1/2009 08:40) 1234 5678 9012
(27) Last Page (%) 1.00 5678 9012 3456
9012 3456 7890
3456 7890 1234
(30) Altitude Adjustment
Status Normal

(28) FRPO Status

User Top Margin A1+A2/100 0.00
User Left Margin A3+A4/100 0.00

1 (6) [XXXXXXXXXX]

Figure 6-1

6-5
 2NR/2NS/2NT

Detail of service status page (2)

Service Status Page

Printer 2014/10/31 12:00

Firmware Version 2NT_2000.001.062 2014.10.27 [XXXXXXXX] [XXXXXXXX] [XXXXXXXX]

Engine Information Send Information

(31) NVRAM Version _CI04709_CI04709 (33) Date and Time 12/10/27
(32) MAC Address 00:C0:EE:D0:01:0D (34) Address

1/2 (35) (36)

(37) 100/100
(38) 0/0/0/0/0/0
(39) 0/0/0/0/0/0
(40) 0/0/0/0
(41) 0000000/0000000/0000000/0000000/0000000/0000000/0000000/
0000000/0000000/0000000/0000000/0000000/0000000/0000000/0000000/0000000/0000000/0000000/0000000/0000000/0000000/0000000/
F00/U00/0/0/0/0/30/30/70/70/abcde/1/0/1/ (42) (43) (44) (45) (46) (47) (48) (49) (50) (51) (52) (53) (54) (55) (56)
(57) 0000/0000/0000/0000/0000/0000/0000/0000/0000/0000/0000/0000/0000/0000/0000/
0000/0000/0000/0000/0000/0000/0000/0000/0000/0000/
(58) 0000/0100/0500/1000/0000/0100/0500/1000/0000/0100/0500/1000/0000/0100/0500/1000/
0000/0100/0500/1000/0000/0100/0500/1000/0000/0100/0500/1000/0000/0100/0500/1000/
(59) 0000000000000000/0000000000000000/0000000000000000/0000000000000000/0000000000000000/0000000000000000/000000000000/
0000000000000000/0000000000000000/0000000000000000/
(60) 0000000000000000/0000000000000000/0000000000000000/0000000000000000/00000000/
(61) 0000000000000000/0000000000000000/0000000000000000/
(62) 0000000000000000/0000000000000000/0000000000000000/0000000000000000/0000000000000000/0000000000000000/
(63) 0000000000000000/0000000000000000/0000000000000000/0000000000000000/0000000000000000/0000000000000000/000000000000/
(64) 0000000000000000/0000000000000000/0000000000000000/0000000000000000/0000000000000000/0000000000000000/000000000000/
(65) 0000000000000000/0000000000000000/0000000000000000/0000000000000000/0000000000000000/0000000000000000/000000000000/
(66) 0000000000000000/0000000000000000/0000000000000000/
(67) 0000000000000000/0000000000000000/0000000000000000/0000000000000000/0000000000000000/0000000000000000/
(68) 0000000000000000/0000000000000000/0000000000000000/0000000000000000/0000000000000000/0000000000000000/000000000000/
(69) 0000000000000000/0000000000000000/0000000000000000/0000000000000000/0000000000000000/0000000000000000/000000000000/
(70) 12345678/11223344/00001234abcd567800001234abcd5678/01234567890123456789012345678901/0008/00/07
12345678/11223344/00001234abcd567800001234abcd5678/01234567890123456789012345678901/0008/00/07
12345678/11223344/00001234abcd567800001234abcd5678/01234567890123456789012345678901/0008/00/07
12345678/11223344/00001234abcd567800001234abcd5678/01234567890123456789012345678901/0008/00/07
(71) [ ][ ][ ]
[ABCDEFGHIJ][ABCDEFGHIJ][ABCDEFGHIJ] (72) (73) (74)
(75) 00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/0
00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/0

00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/0
00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/0
00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/0
00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/0
00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/0
00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/00070107FE/0
00070107FE/

(76) 3/
0/1.0/2.5 (77) (78) (79)
1/0/1/1/ 2014/10/15 12:34:56 (80)
1/5/ (81)(82)
1/ (83)
0/15:47 (84) (85)
1/ (86)
ABCDEFGHIJKL/ABCDEFGHIJKL/ABCDEFGHIJKL/ABCDEFGHIJKL/ (87)
ABCDEFGHIJKL/ABCDEFGHIJKL/ABCDEFGHIJKL/ABCDEFGHIJKL/ (88)

2 [XXXXXXXXXX]

6-6
 2NR/2NS/2NT

No. Items Contents

(1) Firmware Version -
(2) System date -
(3) Engine software version -
(4) Engine boot version -
(5) Operation panel software version -
(6) Machine serial number -
(7) Standard memory size
(8) Optional memory size
(9) Total memory size -
(10) Local Time Zone -
(11) Report output date Day/Month/Year hour:minute
(12) NTP server name -
(13) Presence or absence of the optional Installed/Not Installed
paper feeder 2
(14) Presence or absence of the optional Installed/Not Installed
paper feeder 3
(15) Presence or absence of the optional Installed/Not Installed
paper feeder 4
(16) Presence or absence of the optional Installed/Not Installed
memory card (SD)
(17) Presence or absence of the optional Installed/Not Installed
SSD
(18) Presence or absence of the optional Installed/Not Installed/Trial
Card Authentication Kit
(19) Presence or absence of the optional Installed/Not Installed
Security Kit(E)
(20) Presence or absence of the optional Installed/Not Installed/Trial
UG-33
(21) The connection state of the optional Connected/Not Connected
USB Keyboard
(22) Type of the USB keyboard US-English/US-English with Euro symbol
(23) MP tray priority setting Off/Auto/Always
(24) Page count converted to the A4/Letter Print Coverage provides a close-matching reference of
size toner consumption and will not match the actual toner
consumption.
(25) Average coverage for total Black/Cyan/Magenta/yellow
(26) Cleared date and output date -
(27) Coverage on the last output page -
(28) FRPO setting -

6-7
 2NR/2NS/2NT

No. Items Contents

(29) RP code Code the engine software version and the date of the lat-
est update.
Code the main software version and the date of the latest
update.
Code the engine software version and the date of the pre-
vious update.
Code the main software version and the date of the previ-
ous update.
(30) Altitude Adjustment Normal/1001-2000m/2001-3000m/3001-3500m
(31) NVRAM version _ 1F3 1225 _ 1F3 1225
(a)(b)(c)(d)(e)(f)
(a) Consistency of the present software version and the
database
_ (underscore): OK
* (Asterisk): NG
(b) Database version
(c) The oldest time stamp of database version
(d) Consistency of the present software version and the
ME firmware version
_ (underscore): OK
* (Asterisk): NG
(e) ME firmware version
(f) The oldest time stamp of the ME firmware version
Normal if (a) and (d) are underscored, and (b) and (e) are
identical with (c) and (f).
(32) Mac address -
(33) The last sent date and time -
(34) Transmission address -
(35) Destination information -
(36) Area information -
(37) Margin setting Top margin/Left margin
(38) Top offset for each cassette MP tray Top offset/Paper feeder 2 Top offset/Paper
feeder 3 Top offset/Paper feeder 4 Top offset/Duplex Top
offset/Rotation copy Top offset

(39) Left offset for each cassette MP tray Left offset/Paper feeder 2 Left offset/Paper
feeder 3 Left offset/Paper feeder 4 Left offset/Duplex Left
offset/Rotation copy Left offset

(40) L value Top margin integer part/Top margin decimal part/Left mar-
gin integer part /Left margin decimal part

6-8
 2NR/2NS/2NT-1

No. Items Contents

(41) Life counter (The first line) Machine life/MP tray/Paper feeder 1/Paper feeder 2/
Paper feeder 3/Paper feeder 4/Duplex
Life counter (The second line) Drum unit K/Drum unit C/Drum unit M/Drum unit Y/Pri-
mary transfer unit/Secondary transfer unit/Developer unit
K/Developer unit C/Developer unit M/Developer unit Y/
Main charger unit K/Main charger unit C/Main charger
unit M/Main charger unit Y/Fuser unit/Maintenance kit
(42) Panel lock information F00: OFF
F01: Partial lock1
F02: Partial lock2
F03: Partial lock3
F04: Full lock
(43) USB information U00: Not Connected
U01: Full speed
U02: Hi speed
(44) Paper handling information 0: Paper source unit select
1: Paper source unit fix
(45) Auto cassette change 0: OFF
1: ON (Default)
(46) Color printing double count mode 0: All single counts
3: Folio (Less than 330mm length), Single counts
(47) Black and white printing double count 0: All single counts
mode 3: Folio (Less than 330mm length), Single counts
(48) Billing counts timing 0: When secondary paper feed starts
1: When the paper is ejected
(49) Temperature (machine inside) -
(50) External temperature -
(51) Relative humidity (machine outside) -
(52) Absolute humidity (machine outside) -
(53) Asset Number -
(54) Job end judgment time-out time -
(55) Job end detection mode 0: Detects as one job, even if contained multiple jobs
1: Detects as individual job, dividing multiple jobs at a
break in job
(56) Prescribe environment reset 0: Off
1: On
(57) Media type attributes Weight settings Fuser settings
1 to 28 (Not used: 18, 19, 20) 0: Light 0: High
1: Normal 1 1: Middle
*: For details on settings, refer to 2: Normal 2 2: Low
MDAT command in "Prescribe 3: Normal 3 3: Vellum
Commands Reference Manual". 4: Heavy 1
5: Heavy 2 Duplex settings
6: Heavy 3 0: Disable
9: Extra Heavy 1: Enable

6-9
 2NR/2NS/2NT

No. Items Contents

(58) IO Calibration information K/C/M/Y
(59) Bias Calibration information -
(60) Sensor initial information -
(61) Calibration information -
(62) Calibration information -
(63) Calibration information -
(64) Calibration information -
(65) Calibration information -
(66) Paper loop correction shift amount -
(67) Paper loop correction interval -
(68) Paper loop correction patch amount -
(69) Calibration information -
(70) RFID information?K,C,M,Y? -
(71) Software version of the optional paper -
feeder
(72) Optional message version -
(73) Color table version for printer -
(74) Color table 2 version for printer -
(75) Maintenance information -
(76) MC correction 1 to 7
(77) Configuring the toner coverage coun- 0: Full-color count display
ters 1: Color coverage count display
(78) Low coverage setting 0.1 to 100.0
(79) Middle coverage setting 0.1 to 100.0
(80) Data sanitization information Main Memory/SSD/Performed time
1: Success
0: Fail
- : Not performed or Not installed
(81) Toner low setting 0: Disabled
1: Enabled
(82) Toner low detection level 5 to 100 (%)
(83) Full-page print mode 0: Normal mode (Factory setting)
1: Full-page mode
(84) Wake-up mode 0: Off (Don't wake up)
1: On (Do wake up)
(85) Wake-up timer Displays the wake-up time
(86) BAM conformity mode setting 0: Un-suiting Mode
1: Conformity Mode
(87) Drum serial number Black/Cyan/Magenta/yellow
(88) Developer serial number Black/Cyan/Magenta/yellow

6-10
 2NR/2NS/2NT

No. Items Contents

Code conversion

A B C D E F G H I J
0 1 2 3 4 5 6 7 8 9

6-11
 2NR/2NS/2NT

Network Status

Description
Printing a network status page.
Purpose
To acquire the detailed network setting information.

Method
1.Enter the Service Setting menu.
2.Select [NW Status].
3.Press the [OK] key.
4.Press the [OK] key. (30 ppm models)
By the left selection key, select [Yes]. (35 ppm models)
5.Network status page will be printed.

Completion
Press the [Menu] key. (30 ppm models)
By the right selection key, select [Exit]. (35 ppm models)

OP Network Status * When Optional NIC is installed

Description
Printing an OP Network status page.
Purpose
To acquire the detailed OP Network setting information.

Method
1.Enter the Service Setting menu.
2.Select [OP NW Status].
3.Press the [OK] key.
4.Press the [OK] key. (30 ppm models)
By the left selection key, select [Yes]. (35 ppm models)
5.OP Network status page will be printed.

Completion
Press the [Menu] key. (30 ppm models)
By the right selection key, select [Exit]. (35 ppm models)

6-12
 2NR/2NS/2NT

Test Page

Description
Outputs the test page which is printed in four colors respectively with halftones of three different
levels.
Purpose
To output the test page to judge the cause of the image error.

Method
1.Enter the Service Setting menu.
2.Using the [▲] [▼] keys, select [Test Page].
3.Press the [OK] key.
4.Press the [OK] key. (30 ppm models)
By the left selection key, select [Yes]. (35 ppm models)
5.Test page will be printed.

16/256
Density*2 24/256 Black
32/256

Cyan

Magenta

Green*1
(Yellow)

Figure 6-2
*1: Since focusing in yellow is hardly readable, yellow is mixed with cyan for more readability,
resulting in green.
*2: Each portion of colors has three different magnitude of halftones (bands).
If focus is excessively lost, dots are not recognizable with the 16/256 band, resulting in uneven
density. It also results in vertical streaks in the 24/256 and/or 32/256 bands.

Completion
Press the [Menu] key. (30 ppm models)
By the right selection key, select [Exit]. (35 ppm models)

6-13
 2NR/2NS/2NT

Write Data

Description
To write data into a USB memory.
Execution is possible only when a USB memory is detected.

Method
Install the USB memory before attempting to write data.
1. Enter the Service Setting menu.
2. Using the [▲] [▼] keys, select [Write Data].
3. Press the [OK] key.
4. Press the [OK] key. (30 ppm models)
By the left selection key, select [Yes]. (35 ppm models)
5.[Data waiting] is displayed and the printer waits for data to be written.
6. When the data is sent, [Processing] appears and the data is written to USB memory. When
data writing ends, the display returns to [Ready].

Completion
Press the [Menu] key. (30 ppm models)
By the right selection key, select [Exit]. (35 ppm models)

Maintenance

Description
Counter reset for the maintenance kit
The [Install MK] message means that maintenance kit should be replaced at fixed pages of print-
ing. The interval counter must be manually reset using this service item.
* :This is displayed on the system menu, only when the maintenance kit becomes at the time
to replace.

Maintenance kit MK-5141 (for 30 ppm models) :200,000 images

Maintenance kit MK-5151 (for 35 ppm models) :200,000 images

Maintenance kit includes the following units

Drum unit
Developer unit (K,Y,M,C)
Primary transfer unit
Secondary transfer unit
Fuser unit
Paper feed roller unit
Retard roller unit

Purpose
To reset the life counter for maintenance kit.

Replacing procedure
Drum unit (P.4-12)
Developer unit (K,Y,M,C) (P.4-14)
Primary transfer unit (P.4-6)
Secondary transfer unit (P.4-6)
Fuser unit (P.4-17)
Paper feed roller unit (P.4-25)
Retard roller unit (P.4-20)

6-14
 2NR/2NS/2NT

Method
1. Enter the Service Setting menu.
2. Using the [▲] [▼] keys, select [Maintenance].
3. Press the [OK] key.
4. Press the [OK] key. (30 ppm models)
By the left selection key, select [Yes]. (35 ppm models)
5. [Completed] is displayed. The counter for each component is reset immediately.

Remarks
Occurrences of resetting the maintenance kits are recorded on the service status pageor event
log in number of pages at which the maintenance kit was replaced (P.6-4see page 1-3-2,
pageP.6-27 1-3-18). This may be used to determine the possibility that the counter was errone-
ously or unintentionally reset.

DEV-CLN

Description
The laser output of the image data for developer refreshing is carried out, and the operation of
exposure, developing and primary transfer is performed, for ten pages ? equivalent. (paper is not
fed).
Purpose
To perform when the image failure or problem in developer unit occur

Method
1.Enter the Service Setting menu.
2.Select [Developer refreshing].
3.Press the [OK] key.
4.Press the [OK] key. (30 ppm models)
By the left selection key, select [Yes]. (35 ppm models)
5.Developer refreshing will be executed.

Completion
Press the [Menu] key. (30 ppm models)
By the right selection key, select [Exit]. (35 ppm models)

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 2NR/2NS/2NT

LSU

Description
The LSU cleaning motor drives the cleaning pad to wipe the LSU dust shield glass.
Purpose
To perform when the image failure occurs and stripes are seen in the vertical direction

Method
1.Enter the Service Setting menu.
2.Using the [▲] [▼] keys, select [Laser scanner cleaning].
3.Press the [OK] key.
4.Press the [OK] key. (30 ppm models)
By the left selection key, select [Yes]. (35 ppm models)
5.Laser scanner cleaning will be executed.

Completion
Press the [Menu] key. (30 ppm models)
By the right selection key, select [Exit]. (35 ppm models)

Drum

Description
Rotates the drum approximately 2 minutes with toner lightly on the overall drum. The cleaning
blade in the drum unit scrapes toner off the drum surface to clean it.
Purpose
To clean the drum surface when image failure occurs due to the drum. This mode is effective
when dew condensation on the drum occurs.

Method
1.Enter the Service Setting menu.
2.Using the [▲] [▼] keys, select [Drum refreshing].
3.Press the [OK] key.
4.Press the [OK] key. (30 ppm models)
By the left selection key, select [Yes]. (35 ppm models)
5.Drum refreshing will be executed.

Completion
Press the [Menu] key. (30 ppm models)
By the right selection key, select [Exit]. (35 ppm models)

Altitude Adjustment

Description
Perform the altitude Adjustment Setting.
Purpose
To perform when print quality deteriorates in an installation at the altitude of 1001 meters or
higher

Method
1.Enter the Service Setting menu.
2.Using the [▲] [▼] keys, select [Altitude Adj.].
3.Press the [OK] key.
4.Using the [▲] [▼] keys, select [Normal], [1001 - 2000m], [2001 - 3000m] or [3001 - 3500m].
5.Press the [OK] key to set the setting.

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 2NR/2NS/2NT

Completion
Press the [Menu] key. (30 ppm models)
By the right selection key, select [Exit]. (35 ppm models)

MC

Description
Sets the main charger output.

Purpose
To perform when the image density declines, dirt of a background or an offset has occurred.

Method
1.Enter the Service Setting menu.
2.Using the [▲] [▼] keys, select [MC].
3.Press the [OK] key.
4.Using the [▲] [▼] keys, select the setting "1 to 7".
5.Press the [OK] key to set the setting.

Completion
Press the [Menu] key. (30 ppm models)
By the right selection key, select [Exit]. (35 ppm models)

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 2NR/2NS/2NT-2

(3) Executing the service mode (40 ppm model)

[Message Display]

Ready to print

1. Press the [Menu] Key.

Menu:
Report
Counter
Paper settings

Print settings
Network
Device common

Security
User/Job Account 4. Select [Service Setting]
Aplication using the cursor up/down keys.
5. Press the OK key.
Adjust/Maint. Adjust/Maint.:
Op Functions
Quiet Mode
ColorCalibration
Color Regist.

Restart 6. Select the setting item.

2. Select [Adjustment/Maint.]
using the cursor up/down keys. Service Setting Service Setting:
3. Press the OK key. Service Status
Network Status
Op Netwk Status

Test Page
Maintenance*1
DEV-CLN

Drum
LSU
Auto DrumRefresh

Drum Heater
Write Data
Altitude Adj.

*1:This is displayed on the system menu,

only when the maintenance kit
becomes at the time to replace.

6-18
 2NR/2NS/2NT-2

Service setting

Items Contents page

Service Status Page Printing a service status page. P.6-20
Network Status Printing a network status page. P.6-20
OP Network status Printing an OP Network status page. P.6-20
Test Page The test page is printed with halftones. P.6-21
Maintenance Counter reset for the maintenance kit P.6-22
DEV-CLN Perform developer refreshing. P.6-23
Drum Perform drum refreshing. P.6-24
LSU Clean the LSU dust shield glass. P.6-24
Auto Drum Refresh Perform drum surface refreshing operation, during a certain P.6-25
period of time.
Drum Heater Sets the drum heater. P.6-25
Write Data To write data into a USB memory. P.6-26
Altitude Adjustment Perform the altitude Adjustment Setting. P.6-26

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 2NR/2NS/2NT

(4) Descriptions of service modes

Service Status Page

Description
Printing a service status page. The status page includes various settings and service data.
Function
This is used to retrieve the setting environment information and service data.
Procedure
1.Enter the Service Setting menu.
2.Select [Service Status Page].
3.Press the [OK] key.
4.By the left selection key, select [Yes].
Service status page will be printed.
* :Refer to "Detail of service status page" for the detailed contents. (P.6-5Refer to page 1-6-
58)

Completion
By the right selection key, select [Exit].

Network Status

Description
Printing a network status page.
Purpose
To acquire the detailed network setting information.

Method
1.Enter the Service Setting menu.
2.Select [NW Status].
3.Press the [OK] key.
4.By the left selection key, select [Yes].
Network status page will be printed.

Completion
By the right selection key, select [Exit].

OP Network Status

Description
Printing an OP Network status page.
Purpose
To acquire the detailed OP Network setting information.

* :This is displayed on the system menu, when the optional NIC is installed.

Method
1.Enter the Service Setting menu.
2.Select [OP NW Status].
3.Press the [OK] key.
4.By the left selection key, select [Yes].
OP Network status page will be printed.

Completion
By the right selection key, select [Exit].

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Test Page

Description
Outputs the test page which is printed in four colors respectively with halftones of three different
levels.
Purpose
To output the test page to judge the cause of the image error.

Method
1.Enter the Service Setting menu.
2.Using the [▲] [▼] keys, select [Test Page].
3.Press the [OK] key.
4.By the left selection key, select [Yes].
Test page will be printed.

16/256
Density*2 24/256 Black
32/256

Cyan

Magenta

Green*1
(Yellow)

Figure 6-3
*1: Since focusing in yellow is hardly readable, yellow is mixed with cyan for more readability,
resulting in green.
*2: Each portion of colors has three different magnitude of halftones (bands).
If focus is excessively lost, dots are not recognizable with the 16/256 band, resulting in uneven
density. It also results in vertical streaks in the 24/256 and/or 32/256 bands.

Completion
By the right selection key, select [Exit].

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 2NR/2NS/2NT

Maintenance

Description
Counter reset for the maintenance kit
The [Install MK] message means that maintenance kit should be replaced at fixed pages of print-
ing. The interval counter must be manually reset using this service item.
* :This is displayed on the system menu, only when the maintenance kit becomes at the time
to replace.

Maintenance kit MK-5161 (for 40 ppm models) :300,000 images

Maintenance kit includes the following units

Drum unit
Developer unit (K,Y,M,C)
Primary transfer unit
Secondary transfer unit
Fuser unit
Paper feed roller unit
Retard roller unit

Purpose
To reset the life counter for maintenance kit.

Replacing procedure
Drum unit (P.4-12)
Developer unit (K,Y,M,C) (P.4-14)
Primary transfer unit (P.4-6)
Secondary transfer unit (P.4-28?
Fuser unit (P.4-17)
Paper feed roller unit (P.4-25)
Retard roller unit (P.4-20)

Method
1. Enter the Service Setting menu.
2. Using the [▲] [▼] keys, select [Maintenance].
3. Press the [OK] key.
4. By the left selection key, select [Yes].
5. [Completed] is displayed. The counter for each component is reset immediately.

Remarks
Occurrences of resetting the maintenance kits are recorded on the service status pageor event
log in number of pages at which the maintenance kit was replaced (P.6-4see page 1-3-2,
pageP.6-27 1-3-18). This may be used to determine the possibility that the counter was errone-
ously or unintentionally reset.

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DEV-CLN

Description
The laser output of the image data for developer refreshing is carried out, and the operation of
exposure, developing and primary transfer is performed, for ten pages ? equivalent. (paper is not
fed).
Purpose
To perform when the image failure or problem in developer unit occur

Method
1.Enter the Service Setting menu.
2.Select [Developer refreshing].
3.Press the [OK] key.
4.By the left selection key, select [Yes].
5.Developer refreshing will be executed.

Completion
By the right selection key, select [Exit].

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Drum

Description
Rotates the drum approximately 2 minutes with toner lightly on the overall drum. The cleaning
blade in the drum unit scrapes toner off the drum surface to clean it.
Purpose
To clean the drum surface when image failure occurs due to the drum. This mode is effective
when dew condensation on the drum occurs.

Method
1.Enter the Service Setting menu.
2.Using the [▲] [▼] keys, select [Drum refreshing].
3.Press the [OK] key.
4.By the left selection key, select [Yes]. Drum refreshing will be executed.

Completion
By the right selection key, select [Exit].

LSU

Description
The LSU cleaning motor drives the cleaning pad to wipe the LSU dust shield glass.
Purpose
To perform when the image failure occurs and stripes are seen in the vertical direction

Method
1.Enter the Service Setting menu.
2.Using the [▲] [▼] keys, select [Laser scanner cleaning].
3.Press the [OK] key.
4.By the left selection key, select [Yes]. Laser scanner cleaning will be executed.

Completion
By the right selection key, select [Exit].

6-24
 2NR/2NS/2NT-2

Auto Drum Refresh

Description
Auto drum surface refresh
The drum surface refreshing operation is normally performed when the power is turned on or
during warm-up when the main unit is recovering from the sleep mode, but even then only at
those times that the temperature/humidity sensor detects the drum surface to be in a state of
dew condensation.
Purpose
To clean the drum surface when image failure occurs due to the drum. This mode is effective
when dew condensation on the drum occurs.

Method
1.Enter the Service Setting menu.
2.Using the [▲] [▼] keys, select [Auto Drum refreshing].
3.Press the [OK] key.
4.Using the [▲] [▼] keys, select the desire mode (Off/Short/Standard/Long).
5.By the left selection key, select [Yes]. Drum refreshing will be executed.

* :Default setting: Standard

Completion
By the right selection key, select [Exit].

Drum Heater

Description
Sets the drum heater control.
Purpose
To change the setting according to the machine installation environment.

* :This is displayed on the system menu, only when the drum heater is installed.

Method
1.Enter the Service Setting menu.
2.Using the [▲] [▼] keys, select [Drum Heater].
3.Press the [OK] key.
4.Select [Off] or [On] using the [▲] [▼] keys..

* :Default setting: Off

Completion
By the right selection key, select [Exit].

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 2NR/2NS/2NT

Write Data

Description
To write data into a USB memory.
Execution is possible only when a USB memory is detected.

Method
Install the USB memory before attempting to write data.
1. Enter the Service Setting menu.
2. Using the [▲] [▼] keys, select [Write Data].
3. Press the [OK] key.
4. By the left selection key, select [Yes].
5.[Data waiting] is displayed and the printer waits for data to be written.
6. When the data is sent, [Processing] appears and the data is written to USB memory. When
data writing ends, the display returns to [Ready].

Completion
By the right selection key, select [Exit].

Altitude Adjustment

Description
Perform the altitude Adjustment Setting.
Purpose
To perform when print quality deteriorates in an installation at the altitude of 1001 meters or
higher

Method
1.Enter the Service Setting menu.
2.Using the [▲] [▼] keys, select [Altitude Adj.].
3.Press the [OK] key.
4.Using the [▲] [▼] keys, select [Normal], [1001 - 2000m], [2001 - 3000m] or [3001 - 3500m].
5.Press the [OK] key to set the setting.

Completion
By the right selection key, select [Exit].

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(5) Print Event Log

Print Event Log

Description
Printing a history list of occurences of paper jam, self-diagnostics, toner replacements, etc.
Purpose
Analyze the failure by determining the cause depending on the history of occurrence.

Method
1.Connect the USB interface connector or LAN interface connector to the main unit and PC.
2.Connect the power cord to the machine.
3.Turn the power switch on. Make sure the machine is ready.
4.Send the following PRESCRIBE command sequence from the PC to the machine.

!R!KCFG"ELOG";EXIT;

5.Event Log will be printed.

Completion
Press the [Stop] key.

Remarks: Details of configurations (See above 4.)

Notes on Connecting to USB

(1)1. Save the Prescribe commands above as a text file in the PC.
(2)2. Select the Sharing tab of the printer properties and share the printer.
(3)3. Select a USB port in the Port tab.
(Specify the printer name for sharing.)
(4)4. From the DOS Prompt, execute the following command line:
copy filaname¥¥computer-name\shared-printer
File-name should be the name of the file that was saved in step 1.

Notes on connecting via network (using FTP protocol)

(1)1. Save the Prescribe commands above as a text file in the PC.
(2)2. From the DOS Prompt, execute the following command line:
ftp printer-IP-address
Do not specify user name and password.
(3)3. From the DOS Prompt, execute the following command:
put file-name
File-name should be the name of the file that was saved in step 1.

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 2NR/2NS/2NT

Detail of event log

Event Log
Printer (2) 2014/10/19 15:15
(3) (4) (5)
(1) Firmware version 2NT_2000.001.077 2014.09.19 [XXXXXXXX] [XXXXXXXX] [XXXXXXXX]

(7) Paper Jam Log (11) Counter Log

# Count. Event Descriprions Date and Time
(f) J0000: 0 J4302: 0
12 5555555 0501.01.08.01.00 2014/02/12 17:30 J0100: 1 J4303: 1
11 4444444 4002.01.08.01.00 2014/02/12 17:30 J0101: 11 J4304: 11
1
10 3333333 0501.01.08.01.00 2014/02/12 17:30 J0104: 222 J4309: 2
9 2222222 4002.01.08.01.00 2014/02/12 17:30 J0105: 1 J9000: 1
8 1111111 0501.01.08.01.00 2014/02/12 17:30 J0106: 1 J9004
J9004: 0
7 999999 4002.01.08.01.00 2014/02/12 17:30
J0107: 1 J9010: 1
6 888888 0501.01.08.01.00 2014/02/12 17:30
J0110: 1 J9060: 1
5
4 0501.01.08.01.00
777777
666666
4002.01.08.01
0501.01.08.01
2014/02/12 17:30
2014/02/12 17:30
J0111:
J0211: 1
1 J9061: 2
(a) (b) (c) (d) (e) J9062: 1
3 555555 4002.01.08.01 2014/02/12 17:30
J0212: 1 J9110: 1
2 444444 0501.01.08.01.00 2014/02/12 17:30
J0213: 999 J9120: 0
1 1 4002.01.08.01.00 2014/02/12 17:30
J0501: 1 J9200: 1
J0502: 1 J9210: 1
(8) Service Call Log
J0503: 1 J9220: 2
# Count. Service Code Data and Time
J0504: 1
8 1111111 01.6000 2014/02/12 17:30
J0508: 1
7 999999 01.2100 2014/02/12 17:30 (g) C0000: 0
J0509: 1
6 888888 01.4000 2014/02/12 17:30 C0001: 1
J0511: 1
5 777777 01.6000 2014/02/12 17:30 C0002: 2
J0512: 1
4 666666 01.2100 2014/02/12 17:30 C0003: 3
J0513: 1
3 555555 01.4000 2014/02/12 17:30 C0004: 4
J0514: 1
2 444444 01.6000 2014/02/12 17:30 C0005: 5
J0518: 1
1 1 01.2100 2014/02/12 17:30 C0006: 6
J0519: 1
J1403: 1 C0007: 7
(9) Maintenance Log
Data and Time J1404: 1 C0008: 8
# Count. Item.
2014/02/12 17:30 J1413: 1 C0009: 9
7 999999 01.21
2014/02/12 17:30 J1414: 1 C0010: 10
6 888888 01.40
2014/02/12 17:30 J1604: 1 C0011: 11
5 777777 01.60
2014/02/12 17:30 J1614: 1 C0012: 12
4 666666 01.21
2014/02/12 17:30 J4002: 1 C0013: 13
3 555555 01.40
2014/02/12 17:30 J4003: 1 C0014: 14
2 444444 01.60
2014/02/12 17:30 J4004: 1 C0015: 15
1 1 01.21
J4009: 1 C0016: 16
J4012: 1 C0017: 17
(10) Unknown toner Log C0018: 18
# Count. Item. J4013: 1
Data and Time C0019: 19
5 1111111 01.00 J4014: 1
2014/02/12 17:30 C0020: 20
4 999999 01.00 J4019: 1
2014/02/12 17:30 C0021: 21
3 888888 01.00 J4201: 1
2014/02/12 17:30 C0022: 22
2 777777 01.00 J4202: 0
2014/02/12 17:30 C0023: 23
1 666666 01.00 J4203: 1
2014/02/12 17:30
J4204: 1 (h) T00: 10
J4208: 0 M00: 20
J4209: 1 M02: 30
J4211: 11
J4212: 222
J4213: 1
J4214: 2
J4218: 1
J4213:
J4219: 2
J4301: 1

(6) [XXXXXXXXXX]

Figure 6-4

6-28
 2NR/2NS/2NT

Description of event log

No. Items Contents

(1) System version
(2) System date
(3) Engine software version
(4) Engine boot version
(5) Engine software version
(6) Machine serial number
(7) Paper Jam # Count. Event
Log The total page count at the Log code (hexadecimal, 5
Remembers 1 to 16 th of
occurrence. time of the paper jam. categories)
If the occurrence of the
previous paper jam is less (a) Cause of paper jam
than 16, all of the paper (b) Paper source
jams are logged. When the (c) Paper size
occurrence execeeds 16, (d) Paper type
the oldest occurrence is (e) Paper eject
removed.
(a) Detail of Cause of paper jam (Hexadecimal)
: Refer to "17-1 Paper Misfeed Detection" (page 1-7-1),for the detail of Cause of
paper jam. (page P.7-4)
(b) Detail of paper source (Hexadecimal)
00: MP tray
01: Cassette 1
02: Cassette 2 (paper feeder)
03: Cassette 3 (paper feeder)
04: Cassette 4 (paper feeder)
05 to 09: Reserved
(c) Detail of paper size (Hexadecimal)
00: Not specified 0B: B4 22: Special 1
01: Monarch 0C: Ledger 23: Special 2
02: Business 0D: A5R 24: A3 Wide
03: International DL 0E: A6 25: Ledger Wide
04: International C5 0F: B6 26: 26: Full bleed paper
05: Executive 10: Commercial #9 (12 x 8)
06: Letter-R 11: Commercial #6 27: 8K
86: Letter-E 12: ISO B5 28: 16K-R
07: Legal 13: Custom size A8: 16K-E
08: A4R 1E: C4 32: Statement-R
88: A4E 1F: Hagaki B2: Statement-E
09: B5R 20: Oufuku Hagaki 33: Folio
89: B5E 21: Oficio II 34: Youkei type 2
0A: A3 35: Youkei type 4

6-29
 2NR/2NS/2NT-1

No. Items Contents

(7) Paper Jam (d) Detail of paper type (Hexadecimal)
cont. Log
01: Plain 0A: Color 15: Custom 1
02: Transparency 0B: Prepunched 16: Custom 2
03: Preprinted 0C: Envelope 17: Custom 3
04: Labels 0D: Cardstock 18: Custom 4
05: Bond 0E: Coated 19: Custom 5
06: Recycled 0F: 2nd side 1A: Custom 6
07: Vellum 10: Media 16 1B: Custom 7
08: Rough 11: High quality 1C: Custom 8
09: Letterhead

(8) Service # Count. Service Code

Call Log
Remembers 1 to 8 th of The total page count at the Self diagnostic error code
occurrence of self diagnos- time of the self diagnostics (See page 1-6-58)
tics error. error.
If the occurrence of the Example: 01.6000
previous diagnostics error 01: Self diagnostic
is less than 8, all of the error6000: Self diagnostic
diagnostics errors are error code number
logged.
(9) Mainte- # Count. item
nance Log Remembers 1 to 8 of The total page count at the Code of maintenance
occurrence of replace- time of the replacement of replacement item (1 byte,
ment. If the occurrence of the maintenance replacing 2 categories)
the previous replacemen- item.
tof toner container is less First byte (Replacing item)
than 8, all of the occur- 01: Toner container
rences of replacement are The toner replacement log Second byte (Type of
logged. is triggered by toner empty. replacing item)
This record may contain 00: Black
such a reference as the 01: Cyan
toner container is inserted 02: Magenta
twice or a used toner con- 03: Yellow
tainer is inserted.
First byte (Replacing item)
02: Maintenance kit
Second byte (Type of
replacing item)
01: MK-5140/ 5142/ 5144
(for 30 ppm model only)
MK-5150/ 5152/ 5154
(for 35 ppm model only)
MK-5160/ 5162/ 5164
(for 40 ppm model only)

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 2NR/2NS/2NT-1

No. Items Contents

(10) Unknown # Count. item
Toner Log
Remembers 1 to 5 of The total page count at the Unknown toner log code (1
occurrence of unknown time of the request of toner byte, 2 categories)
toner detection. If the container replacement,
occurrence of the previous when using the non-genu- First byte (Replacing item)
unknown toner detection is ine toner container. 01: Toner container
less than 5, all of the (Fixed to 01)
unknown toner detection Second byte (Type of
are logged. replacing item)
00: Black
01: Cyan
02: Magenta
03: Yellow

(11) Counter (f) Paper jam (g) Self diagnostic error (h) Maintenance replacing
Log item
Consist of Indicates the log counter of Indicates the log counter of Indicates the log counter
three log paper jams depending on self diagnostics errors depending on the mainte-
counters
location. depending on cause. nance replacing item.
of paper Refer to Paper Jam Log.
jams, self Example: C6000: 4 T: Toner container
diagnos-
All instances including Self diagnostic error 6000 00: Black
tics errors, those are not occurred are has happened four times. 01: Cyan
and main- displayed. 02: Magenta
tenance
03: Yellow
replace-
ment M: Maintenance kit
items.
01: MK-5140/ 5142/ 5144
(for 30 ppm model only)
MK-5150/ 5152/ 5154
(for 35 ppm model only)
MK-5160/ 5162/ 5164
(for 40 ppm model only)

Example: T00: 1
The toner container
(Black) has been replaced
once.

The toner replacement log

is triggered by toner empty.
This record may contain
such a reference as the
toner container is inserted
twice or a used toner con-
tainer is inserted.

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This page is intentionally left blank.

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 2NR/2NS/2NT

7 Troubleshooting
7-1 Paper misfeed detection
(1) Paper misfeed indication
When a paper misfeed occurs, the machine immediately stops printing and displays the paper misfeed
message on the operation panel. To remove paper misfed in the machine, pull out the cassette, open the
paper conveying unit or paper conveying cover.
The locations are displayed on the operation panel when a paper jam has occurred.

Misfeed location indicators

30 ppm models
The locations are displayed on the operation panel when a paper jam has occurred.
Shows the location of a paper jam.

Paper jam
Cassette 1

Figure 7-1

Misfeed location indicators Paper jam:

Misfeed in MP tray
Paper jam
MP Tray

Misfeed in the cassette 1 to 4

Paper jam
Cassette 1 (~4)

Misfeed inside the rear cover 1 (conveying)

Paper jam
Rear Cover

Misfeed inside the rear cover 2

Paper jam
Rear Cover 2

Misfeed inside the rear cover 3

Paper jam
Rear Cover 3

Misfeed inside the rear cover 1

Paper jam
Rear Cover

7-1
 2NR/2NS/2NT

Misfeed location indicators Paper jam:

Misfeed in the duplex unit
Paper jam
Duplex unit

7-2
 2NR/2NS/2NT

35/40 ppm models

The locations are displayed on the operation panel when a paper jam has occurred.

Paper
jammed in
Cassette 1.
JAM****
Help

Displays the Help screen.

F
G
A
C
B
B
Shows the location of a paper jam.
D
B
E
B

Figure 7-2

A. Misfeed in MP tray D. Misfeed inside the rear cover 2

B. Misfeed in the cassette 1 to 4 E. Misfeed inside the rear cover 3
C. Misfeed inside the rear cover 1 (convey- F. Misfeed inside the rear cover 1
ing) G. Misfeed in the duplex unit

7-3
 2NR/2NS/2NT

(2) Paper misfeed detection condition

Machine + PF (Option)

PFS
ES

C DUPCS

A
RS
D MPPCS

MPPS
PS
B
PFFS1
PFPS1

PFFS2
PFPS2

PFFS3
PFPS3

Figure 7-3

7-4
 2NR/2NS/2NT

List of JAM Code

JAM
Code Contents Detection conditions
Position*
Initial jam The power is turned on when a sensor in the con- -
0000
veying system is on.
Secondary feeding timeout Secondary paper feed request given by the con- -
0100
troller is unreachable.
Wait for ready of print-process Before the paper feeding, the reply of Standby- -
package Ready from the driving function does not come
0101 for 40 s, or before the secondary paper feeding,
the reply of StartReady from the drive function
does not come for 40 s.
Wait for ready of conveying Before the paper feeding or the secondary paper -
package feeding starts, the permission notice of the paper
0104
feeding or the secondary paper feeding does not
come for 40 s.
0105 Drive prevention jam A drive does not stop. -
Paper feeding request for Paper feeding request for duplex printing given by -
0106
duplex printing time out the controller is unreachable.
Wait for ready of fuser pack- Before the paper feeding or the secondary paper -
0107 age feeding starts, the secondary paper feeding tem-
perature does not come for 80 s.
0110 Rear cover open jam The rear cover is opened during printing. -
0111 Top cover open jam The inner tray is opened during printing. -
0211 Cassette cover 2 open jam The cassette cover 2 is opened during printing. -
0212 Cassette cover 3 open jam The cassette cover 3 is opened during printing. -
0213 Cassette cover 4 open jam The cassette cover 4 is opened during printing. -
No paper feeding jam Registration sensor (RS) does not turn on during B
0501
paper feed from cassette 1.
PF feed sensor 1 (PFFS1) does not turn on dur- B
0502
ing paper feed from cassette 2.
PF feed sensor 2 (PFFS2) does not turn on dur- B
0503
ing paper feed from cassette 3.
PF feed sensor 3 (PFFS3) does not turn on dur- B
0504
ing paper feed from cassette 4.
Registration sensor (RS) does not turn on during B
paper feed from duplex section.
* When the eject motor is reversely rotating.
0508
35/40 ppm printer model only: when the duplex
clutch is ON

MP conveying sensor (MPPCS) does not turn on A

during paper feed from MP tray, even if the speci-
0509 fied time has passed after the solenoid turned on.

7-5
 2NR/2NS/2NT

JAM
Code Contents Detection conditions
Position*
Multiple sheets jam Registration sensor (RS) does not turn off during B
0511
paper feed from cassette 1.
PF feed sensor 1 (PFFS1) does not turn off dur- B
0512
ing paper feed from cassette 2.
PF feed sensor 2 (PFFS2) does not turn off dur- B
0513
ing paper feed from cassette 3.
PF feed sensor 3 (PFFS3) does not turn off dur- B
0514
ing paper feed from cassette 4.
Multiple sheets jam Registration sensor (RS) does not turn off during E
0518
paper feed from duplex section.
MP conveying sensor (MPPCS) does not turn off E
0519
during paper feed from MP tray.
PF feed sensor 2 PF feed sensor 2 (PFFS2) does not turn on dur- B
1403
non arrival jam ing paper feed from cassette 3.
PF feed sensor 3 (PFFS3) does not turn on dur- B
1404
ing paper feed from cassette 4.
PF feed sensor 2 PF feed sensor 2 (PFFS2) does not turn off dur- C
1413
stay jam ing paper feed from cassette 3.
PF feed sensor 3 (PFFS3) does not turn off dur- C
1414
ing paper feed from cassette 4.
PF feed sensor 3 PF feed sensor 3 (PFFS3) does not turn on dur- B
1604
non arrival jam ing paper feed from cassette 4.
PF feed sensor 3 PF feed sensor 3 (PFFS3) does not turn off dur- C
1614
stay jam ing paper feed from cassette 4.
Registration sensor non Registration sensor (RS) does not turn on during C
4002
arrival jam paper feed from cassette 2.
Registration sensor (RS) does not turn on during B
4003
paper feed from cassette 3.
Registration sensor (RS) does not turn on during B
4004
paper feed from cassette 4.
Registration sensor (RS) does not turn on during A
4009
paper feed from MP tray.
Registration sensor stay jam Registration sensor (RS) does not turn off during D
4012
paper feed from cassette 2.
Registration sensor (RS) does not turn off during D
4013
paper feed from cassette 3.
Registration sensor (RS) does not turn off during D
4014
paper feed from cassette 4.
Registration sensor (RS) does not turn off during D
paper feed from MP tray.
4019

7-6
 2NR/2NS/2NT

JAM
Code Contents Detection conditions
Position*
Eject sensor non arrival jam Eject sensor (ES) does not turn on during paper E
4201
feed from cassette 1.
Eject sensor (ES) does not turn on during paper E
4202
feed from cassette 2.
Eject sensor (ES) does not turn on during paper E
4203
feed from cassette 3.
Eject sensor (ES) does not turn on during paper E
4204
feed from cassette 4.
Eject sensor (ES) does not turn on during paper D
4208
feed from duplex section.
Eject sensor (ES) does not turn on during paper D
4209
feed from MP tray.
Eject sensor stay jam Eject sensor (ES) does not turn off during paper E
4211
feed from cassette 1.
Eject sensor (ES) does not turn off during paper E
4212
feed from cassette 2.
Eject sensor (ES) does not turn off during paper E
4213
feed from cassette 3.
Eject sensor (ES) does not turn off during paper E
4214
feed from cassette 4.
Eject sensor (ES) does not turn off during paper E
4218
feed from duplex section.
Eject sensor (ES) does not turn off during paper E
4219
feed from MP tray.

* Refer to figure 7-4 for the paper misfeed indication (see page 7-4).

7-7
 2NR/2NS/2NT

(3) First check items

If the paper is fed askew, jammed, curled, or leading-edge dog-eared, first check the following items.

Check items Check description Corrective Action

Paper 1. Check the paper delivered is If a dog-ear occurs, check there are no objects existing
dog-eared, skewed or in the conveying paths, and if any, fix it.
creased. If the paper is fed askew or creased, execute No.2.
below
2. Check how paper is loaded in Adjust the cursors to the size of the paper.
the cassette (paper feeder).
Check that the paper has
been properly aligned with
the width adjuster cursor and
the rear guide; it has been
loaded without skewing; or it
is not damaged.
(creased paper, main unit
jam)
3. Check how paper is loaded. If the cutting edge of the paper bundle is crumpled, fan
Check if the cutting edge of the paper before loading. If the paper is folded, stretch
the paper bundle inside is before loading in the cassette.
crumpled or bent.
4. Check the paper is moist, Load the paper in the cassette upside down.
wavy, or curled. Load paper in the cassette after rotating it 180 degrees.
Change the paper.
5. Check if the paper loaded in Instruct the user to store paper in a dry, less humid
the cassette was stored in a place.
continuously humid place.
6. Check if the paper conforms Isolate the cause of the problem by replacing the paper
to the specification. with the recommended paper.
(see page 1-1)

7-8
 2NR/2NS/2NT

Check items Check description Corrective Action

Settings/ 1. Check if the margin is If the check line is not situated at 4.0mm ± 2.5mm from
Detection 4.0±2.5mm from the leading the leading edge, adjust the leading margin by the Main-
edge of paper. tenance menu in Product Library.
2. Check the operation panel if If the paper size is incorrectly displayed, set the size of
the paper size is correctly set. the paper cassette properly.
(multi-feed jam) (MFP: Per-
form U000 to obtain a Event
Log to check if the paper size
and the size of the paper
loaded are met when jam has
ccurred and if the size of the
original document and the
paper size are met.) (see
page 6-20)
3. Check that paper settings are Select Original/Paper settings under [Common Settings]
made in accordance with the in the system menu to set media type and weight of
paper being used. (Jam paper.
caused by faulty separation)
Rear cover Check the rear cover of the main Open the rear cover and close it firmly. (Check the posi-
unit are slightly strained and tion of the safety switch)
closed
Conveying 1. Check that the foreign If foreign objects such as torn paper, etc. remain in the
guide objects including torn paper, paper conveying path, remove them
Entry guide paper clips, etc., do not exist
Feedshift in the paper conveying paths.
guide 2. Check that the paper convey- If dirty, clean the guide, ribs (by a cloth), and the separa-
ing guide and the separation tion needles (by a cleaning brush).
needles are not contaminated If the ribs of the conveying guides were broken or
with toner, paper dust, etc. deposited with toner, replace the conveying guide.
3. Check that the paper convey- Clean the conveying guide or the paper entry guide.
ing guide has no barrs, defor- Remove any protrusions including barrs. If floated, reat-
mations, or abrasions; and it tach. If deformation or abrasion is observed, replace it.
is properly attached without
being floated.
4. Check that the guide is If the guide does not operate smoothly, replace the
smoothly operative. guide or the unit.
Check that the guide is
smoothly operative by hand.
5. Check that the guide is If the guide is inoperative or won't operate smoothly,
smoothly operative. reattach the guide or replace the unit.

7-9
 2NR/2NS/2NT

Check items Check description Corrective Action

Conveying 1. Check the conveying rollers Clean the conveying rollers or the pollyes. If variation in
roller have no paper dust, toner, or the external diameter or abrasion is observed, replace
Paper feed foreign objects stucked. it.
roller Check the variation of the
external diameter of the roller
or abrasion is not observed
with the coveying roller.
2. Turn the cover safety switch If the conveying motor or the clutch is inoperative,
and check the motor and the replace it.
clutch are operated normally. If stained, replace the clutch.
If the clutch is kept turned on due to a tensioned wire,
realign the wire.
3. Check the conveying rollerro- Clean the roller shaft or bushing. Reattach it while
tates without overloading. checking the pressure of the spring.
Check the bushing or the
roller shaft is not contami-
nated.
Check that the spring has not
fallen off and is attached so
that it is properly applying
pressure against the rollers
or pulleys.
Sensor 1. Check if it does not operate Reattach the actuator or the return spring.
with smoothness due to an
abnormal move or dropping
off of the actuator of the con-
veying switch.
2. Check that the surface of the If dirty, clean the sensor.
sensor is not contaminated
with toner, paper dust, etc.
3. Check the sensors are oper- If the sensor is inoperative, replace the switch.
ated normally.
Static Check if the location is suscepti- Reattach and reconnect the static discharge sheet at
ble to build static discharge at the the eject unit and the metal guide at the tranfer unit so
conveying guide during printing. that they are properly grounded.

7-10
 2NR/2NS/2NT

(4) Items and corrective actions relating to the device that will cause paper jam

Jam types Check description Corrective Action

No paper feeding 1. Check if the jammed Replace the paper feed roller. (Service life of roller:
jam or the leading paper or printed paper 200000 images for 30/35 ppm models, 300000
edge of paper is has a tear at its leading images for 40 ppm models )
curled back at the edge caused by the Clean the roller, or decrease the spring pressure to
position of the roller roller. pinch the retard rollers if the component is under to its
(J0501, J0502, expected life. Or replace the spring.
J0503, J0504, J0509) 2. Check abrasion and Clean the paper feed roller and the pickup roller. Or, if
paper dusts on the feed not corrected, replace.
roller and forwarding
rollers.
3. Check the pickup roller If disconnected or or stained, replace the conveying
and paper feed roller drive unit.
are rotating.
4. Check that the convey- Increase the conveying force during paper pickup by
ing force of the pickup increasing the spring load of the pickup roller.
roller is sufficient.
Multiple-feed Jam 1. Check if the cutting If the cutting edge of the paper bundle is crumpled or
(J0511, J0512, J0513, edge of the paper bun- the cassette is loaded with multiple times of replen-
J0514, J0519) dle is crumpled or the ishing paper, load new paper.
cassette is loaded with
multiple times of replen-
ishing paper.
2. Checking paper size If the paper size does not match
Check that the size of If the cassette cursors have gaps with paper, set
the loaded paper and them properly.
the paper size chosen Insert the cassette until the paper size detector switch
on the operator panel is turned on. If the size is not detectable evev after
are met. inserting all the way, check the position of the size
detector switch, or replace the size detection switch.
If the paper size matches
If paper is used out of the specification such as
coated paper, inkjet paper, etc., replace the paper.
Reattach the retard roller in the primary paper feed
unit if it is mounted to the opposite direction.
Check if the retard spring has not been fallen off of
the mounting position.
If the retard spring is not dropped off of the mount
position, decrease the spring pressure that is applied
to the separation rollers.
Replace the retard roller unit.
3. Check if paper dusts If the paper fanning roller is dirty, clean. If abrasion is
and abrasion are observed, replace.
observed on the retard
roller.

7-11
 2NR/2NS/2NT

Jam types Check description Corrective Action

Multiple-feed Jam 4. Check the clutch that If the clutch rotates following other component and its
(J0511, J0512, J0513, are rotating following stain is observed, replace the conveying drive unit.
J0514, J0519) other component when
the motor is turned on.
Duplex no paper Check if the registration If the registration sensor is not working, replace the
feeding Jam (J0508) sensor is detected. registration sensor.
Duplex Multiple-feed
Jam (J0518)

PF conveying sen- 1. Check to see if the If it does not operate smoothly, reattach or replace
sor stay jam actuator of the paper the actuator's return spring.
(J1413, J1414, conveying sensor is
J1614) smoothly operative.
2. Check the operation of If the sensor is inoperative, replace it.
the sensor.
3. Check if the PF paper If stained, replace the clutch. Re-assmeble the clutch
feed clutch rotates fol- so that it is not continuously energized. Change of
lowing other compo- wirings, etc.
nent.
4. Check if the conveying If the bracket is attached while twisted, remove the
guide is attached while screw securing the conveying guide and properly
twisted. (If the attached reattach the bracket in the right positioning.
parts of the guide is
floated, the actuator
does not protrude suffi-
ciently.)
5. Check no wrinkles are Adjust the cursors to the size of the paper.
observed at the sluck of
paper during paper
feeding.
PF conveying sen- 1. Check to see if the Reattach or replace the actuator's return spring.
sor non arrival jam actuator is smoothly
(J1403, J1404, operative.
J1604)
2. Check the operation of If the roller does not rotate smoothly, loosen the
the motor. screws for adjusting the position (at the gear train
Check the transmis- bracket) to mount the driving gears, and tighten so
sion of the gear drive by that a gap between the gears and frame is elimi-
the clutch operation. nated.
* : * Check the convey-
ing roller rotates and
is smoothly mov-
able in the thrust
direction.

7-12
 2NR/2NS/2NT

Jam types Check description Corrective Action

Fuser eject sensor 1. If paper jams at the If the clearance between the housing and the feed-
non arrival jam, stay feedshift guide, check if shift guide is too small for the guide to smoothly
jam (J420X,J421X) the guide is smoothly move, replace the feedshift guide.
operative.

2. Check to see if the 1. If the actuator is not in proper position, or does

actuator of the ejct sen- not return due to falling of the return spring, reat-
sor is smoothly opera- tach it.
tive. 2. If the actuator is damaged or deformed, replace
it.
3. Check if the eject sen- Replace the defective eject sensor or the eject unit.
sor does not show a
false detection.

7-13
 2NR/2NS/2NT

(5) Paper jam at feeding from paper feeder 1

Electrical parts that could cause paper jam during paper conveying at the primary
feed ( to the registration roller)

Timing of detection

Jam code
J0501, J0511

Corrective Action

Related parts
Registration sensor Main/Engine PWB
Paper feed clutch Engine relay PWB
Middle clutch
Paper conveying and developer motor

Check action at the Point of checking connection of On/

Corrective action at the occurrence of
occurrence step Off control signal output connector
J0501
J0501/J502 (terminal)
1 Items for Initial Checks (see page 7-8)
Registration sensor: Check continuity, Main/Engine PWB YC12-2
2 location and operation of registration
sensor
3 Main/Engine PWB: Replace
4 Engine relay PWB: Replace
5 Paper feed clutch: Operation check Engine relay PWB YC15-13
6 Middle clutch: Operation check Engine relay PWB YC15-9
Conveying/Developer motor: Operation Engine relay PWB YC15-1/2/3/4
7
check

7-14
 2NR/2NS/2NT

(6) Paper jam at feeding from cassette 2 (paper feerder 1)

Electrical parts that could cause paper jam during paper conveying at the primary
feed ( to the registration roller)

Timing of detection

Jam code
J0502, J0512, J4002, J4012

Corrective Action

Related parts
PF paper feed sensor Paper conveying and developer motor
PF paper feed clutch Registration sensor
PF Paper conveying and developer PF main PWB
motor
PF conveying clutch Main/Engine PWB (MEPWB)
Middle clutch Engine relay PWB (ECPWB)

Check action at the Point of checking connection of On/

occurrence step Corrective action at the occurrence Off control signal output connector
J0502/J0512 (terminal)
1 Items for Initial Checks (see page 7-8)
PF Feed sensor 1: Conduct connectivity PF main PWB YC5-6
2 check, mounting location check, opera-
tion check
3 PF paper feed clutch: Operation check PF main PWB YC9-2
4 PF conveying clutch: Operation check PF main PWB YC9-4
PF Paper conveying and developer PF main PWB YC6-1/2/3/4
5
motor: Operation check
6 PF main PWB: Replace

Check action at the Point of checking connection of On/

occurrence step Corrective action at the occurrence Off control signal output connector
J4002/J4012 (terminal)
1 Items for Initial Checks (see page 7-8)
Check continuity, location and operation Main/Engine PWB YC12-2
2
of registration sensor (RS)
3 Main/Engine PWB: Replace (see page 4-62)
4 Middle clutch: Operation check Engine relay PWB YC15-9

7-15
 2NR/2NS/2NT

Check action at the Point of checking connection of On/

occurrence step Corrective action at the occurrence Off control signal output connector
J4002/J4012 (terminal)
Conveying/Developer motor: Operation Engine relay PWB YC15-1/2/3/4
5
check
6 Engine relay PWB: Replace

7-16
 2NR/2NS/2NT

(7) Paper jam at feeding from the MP tray

Electrical parts that could cause paper jam during paper conveying at the primary
feed ( to the registration roller)

Timing of detection

Jam code
J0509,J0519

Corrective Action

Related parts
Registration sensor MP conveying clutch

MP solenoid Main/Engine PWB

Paper conveying and developer motor Engine relay PWB

Check action at the Point of checking connection of On/

occurrence step Corrective action at the occurrence Off control signal output connector
J0509/J0519 (terminal)
1 Items for Initial Checks (see page 7-8)
Check continuity, location and operation Main/Engine PWB YC12-2
2
of registration sensor
3 MP solenoid: Operation check Engine relay PWB YC16-2
4 MP conveying clutch: Operation check Engine relay PWB YC15-11
Conveying/Developer motor: Operation Engine relay PWB YC15-1/2/3/4
5
check
6 Engine relay PWB: Replace
7 Main/Engine PWB: Replace (see page 4-62)

7-17
 2NR/2NS/2NT

(8) Paper jam at the duplex re-feeding section

Electrical parts that could cause paper jam during paper conveying at the primary
feed ( to the registration roller)

Timing of detection

Jam code
J0508,J0518

Corrective Action

Related parts
Registration sensor Main/Engine PWB

Middle clutch Engine relay PWB

Paper conveying and developer motor

Check action at the Point of checking connection of On/

occurrence step Corrective action at the occurrence Off control signal output connector
J0508/J0518 (terminal)
1 Items for Initial Checks (see page 7-8)
Check continuity, location and operation Main/Engine PWB YC12-2
2
of registration sensor
3 Main/Engine PWB: Replace (see page 4-62)
4 Middle clutch: Operation check Engine relay PWB YC15-9
5 Paper conveying and developer motor Engine relay PWB YC15-1/2/3/4
6 Engine relay PWB: Replace

7-18
 2NR/2NS/2NT

(9) Electrical parts that could cause paper jam at the transfer , the fuser and the eject
parts

Timing of detection

Jam code
J4201,J4211

Corrective Action

Related parts
Eject sensor Main/Engine PWB

Paper conveying and developer motor Engine relay PWB

Duplex eject motor

Checking proce-
Point of checking connection of On/
dure at the occur- Corrective action at the occurrence of
Off control signal output connector
rence step J41XX
(terminal)
J4201/J4211
1 Items for Initial Checks (see page 7-8)
Check continuity, location and operation Main/Engine PWB YC11-7
2
of eject sensor
3 Main/Engine PWB: Replace (see page 4-62)
4 Duplex eject motor: Operation check Engine relay PWB YC20-1/2/3/4
Conveying/Developer motor: Operation Engine relay PWB YC15-1/2/3/4
5
check
6 Engine relay PWB: Replace

7-19
 2NR/2NS/2NT-1

7-2 Self diagnostic

(1) Self diagnostic function
This machine is equipped with self-diagnostic function. When a problem is detected, the machine stops
operation and display an error message on the operation panel. An error message consists of a message
prompting a contact to service personnel and a four-digit error code indicating the type of the error.

(2) Self diagnostic codes

If the part causing the problem was not supplied, use the unit including the part for replacement.
* : * Before attempting to check the power supply and the fuser unit, be sure to turn the power switch off
and unplug the machine from power. Allow at least 5 s before starting to conduct service until the
capacitors on the circuit boards have been completely discharged.

Indica-
Contents Related parts Check procedures/corrective measures
tion
Backup memory device Flash memory 1. Unplug the power cord from the wall out-
error (Main/Engine let, and wait five seconds. Then plug the
Outputs an abnormal status PWB) power cord and then turn on the power
from the flash memory. switch.
0100 2. Check that the connectors on the Main/
Engine PWB are properly connected,
and if not, re-connect them.
3. Replace the Main/Engine PWB. (see
page 4-62)
MAC address data error Flash memory 1. Unplug the power cord from the wall out-
In case MAC address is (Main/Engine let, and wait five seconds. Then plug the
invalid data PWB) power cord and then turn on the power
switch.
0120 2. Check the MAC address on the network
status page.
3. Replace the Main/Engine PWB. (see
page 4-62)

Backup memory read/write Flash memory 1. Unplug the power cord from the wall out-
error (Main/Engine PWB) (Main/Engine let, and wait five seconds. Then plug the
Read/write to the NAND PWB) power cord and then turn on the power
memory can not be executed (Main/Engine switch.
PWB) 2. Check that the connectors on the Main/
Engine PWB are properly connected,
and if not, re-connect them.
3. Replace the Main/Engine PWB. (see
0130
page 4-62)

7-20
 2NR/2NS/2NT

Indica-
Contents Related parts Check procedures/corrective measures
tion
0140 Backup memory data error Flash memory 1. Unplug the power cord from the wall out-
(Main/Engine PWB) (Main/Engine let, and wait five seconds. Then plug the
At power up, the data that was PWB) power cord and then turn on the power
read from the NAND memory (Main/Engine switch.
has been determined to be a PWB) 2. Replace the Main/Engine PWB. (see
error. page 4-62)
0150 EEPROM read/write error EEPROM 1. Unplug the power cord from the wall out-
(Main/Engine PWB) (Main/Engine let, and wait five seconds. Then plug the
1. No response is issued PWB) power cord and then turn on the power
from the device in reading/ switch.
writing for 5 ms or more 2. Check that the EEPROM is peroperly
and this problem is installed on the Main/Engine PWB and if
repeated 5 times succes- not, reinstall it.
sively. 3. Replace the Main/Engine PWB. (see
2. Mismatch of reading data page 4-62)
from two locations occurs 4. Check the EEPROM and if it is dam-
8 times successively. aged, contact the service support.
3. Mismatch between writ-
ing data and reading data
occurs 8 times succes-
sively.
0160 EEPROM data error (Main/ EEPROM (Main/ 1. Unplug the power cord from the wall out-
Engine PWB) Engine PWB) let, and wait five seconds. Then plug the
Reading data from EEPROM power cord and then turn on the power
is detected abnormal. switch.
2. If the EEPROM data are currupted, con-
tact the service support.
0170 Billing counting error EEPROM (Main/ 1. Check that the EEPROM installed in the
Mismatch between the value Engine PWB) Main/Engine PWB is correct and, if not,
of the Main/Engine PWB and install the correct EEPROM for the
EEPROM, in one of the value model.
of billing counter, life counter, 2. Replace the Main/Engine PWB. (see
or scanner counter. page 4-62)
3. If the EEPROM data are currupted, con-
tact the service support.
Backup memory device FRAM (Main/ 1. Unplug the power cord from the wall out-
error (Main/Engine PWB) Engine PWB) let, and wait five seconds. Then plug the
At power up, read/write data power cord and then turn on the power
from FRAM can not be per- switch.
formed. (retry: 3times) 2. Check that the connectors on the Main/
Engine PWB are properly connected,
and if not, re-connect them.
0190
3. Replace the Main/Engine PWB. (see
page 4-62)

7-21
 2NR/2NS/2NT

Indica-
Contents Related parts Check procedures/corrective measures
tion
Communication error Main/Engine PWB 1. Unplug the power cord from the wall out-
between the engine ASIC let, and wait five seconds. Then plug the
During the readback data power cord and then turn on the power
checked after data transmis- switch.
0360 sion, the checksum error or 2. Check that the connectors on the Main/
the video signal is not Engine PWB are properly connected,
inverted. (failed 10 consecu- and if not, re-connect them.
tive times) 3. Replace the Main/Engine PWB. (see
page 4-62)
Image formation problems Main/Engine PWB 1. Check if the problem is a printing opera-
The printing sequence JAM tion error detection in a particular file,
(J010X) is detected for 2 con- and if it is possible to obtain the repro-
secutive times. duction of phenomena by the identifica-
tion of the job that detected the error,
0800 take the job log.
2. If the problem occurs in unspecified job,
check the connectors on the Main/
Engine PWB, and reattach it.
3. Replace the Main/Engine PWB. (see
page 4-62)
0840 Faults of RTC Settings of RTC 1. Execute Date Setting using the system
Check at power up. menu.
The RTC setting has reverted Backup battery 1. Check if the backup battery on the Main/
to a previous state. The
(Main/Engine Engine PWB is not short-circuited.
machine has not been pow- PWB) 2. Unplug the power cord from the wall out-
ered for 5 years (compared to (Main/Engine let, and wait five seconds. Then plug the
the settings stored periodically
PWB) power cord and then turn on the power
in the EEPROM). switch. If the same service call error is
The RTC setting is older than displayed, replace the backup battery.
00:01 on January 1, 2000.
Main/Engine PWB 1. If the communication error (due to a
Checked periodically (at every noise, etc.) is present with the RTC on
5 minutes) after power-up. the Main/Engine PWB, check that the
The RTC setting has reverted PWB is properly grounded or secured by
to a state older than the last screws.
time it was checked. 2. Replace the Main/Engine PWB. (see
10 minutes have been passed page 4-62)
since the previous check.

7-22
 2NR/2NS/2NT

Indica-
Contents Related parts Check procedures/corrective measures
tion
1010 Lift motor error (main unit) Bottom plate 1. Check to see if the bottom plate can
move smoothly and repair or replace it if
The following states have any problem is found.
been detected 5 times in suc-
Defective connec- 1. Reinsert the connector.
cession. tor cable or poor 2. If a wire is pinched by other component,
The lift motor overcurrent is contact in the con- or has defect conduction, replace it.
detected for 80 ms.
nector Lift motor and Engine relay PWB (YC25)
After the cassette is installed, Engine relay PWB (YC1) and Main/Engine
the upper limit detection sen- PWB (YC4)
sor does not turn ON within 10 Llift sensor and Engine relay PWB (YC8)
s.
During printing, after the Drive transmission 1. Check if the gears rotate smoothly. If
upper limit detection sensor system for the lift not, clean or grease the bushes and
detects off, and 1 s after motor gears.
ascending control, and the 2. Check broken gears and replace if any.
upper limit detection sensor Lift motor Replace the lift motor.
does not detect on.
Lift sensor (upper 1. Check if the actuator of the lift sensor
The upper limit detection sen-
limit detection sen- can be turned ON/OFF to suit the rise of
sor does not turn off within 5 s
sor) the cassette bottom plate.
after descending control.
2. Replace the lift sensor
The upper limit detection sen-
sor does not turn on within 5 s Engine relay PWB 1. Replace the engine relay PWB. (see
after ascending control. page 4-80)
Main/Engine PWB 1. Replace the Main/Engine PWB. (see
page 4-62)

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tion
1020 PF lift motor error (PF1) Bottom plate Check to see if the bottom plate can move
smoothly and repair or replace it if any prob-
The following states have lem is found.
been detected 5 times in suc-
Defective connec- 1. Reconnect the connector if its connec-
cession. tor cable or poor tion is loose.
The lift motor overcurrent is contact in the con- 2. If a wire is pinched by other component,
detected for 200 ms.
nector or has defect conduction, replace it.
After the cassette is installed, PF lift motor 1 and PF main PWB (YC7)
the upper limit detection sen- LPF1 main PWB and Engine relay PWB
sor does not turn ON within 10 (YC19)
s.
During printing, after the
upper limit detection sensor Drive transmission 1. Check if the gears rotate smoothly. If
detects off, and 1 s after system for the lift not, clean or grease the bushes and
ascending control, and the motor gears.
upper limit detection sensor 2. Check broken gears and replace if any.
does not detect on. PF lift motor 1 Replace the PF lift motor 1.
The upper limit detection sen-
PF1 main PWB 1. Check if the actuator of the PF lift sensor
sor does not turn off within 5 s
PF lift sensor can be turned ON/OFF to suit the rise of
after descending control.
(upper limit detec- the cassette bottom plate.
The upper limit detection sen-
tion sensor) 2. Replace the PF1 main PWB. (see page
sor does not turn on within 5 s
4-213).
after ascending control.
Engine relay PWB Replace the engine relay PWB. (see page 4-
80)

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Contents Related parts Check procedures/corrective measures
tion
1030 PF lift motor error (PF2) Bottom plate Check to see if the bottom plate can move
smoothly and repair or replace it if any prob-
The following states have lem is found.
been detected 5 times in suc-
Defective connec- 1. Reconnect the connector if its connec-
cession. tor cable or poor tion is loose.
The lift motor overcurrent is contact in the con- 2. If a wire is pinched by other component,
detected for 200 ms.
nector or has defect conduction, replace it.
After the cassette is installed, PF lift motor 2 and PF main PWB (YC7)
the upper limit detection sen- PF2 main PWB and Engine relay PWB
sor does not turn ON within 10 (YC19)
s.
During printing, after the Drive transmission 1. Check if the gears rotate smoothly. If
upper limit detection sensor system for the lift not, clean or grease the bushes and
detects off, and 1 s after motor gears.
ascending control, and the 2. Check broken gears and replace if any.
upper limit detection sensor PF lift motor 2 Replace the PF lift motor 2.
does not detect on.
PF2 main PWB 1. Check if the actuator of the PF lift sensor
The upper limit detection sen-
(PF lift sensor) can be turned ON/OFF to suit the rise of
sor does not turn off within 5 s
(upper limit detec- the cassette bottom plate.
after descending control.
tion sensor) 2. Replace the PF2 main PWB. (see page
The upper limit detection sen-
4-213).
sor does not turn on within 5 s
after ascending control. Engine relay PWB Replace the engine relay PWB. (see page 4-
80)

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Contents Related parts Check procedures/corrective measures
tion
1040 PF lift motor error (PF3) Bottom plate Check to see if the bottom plate can move
smoothly and repair or replace it if any prob-
The following states have lem is found.
been detected 5 times in suc-
Defective connec- 1. Reconnect the connector if its connec-
cession. tor cable or poor tion is loose.
The lift motor overcurrent is contact in the con- 2. If a wire is pinched by other component,
detected for 200 ms.
nector or has defect conduction, replace it.
After the cassette is installed, PF lift motor 3 and PF main PWB (YC7)
the upper limit detection sen- PF3 main PWB and Engine relay PWB
sor does not turn ON within 10 (YC19)
s.
During printing, after the Drive transmission 1. Check if the gears rotate smoothly. If
upper limit detection sensor system for the lift not, clean or grease the bushes and
detects off, and 1 s after motor gears.
ascending control, and the 2. Check broken gears and replace if any.
upper limit detection sensor PF lift motor 3 Replace the PF lift motor 3.
does not detect on.
PF3 main PWB 1. Check if the actuator of the PF lift sensor
The upper limit detection sen-
(PF lift sensor) can be turned ON/OFF to suit the rise of
sor does not turn off within 5 s
(upper limit detec- the cassette bottom plate.
after descending control.
tion sensor) 2. Replace the PF3 main PWB. (see page
The upper limit detection sen-
4-213).
sor does not turn on within 5 s
after ascending control. Engine relay PWB Replace the engine relay PWB. (see page 4-
80)
1810 Paper feeder communica- Paper feeder 1 Check the wiring connection status with the
tion error (first cassette) main unit, and if necessary, reconnecting it.
A communication error from
PF1 main PWB 1. Confirm that the wiring connector is
paper feeder is detected 10 firmly connected, and if necessary, con-
times in succession. nect the connector all the way in.
PF1 main PWB (YC3) and Engine relay
PWB (YC19)
2. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
3. Reinstall the PF firmware.
4. Replace the PF1 main PWB. (see page
4-213).
Engine relay PWB 1. Replace the engine relay PWB.(see
page 4-80)
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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tion
1820 Paper feeder communica- Paper feeder 2 Check the wiring connection status with
tion error (second cassette) PF1, and if necessary, reconnect it.
A communication error from PF2 main PWB 1. Confirm that the wiring connector is
paper feeder is detected 10
firmly connected, and if necessary, con-
times in succession. nect the connector all the way in.
PF2 main PWB (YC3) and PF1 main
PWB (YC5,4)
2. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
3. Reinstall the PF firmware.
4. Replace the PF2 main PWB.
PF1 main PWB Replace the PF1 main PWB. (see page 4-
213)
1830 Paper feeder communica- Paper feeder 3 Check the wiring connection status with
tion error (third cassette) PF2, and if necessary, reconnect it.
A communication error from PF3 main PWB 1. Confirm that the wiring connector is
paper feeder is detected 10 firmly connected, and if necessary, con-
times in succession.
nect the connector all the way in.
PF3 main PWB (YC3) and PF2 main
PWB (YC5,4)
2. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
3. Reinstall the PF firmware.
4. Replace the PF3 main PWB.
PF2 main PWB Replace the PF2 main PWB. (see page 4-
213)
1900 Paper feeder 1 EEPROM PF1 main PWB 1. Unplug the power cord from the wall out-
error (first cassette) EEPROM let, and wait five seconds. Then plug the
When writing the data, read power cord and then turn on the power
and write data does not match switch.
4 times in succession. 2. Confirm that the wiring connector to the
main unit is firmly connected, and if nec-
essary, connect the connector all the
way in.
3. Replace the PF1 main PWB.
1910 Paper feeder 2 EEPROM PF2 main PWB 1. Unplug the power cord from the wall out-
error (second cassette) (EEPROM) let, and wait five seconds. Then plug the
When writing the data, read power cord and then turn on the power
and write data does not match switch.
4 times in succession. 2. Confirm that the wiring connector with
the PF1 is firmly connected, and if nec-
essary, connect the connector all the
way in.
3. Replace the PF2 main PWB.

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tion
1920 Paper feeder 3 EEPROM PF3 main PWB 1. Unplug the power cord from the wall out-
error (third cassette) (EEPROM) let, and wait five seconds. Then plug the
When writing the data, read power cord and then turn on the power
and write data does not match switch.
4 times in succession. 2. Confirm that the wiring connector with
the PF2 is firmly connected, and if nec-
essary, connect the connector all the
way in.
3. Replace the PF3 main PWB.
2101 Developer motor steady- Developer unit 1. Check that the developer roller can be
state error (C,M,Y) rotated by hand, and if it is locked,
replace the developer unit.
After motor is stabilized, the Developer motor 1. Check if the couplings and gears rotate
stable signal is turned OFF for
smoothly, and if necessary replace
continuous 2 s. them.
2. Reconnect the connector if its connec-
tion is loose.
3. Check continuity within the connector
wire. If none, replace the wire.
Developer motor and Engine relay PWB
(YC12)
Engine relay PWB (YC1) and Main/
Engine PWB (YC4)
4. Replace the developer motor
(see page 4-158)
Engine relay PWB Replace the engine relay PWB.(see page 4-
80)
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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tion
2111 Developer motor startup Developer unit 1. Check that the developer roller can be
error (C,M,Y) rotated by hand, and if it is locked,
replace the developer unit.
After the motor starting, the
Developer motor 1. Check if the couplings and gears rotate
stable signal is not turned ON smoothly, and if necessary replace
within 3 s. them.
2. Reconnect the connector if its connec-
tion is loose.
3. Check continuity within the connector
wire. If none, replace the wire.
Developer motor and Engine relay PWB
(YC12)
Engine relay PWB (YC1) and Main/
Engine PWB (YC4)
4. Replace the developer motor
(see page 4-158)
Engine relay PWB Replace the engine relay PWB. (see page 4-
80)
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)
2201 Drum motor CY steady- Drum unit C or Check that the drum can be rotated by hand,
state error Drum unit Y and if it is locked, replace the drum unit C or
After motor is stabilized, the drum unit Y.
stable signal is turned OFF for
Defective connec- 1. Reconnect the connector if its connec-
continuous 2 s. tor cable or poor tion is loose.
contact in the con- 2. Check continuity within the connector
nector wire. If none, replace the wire.
Drum motor CY and Engine relay PWB
(YC13)
Engine relay PWB (YC1) and Main/Engine
PWB (YC4)
Drive transmission 1. Check if the couplings and gears rotate
system for the smoothly, and if not, clean or grease the
drum motor CY gears.
2. Check broken couplings and gears, and
replace if any.
Drum motor CY Replace the drum motor CY.
Engine relay PWB Replace the engine relay PWB. (see page 4-
80)
Main/Engine PWB Replace the Main/Engine PWB. (see page
4-62)

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tion
2202 Drum motor KM steady- Drum unit K or Check that the drum can be rotated by hand,
state error Drum unit M and if it is locked, replace the drum unit K or
drum unit M.
After motor is stabilized, the
Defective connec- 1. Reconnect the connector if its connec-
stable signal is turned OFF for tor cable or poor tion is loose.
continuous 2 s. contact in the con- 2. Check continuity within the connector
nector wire. If none, replace the wire.
Drum motor KM and Engine relay PWB
(YC13)
Engine relay PWB (YC1) and Main/Engine
PWB (YC4)
Drive transmission 1. Check if the couplings and gears rotate
system for the smoothly, and if not, clean or grease the
drum motor KM gears.
2. Check broken couplings and gears, and
replace if any.
Drum motor KM Replace the drum motor KM.
Engine relay PWB Replace the engine relay PWB. (see page 4-
80)
Main/Engine PWB Replace the Main/Engine PWB. (see page
4-62)
2211 Drum motor CY startup Drum unit C or Check that the drum can be rotated by hand,
error Drum unit Y and if it is locked, replace the drum unit C or
After the motor starting, the drum unit Y.
stable signal is not turned ON
Defective connec- 1. Reconnect the connector if its connec-
within 3 s. tor cable or poor tion is loose.
contact in the con- 2. Check continuity within the connector
nector wire. If none, replace the wire.
Drum motor CY and Engine relay PWB
(YC13)
Engine relay PWB (YC1) and Main/Engine
PWB (YC4)
Drive transmission 1. Check if the couplings and gears rotate
system for the smoothly, and if not, clean or grease the
drum motor CY gears.
2. Check broken couplings and gears, and
replace if any.
Drum motor CY Replace the drum motor CY.
Engine relay PWB Replace the engine relay PWB. (see page 4-
80)
Main/Engine PWB Replace the Main/Engine PWB. (see page
4-62)

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tion
2212 Drum motor KM startup Drum unit K or Check that the drum can be rotated by hand,
error Drum unit M and if it is locked, replace the drum unit K or
drum unit M.
After the motor starting, the
Defective connec- 1. Reconnect the connector if its connec-
stable signal is not turned ON tor cable or poor tion is loose.
within 3 s. contact in the con- 2. Check continuity within the connector
nector wire. If none, replace the wire.
Drum motor KM and Engine relay PWB
(YC13)
Engine relay PWB (YC1) and Main/Engine
PWB (YC4)
Drive transmission 1. Check if the couplings and gears rotate
system for the smoothly, and if not, clean or grease the
drum motor KM gears.
2. Check broken couplings and gears, and
replace if any.
Drum motor KM Replace the drum motor KM.
Engine relay PWB Replace the engine relay PWB. (see page 4-
80)
Main/Engine PWB Replace the Main/Engine PWB. (see page
4-62)
2500 Paper feed motor error Defective connec- 1. Reconnect the connector if its connec-
After the motor starting, the tor cable or poor tion is loose.
stable signal is not turned ON contact in the con- 2. Check continuity within the connector
within 3 s. nector wire. If none, replace the wire.
After motor is stabilized, the Paper conveying and developer motor and
stable signal is turned OFF for Engine relay PWB (YC15)
continuous 2 s. Engine relay PWB (YC1) and Main/Engine
PWB (YC4)
Drive transmission 1. Check if the rollers and gears rotate
system for the smoothly. If not, clean or grease the
Paper conveying bushes and gears.
and developer 2. Replace the gears, if damaged.
motor
Paper conveying Replace the Paper conveying and developer
and developer motor.
motor
Engine relay PWB Replace the engine relay PWB. (see page 4-
80)
Main/Engine PWB Replace the Main/Engine PWB. (see page
4-62)

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tion
2600 PF drive motor 1 error (PF1) Defective connec- 1. Reconnect the connector if its connec-
During the motor drive, the tor cable or poor tion is loose.
stable signal is not turned on contact in the con- 2. Check continuity within the connector
for continuous 5 s. nector wire. If none, replace the wire.
PF drive motor 1 and PF1 main PWB (YC6)
Drive transmission 1. Check if the rollers and gears rotate
system for the PF smoothly. If not, clean or grease the
drive motor bushes and gears.
2. Replace the gears, if damaged.
PF drive motor 1 Replace the PF drive motor 1.
PF main PWB Replace the PF main PWB. (see page 4-
213).
2610 PF drive motor 2 error (PF2) Defective connec- 1. Reconnect the connector if its connec-
During the motor drive, the tor cable or poor tion is loose.
stable signal is not turned on contact in the con- 2. Check continuity within the connector
for continuous 5 s. nector wire. If none, replace the wire.
PF drive motor 2 and PF2 main PWB (YC6)
Drive transmission 1. Check if the rollers and gears rotate
system for the PF smoothly. If not, clean or grease the
drive motor bushes and gears.
2. Replace the gears, if damaged.
PF drive motor 2 Replace the PF drive motor 2.
PF main PWB Replace the PF main PWB. (see page 4-
213).
2620 PF drive motor 3 error (PF3) Defective connec- 1. Reinsert the connector.
During the motor drive, the tor cable or poor 2. Check continuity within the connector
stable signal is not turned on contact in the con- wire. If none, replace the wire.
for continuous 5 s. nector PF drive motor 3 and PF3 main PWB (YC6)
Drive transmission 1. Check if the rollers and gears rotate
system for the PF smoothly. If not, clean or grease the
drive motor bushes and gears.
2. Replace the gears, if damaged.
PF drive motor 3 Replace the PF drive motor 3.
PF main PWB Replace the PF main PWB. (see page 4-
213).

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tion
2760 Primary transfer belt motor Primary transfer 1. Check that the belt can be rotated by
startup error unit hand, and if it is locked, get rid of the
After the motor starting, the factor.
stable signal is not turned ON 2. Replace the primary transfer unit.
within 3 s. Defective connec- 1. Reconnect the connector if its connec-
tor cable or poor tion is loose.
contact in the con- 2. Check continuity within the connector
nector wire. If none, replace the wire.
Primary transfer motor and Engine relay
PWB (YC14)
Engine relay PWB (YC1) and Main/Engine
PWB (YC4)
Drive transmission 1. Check if the rollers and gears rotate
system for the Pri- smoothly. If not, clean or grease the
mary transfer bushes and gears.
motor 2. Replace the gears, if damaged.
Primary transfer Replace the Primary transfer motor.
motor
Engine relay PWB Replace the engine relay PWB. (see page 4-
80)
Main/Engine PWB Replace the Main/Engine PWB. (see page
4-62)
2820 Primary transfer belt motor Primary transfer 1. Check that the belt can be rotated by
steady-state error unit hand, and if it is locked, check if foreign
After motor is stabilized, the objects such as jammed paper, and if
stable signal is turned OFF for jammed, get rid of it.
continuous 2 s. 2. Replace the primary transfer unit.
Defective connec- 1. Reconnect the connector if its connec-
tor cable or poor tion is loose.
contact in the con- 2. Check continuity within the connector
nector wire. If none, replace the wire.
Primary transfer motor and Engine relay
PWB (YC14)
Engine relay PWB (YC1) and Main/Engine
PWB (YC4)
Drive transmission 1. Check if the rollers and gears rotate
system for the Pri- smoothly. If not, clean or grease the
mary transfer bushes and gears.
motor 2. Replace the gears, if damaged.
Primary transfer Replace the Primary transfer motor.
motor
Engine relay PWB Replace the engine relay PWB. (see page 4-
80)
Main/Engine PWB Replace the Main/Engine PWB. (see page
4-62)

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tion
4001 Polygon motor (BlacK, Polygon motor 1. Confirm that the wiring connector is
Magenta) startup error (Black, Magenta) firmly connected, and if necessary, con-
After the polygon motor start- nect the connector all the way in.
ing, the motor stable signal is LSU and Main/engine PBW (YC2016)
not turned ON after 6 s. 2. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
3. Replace the LSU. (see page 4-104)
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)
4002 Polygon motor (Cyan, Yel- Polygon motor 1. Confirm that the wiring connector is
low) startup error (Cyan, Yellow) firmly connected, and if necessary, con-
After the polygon motor start- nect the connector all the way in.
ing, the motor stable signal is LSU and Main/engine PBW (YC2017)
not turned ON after 6 s. 2. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
3. Replace the LSU. (see page 4-104)
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)
4011 Polygon motor (BlacK, Polygon motor 1. Confirm that the wiring connector is
Magenta) steady error (Black, Magenta) firmly connected, and if necessary, con-
After the polygon motor stabi- nect the connector all the way in.
lization, the motor stable sig- LSU and Main/engine PBW (YC2016)
nal is turned OFF for 2. If the wiring is disconnected, short-cir-
consecutive 6 s. cuited or has ground fault, replace the
wire.
3. Replace the LSU. (see page 4-104)
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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Contents Related parts Check procedures/corrective measures
tion
4012 Polygon motor (Cyan, Yel- Polygon motor 1. Confirm that the wiring connector is
low) steady error (Cyan, Yellow) firmly connected, and if necessary, con-
After the polygon motor stabi- nect the connector all the way in.
lization, the motor stable sig- LSU and Main/engine PBW (YC2017)
nal is turned OFF for 2. If the wiring is disconnected, short-cir-
consecutive 6 s. cuited or has ground fault, replace the
wire.
3. Replace the LSU. (see page 4-104)
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)
4101 Laser BD (Black) error LSU (Black, 1. Confirm that the wiring connector is
The laser can not be received Magenta) firmly connected, and if necessary, con-
for 1 s, after the Yellow laser nect the connector all the way in.
emission starts. LSU and Main/engine PBW (YC2016)
2. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
3. Replace the LSU. (see page 4-104)
Main/Engine PWB 1. Check both main and engine firmware,
and upgrade to the latest version, if nec-
essary.
2. Replace the Main/Engine PWB. (see
page 4-62)
4102 Laser BD (Cyan) error LSU (Cyan, Yel- 1. Confirm that the wiring connector is
low) firmly connected, and if necessary, con-
The laser can not be received nect the connector all the way in.
for 1 s, after the Cyan laser LSU and Main/engine PBW (YC2017)
emission starts. 2. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
3. Replace the LSU. (see page 4-104)
Main/Engine PWB 1. Check both main and engine firmware,
and upgrade to the latest version, if nec-
essary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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Contents Related parts Check procedures/corrective measures
tion
4103 Laser BD (Magenta) error LSU (Black, 1. Confirm that the wiring connector is
The laser can not be received Magenta) firmly connected, and if necessary, con-
for 1 s, after the Magenta nect the connector all the way in.
laser emission starts. LSU and Main/engine PBW (YC2016)
2. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
3. Replace the LSU. (see page 4-104)
Main/Engine PWB 1. Check both main and engine firmware,
and upgrade to the latest version, if nec-
essary.
2. Replace the Main/Engine PWB. (see
page 4-62)
4104 Laser BD (Yellow) error LSU (Cyan, Yel- 1. Confirm that the wiring connector is
The laser can not be received low) firmly connected, and if necessary, con-
for 1 s, after the Yellow laser nect the connector all the way in.
emission starts. LSU and Main/engine PBW (YC2017)
2. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
3. Replace the LSU. (see page 4-104)
Main/Engine PWB 1. Check both main and engine firmware,
and upgrade to the latest version, if nec-
essary.
2. Replace the Main/Engine PWB. (see
page 4-62)
4201 Laser BD (Black) steady- LSU (Black, 1. Confirm that the wiring connector is
state error Magenta) firmly connected, and if necessary, con-
During the polygon motor nect the connector all the way in.
steady rotation, the BD signal LSU and Main/engine PBW (YC2016)
of Black is not detected. 2. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
3. Replace the LSU. (see page 4-104)
Main/Engine PWB 1. Check both main and engine firmware,
and upgrade to the latest version, if nec-
essary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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Contents Related parts Check procedures/corrective measures
tion
4202 Laser BD (Cyan) steady- LSU (Cyan, Yel- 1. Confirm that the wiring connector is
state error low) firmly connected, and if necessary, con-
During the polygon motor nect the connector all the way in.
steady rotation, the BD signal LSU and Main/engine PBW (YC2017)
of Cyan is not detected. 2. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
3. Replace the LSU. (see page 4-104)
Main/Engine PWB 1. Check both main and engine firmware,
and upgrade to the latest version, if nec-
essary.
2. Replace the Main/Engine PWB. (see
page 4-62)
4203 Laser BD (Magenta) steady- LSU (Black, 1. Confirm that the wiring connector is
state error Magenta) firmly connected, and if necessary, con-
During the polygon motor nect the connector all the way in.
steady rotation, the BD signal LSU and Main/engine PBW (YC2016)
of Magenta is not detected. 2. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
3. Replace the LSU. (see page 4-104)
Main/Engine PWB 1. Check both main and engine firmware,
and upgrade to the latest version, if nec-
essary.
2. Replace the Main/Engine PWB. (see
page 4-62)
4204 Laser BD (Yellow) steady- LSU (Cyan, Yel- 1. Confirm that the wiring connector is
state error low) firmly connected, and if necessary, con-
During the polygon motor nect the connector all the way in.
steady rotation, the BD signal LSU and Main/engine PBW (YC2017)
of Yellow is not detected. 2. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
3. Replace the LSU. (see page 4-104)
Main/Engine PWB 1. Check both main and engine firmware,
and upgrade to the latest version, if nec-
essary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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Contents Related parts Check procedures/corrective measures
tion
4600 LSU cleaning motor error LSU cleaning spiral 1. Execute [LSU cleaning] using [Adjust-
ment/Maintenance] of the system menu.
During driving the LSU clean- 2. Check that the drive gear and cleaning
ing motor, an over-current is spiral can rotate and they are not
detected for 5 s successively. unusually loaded, and if necessary,
clean and grease.
LSU cleaning 1. Confirm that the LSU cleaning motor has
motor been firmly attached.
2. Replace the LSU cleaning motor.
Engine relay PWB 1. Reconnect the connector if its connec-
tion is loose.
2. If a wire is pinched by other component,
or has defect conduction, replace it.
LSU cleaning motor and Engine relay PWB
(YC26)
3. Replace the engine relay PWB. (see
page 4-80)
4700 VIDEO_ASIC device error Main/Engine PWB 1. Unplug the power cord from the wall out-
1. Communication with the let, and wait five seconds. Then plug the
video ASIC has failed 5 times power cord and then turn on the power
successively. switch.
2. After writing to VIDEO 2. Check that the connectors on the Main/
ASIC, the error that the read- Engine PWB are properly connected,
ing value from same address and if not, re-connect them.
does not match occurs 8 3. Replace the Main/Engine PWB. (see
times successively. page 4-62)

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tion
5101 Main high-voltage error K Drum unit 1. Confirm that the drum or the drum screw
(40 ppm model) can rotate.
When adjusting Vpp in the 2. If it won’t rotate, replace the drum unit.
main charger adjustment, the
Main charger roller 1. Confirm that the Main charger roller unit
inflowing current of the drum unit has been firmly attached.
unit (K) is excessively low. 2. Replace the Main charger roller unit.
High-voltage PWB 1. Confirm that the wiring connector is
firmly connected, and if necessary, con-
nect the connector all the way in.
High-voltage PWB (YC101) and Main/
Engine PBW (YC7)
2. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
3. Replace the High-voltage PWB.
(see page 4-84)
Main/Engine PWB 1. Check both main and engine firmware,
and upgrade to the latest version, if nec-
essary.
2. Replace the Main/Engine PWB.
(see page 4-62)
5102 Main high-voltage error C Drum unit 1. Confirm that the drum or the drum screw
(40 ppm model) can rotate.
When adjusting Vpp in the 2. If it won’t rotate, replace the drum unit.
main charger adjustment, the Main charger roller 1. Confirm that the Main charger roller unit
inflowing current of the drum
unit has been firmly attached.
unit (C) is excessively low. 2. Replace the Main charger roller unit.
High-voltage PWB 1. Confirm that the wiring connector is
firmly connected, and if necessary, con-
nect the connector all the way in.
High-voltage PWB (YC101) and Main/
Engine PBW (YC7)
2. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
3. Replace the High-voltage PWB.
(see page 4-84)
Main/Engine PWB 1. Check both main and engine firmware,
and upgrade to the latest version, if nec-
essary.
2. Replace the Main/Engine PWB.
(see page 4-62)

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Contents Related parts Check procedures/corrective measures
tion
5103 Main high-voltage error M Drum unit 1. Confirm that the drum or the drum screw
(40 ppm model) can rotate.
When adjusting Vpp in the 2. If it won’t rotate, replace the drum unit.
main charger adjustment, the
Main charger roller 1. Confirm that the Main charger roller unit
inflowing current of the drum unit has been firmly attached.
unit (M) is excessively low. 2. Replace the Main charger roller unit.
High-voltage PWB 1. Confirm that the wiring connector is
firmly connected, and if necessary, con-
nect the connector all the way in.
High-voltage PWB (YC101) and Main/
Engine PBW (YC7)
2. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
3. Replace the High-voltage PWB.
(see page 4-84)
Main/Engine PWB 1. Check both main and engine firmware,
and upgrade to the latest version, if nec-
essary.
2. Replace the Main/Engine PWB.
(see page 4-62)

5104 Main high-voltage error Y Drum unit 1. Confirm that the drum or the drum screw
(40 ppm model) can rotate.
When adjusting Vpp in the 2. If it won’t rotate, replace the drum unit.
main charger adjustment, the
Main charger roller 1. Confirm that the Main charger roller unit
inflowing current of the drum unit has been firmly attached.
unit (Y) is excessively low. 2. Replace the Main charger roller unit.
High-voltage PWB 1. Confirm that the wiring connector is
firmly connected, and if necessary, con-
nect the connector all the way in.
High-voltage PWB (YC101) and Main/
Engine PBW (YC7)
2. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
3. Replace the High-voltage PWB.
(see page 4-84)
Main/Engine PWB 1. Check both main and engine firmware,
and upgrade to the latest version, if nec-
essary.
2. Replace the Main/Engine PWB.
(see page 4-62)

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Contents Related parts Check procedures/corrective measures
tion
6000 Broken fuser main heater Fuser unit 1. Check there is no paper jam..
wire 2. Confirm that the wiring connector is
During the warming up, the firmly connected, and if necessary, con-
temperature detected by the nect the connector all the way in.
center thermistor does not Fuser unit and Eject PWB (YC2)
reach 100 °C/212.0 °F for 20 Eject PWB (YC1) and Main/Engine PWB
s. (YC11)
3. If the wiring is disconnected, short-cir-
During the warming up, the cuited or has ground fault, replace the
temperature detected by the wire.
center thermistor does not 4. If the fuser heater is not turned on (bro-
reach the stable display tem- ken thermostat wire), replace the fuser
perature for 30 s successively, unit. (see page 4-17)
after it reach to 100 °C/212.0 Power source 1. Confirm that the wiring connector is
°F. PWB firmly connected, and if necessary, con-
nect the connector all the way in.
Power source PWB (YC105) and Main/
Engine PWB (YC20)
2. Replace the power source PWB. (see
page 4-97)
Eject PWB Replace the eject PWB.
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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tion
6020 Abnormally high fuser cen- Fuser unit 1. Check there is no paper jam..
ter thermistor temperature 2. Check if the fuser roller has foreign
objects such as the toner contamination.
The center thermistor 3. Confirm that the wiring connector is
detected the temperature firmly connected, and if necessary, con-
exceeds 240 °C/464.0 °F for 1 nect the connector all the way in.
s successively. Fuser unit and Eject PWB (YC2)
Eject PWB (YC1) and Main/Engine PWB
(YC11)
4. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
5. Replace the fuser unit.
(see page 4-17)
Power source 1. Confirm that the wiring connector is
PWB firmly connected, and if necessary, con-
nect the connector all the way in.
Power source PWB (YC105) and Main/
Engine PWB (YC20)
If the fuser heater is turned on at all times,
replace the power source PWB. (see page
4-97)
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Check if the Main/Engine PWB is prop-
erly secured with screws.
3. Replace the Main/Engine PWB. (see
page 4-62)
6030 Broken fuser center therm- Fuser unit 1. Check there is no paper jam..
istor wire 2. Confirm that the wiring connector is
firmly connected, and if necessary, con-
During the edge thermistor nect the connector all the way in.
detects more than 30 °C/86.0 Fuser unit and Eject PWB (YC2)
°F the center thermistor Eject PWB (YC1) and Main/Engine PWB
detects low temperature for (YC11)
1.6 s. 3. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
4. Replace the fuser unit. (see page 4-17)
Eject PWB Replace the eject PWB.
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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tion
6040 Fuser heater error Fuser unit 1. Check there is no paper jam..
(35/40 ppm models) 2. Confirm that the wiring connector is
Input value from the fuser firmly connected, and if necessary, con-
center thermistor is abnormal nect the connector all the way in.
for 1 s successively. Fuser unit and Eject PWB (YC2)
Eject PWB (YC1) and Main/Engine PWB
(YC11)
3. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
4. Replace the fuser unit. (see page 4-17)
Eject PWB Replace the eject PWB.
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)
6000 Broken fuser heater wire Connector pin If the interface connector pins of the fuser
6020 Abnormally high fuser center unit and the main unit are deformed owing to
6030 thermistor temperature foreign ogbjects, replace the connectors or
6220 Broken fuser center thermistor the units including the connectors.
6230 wire Triac Unplug the power cord, and then check if
Com- Abnormally high fuser edge
TRA31: for main the continuity between T1 and T2 of triac
mon thermistor temperature heater control TRA31 / TRA41 (TRA41: 35/40 ppm model
Broken fuser edge thermistor TRA41: for sub only) on the power source PWB has a resis-
wire
heater control (35/ tance of MΩ level and no short-circuit. (see
40 ppm models Figure 7-4)
only) If there is a short-circuit, replace the power
source PWB. (see page 4-97)

T1
T2

TRA31 TRA41

Figure 7-4

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tion
6050 Abnormally low fuser center Reduction of the 1. Check that no voltage drop of more than
thermistor temperature power supply volt- 10% of the rated is caused during print-
age ing.
During the warming up and 2. If the power is overloaded, change the
the printing, the center therm- AC outlet that supplies power.
istor has detected less than Fuser unit 1. Check there is no paper jam..
100 °C/212.0 °F for 1 s suc- 2. Confirm that the wiring connector is
cessively. firmly connected, and if necessary, con-
nect the connector all the way in.
Fuser unit and Eject PWB (YC2)
Eject PWB (YC1) and Main/Engine PWB
(YC11)
3. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
4. If the fuser heater is not turned on (bro-
ken thermostat wire), replace the fuser
unit.
(see page 4-17)
Power source 1. Confirm that the wiring connector is
PWB firmly connected, and if necessary, con-
nect the connector all the way in.
Power source PWB (YC105) and Main/
Engine PWB (YC20)
2. Replace the power source PWB. (see
page 4-97)
Eject PWB Replace the eject PWB.
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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tion
6200 Fuser heater error (sub Fuser unit 1. Check there is no paper jam..
heater: 35/40 ppm models) 2. Confirm that the wiring connector is
During the warming up, even firmly connected, and if necessary, con-
if the main heater (sub heater nect the connector all the way in.
for 35ppm models) is turned Fuser unit and Eject PWB (YC2)
on for 30 s successively, the Eject PWB (YC1) and Main/Engine PWB
temperature detected by the (YC11)
edge thermistor does not 3. If the wiring is disconnected, short-cir-
reach 100 °C/212.0 °F. cuited or has ground fault, replace the
During the warming up, the wire.
temperature detected by the 4. If the fuser sub-heater is not turned on
edge thermistor does not (broken thermostat wire), replace the
reach the stable display tem- fuser unit.
perature, even if the main (see page 4-17)
heater (sub heater for 35/ Power source 1. Confirm that the wiring connector is
40ppm models) is turned on
PWB firmly connected, and if necessary, con-
for 30 s successively, after the nect the connector all the way in.
temperature detected by the Power source PWB (YC105) and Main/
edge thermistor has reached
Engine PWB (YC20)
to 100 °C/212.0 °F. 2. Replace the power source PWB. (see
page 4-97)
Eject PWB Replace the eject PWB.
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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tion
6220 Abnormally high fuser Fuser unit 1. Check there is no paper jam..
heater temperature 2. Check if the fuser roller has foreign
The temperature detected by objects such as the toner contamination.
the edge thermistor exceeds 3. Confirm that the wiring connector is
240 °C/464.0 °F for 1 s suc- firmly connected, and if necessary, con-
cessively. nect the connector all the way in.
Fuser unit and Eject PWB (YC2)
Eject PWB (YC1) and Main/Engine PWB
(YC11)
4. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
5. Replace the fuser unit.
(see page 4-17)
Power source 1. Confirm that the wiring connector is
PWB firmly connected, and if necessary, con-
nect the connector all the way in.
Power source PWB (YC105) and Main/
Engine PWB (YC20)
2. If the fuser heater is turned on at all
times, replace the power source PWB.
(see page 4-97)
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Check if the Main/Engine PWB is prop-
erly secured with screws.
3. Replace the Main/Engine PWB. (see
page 4-62)
6230 Broken fuser edge thermis- Fuser unit 1. Check there is no paper jam..
tor wire 2. Confirm that the wiring connector is
firmly connected, and if necessary, con-
Fuser edge thermistor detects nect the connector all the way in.
low temperature for 1.6 s. Fuser unit and Eject PWB (YC2)
Eject PWB (YC1) and Main/Engine PWB
(YC11)
3. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
4. Replace the fuser unit. (see page 4-17)
Eject PWB Replace the eject PWB.
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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tion
6250 Abnormally low fuser edge Reduction of the 1. Check that no voltage drop of more than
thermistor temperature power supply volt- 10% of the rated is caused during print-
age ing.
During the warming up and 2. If the power is overloaded, change the
the printing, the edge thermis- AC outlet that supplies power.
tor has detected less than Fuser unit 1. Check there is no paper jam..
100 °C/212.0 °F for 1 s suc-
2. Confirm that the wiring connector is
cessively. firmly connected, and if necessary, con-
nect the connector all the way in.
Fuser unit and Eject PWB (YC2)
Eject PWB (YC1) and Main/Engine PWB
(YC11)
3. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
4. If the fuser heater is not turned on (bro-
ken thermostat wire), replace the fuser
unit.
(see page 4-17)
Power source 1. Confirm that the wiring connector is
PWB firmly connected, and if necessary, con-
nect the connector all the way in.
Power source PWB (YC105) and Main/
Engine PWB (YC20)
2. Replace the power source PWB. (see
page 4-97)
Eject PWB Replace the eject PWB.
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)
6400 Zero-cross signal error Power source 1. Confirm that the wiring connector is
During the fuser heater on, PWB firmly connected, and if necessary, con-
and no detection the discon- nect the connector all the way in.
nection 24V, the zero-cross Power source PWB (YC105) and Main/
signal is not input for 1 s suc- Engine PWB (YC20)
cessively. 2. Replace the power source PWB. (see
page 4-97)
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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tion
6610 The fuser pressure release Fuser unit 1. Check there is no paper jam..
error 2. Check if the fuser pressure can be
reduced by inverse rotation of the fuser
The fuser release sensor gear by hand.
does not turn on or off, after 3. Check if the Press-release sensor light
30 s from starting pressuriza- is blocked out by the actuator during
tion or depressurization oper- depressurization operation.
ation. 4. Confirm that the wiring connector is
firmly connected, and if necessary, con-
nect the connector all the way in.
Fuser unit (Press-release sensor) and
Eject PWB (YC2)
Eject PWB (YC1) and Main/Engine PWB
(YC11)
5. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
6. Replace the fuser unit. (see page 4-17)
Fuser motor 1. Check if the fuser motor is rotating.
2. When turning the power on, check if the
fuser motor rotates reversely.
3. Confirm that the wiring connector is
firmly connected, and if necessary, con-
nect the connector all the way in.
Fuser motor and Engine relay PWB
(YC20)
4. If the wiring is disconnected, short-cir-
cuited or has ground fault, replace the
wire.
5. Replace the fuser motor.
Eject PWB Replace the eject PWB.
Engine relay PWB Replace the engine relay PWB. (see page 4-
80)
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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tion
6910 Engine firmware unex- Main/Engine PWB 1. Unplug the power cord from the wall out-
pected error let, and wait five seconds. Then plug the
The drum motor drive contin- power cord and then turn on the power
ued more than 60 minutes switch.
except during printing. (engine 2. Check if the Main/Engine PWB is prop-
lock) erly secured with screws. (Grounding
The charge bias is turned off, check)
during the developer bias is 3. Check that the connectors on the Main/
on. Engine PWB are properly connected,
If the writing operation to the and if not, re-connect them.
EEPROM is locked for 30 sec. 4. Check the engine firmware and upgrade
Fuser temperature is abnor- to the latest version if necessary.
mal, for more than a predeter- 5. Replace the Main/Engine PWB. (see
mined time. page 4-62)
7001 Toner motor K error Toner container 1. Check that the spiral of the toner con-
Black tainer can be rotated by hand
During driving the toner motor, 2. Replace the toner container.
an over-current detection sig- Drive transmission 1. Check if the couplings and gears rotate
nal is detected for 40 ms suc- system for the smoothly, and if not, clean or grease the
cessively.
toner motor gears.
2. Check broken couplings and gears, and
When detected during warm- replace if any.
ing up
The message of "Shake the Defective connec- 1. Reconnect the connector if its connec-
toner container (K)" is dis- tor cable or poor tion is loose.
played. (exited by the opening contact in the con- 2. If a wire is pinched by other component,
and closing of the inner tray) nector or has defect conduction, replace it.
Toner motor and Engine relay PWB (YC18)
Repeat the operation above, Engine relay PWB (YC1) and Main/Engine
for three times. Four times or PWB (YC4)
more, if an over-current detec- Toner motor 1. Check how the toner motor is attached.
tion signal is detected for 5 s 2. Replace the toner motor.
successively, a service call
Engine relay PWB Replace the engine relay PWB.
error message appears.
(see page 4-80)
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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tion
7002 Toner motor C error Toner container 1. Check that the spiral of the toner con-
Cyan tainer can be rotated by hand
During driving the toner motor, 2. Replace the toner container.
an over-current detection sig-
Drive transmission 1. Check if the couplings and gears rotate
nal is detected for 40 ms suc- system for the smoothly, and if not, clean or grease the
cessively. toner motor gears.
2. Check broken couplings and gears, and
When detected during warm- replace if any.
ing up
The message of "Shake the Defective connec- 1. Reconnect the connector if its connec-
toner container (C)" is dis- tor cable or poor tion is loose.
played. (exited by the opening contact in the con- 2. If a wire is pinched by other component,
and closing of the inner tray) nector or has defect conduction, replace it.
Toner motor and Engine relay PWB (YC18)
Repeat the operation above, Engine relay PWB (YC1) and Main/Engine
for three times. Four times or PWB (YC4)
more, if an over-current detec- Toner motor 1. Check how the toner motor is attached.
tion signal is detected for 5 s 2. Replace the toner motor.
successively, a service call
Engine relay PWB Replace the engine relay PWB.
error message appears.
(see page 4-80)
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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tion
7003 Toner motor M error Toner container 1. Check that the spiral of the toner con-
During driving the toner motor, Magenta tainer can be rotated by hand
an over-current detection sig- 2. Replace the toner container.
nal is detected for 40 ms suc-
Drive transmission 1. Check if the couplings and gears rotate
cessively. system for the smoothly, and if not, clean or grease the
toner motor gears.
When detected during warm-
2. Check broken couplings and gears, and
ing up replace if any.
The message of "Shake the
toner container (M)" is dis- Defective connec- 1. Reconnect the connector if its connec-
played. (exited by the opening tor cable or poor tion is loose.
and closing of the inner tray) contact in the con- 2. If a wire is pinched by other component,
nector or has defect conduction, replace it.
Repeat the operation above, Toner motor and Engine relay PWB (YC18)
for three times. Four times or Engine relay PWB (YC1) and Main/Engine
more, if an over-current detec- PWB (YC4)
tion signal is detected for 5 s Toner motor 1. Check how the toner motor is attached.
successively, a service call 2. Replace the toner motor.
error message appears.
Engine relay PWB Replace the engine relay PWB.
(see page 4-80)
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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tion
7004 Toner motor Y error Toner container 1. Check that the spiral of the toner con-
During driving the toner motor, Yellow tainer can be rotated by hand
an over-current detection sig- 2. Replace the toner container.
nal is detected for 40 ms suc-
Drive transmission 1. Check if the couplings and gears rotate
cessively. system for the smoothly, and if not, clean or grease the
toner motor gears.
When detected during warm-
2. Check broken couplings and gears, and
ing up replace if any.
The message of "Shake the
toner container (Y)" is dis- Defective connec- 1. Reconnect the connector if its connec-
played. (exited by the opening tor cable or poor tion is loose.
and closing of the inner tray) contact in the con- 2. If a wire is pinched by other component,
nector or has defect conduction, replace it.
Repeat the operation above, Toner motor and Engine relay PWB (YC18)
for three times. Four times or Engine relay PWB (YC1) and Main/Engine
more, if an over-current detec- PWB (YC4)
tion signal is detected for 5 s Toner motor 1. Check how the toner motor is attached.
successively, a service call 2. Replace the toner motor.
error message appears.
Engine relay PWB Replace the engine relay PWB.
(see page 4-80)
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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tion
7101 Toner sensor K error Toner container 1. Check that the toner container has been
Black properly installed, and if necessary, re-
For a certain period of time, install.
the sensor output value is less 2. Check that the toner supply inlet of the
than 0.1V, or more than 3.2V. toner container can be opened by the
lever operation.
3. Replace the toner container.
Primary transfer 1. Check whether the toner supply inlet at
unit the upper side of the unit opens by
attaching the toner container.
2. Check whether the toner supply inlet at
the lower side of the unit is open by the
lever operation.
3. Check if toner is clogged in the toner
supplying pass in the cleaning section.
4. Replace the primary transfer unit.
Developer unit 1. Confirm that the connector of the devel-
(toner sensor) oper unit is firmly connected, and if nec-
essary, push the unit all the way in.
Developer unit (toner sensor) and Drum
relay PWB (YC6)
Drum relay PWB (YC1) and Main/Engine
PWB (YC15)
2. If the wire is disconnected, short-cir-
cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
3. Check if the gears and spirals in the
developer unit rotate smoothly.
4. Replace the developer unit. (see page 4-
14)
Toner motor 1. Check that the toner motor is properly
attached.
2. Check the couplings and gears can
rotate or they are not unusually loaded,
and if necessary, replace.
3. Confirm that the wiring connector is
firmly connected, and if necessary, con-
nect the connector all the way in.
Toner motor and Engine relay PWB (YC18)
Engine relay PWB (YC1) and Main/Engine
PWB (YC4)
4. If the wire is disconnected, short-cir-
cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
5. Replace the toner motor.
Drum relay PWB Replace the drum relay PWB.

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Contents Related parts Check procedures/corrective measures
tion
7101 Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)
7102 Toner sensor C error Toner container 1. Check that the toner container has been
Cyan properly installed, and if necessary, re-
For a certain period of time, install.
the sensor output value is less 2. Check that the toner supply inlet of the
than 0.1V, or more than 3.2V. toner container can be opened by the
lever operation.
3. Replace the toner container.
Primary transfer 1. Check whether the toner supply inlet at
unit the upper side of the unit opens by
attaching the toner container.
2. Check whether the toner supply inlet at
the lower side of the unit is open by the
lever operation.
3. Check if toner is clogged in the toner
supplying pass in the cleaning section.
4. Replace the primary transfer unit.
Developer unit 1. Confirm that the connector of the devel-
(toner sensor) oper unit is firmly connected, and if nec-
essary, push the unit all the way in.
Developer unit (toner sensor) and Drum
relay PWB (YC8)
Drum relay PWB (YC1) and Main/Engine
PWB (YC15)
2. If the wire is disconnected, short-cir-
cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
3. Check if the gears and spirals in the
developer unit rotate smoothly.
4. Replace the developer unit. (see page 4-
14)

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Contents Related parts Check procedures/corrective measures
tion
7102 Toner motor 1. Check that the toner motor is properly
attached.
2. Check the couplings and gears can
rotate or they are not unusually loaded,
and if necessary, replace. Replace, if
damaged.
3. Confirm that the wiring connector is
firmly connected, and if necessary, con-
nect the connector all the way in.
Toner motor and Engine relay PWB (YC18)
Engine relay PWB (YC1) and Main/Engine
PWB (YC4)
4. If the wire is disconnected, short-cir-
cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
5. Replace the toner motor.
Drum relay PWB Replace the drum relay PWB.

Main/Engine PWB 1. Check the engine firmware and upgrade

to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)
7103 Toner sensor M error Toner container 1. Check that the toner container has been
For a certain period of time, Magenta properly installed, and if necessary, re-
the sensor output value is less install.
than 0.1V, or more than 3.2V. 2. Check that the toner supply inlet of the
toner container can be opened by the
lever operation.
3. Replace the toner container.
Primary transfer 1. Check whether the toner supply inlet at
unit the upper side of the unit opens by
attaching the toner container.
2. Check whether the toner supply inlet at
the lower side of the unit is open by the
lever operation.
3. Check if toner is clogged in the toner
supplying pass in the cleaning section.
4. Replace the primary transfer unit.

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Contents Related parts Check procedures/corrective measures
tion
7103 Developer unit 1. Confirm that the connector of the devel-
(toner sensor) oper unit is firmly connected, and if nec-
essary, push the unit all the way in.
Developer unit (toner sensor) and Drum
relay PWB (YC7)
Drum relay PWB (YC1) and Main/Engine
PWB (YC15)
2. If the wire is disconnected, short-cir-
cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
3. Check if the gears and spirals in the
developer unit rotate smoothly.
4. Replace the developer unit. (see page 4-
14)
Toner motor 1. Check that the toner motor is properly
attached.
2. Check the couplings and gears can
rotate or they are not unusually loaded,
and if necessary, replace.
3. Confirm that the wiring connector is
firmly connected, and if necessary, con-
nect the connector all the way in.
Toner motor and Engine relay PWB (YC18)
Engine relay PWB (YC1) and Main/Engine
PWB (YC4)
4. If the wire is disconnected, short-cir-
cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
5. Replace the toner motor.
Drum relay PWB Replace the drum relay PWB.

Main/Engine PWB 1. Check the engine firmware and upgrade

to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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Contents Related parts Check procedures/corrective measures
tion
7104 Toner sensor Y error Toner container 1. Check that the toner container has been
Yellow properly installed, and if necessary, re-
For a certain period of time, install.
the sensor output value is less 2. Check that the toner supply inlet of the
than 0.1V, or more than 3.2V. toner container can be opened by the
lever operation.
3. Replace the toner container.
Primary transfer 1. Check whether the toner supply inlet at
unit the upper side of the unit opens by
attaching the toner container.
2. Check whether the toner supply inlet at
the lower side of the unit is open by the
lever operation.
3. Check if toner is clogged in the toner
supplying pass in the cleaning section.
4. Replace the primary transfer unit.
Developer unit 1. Confirm that the connector of the devel-
(toner sensor) oper unit is firmly connected, and if nec-
essary, push the unit all the way in.
Developer unit (toner sensor) and Drum
relay PWB (YC9)
Drum relay PWB (YC1) and Main/Engine
PWB (YC4)
2. If the wire is disconnected, short-cir-
cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
3. Check if the gears and spirals in the
developer unit rotate smoothly.
4. Replace the developer unit. (see page 4-
14)
Toner motor 1. Check that the toner motor is properly
attached.
2. Check the couplings and gears can
rotate or they are not unusually loaded,
and if necessary, replace.
3. Confirm that the wiring connector is
firmly connected, and if necessary, con-
nect the connector all the way in.
Toner motor and Engine relay PWB (YC18)
Engine relay PWB (YC1) and Main/Engine
PWB (YC4)
4. If the wire is disconnected, short-cir-
cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
5. Replace the toner motor.
Drum relay PWB Replace the drum relay PWB.

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Contents Related parts Check procedures/corrective measures
tion
7104 Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)
7200 Broken inner thermistor Developer unit K 1. Confirm that the connector of developer
(Developer) unit K is firmly connected, and if neces-
sary, push the unit all the way in.
The sensor input sampling is Developer unit K (toner sensor) and Drum
greater than the reference relay PWB (YC6)
value. Drum relay PWB (YC1) and Main/Engine
(After detection, controlled at PWB (YC4)
25°C/77.0 °F) 2. If the wire is disconnected, short-cir-
cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
3. Replace the developer unit K. (see page
4-14)

Drum relay PWB Replace the drum relay PWB.

Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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Contents Related parts Check procedures/corrective measures
tion
7221 Broken inner thermistor LSU (Magenta & 1. Confirm that the wiring connector of LSU
(LSU Magenta & Black) Black) (Magenta & Black) is firmly connected,
and if necessary, connect the connector
The sensor input sampling is all the way in.
greater than the reference LSU (Magenta & Black) and Main/
value. Engine PWB (YC2016)
(After detection, controlled at 2. If the wire is disconnected, short-cir-
25°C/77.0 °F) cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
3. Replace the LSU (Magenta & Black).
(see page 4-104)

Main/Engine PWB 1. Check the engine firmware and upgrade

to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)
7222 Broken inner thermistor LSU (Cyan & Yel- 1. Confirm that the wiring connector of LSU
(LSU Cyan & Yellow) low) (Cyan & Yellow) is firmly connected, and
if necessary, connect the connector all
The sensor input sampling is the way in.
greater than the reference LSU (Cyan & Yellow) and Main/Engine
value. PWB (YC2017)
(After detection, controlled at 2. If the wire is disconnected, short-cir-
25°C/77.0 °F) cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
3. Replace the LSU (Cyan & Yellow). (see
page 4-104)
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)
7401 Developer unit K type mis- Developer unit K Check if the developer unit of different mod-
match error (Black) els is mounted, and replace it to the correct
one.
Improper adaptation of the (see page 4-14)
main unit and developer unit
is detected.
7402 Developer unit C type mis- Developer unit C Check if the developer unit of different mod-
match error (Cyan) els is mounted, and replace it to the correct
one.
Improper adaptation of the (see page 4-14)
main unit and developer unit
is detected.

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tion
7403 Developer unit M type mis- Developer unit M Check if the developer unit of different mod-
match error (Magenta) els is mounted, and replace it to the correct
one.
Improper adaptation of the (see page 4-14)
main unit and developer unit
is detected.
7404 Developer unit Y type mis- Developer unit Y Check if the developer unit of different mod-
match error (Yellow) els is mounted, and replace it to the correct
one.
Improper adaptation of the (see page 4-14)
main unit and developer unit
is detected.
7411 Drum unit K type mismatch Drum unit K Check if the drum unit of different models is
error (Black) attached, and replace it to the correct one.
(see page 4-12)
Improper adaptation of the
main unit and drum unit is
detected.
7412 Drum unit C type mismatch Drum unit C Check if the drum unit of different models is
error (Cyan) attached, and replace it to the correct one.
(see page 4-12)
Improper adaptation of the
main unit and drum unit is
detected.

7413 Drum unit M type mismatch Drum unit M Check if the drum unit of different models is
error (Magenta) attached, and replace it to the correct one.
(see page 4-12)
Improper adaptation of the
main unit and drum unit is
detected.
7414 Drum unit Y type mismatch Drum unit Y Check if the drum unit of different models is
error (Yellow) attached, and replace it to the correct one.
(see page 4-12)
Improper adaptation of the
main unit and drum unit is
detected.

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Contents Related parts Check procedures/corrective measures
tion
7601 ID sensor L error (Left side) ID sensor L (Left 1. Clean the ID sensor surface.
side) 2. Check how the ID sensor is attached.
When the measured value of 3. Check if the error is detected after per-
the ID sensor matches any of forming the calibration.
the following. 4. Confirm that the wiring connector is
If the light potential P-wave is firmly connected, and if necessary, con-
lower than the dark potential nect the connector all the way in.
P-wave (+0.5V). ID sensor and Main/Engine PWB (YC13)
If light potential S-wave is 5. If the wiring is disconnected, short-cir-
lower than the dark potential cuited or has ground fault, replace the
S-wave. wire.
The dark potential P/S-wave 6. Replace the ID sensor.
is greater than 0.8V, or less
Main/Engine PWB 1. Check the engine firmware and upgrade
than 0.15V. to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)
7602 ID sensor R error (Right ID sensor R (Right 1. Clean the ID sensor surface.
side) side) 2. Check how the ID sensor is attached.
3. Check if the error is detected after per-
When the measured value of forming the calibration.
the ID sensor matches any of 4. Confirm that the wiring connector is
the following. firmly connected, and if necessary, con-
If the light potential P-wave is nect the connector all the way in.
lower than the dark potential ID sensor and Main/Engine PWB (YC14)
P-wave (+0.5V). 5. If the wiring is disconnected, short-cir-
If light potential S-wave is cuited or has ground fault, replace the
lower than the dark potential wire.
S-wave. 6. Replace the ID sensor.
The dark potential P/S-wave Main/Engine PWB 1. Check the engine firmware and upgrade
is greater than 0.8V, or less to the latest version if necessary.
than 0.15V.
2. Replace the Main/Engine PWB. (see
page 4-62)

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Contents Related parts Check procedures/corrective measures
tion
7611 ID sensor density error (K) Primary transfer 1. After turning OFF the power switch, dis-
During the calibration, ID sen- unit connect the power plug and connect it
sor cannot read a patch den- ID sensor again, then turning ON the power switch.
sity on the primary transfer Drum unit 2. By adjustment / maintenance of the sys-
belt normally. (Black) Developer unit tem menu, execute the color calibration.
LSU 3. Check the occurrence of this C call in
Main/Engine PWB the Event Log.
4. When the same C call is detected again,
Clean if there are any dirt or stains on
the primary transfer belt or the ID sensor
surface.
5. Check whether the shutter of ID sensor
is opened during closing the paper tray.
6. There is no improvement, replace the
primary transfer unit. (see page 4-5)
7. After performing the test print, if the poor
density occurs, check whether any fail-
ure in the drum unit, developer unit,
LSU.
8. There is no improvement, replace the
main / engine PWB. (see page 4-62)

7612 ID sensor density error (C) Primary transfer 1. After turning OFF the power switch, dis-
During the calibration, ID sen- unit connect the power plug and connect it
sor cannot read a patch den- ID sensor again, then turning ON the power switch.
sity on the primary transfer Drum unit 2. By adjustment / maintenance of the sys-
belt normally. (Cyan) Developer unit tem menu, execute the color calibration.
LSU 3. Check the occurrence of this C call in
Main/Engine PWB the Event Log.
4. When the same C call is detected again,
Clean if there are any dirt or stains on
the primary transfer belt or the ID sensor
surface.
5. Check whether the shutter of ID sensor
is opened during closing the paper tray.
6. There is no improvement, replace the
primary transfer unit. (see page 4-5)
7. After performing the test print, if the poor
density occurs, check whether any fail-
ure in the drum unit, developer unit,
LSU.
8. There is no improvement, replace the
main / engine PWB. (see page 4-62)

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Contents Related parts Check procedures/corrective measures
tion
7613 ID sensor density error (M) Primary transfer 1. After turning OFF the power switch, dis-
During the calibration, ID sen- unit connect the power plug and connect it
sor cannot read a patch den- ID sensor again, then turning ON the power switch.
sity on the primary transfer Drum unit 2. By adjustment / maintenance of the sys-
belt normally. (Magenta) Developer unit tem menu, execute the color calibration.
LSU 3. Check the occurrence of this C call in
Main/Engine PWB the Event Log.
4. When the same C call is detected again,
Clean if there are any dirt or stains on
the primary transfer belt or the ID sensor
surface.
5. Check whether the shutter of ID sensor
is opened during closing the paper tray.
6. There is no improvement, replace the
primary transfer unit. (see page 4-5)
7. After performing the test print, if the poor
density occurs, check whether any fail-
ure in the drum unit, developer unit,
LSU.
8. There is no improvement, replace the
main / engine PWB. (see page 4-62)

7614 ID sensor density error (Y) Primary transfer 1. After turning OFF the power switch, dis-
During the calibration, ID sen- unit connect the power plug and connect it
sor cannot read a patch den- ID sensor again, then turning ON the power switch.
sity on the primary transfer Drum unit 2. By adjustment / maintenance of the sys-
belt normally. (Yellow) Developer unit tem menu, execute the color calibration.
LSU 3. Check the occurrence of this C call in
Main/Engine PWB the Event Log.
4. When the same C call is detected again,
Clean if there are any dirt or stains on
the primary transfer belt or the ID sensor
surface.
5. Check whether the shutter of ID sensor
is opened during closing the paper tray.
6. There is no improvement, replace the
primary transfer unit. (see page 4-5)
7. After performing the test print, if the poor
density occurs, check whether any fail-
ure in the drum unit, developer unit,
LSU.
8. There is no improvement, replace the
main / engine PWB. (see page 4-62)

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Contents Related parts Check procedures/corrective measures
tion
7620 ID sensor timing error Primary transfer 1. After turning OFF the power switch, dis-
The ID sensor does not prop- unit connect the power plug and connect it
erly read the patch printing ID sensor again, then turning ON the power switch.
position on the primary trans- Drum unit 2. By adjustment / maintenance of the sys-
fer belt or there is poor den- Developer unit tem menu, execute the color calibration.
sity. LSU 3. Check the occurrence of this C call in
*: Automatic color registration Main/Engine PWB the Event Log.
correction does not succeed 4. When the same C call is detected again,
Clean if there are any dirt or stains on
the primary transfer belt or the ID sensor
surface.
5. Check whether the shutter of ID sensor
is opened during closing the paper tray.
6. There is no improvement, replace the
primary transfer unit. (see page 4-5)
7. After performing the test print, if the poor
density occurs, check whether any fail-
ure in the drum unit, developer unit,
LSU.
8. When checking the printing position of
the color, if there is any color shift
occurs, re-install the LSU and the drum
unit.
9. There is no improvement, replace the
main / engine PWB.

7800 Broken outer thermistor Temperature sen- 1. Confirm that the wiring connector is
sor firmly connected, and if necessary, con-
The sensor input sampling is nect the connector all the way in.
greater than the reference Outer temperature sensor and Main/Engine
value. PWB (YC24)
(After detection, controlled at 2. If the wiring is disconnected, short-cir-
25 °C/77.0 °F) cuited or has ground fault, replace the
wire.
3. Replace the temperature sensor PWB.
Main/Engine PWB 1. Check the engine firmware and upgrade
to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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tion
7901 Drum unit K EEPROM error Drum unit K 1. Unplug the power cord from the wall out-
let, and wait five seconds. Then plug the
No response is issued from power cord and then turn on the power
the device in reading/writing switch.
for 5 ms or more and this 2. Confirm that the connector of the drum
problem is repeated 5 times unit is firmly connected, and if neces-
successively. sary, push the unit all the way in.
Mismatch of reading data from 3. Confirm that the wiring connector is
two locations occurs 8 times firmly connected, and if necessary, con-
successively. nect the connector all the way in.
Mismatch between writing Drum unit and Drum relay PWB (YC2)
data and reading data occurs Drum relay PWB (YC1) and Main/Engine
8 times successively. PWB (YC15)
4. If the wire is disconnected, short-cir-
cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
5. Replace the drum unit.
(see page 4-12)
Drum relay PWB Replace the drum relay PWB.

Main/Engine PWB 1. Check the engine firmware and upgrade

to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)
7902 Drum unit C EEPROM error Drum unit C 1. Unplug the power cord from the wall out-
let, and wait five seconds. Then plug the
No response is issued from power cord and then turn on the power
the device in reading/writing switch.
for 5 ms or more and this 2. Confirm that the connector of the drum
problem is repeated 5 times unit is firmly connected, and if neces-
successively. sary, push the unit all the way in.
Mismatch of reading data from 3. Confirm that the wiring connector is
two locations occurs 8 times firmly connected, and if necessary, con-
successively. nect the connector all the way in.
Mismatch between writing Drum unit and Drum relay PWB (YC4)
data and reading data occurs Drum relay PWB (YC1) and Main/Engine
8 times successively. PWB (YC15)
4. If the wire is disconnected, short-cir-
cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
5. Replace the drum unit.
(see page 4-12)
Drum relay PWB Replace the drum relay PWB.

Main/Engine PWB 1. Check the engine firmware and upgrade

to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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tion
7903 Drum unit M EEPROM error Drum unit M 1. Unplug the power cord from the wall out-
let, and wait five seconds. Then plug the
No response is issued from power cord and then turn on the power
the device in reading/writing switch.
for 5 ms or more and this 2. Confirm that the connector of the drum
problem is repeated 5 times unit is firmly connected, and if neces-
successively. sary, push the unit all the way in.
Mismatch of reading data from 3. Confirm that the wiring connector is
two locations occurs 8 times firmly connected, and if necessary, con-
successively. nect the connector all the way in.
Mismatch between writing Drum unit and Drum relay PWB (YC3)
data and reading data occurs Drum relay PWB (YC1) and Main/Engine
8 times successively. PWB (YC15)
4. If the wire is disconnected, short-cir-
cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
5. Replace the drum unit.
(see page 4-12)
Drum relay PWB Replace the drum relay PWB.

Main/Engine PWB 1. Check the engine firmware and upgrade

to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)
7904 Drum unit Y EEPROM error Drum unit Y 1. Unplug the power cord from the wall out-
let, and wait five seconds. Then plug the
No response is issued from power cord and then turn on the power
the device in reading/writing switch.
for 5 ms or more and this 2. Confirm that the connector of the drum
problem is repeated 5 times unit is firmly connected, and if neces-
successively. sary, push the unit all the way in.
Mismatch of reading data from 3. Confirm that the wiring connector is
two locations occurs 8 times firmly connected, and if necessary, con-
successively. nect the connector all the way in.
Mismatch between writing Drum unit and Drum relay PWB (YC5)
data and reading data occurs Drum relay PWB (YC1) and Main/Engine
8 times successively. PWB (YC15)
4. If the wire is disconnected, short-cir-
cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
5. Replace the drum unit.
(see page 4-12)
Drum relay PWB Replace the drum relay PWB.

Main/Engine PWB 1. Check the engine firmware and upgrade

to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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Contents Related parts Check procedures/corrective measures
tion
7911 Developer unit K EEPROM Developer unit K 1. Unplug the power cord from the wall out-
error let, and wait five seconds. Then plug the
power cord and then turn on the power
No response is issued from switch.
the device in reading/writing 2. Confirm that the connector of the devel-
for 5 ms or more and this oper unit is firmly connected, and if nec-
problem is repeated 5 times essary, push the unit all the way in.
successively. 3. Confirm that the wiring connector is
Mismatch of reading data from firmly connected, and if necessary, con-
two locations occurs 8 times nect the connector all the way in.
successively. Developer unit and Drum relay PWB (YC6)
Mismatch between writing Drum relay PWB (YC1) and Main/Engine
data and reading data occurs PWB (YC15)
8 times successively. 4. If the wire is disconnected, short-cir-
cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
5. Replace the developer unit.
(see page 4-14)
Drum relay PWB Replace the drum relay PWB.

Main/Engine PWB 1. Check the engine firmware and upgrade

to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)
7912 Developer unit C EEPROM Developer unit C 1. Unplug the power cord from the wall out-
error let, and wait five seconds. Then plug the
power cord and then turn on the power
(1)No response is issued from switch.
the device in reading/writing 2. Confirm that the connector of the devel-
for 5 ms or more and this oper unit is firmly connected, and if nec-
problem is repeated 5 times essary, push the unit all the way in.
successively. 3. Confirm that the wiring connector is
(2)Mismatch of reading data firmly connected, and if necessary, con-
from two locations occurs 8 nect the connector all the way in.
times successively. Developer unit and Drum relay PWB (YC8)
(3)Mismatch between writing Drum relay PWB (YC1) and Main/Engine
data and reading data occurs PWB (YC15)
8 times successively. 4. If the wire is disconnected, short-cir-
cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
5. Replace the developer unit.
(see page 4-14)
Drum relay PWB Replace the drum relay PWB.

Main/Engine PWB 1. Check the engine firmware and upgrade

to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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tion
7913 Developer unit M EEPROM Developer unit M 1. Unplug the power cord from the wall out-
error let, and wait five seconds. Then plug the
power cord and then turn on the power
(1)No response is issued from switch.
the device in reading/writing 2. Confirm that the connector of the devel-
for 5 ms or more and this oper unit is firmly connected, and if nec-
problem is repeated 5 times essary, push the unit all the way in.
successively. 3. Confirm that the wiring connector is
(2)Mismatch of reading data firmly connected, and if necessary, con-
from two locations occurs 8 nect the connector all the way in.
times successively. Developer unit and Drum relay PWB (YC7)
(3)Mismatch between writing Drum relay PWB (YC1) and Main/Engine
data and reading data occurs PWB (YC15)
8 times successively. 4. If the wire is disconnected, short-cir-
cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
5. Replace the developer unit.
(see page 4-14)
Drum relay PWB Replace the drum relay PWB.

Main/Engine PWB 1. Check the engine firmware and upgrade

to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)
7914 Developer unit Y EEPROM Developer unit Y 1. Unplug the power cord from the wall out-
error let, and wait five seconds. Then plug the
power cord and then turn on the power
No response is issued from switch.
the device in reading/writing 2. Confirm that the connector of the devel-
for 5 ms or more and this oper unit is firmly connected, and if nec-
problem is repeated 5 times essary, push the unit all the way in.
successively. 3. Confirm that the wiring connector is
Mismatch of reading data from firmly connected, and if necessary, con-
two locations occurs 8 times nect the connector all the way in.
successively. Developer unit and Drum relay PWB (YC9)
Mismatch between writing Drum relay PWB (YC1) and Main/Engine
data and reading data occurs PWB (YC15)
8 times successively. 4. If the wire is disconnected, short-cir-
cuited or has ground fault, or the con-
nector pin is deformed, replace the wire.
5. Replace the developer unit.
(see page 4-14)
Drum relay PWB Replace the drum relay PWB.

Main/Engine PWB 1. Check the engine firmware and upgrade

to the latest version if necessary.
2. Replace the Main/Engine PWB. (see
page 4-62)

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Indica-
Contents Related parts Check procedures/corrective measures
tion
F000 Communication error Main/Engine PWB 1. Unplug the power cord from the wall out-
between Main/Engine PWB let, and wait five seconds. Then plug the
and Operation panel PWB power cord and then turn on the power
switch.
2. Check the wirings and connectors
between the Main/Engine PWB and the
operation panel PWB.
Operation panel PWB and Main/Engine
PWB (YC2002).
3. Replace the Main/Engine PWB. (see
page 4-62)
Operation panel Replace the operation panel PWB. (see
PWB page 4-103)
F010 Program read error Main/Engine PWB 1. Unplug the power cord from the wall out-
let, and wait five seconds. Then plug the
power cord and then turn on the power
switch.
2. If not corrected, replace the Main/Engine
PWB and check operation. (see page 4-
62)
F020 Main/Engine PWB RAM Main memory of 1. Unplug the power cord from the wall out-
checksum error the Main/Engine let, and wait five seconds. Then plug the
PWB (RAM) power cord and then turn on the power
switch.
2. If not corrected, replace the Main/Engine
PWB and check operation. (see page 4-
62)
F040 Communication error Main/Engine PWB 1. Unplug the power cord from the wall out-
between Main/Engine PWB let, and wait five seconds. Then plug the
and Print engine power cord and then turn on the power
switch.
2. Repair or replace the wire from the Main/
Engine PWB that may be grounded.
(Check short-circuit between 5V and
3.3V.)
3. Check both main and engine firmware,
and upgrade to the latest version, if nec-
essary.
4. If not corrected, replace the Main/Engine
PWB. (see page 4-62)

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Indica-
Contents Related parts Check procedures/corrective measures
tion
F050 Print engine main program Main/Engine PWB 1. Unplug the power cord from the wall out-
error let, and wait five seconds. Then plug the
power cord and then turn on the power
switch.
2. Confirm that the EEPROM has been
properly installed.
3. Check both main and engine firmware,
and upgrade to the latest version, if nec-
essary.
4. If not corrected, replace the Main/Engine
PWB. (see page 4-62)

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7-3 Image formation problems

Isolate the component an image defect has occurred from.
Main unit as the cause of defect
(A defect of image forming occurs from the rendering process that involves charging, drum, LSU, devel-
oper, and primary transferring.)

Flow of image data

Printing data from PC :

APC PWB
Printer driver Control PWB
(LSU)

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(1) Poor image (Image rendering problems: Mono-color printer engine)

(1-1)No image (1-2)No image (1-3)Image is too (1-4)The back- (1-5)White streaks
appears (entirely appears (entirely light ground is colored are printed verti-
white) black) cally

(1-6)Black or color (1-7)Black, white or color streaks appear (1-8)Uneven density vertically
streaks appear horizontally
longitudinally

(1-9)Uneven density horizontally (1-10)Black or color (1-11)Offset occurs (1-12)Part of image

dots appear on is missing
the image

(1-13)Image is out (1-14)Poor grayscale reproducibility (1-15)Unevenly repeating horizontal

of focus streaks in the printed objects Colored
spots in the printed objects

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(1-16)Grainy image (low solid image den-

sity)

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(1-1) No image appears (entirely white)

Print sample Cause of trouble

1. No or defective developing bias output.
2. Failure of the rotation of the developer roller.
3. Defective primary transfer.
4. Defective the laser output from the laser scanner unit (LSU).
5. Drum does not operate.

Trouble location Check Corrective action

1 Developer unit Select [Test page] using [Sevice
Setting] in [Adjustment/Mainte-
nance] of the system menu, and
generate four-color PGs to
check the following with the color
which is defective.
Check if the developer drive Replace the developer unit if broken.
gear is broken.

Check if the developer roller can Replace the developer unit if it has a problem.
be rotated manually. (see page 4-14)

Check dirt and deformation of Clean the contact if it is dirty.

the developer unit and high volt- Correct the contact if it is deformed so that it
age PWB contact terminal. contacts.
2 Main drive motor Check if the gear and coupling in Replace the main drive unit if broken.
unit the drive unit that drive the
developer unit are damaged.
3 Developer clutch Check if the developer clutch in Replace the paper conveying drive unit.
the conveying drive unit is con-
nected.
4 High voltage PWB 1. Check that the terminals on 1. Clean the contact if it is dirty.
the high voltage PWB surely 2. Correct the contact if it is deformed so that
contact the developer roller it contacts.
and primary transfer roller. 3. If the connector is not inserted enough,
2. Check the connection reconnect it. Replace the wire if there is no
between the high voltage continuity.
PWB and connector. Or, High voltage PWB and Main/Engine PWB
check the wire's continuity.
The high voltage PWB (devel- Replace the high voltage PWB. (see page 4-
oper, transfer*) output failure. 84)
*: 30/35 ppm model only

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 2NR/2NS/2NT-2

Trouble location Check Corrective action

5 High-voltage PWB 1. Check that the terminal on 1. Clean the contact if it is dirty.
2 the high voltage PWB 2 2. Correct the contact if it is deformed so that
(40 ppm model surely contacts the primary it contacts.
only) transfer roller. 3. If the connector is not inserted enough,
2. Check the connection reconnect it. Replace the wire if there is no
between the high voltage continuity.
PWB and connector. Or, High voltage PWB 2 and Main/Engine
check the wire's continuity. PWB
Transfer current supplied by the Replace the high-voltage PWB 2 (transfer).
high-voltage PWB 2 (transfer) is (see page 4-93)
faulty.
6 Laser scanner unit Check the connector for connec- 1. Reinsert the connector if it is incompletely
(LSU) tion. Or, check continuity of the inserted. Replace the wire if there is no
wire. continuity.
2. Replace the laser scanner unit. (see page
4-104)
7 Main/Engine PWB Check that a control signal is Replace the Main/Engine PWB. (see page 4-
output from the Main/Engine 62)
PWB.

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(1-2) No image appears (entirely black)

Print sample Cause of trouble

1. No main charging.
2. The laser from the LSU is activated simultaneously for all colors.

Trouble location Check Corrective action

1 Charger roller Check attachment of the main Reattach the main charge roller if it is improp-
charge roller. erly attached.

Check if the contact on the high Correct the contact if it is deformed so that it
voltage PWB to the main charge contacts.
roller is deformed.
2 Drum unit Check if there is the contact fail- 1. Correct the contact if it is deformed so that
ure with the high voltage PWB. it contacts.
2. Detach the drum unit.
Check the ground contact for the Correct the contact if it is deformed so that it
drum ground failure. contacts.

3 Developer unit Check if there is the contact fail- 1. Correct the contact if it is deformed so that
ure with the high voltage PWB. it contacts.
2) Attach the new fuser unit.
4 High voltage PWB Check the connector connection. If the connector is not inserted enough, recon-
Or check continuity of the wire. nect it. Replace the wire if there is no continu-
ity.
High-voltage PWB and Main/Engine PWB
There is the main charge current Replace the high voltage PWB.
failure or developer bias output (see page 4-84)
failure.
4 Laser scanner unit Failure in turning the laser diode Replace the LSU. (see page 4-104)
(LSU) on/off control failure on the LSU
PWB.
5 Main/Engine PWB The video data of the Main/ Replace the Main/Engine PWB. (see page 4-
Engine PWB is faulty. 62)

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(1-3) Image is too light

Print sample Cause of trouble

1. Variance in environments (dew formation).
2. Toner is insufficient. Or it is deteriorated (becomes had to charge).
3. Developer bias output is low.
4. Low primary transfer current output.
5. The LSU laser power is low
6. The drum surface potential is high

Trouble location Check Corrective action

1 Drum unit Check if the drum is condensed. Drum refreshing is executed. [Adjustment/
Maintenance]

2 Developer unit Select [Test page] using [Sevice

Setting] in [Adjustment/Mainte-
nance] of the system menu, and
generate four-color PGs to
check the following with the color
which is defective. (see page 6-
13)
Check if printed at low density 1. Execute the developer refresh (DEV-CLN)
continuously. if printing at low density. ([System Menu] >
[Adjustment/Maintenance])
2. If developer refreshing does not correct the
problem, perform the following.
Execute the color adjustment using
[Adjustment/Maintenance] of the system
menu. (see page 4-29)
Check if the developer bias con- Correct the contact if it is deformed so that it
nection terminal is deformed. contacts.

Developer bias setting failure. Execute the color adjustment using [Adjust-
ment/Maintenance] of the system menu. (see
page 4-29)
3 Developer unit There is the contact failure with Clean the DS roller. Replace the developer unit
the drum due to the dirt or dam- if broken.
age in the sides of the developer
roller.
Check the contact between the Attach the new fuser unit.
developer roller and drum sur-
face. (Pressure failure)
Check if the toner control sensor Replace the developer unit.
is normal.

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Trouble location Check Corrective action

4 Toner container Shake the toner container up Replace the toner container if "Add toner" is
and down about ten times and indicated or the toner supply vent does not
check the below. open.
1. Check "Add toner" indica-
tion.
2. Check if the toner supply
vent opens.
5 Toner motor Check the toner motor rotation. Check connection if the toner motor does not
rotate. Or, replace the toner motor.

6 High voltage PWB Check the contact and output of 1. Correct the contact if it is deformed so that
the high voltage connection ter- it contacts.
minal of the developer, main 2. Replace the high voltage PWB.
charge and transfer bias.* (see page 4-84)
*: 30/35 ppm model only
7 Primary transfer Check the primary transfer roller 1. Refit the primary transfer roller.
unit attachment and if the belt con- 2. Detach the primary transfer unit.
tacts the drum.
Check the high voltage contact 1. Correct the contact if it is deformed so that
deformation. it contacts.

8 High voltage PWB Primary transfer current output Replace the high voltage PWB 2.
2 failure on the high voltage PWB
(40 ppm model 2.
only)
9 LSU 1. LSU laser beam power fail- Replace the LSU.
ure. (see page 4-104)
2. Internal mirror contamination
10 Drum unit 1. Check if the eraser lamp is 1. Clean the eraser lamp if it is dirty.
dirty. 2. Replace the drum unit if it is not improved
2. Check the lamp on/off. after cleaning, it is not turned on or the sur-
3. Check if the drum surface is face is worn. (see page 4-12)
worn down.
11 Charger roller Check the contact with the high Remove foreign objects if adhering to the con-
voltage PWB. tact.

12 Main/Engine PWB Defective Main/Engine PWB. Replace the Main/Engine PWB. (see page 4-
62)

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(1-4) The background is colored

Print sample Cause of trouble

1. Toner is deteriorated in quality. (Under-charged)
2. Toner is over-supplied.
3. The volatage of the developer bias is too high.
4. The layer of toner is too thick on the developer roller (too much toner).
5. The surface potential of the drum is too low (under low temperature environ-
ment).

Trouble location Check Corrective action

1 Developer unit Select [Test page] using [Sevice
Setting] in [Adjustment/Mainte-
nance] of the system menu, and
generate four-color PGs to
check the following with the color
which is defective.(see page 6-
13)
1. Check if printed high cover- 1. Execute the color adjustment after execut-
age continuously with over- ing the developer refresh (DEV-CLN).
supply of toner or high tem- ([System Menu] > [Adjustment/Mainte-
perature. nance])
2. Check if the developer bias Clean the developer bias connection terminal,
connection terminal is dirty if it is dirty. Correct the contact if it is deformed
or deformed. so that it contacts.
3. Developer bias setting fail- Execute the color adjustment using [Adjust-
ure. ment/Maintenance] of the system menu. (see
page 4-29)
2 Drum unit 1. Check if the machine is used If the room temperature is 16 degrees C/ 60.8
at low temperature. degrees F or less, use it at 16 degrees C/ 60.8
degrees F or more.
2. Check if the drum unit is Detach the drum unit.
attached improperly. (see page 4-12)

3. Check if the ground connec- Clean the contact if it is dirty.

tion terminal is dirty or con- Apply conductive grease to the receptacle side
ductive grease is applied to bearing of the drum drive shaft if little grease is
it. applied.
4. Check if the main charge Clean the main charge roller if it is dirty. Or,
roller is dirty. replace.

3 High voltage PWB There is the contact failure or Correct the contact if it is deformed. Or, replace
output failure of the developer the high voltage PWB. (see page 4-84)
bias or main charge current from
the high voltage PWB.
4 Main/Engine PWB Defective Main/Engine PWB. Replace the Main/Engine PWB. (see page 4-
62)

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 2NR/2NS/2NT-2

Trouble location Check Corrective action

5 Toner motor Check if the toner motor is rotat- Replace the wire if it is short-circuited and the
ing constantly. Check if the wir- toner motor rotates constantly.
ing is short-circuited.

(1-5) White streaks are printed vertically

Print sample Cause of trouble

1. Dirty LSU slit glass.
2. Foreign objects inside the developer unit.
3. Internal contamination
4. Dirty drum unit inside.

Trouble location Check Corrective action

1 LSU Check if the LSU slit glass is 1. Laser Scanner cleaning is performed.
dirty. 2. Replace the LSU if it is dirty inside.(see
page 4-104)
2 Developer unit Select [Test page] using [Sevice
Setting] in [Adjustment/Mainte-
nance] of the system menu, and
generate four-color PGs. (see
page 6-13)
Check if there are foreign Clean or replace the developer unit at the color
objects in the developer unit. of problem. (see page 4-14)

3 Light path between Check if the light path is inter- If there are foreign objects on the frame
the LSU and the rupted by foreign objects such between the LSU and the drum unit, and on
drum as dust, toner, etc. the seals, remove them.

4 Drum unit Check if the main charge roller is Clean the main charge roller if it is dirty. Or,
dirty. replace. (see page 4-140)

The drum has scratches. Detach the drum unit.

Check if the eraser lamp is dirty. Clean the eraser lamp if it is dirty.

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 2NR/2NS/2NT-2

(1-6) Black or color streaks appear longitudinally

Print sample Cause of trouble

1. Dirty charge roller
2. Damaged or dirty drum unit
3. Damaged or paper dust accumulated cleaning blade

Trouble location Check Corrective action

1 Chrager roller unit Check if the main charge roller Clean the main charge roller if lines appear on
surface has lines as marks of the surface. Or replace the main charge roller.
toner. (see page 4-140)
2 Drum unit Check if the drum surface is Drum refreshing is executed. [Adjustment/
dirty. Maintenance]

Check if the drum surface is Detach the drum unit. (see page 4-12)
scratched.
Check if the cleaning blade edge
is damaged.
Check if there is wear or paper
dust pinched in.
Check if toner is accumulated at
the cleaning section.
3 Developer unit Foreign objects adhere to the 1. Clean the developer roller surface.
developer roller surface. 2. Replace the developer unit if foreign
objects are mixed in. (see page 4-14)

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 2NR/2NS/2NT-2

(1-7) Black, white or color streaks appear horizontally

Print sample Cause of trouble

1. Dirty developer unit and terminals
2. Damaged or dirty drum unit Defective grounding.
3. Dirty primary transfer roller terminals

Trouble location Check Corrective action

1 Developer unit 1. Check if the print appears in 1. If the sides of the developer roller and the
the developer roller circum- bias contact are dirty, clean them.
ference interval. 2. Execute developer refreshing (DEV-CLN).
2. Check if the sides of the ([System Menu] > [Adjustment/Mainte-
developer roller and the bias nance])
contact are dirty. 3. Replace the developer unit. (see page 4-
3. There is the cleaning failure 14)
at the developer roller sur-
face.
4. Check if there are scratches
on the sleeve roller.
2 Drum unit 1. Check if the print appears in Drum refreshing is executed. [Adjustment/
the drum circumference Maintenance]
interval.
2. Check the drum surface Lower the MC (main charge) value. [Adjust-
potential erasing failure. ment/Maintenance]

3. Check if the drum is Detach the drum unit. (see page 4-12)
scratched.

4. Check the ground terminal of 1. Check the drum unit attachment and reat-
the drum or drum drive shaft. tach it if its fixing is insufficient.
2. Detach the drum unit.
(see page 4-12)
3 Charger roller Check if the print appears in the Replace the main charge roller if deformed.
main charge roller circumference
interval.
3 Primary transfer Check if the high voltage PWB 1. Clean the contact if it is dirty.
belt contact with the primary transfer 2. Correct the contact if it is deformed so that
roller is dirty with toner. Check if it contacts.
the contact is deformed and 3. Detach the primary transfer unit.
there is no contact. (see page 4-6)
4 High voltage PWB Contact failure of the high volt- Check if how the high voltage PWB is attached
age PWB or uneven bias volt- and secure it with screws to secure grounding.
age. Or, replace. (see page 4-84)

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 2NR/2NS/2NT-2

(1-8) Uneven density vertically

Print sample Cause of trouble

1. LSU laser beam radiation uneven.
2. Improper contact on the transfer belt with the drum
3. Drum condensation.
4. The layer of toner on the developer roller uneven.

Trouble location Check Corrective action

1 LSU Laser is not output evenly from Reattach the LSU. Or, replace.
LSU. (Internal mirror drop-off) (see page 4-104)

2 Secondary trans- Check the fitting condition of the If the transfer roller and belt are at incorrect
fer roller primary transfer roller. (Uneven position, correct it and reattach them. Detach
Primary transfer pressure to the drum) the primary transfer unit.
unit (see page 4-6)
3 Drum unit 1. Check if toner spreads 1. Drum refreshing is executed. [Adjustment/
evenly on the drum. Maintenance]
2. Check if it is used at high 2. Use in the environment without condensa-
humidity. tion.
3. Check if the drum surface is 3. Detach the drum unit.
worn down. (see page 4-12)
4 Developer unit 1. Check if the toner layer thick- 1. Execute the developer refresh (DEV-CLN)
ness on the developer roller to evenly distribute the toner in the devel-
is even. oper unit. ([System Menu] > [Adjustment/
2. Check if the DS pulleys the Maintenance])
sides of the developer rollers 2. Clean the developer roller and DS pulley.
are dirty or damaged. Failure Replace the developer unit if broken. (see
of the developer roller to page 4-14)
contact the drum surface
3) Foreign objects inside the
developer unit.

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 2NR/2NS/2NT-2

(1-9) Uneven density horizontally

Print sample Cause of trouble

1. Uneven rotation of the main drive.
2. Failure of the rotation of the charger roller.
3. Improper contact on the developer unit terminals
4. Defective LSU.

Trouble location Check Corrective action

1 Main drive motor Check if drive is delivered to the 1. Check the fitting condition of the developer
section developer unit and drum unit unit and drum unit and clean the drive
smoothly. transmission section and apply grease if it
is dirty.
2. Check if the main drive unit is surely
secured with screws and reattached it.
2 Drum unit The drum surface is worn down. 1. Detach the drum unit.
(see page 4-12)

3 Charger roller 1. Check if the main charge 1. Reattach the main charge roller if it is
roller is attached wrongly. improperly attached.
2. Check if the main charge 2. Replace the main charge roller if deformed.
roller is deformed. (see page 4-140)
Check if the direction of the fur 1. Clean the main charge cleaning roller or
brush on the surface of the main replace the main charge roller. (see page
charge cleaning roller is uniform. 4-140)
4 Developer unit 1. Check if the developer bias 1. Clean the contact if it is dirty.
connection terminal of the 2. Clean the developer unit or replace it if the
developer unit is dirty with DS pulley is damaged.
toner. (see page 4-14)
2. The DS pulleys at the sides
of the developer unit are
damaged.
5 LSU Check the image if it is the phe- Replace the LSU. (see page 4-104)
nomenon from uneven laser
beam output.

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 2NR/2NS/2NT-2

(1-10) Black or color dots appear on the image

Print sample Cause of trouble

1. Dirty charge roller
2. Damaged or dirty drum unit
3. Damaged or paper dust accumulated cleaning blade

Trouble location Check Corrective action

1 Drum unit Check if the print appears in the Replace the drum unit if is scratched. (see
drum circumference interval. page 4-12)

2 Charger roller Check if the image appears in Replace the main charge roller if it appears in
the main charge roller circumfer- the circumference interval. (see page 4-140)
ence interval.
3 Developer unit Check if the developer bias 1. Clean the edge of the developer roller if
leaks. leaked.
2. If used at high altitude, set the high altitude
at [Adjustment/Maintenance] in [System
Menu].
Check if the image appears in 1. Clean the developer roller if the offset
the developer roller circumfer- image appears in the roller circumference
ence interval. interval.
2. Replace the developer unit.
(see page 4-14)

7-85
 2NR/2NS/2NT-2

(1-11) Offset occurs

Print sample Cause of trouble

1. Damaged or dirty drum unit
2. Developer bias leakage.

Trouble location Check Corrective action

1 Drum unit Check if the print appears in the If the drum unit is dirty with paper duct, toner,
drum interval. etc., clean it and reattach it. Or, replace. (see
page 4-12)
2 Developer unit Check if the offset image In case the developer unit is dirty with toner,
appears in the developer roller etc., clean it and reattach it. Or, replace. (see
circumference interval. page 4-14)

(1-12) Part of image is missing

Print sample Cause of trouble

1. Damaged or dirty drum unit
2. Deformed or dirty primary transfer belt on its surface

Trouble location Check Corrective action

1 Drum unit Check if the print appears in the Drum refreshing is executed. [Adjustment/
drum circumference interval. Maintenance]

2 Primary transfer Check if the primary transfer belt If the surface is deformed or dirty, clean the pri-
belt surface is deformed or dirty. mary transfer belt or replace the unit. (see
Primary transfer page 4-6)
unit

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(1-13) Image is out of focus

Print sample Cause of trouble

1. Drum unit condensation.
2. Dirty LSU slit glass.

Trouble location Check Corrective action

1 Drum unit The drum surface is condensed. Drum refreshing is executed. [Adjustment/
Maintenance]

2 LSU Check if the LSU slit glass is fully 3. If the LSU slit glass is dirty, execute the
dirty. laser scanner cleaning.
4. Replace the LSU. (see page 4-104)

(1-14) Poor grayscale reproducibility

Print sample Cause of trouble

1. Image adjustment problems

Trouble location Check Corrective action

1 Image adjustment Check if color adjustment is suffi- Execute the color adjustment using [Adjust-
cient. ment/Maintenance] of the system menu. (see
page 4-29)

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 2NR/2NS/2NT-2

(1-15) Unevenly repeating horizontal streaks in the printed objects Colored spots in
the printed objects

Print sample Cause of trouble

1. Installation at a high altitude.
2. Defective drum unit grounding.
3. Using the paper with high surface resistance.

Trouble location Check Corrective action

1 Developer unit Check if the operating environ- If the machine is installed in an altitude higher
ment is 1001m or more above than 1001 m sea level, change the altitude set-
sea level. (Developer bias leak- ting. (System menu > Adjustment/Maintenance
age) >Sevice setting) ([Normal], [1001 - 2000m],
[2001 - 3000m] or [3001 - 3500m])
2 Drum unit Check if there is contact failure 1. Correct the contact if it is deformed so that
between the main charger roller it contacts.
and high voltage PWB contact. 2. Reattach the drum unit (main charge
roller).
Check the ground contact for the Correct the contact if it is deformed so that it
drum ground failure. contacts.

3 Paper Check if high surface resistance Change paper to different type.

paper is used.

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(1-16) Grainy image (low solid image density)

Print sample Cause of trouble

1. Installation at a high altitude.
2. Using the paper with high surface resistance.

Trouble location Check Corrective action

1 Developer unit Check the device is installed in If the machine is installed in an altitude higher
an altitude higher than 1001m than 1001 m sea level, change the altitude set-
sea level. ting. (System menu > Adjustment/Maintenance
>Sevice setting) ([Normal], [1001 - 2000m],
[2001 - 3000m] or [3001 - 3500m])

2 Paper Check if high surface resistance Change paper to different type.

paper is used.

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(2) Poor image (Caused by transferring toner, paper conveying, or fusing: Four-color
printer engine)

(2-1)No image (2-2)Image is too (2-3)The back- (2-4)White streaks (2-5)Black or color
appears (entirely light ground is colored are printed verti- streaks appear
white) cally longitudinally

(2-6)Black, white or color streaks appear (2-7)Uneven transferring toner (2-8)Black or color
horizontally dots appear on
the image

(2-9)Image is (2-10)The leading (2-11)The leading (2-12)Paper is (2-13)Offset occurs

blurred (Shifted edge of the image edge of the image creaseed
transferring) is consistently is sporadically
misaligned with misaligned with
the original the original

(2-14)Image is (2-15)Fusing failure (2-16)Image is out (2-17)Image center

partly missing of focus does not align
(Outlines objects with the original
and white dots) center

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(2-18)Dirty paper with toner (2-19)Poor color (2-20)Color shift

reproduction

(2-21)Dirty reverse
side of paper

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 2NR/2NS/2NT-2

(2-1) No image appears (entirely white)

Print sample Cause of trouble

1. Defective the secondary transfer bias output.

Trouble location Check Corrective action

1 Secondary trans- Check if the rear cover is Check the rear cover lock. Open and close the
fer roller securely closed. rear cover.

2 High-voltage PWB 1. Check how the connector is 1. If the connector is not inserted enough,
inserted. reconnect it.
High voltage PWB to Main/ 2. Replace the wire if there is no continuity.
Engine PWB 3. Replace the high voltage PWB.
2. Check the wire's continuity. (see page 4-84,4-93)
3 Main/Engine PWB 1. Check how the connector is 1. If the connector is not inserted enough,
inserted. reconnect it.
2. Check the wire's continuity. 2. Replace the wire if there is no continuity.
3. Check if the secondary 3. Replace the Main/Engine PWB if no signal
transfer high voltage on sig- is output. (see page 4-62)
nal is input from Main/Engine
PWB.

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(2-2) Image is too light

Print sample Cause of trouble

1. The paper absorbs moisture.
2. The contact pressure at the secondary trasnfer roller and the primary transfer
belt is too low.
3. The voltage applied to the secondary transfer current is incorrect.

Trouble location Check Corrective action

1 Paper 1. Check if paper is moist. Replace paper if it is moist. If the place to store
2. Check the humidity of where paper is moist, move it to a low humidity place.
paper is stored.
2 Paper conveying Check if the rear cover is Check the rear cover lock. Open and close the
unit securely closed. rear cover.

3 Secondary trans- Check the secondary transfer If the secondary transfer roller is taken off, refit
fer roller roller position. (Pressure failure) it.

4 High voltage PWB Check if there is dirt or deforma- 1. Clean the contact if it is dirty.
tion in the contact of the high 2. Correct the contact if it is deformed so that
voltage PWB to the secondary it contacts.
transfer roller. (Secondary trans- 3. Replace the high voltage PWB.
fer bias error) (see page 4-84,4-93)

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(2-3) The background is colored

Print sample Cause of trouble

1. Defective primary transfer unit grounding.
2. Dirty secondary transfer roller

Trouble location Check Corrective action

1 Primary transfer Check if the belt surface is whit- Replace the primary transfer unit if the entire
unit ened. belt surface is whitened and is not improved
after executing the calibration.
(see page 4-6)
Check if the ground plate of the If the ground plate is deformed, correct it to
primary transfer unit is secure ground.
deformed.
2 Secondary trans- 1. Check the transfer bias 1. Correct the contact to securely contact the
fer roller ground failure. roller shaft.
2. Check if the roller full surface 2. Clean or replace the secondary transfer
is dirty. roller if its full surface is dirty.

(2-4) White streaks are printed vertically

Print sample Cause of trouble

1. Dirty primary transfer unit
2. Dirty secondary transfer roller

Trouble location Check Corrective action

1 Primary transfer Check if the while streaks match 1. Clean the primary transfer belt if contami-
unit the position of dirt on the primary nated.
transfer belt. 2. Detach the primary transfer unit.
(see page 4-6)
2 Secondary trans- Check if the while streaks match Clean the secondary transfer belt if contami-
fer roller the position of dirt on the transfer nated. Replace the secondary transfer roller if
roller. it is not improved after cleaning it. (see page 4-
28)
3 Eject guide Check if paper slides the eject Correct the ribs if white steaks appear at the
guide ribs intensely. position of the ribs but paper is not wavy.

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(2-5) Black or color streaks appear longitudinally

Print sample Cause of trouble

1. Poor voltage impressed for the primary transfer belt cleaning.
2. Dirty secondary transfer roller
3. Dirty separation brush.
4. Dirty fuser unit inside.

Trouble location Check Corrective action

1 Primary transfer Check if paper dust is accumu- 1. Clean the cleaning section if paper dust
unit lated around the cleaning sec- accumulates.
tion. 2. Replace the primary transfer unit if it is not
improved after cleaning it.
(see page 4-6)
Check dirt and deformation of 1. Clean the connector and connection termi-
the cleaning bias connector and nal if they are dirty.
high voltage terminals. 2. Correct the contact if deformed.
3. Replace the high voltage PWB.
(see page 4-84,4-93)
4. Replace the high voltage PWB 2, for 40
ppm printer model.

Check dirt or scratch in the inter- Replace the primary transfer unit if it is dirty or
val of the primary transfer belt has scratches.
circumference. (see page 4-6)
2 Secondary trans- Check dirt, deformation or wear 1. Clean the secondary transfer roller if con-
fer roller of the secondary transfer roller. taminated.
2. Replace the secondary transfer roller if it is
deformed or worn out.
(see page 4-28)
3 Separation brush Check if the separation needles Clean the separation needles if they are dirty.
are dirty with paper dust and
toner.
4 Fuser unit 1. The paper separation plate is 1. Clean the paper separation plate if contam-
contaminated with toner. inated.
2. Check if the paper weight 2. Change the setting if the paper weight set-
setting matches the paper to ting does not match the paper to use.
use.
5 Eject guide The ribs are dirty with toner. Clean it if dirty.

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(2-6) Black, white or color streaks appear horizontally

Print sample Cause of trouble

1. Defective primary transfer unit grounding.
2. Dirty secondary transfer roller

Trouble location Check Corrective action

1 Primary transfer Check the image in the interval 1. Clean the primary transfer belt with soft
unit of the primary transfer belt cir- cloth.
cumference. Belt deformation 2. Replace the primary transfer unit if it is not
improved after cleaning it. (see page 4-6)
2 Secondary trans- 1. Check if the right cover is 1. Close the right cover slightly.
fer roller closed. 2. Refit the press spring for the secondary
2. Check if the secondary transfer roller. Replace it if is deformed.
transfer roller surely contacts
the transfer belt.
3 Fuser unit Check if the image appears in Clean the fuser roller if it appears in the image.
the fuser roller circumference Replace the fuser unit if it is not improved after
interval. cleaning it. (see page 4-17)

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(2-7) Uneven transferring toner

Print sample Cause of trouble

1. Defective primary transfer unit grounding.
2. Dirty secondary transfer roller

Trouble location Check Corrective action

1 Primary transfer Check if paper dust is accumu- 1. Clean the cleaning section if paper dust
unit lated around the cleaning sec- accumulates.
tion. 2. Replace the primary transfer unit if it is not
improved after cleaning it. (see page 4-6)
Check dirt and deformation of 1. Clean the connector or connection terminal
the cleaning bias connector and if dirty.
high voltage terminals. 2. Correct the contact if deformed.
3. Replace the high voltage PWB.
(see page 4-84,4-93)
Replace the high voltage PWB 2 for the
40ppm model.
Primary transfer belt is dirty or Detach the primary transfer unit.
has scratches. (see page 4-6)

2 Secondary trans- Check dirt, deformation or wear 1. Clean the secondary transfer belt if con-
fer roller of the secondary transfer roller. taminated.
2. Replace the secondary transfer roller if it is
not improved after cleaning it. (see page 4-
28)
3 Fuser unit Check if the roller and fuser Replace the fuser unit if the roller and fuser
pressure release mechanism are pressure release mechanism are deformed,
deformed, worn or damaged. worn or damaged. (see page 4-17)

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(2-8) Black or color dots appear on the image

Print sample Cause of trouble

1. Damaged or dirty primary transfer belt
2. Dirty secondary transfer roller
3. Dirty fuser unit inside.

Trouble location Check Corrective action

1 Primary transfer Check the primary transfer belt 1. Clean the cleaning section.
unit cleaning. 2. Replace the unit if it is not improved after
cleaning it.
(see page 4-6)
Check dirt or scratch in the inter- Detach the primary transfer unit.
val of the primary transfer belt (see page 4-6)
outer circumference.
2 Secondary trans- Check if ditty appears in the 1. Clean the secondary transfer roller if it
fer roller interval of the secondary transfer appears in the image.
roller circumference. 2. Replace the secondary transfer roller if it is
not improved after cleaning it. (see page 4-
28)
3 Fuser unit Check if the image appears in 1. Clean the fuser roller or fuser belt if it
the fuser roller or fuser belt cir- appears in the image.
cumference interval. 2. Replace the fuser unit if it is not improved
after cleaning it. (see page 4-17)

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(2-9) Image is blurred (Shifted transferring)

Print sample Cause of trouble

1. The paper used does not conform to the specification.
2. Imbalanced fuser unit pressures.

Trouble location Check Corrective action

1 Paper 1. Check if the paper is within 1. If paper type is out of specification, use
the specification. proper paper.
2. Check if the paper type and 2. If the paper setting is improper, set it in
weight settings are proper. accordance with the paper.
2 Fuser unit 1. Check the pressure balance 1. Replace the fuser unit in case of the bal-
between the left and right ance failure. (see page 4-17)
sides of the fuser unit. 2. Replace the fuser unit if deformed. (see
2. Check if the paper entry page 4-17)
guide to the fuser is
deformed.
3 Paper conveying Check if the paper conveying If the drive is not smooth, apply grease to the
section drive is smooth. gears.

4 Conveying guide The paper conveying guide is Replace the paper conveying guide if
deformed. deformed.

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(2-10) The leading edge of the image is consistently misaligned with the original

Print sample Cause of trouble

1. Improperly adjusted leading edge timing.
2. Improper amount of slack of the original document before the registration.

Trouble location Check Corrective action

1 Registration roller 1. Check whether the leading If adjustment is insufficient, adjust the leading
edge timing is adequately edge timing by the maintenance menu in Prod-
adjusted. uct Library.
2. Check if the registration sen- When the paper feeding failure has occurred,
sor ON timing (original loop clean the paper feed roller or replace the paper
amount) is proper. to check if the failure is improved.

(2-11) The leading edge of the image is sporadically misaligned with the original

Print sample

Trouble location Check Corrective action

1 Registration clutch, Check if the registration roller is 1. Clean the registration roller.
Registration roller dirty and the registration clutch 2. Reattach it if it is improperly attached.
and paper conveying and devel- 3. Replace the paper conveying drive unit if it
oper motor operate smoothly. does not move smoothly.

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(2-12) Paper is creaseed

Print sample

Trouble location Check Corrective action

1 Paper side regis- Check if the paper width guide If the paper size does not match, align the side
tration set position matches the paper. registration cursors to the paper edges.

2 Paper 1. Check if it is curled or wavy. 1. If paper is curled r wavy, replace it.

2. Check if the place to store 2. If the place to store paper is moist, move it
paper is moist. to a low humidity place.
3 Registration roller Balance is not secured between Attach the parts with the regular spring pres-
the front and rear springs. sure.

4 Fuser unit The fuser pressure spring of the Detach the fuser unit. (see page 4-17)
fuser unit is faulty.

(2-13) Offset occurs

Print sample

Trouble location Check Corrective action

1 Paper 1. Check if the paper is within 1. If paper type is out of specification, use
the specification. proper paper.
2. Check if the paper type and 2. Set paper type and weight.
weight settings are proper.
2 Primary transfer Check offset image in the inter- 1. Clean the primary transfer belt if it appears
unit val of the primary transfer belt in the outer circumference interval.
circumference. 2. Make the cleaning bias contact of the
cleaning roller securely contact the contact
of the high voltage PWB.
3. Detach the primary transfer unit.
(see page 4-6)

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Trouble location Check Corrective action

3 Fuser unit Check if dirt appears on the If the roller of the fuser unit is dirty, clean it or
image in the fuser roller circum- replace the unit.
ference interval. (see page 4-17)

(2-14) Image is partly missing (Outlines objects and white dots)

Print sample

Trouble location Check Corrective action

1 Paper Check if paper is moist. Check if 1. Replace paper if it is moist. If the place to
the place to store paper is moist. store paper is moist, move it to a low
humidity place.
2. Install the cassette heater if necessary.
2 Primary transfer Check dirt or scratch in the inter- 1. Clean the primary transfer belt with soft
unit val of the primary transfer belt cloth.
circumference. 2. Detach the primary transfer unit.
(see page 4-6)
3 Secondary trans- Check if ditty appears in the 1. Clean the secondary transfer roller.
fer roller interval of the secondary transfer 2. Replace the secondary transfer roller.
roller circumference. (see page 4-28)

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(2-15) Fusing failure

Print sample

Trouble location Check Corrective action

1 Paper 1. Check if the paper is within 1. If paper type is out of specification, use
the specification. proper paper.
2. Check if the paper type and 2. Set the paper weight to match the paper.
weight settings are proper.
2 Paper weight set- Check the paper weight setting. If the paper weight setting is insufficient, set
ting the paper weight in accordance with the paper
thickness.
3 Fuser unit Fuser pressure setting (spring) is Detach the fuser unit.
faulty. (see page 4-17)

(2-16) Image is out of focus

Print sample

Trouble location Check Corrective action

1 Paper Check if paper is moist. Check if 1. Replace paper if it is moist.
the place to store paper is moist. 2. If the place to store paper is moist, move it
to a low humidity place.

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(2-17) Image center does not align with the original center

Print sample

Trouble location Check Corrective action

1 Paper setting Check if paper is set correctly. Set paper if it is not set correctly.

2 Image position Check the center alignment If adjustment is insufficient, adjust the center
adjustment during writing images. line by the maintenance menu in Product
Library.

(2-18) Dirty paper with toner

Print sample Cause of trouble

1. The toner scattering inside the machine, during con-
tinuous high density printing

Trouble location Check Corrective action

1 Conveying guide Check if the conveying guide is Clean the developer unit, drum unit and pri-
dirty with toner. mary transfer unit if the conveying guide is dirty
with toner.
2 Toner scattering Check if a large volume with high Clean the machine inside.
inside the machine coverage was continuously out-
put.

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(2-19) Poor color reproduction

Print sample

Trouble location Check Corrective action

1 Paper Check if paper is moist. Check if 1. Replace paper if it is moist.
the place to store paper is moist. 2. If the place to store paper is moist, move it
to a low humidity place.
2 Paper specification Granular image (slightly uneven 1. Check the paper specification and use
gloss) appears in the high den- proper paper.
sity image area. 2. Change to color paper if rough paper for
monochrome print is used.
3 Paper type Check paper type and weight. The paper type and weight do not match the
paper, set them properly.

4 Image adjustment Check if the target density Execute the color adjustment using [Adjust-
adjustment was done. ment/Maintenance] of the system menu. (see
page 4-29)

5 Developer unit Toner is easily. Execute the color adjustment (calibration) after
executing the developer refresh (DEV-CLN).
([System Menu] > [Adjustment/Maintenance])
6 Drum unit Check the drum surface conden- Drum refreshing is executed. ([System Menu]
sation. > [Adjustment/Maintenance])

7 Printer driver set- Check the printer color table 1. Change the printer color table selection to
ting selection. the proper mode in the color reproduction
mode in [Imaging] tab of the printer driver.
2. Download necessary color tables.
Check the printer data is CMYK. If the printer data is CMYK, select the proper
mode in the KPDL color conversion process.

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(2-20) Color shift

Print sample Cause of trouble

1. Defective ID sensor density detection
2. Primary transfer belt is deteriorated. (whitened)

Trouble location Check Corrective action

1 Color Registration Check if the color registration Unplug the power cord from the wall outlet, and
Adjustment has been adjusted before exe- perform the power reset, and execute the cali-
cuting the color adjustment (cali- bration by [Adjustment / Maintenance] in the
bration). system menu, and then execute the color reg-
istration. (see page 4-29)
2 ID sensor Check if the ID sensor shutter is 1. If the sensor shutter is not open, correct it
open during the color adjustment to open.
(calibration). 1. Clean the ID sensor surface. Or replace.

3 Primary transfer Check if the ID sensor can Execute the color adjustment (calibration) and
unit detect the image density cor- replace the primary transfer unit if the color
rectly after executing the color registration patches appear twice at the left
adjustment (calibration) with and right sides of the transfer belt. (see page 4-
degraded belt. 6)
Check the belt skew. Attach the new primary transfer unit. Replace
the frame if deformed.

4 Main/Engine PWB Extreme color registration shift. Replace the Main/Engine PWB.
(The motor speed is not correctly (see page 4-62)
controlled.)

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(2-21) Dirty reverse side of paper

Print sample

Trouble location Check Corrective action

1 Secondary trans- Check if the secondary transfer 1. Clean the secondary transfer roller.
fer roller roller is dirty. 2. Check if the transfer bias terminal contacts
the roller.
2 Fuser pressure Check if foreign objects such as 1. Clean the fuser pressure roller if foreign
roller toner dirt, etc. mix in or adhere to objects adhere.
the fuser press roller. 2. If the paper thickness setting does not
match the paper, set the proper paper
thickness.
3 Conveying guide The conveying guide is dirty with Clean the developer unit, drum unit and pri-
toner. mary transfer unit if the conveying guide is dirty
with toner.

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7-4 Electric problems

If the part causing the problem was not supplied, use the unit including the part for replacement.
Troubleshooting each failure must be in the order of the numbered symptoms.

Problem Causes Check procedures/corrective measures

(1)The machine 1. No electricity at the Measure the input voltage.
does not operate power outlet.
when the power
2. The power cord is Check the connection of the connectors.
switch is turned on.
not plugged improp-
erly.
3. Broken power cord. Check for continuity. If none, replace the wire.
4. Defective power Checkcontinuity across the contacts. If none, replae the
switch. power switch.
5. Defective power Replace the power source PWB. (see page 4-97)
source PWB.
6. Defective Engine Replace the engine relay PWB. (see page 4-80)
relay PWB.
7. Defective Main/ Replace the Main/Engine PWB and check operation. (see
Engine PWB. page 4-62)
(2) 1. Defective connector Reconnect the connector if its connection is loose. Also
Duplex eject motor cable or poor con- check the continuity within the connector wire. If none,
does not operate. tact in the connector replace the wire.
Duplex eject motor and Engine relay PWB (YC20)
Engine relay PWB (YC1) and Main/Engine PWB (YC4)
2. Defective drive trans- Check if the rollers and gears rotate smoothly. If not, clean
mission system. or grease the bushes and gears. Check broken gears and
replace if any.
3. Defective motor. Reattach the duplex eject motor. Or replace.
4. Defective PWB. Replace the engine relay PWB. (see page 4-80)
Replace the Main/Engine PWB. (see page 4-62)
(3) 1. Defective connector Reconnect the connector if its connection is loose. Also
Toner motor does cable or poor con- check the continuity within the connector wire. If none,
not operate. tact in the connector replace the wire.
Toner motor and Engine relay PWB (YC18)
Engine relay PWB (YC4) and Main/Engine PWB (YC1)
2. Defective motor. Reattach the toner motor. Or replace.
3. Defective PWB. Replace the engine relay PWB. (see page 4-80)
Replace the Main/Engine PWB. (see page 4-62)
(4) 1. Defective connector Reconnect the connector if its connection is loose. Also
Power source fan cable or poor con- check the continuity within the connector wire. If none,
motor does not tact in the connector replace the wire.
rotate. Power source fan motor and Main/Engine PWB (YC19)
2. Defective motor. Replace the power source fan motor.
3. Defective PWB. Replace the Main/Engine PWB.
(see page 4-62)

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Problem Causes Check procedures/corrective measures

(5) 1. Defective connector Reconnect the connector if its connection is loose. Also
LSU fan motor cable or poor con- check the continuity within the connector wire. If none,
does not operate. tact in the connector replace the wire.
LSU fan motor and Engine relay PWB (YC23,24)
Engine relay PWB (YC1) and Main/Engine PWB (YC4)
2. Defective motor. Replace the LSU fan motor.
3. Defective PWB. Replace the engine relay PWB. (see page 4-80)
Replace the Main/Engine PWB. (see page 4-62)
(6) 1. Defective connector Reinsert the connector. Also check the continuity within the
Container fan cable or poor con- connector wire. If none, replace the wire.
motor does not tact in the connector Container fan motor and engine relay PWB (YC24)
operate.
2. Defective motor. Replace the container fan motor.
3. Defective PWB. Replace the Main/Engine PWB. (see page 4-62)
(7) 1. Defective connector Reinsert the connector. Also check the continuity within the
Paper feed clutch cable or poor con- connector wire. If none, replace the wire.
does not operate. tact in the connector Paper feed clutch and Engine relay PWB (YC15)
Engine relay PWB (YC1) and Main/Engine PWB (YC4)
2. Defective clutch. Replace the conveying drive unit.
3. Defective PWB. Replace the engine relay PWB. (see page 4-80)
Replace the Main/Engine PWB. (see page 4-62)

(8) 1. Defective connector Reconnect the connector if its connection is loose. Also
Registration clutch cable or poor con- check the continuity within the connector wire. If none,
does not operate. tact in the connector replace the wire.
Registration clutch and Main/Engine PWB (YC21)
2. Defective clutch. Replace the conveying drive unit.
3. Defective PWB. Replace the Main/Engine PWB. (see page 4-62)
(9) 1. Defective connector Reconnect the connector if its connection is loose. Also
Duplex clutch does cable or poor con- check the continuity within the connector wire. If none,
not operate. tact in the connector replace the wire.
(35/40 ppm printer Duplex clutch and Engine relay PWB (YC15)
model only) Engine relay PWB (YC1) and Main/Engine PWB (YC4)
2. Defective clutch. Replace the conveying drive unit.
3. Defective PWB. Replace the Main/Engine PWB. (see page 4-62)

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Problem Causes Check procedures/corrective measures

(10) 1. Defective connector Reconnect the connector if its connection is loose. Also
Developer clutch cable or poor con- check the continuity within the connector wire. If none,
does not operate. tact in the connector replace the wire.
Developer clutch and Engine relay PWB (YC15)
Engine relay PWB (YC1) and Main/Engine PWB (YC4)
2. Defective clutch. Replace the conveying drive unit.
3. Defective PWB. Replace the engine relay PWB. (see page 4-80)
Replace the Main/Engine PWB. (see page 4-62)
(11) 1. Defective connector Reconnect the connector if its connection is loose. Also
Middle clutch does cable or poor con- check the continuity within the connector wire. If none,
not operate. tact in the connector replace the wire.
Paper feed clutch and Engine relay PWB (YC15)
Engine relay PWB (YC1) and Main/Engine PWB (YC4)
2. Defective clutch. Replace the conveying drive unit.
3. Defective PWB. Replace the engine relay PWB. (see page 4-80)
Replace the Main/Engine PWB. (see page 4-62)
(12) 1. Defective connector Reconnect the connector if its connection is loose. Also
MP solenoid does cable or poor con- check the continuity within the connector wire. If none,
not operate. tact in the connector replace the wire.
MP solenoid and Engine relay PWB (YC16)
Engine relay PWB (YC1) and Main/Engine PWB (YC4)
2. Defective the sole- Replace the MP solenoid.
noid.
3. Defective PWB. Replace the engine relay PWB. (see page 4-80)
Replace the Main/Engine PWB. (see page 4-62)
(13) 1. Defective connector Reconnect the connector if its connection is loose. Also
The message cable or poor con- check the continuity within the connector wire. If none,
requesting paper to tact in the connector replace the wire. Cassette PWB and Engine relay PWB
be loaded is shown (YC8)
when paper is
2. Deformed actuator. Check and replace if necessary.
present on the cas-
sette. 3. Defective sensor. Replace the cassette PWB.
4. Defective PWB. Replace the engine relay PWB. (see page 4-80)
(14) 1. Defective connector Reconnect the connector if its connection is loose. Also
The message cable or poor con- check the continuity within the connector wire. If none,
requesting paper to tact in the connector replace the wire.
be loaded is shown MP paper sensor and Engine relay PWB (YC18)
when paper is
2. Deformed actuator. Check and replace if necessary.
present on the MP
tray. 3. Defective sensor. Replace theMP paper sensor.
4. Defective PWB. Replace the engine relay PWB. (see page 4-80)

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Problem Causes Check procedures/corrective measures

(15) 1. Defective connector Reinsert the connector. Also check the continuity within the
The size of paper cable or poor con- connector wire. If none, replace the wire.
on the MP tray is tact in the connector Cassette size detection switch and Engine relay PWB
not displayed cor- (YC5)
rectly.
2. Defective switch. Replace the cassette size detection switch.
3. Defective PWB. Replace the engine relay PWB. (see page 4-80)
(16) 1. Defective connector Reinsert the connector. Also check the continuity within the
A paper jam in the cable or poor con- connector wire. If none, replace the wire.
paper feed, paper tact in the connector Registration sensor and Main/Engine PWB (YC12)
conveying or eject Eject sensor, Eject full sensor and Main/Engine PWB
section is indi- (YC11)
cated when the
power switch is 2. A piece of paper torn Check and remove torn paper if any.
turned on.
from paper is caught
around PF paper
feed sensor, eject
sensor or paper full
sensor.
3. Defective sensor. Replace the registration sensor, PF paper feed sensor,
paper full sensor or eject sensor.
4. Defective PWB. Replace the engine relay PWB. (see page 4-80)
Replace the Main/Engine PWB. (see page 4-62)
(17) 1. Defective connector Reconnect the connector if its connection is loose. Also
A message indicat- cable or poor con- check the continuity within the connector wire. If none,
ing cover open is tact in the connector replace the wire.
displayed when the Interlock switch and Power source PWB (YC104)
rear cover is 2. Defective switch. Check the interlock switch, and if necessary, replace it.
closed.
3. Defective PWB. Replace the power source PWB. (see page 4-97)

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7-5 Mechanical problems

If the part causing the problem was not supplied, use the unit including the part for replacement.

Problem Causes/check procedures Corrective Action

(1) Check if the surfaces of the following roll- Clean with a wet cloth.
No primary paper ers are dirty with paper dust.
feed. Pickup roller
Paper feed roller
MP paper feed roller
Check if the following rollers are Check and replace if deformed.(see
deformed. page P.4-25)
Pickup roller
Paper feed roller
MP paper feed roller
Paper feed unit installed incorrectly. Check and repair if necessary.
(2) Check if the surfaces of the following roll- Clean with a wet cloth.
No secondary paper ers are dirty with paper dust.
feed. Lower registration roller
Lower registration roller
Paper conveying unit is improperly Check and repair if necessary.
attached
(3) Paper width guide in the cassette Check the paper width guide is attached
Skewed paper feed. installed incorrectly. properly and reattach or replace if nec-
essary.
(4) 1. Check if the paper is excessively Change the paper if the paper is exces-
Multiple sheets of curled. sively curled.
paper are fed.
2. The paper in the cassette is not set Load the paper correctly.
correctly.
3. Check if the retard roller is abraded. Replace the retard roller if it is worn.
(see page 4-20)
(5) Check if the paper is excessively curled. Change the paper if the paper is exces-
Paper jams. sively curled.
Check if the contact between the upper Check and repair if necessary.
and lower registration rollers is correct.
Check if the heat roller or press roller is Check and replace the fuser unit. (see
extremely dirty or deformed. page 4-17)
(6) Check if the developer unit, drum unit, Clean the developer unit, drum unit, and
Toner drops on the and primary transfer unit is extremely primary transfer unit.
paper conveying path. dirty.
(7)The message of 1. Check that the spiral of the toner con- Replace the toner container.
toner replenishing tainer can be rotated.
does not disappear. 2. Check whether the toner supply inlet
(K) opens by the lever operation.
Check if the roller in the developer unit 1. Replace the developer unit.
rotates and the developer clutchs, etc., 2. Replace the conveying drive unit.
that transfer the drive are damaged.

7-112
 2NR/2NS/2NT

Problem Causes/check procedures Corrective Action

(8)The message of 1. Check that the spiral of the toner con- Replace the toner container.
toner replenishing tainer can be rotated.
does not disappear. 2. Check whether the toner supply inlet
(C,M,Y) opens by the lever operation.
Check if the roller in the developer unit 1. Replace the developer unit.
rotates and the couplings, etc., that 2. Replace the main drive unit.
transfer the drive are damaged.
(9) Check if the rollers, pullys and gears Grease the bushes and gears.
Abnormal sound is rotate smoothly.
generated.
Check if the roller in the developer unit If the developer roller is locked, replace
rotates. the developer unit.
Check if the problem has occured 1. If the waste toner is clogged inside
between the cleaning section in the pri- the cleaning unit, clean it.
mary transfer unit and the drive transmis- 2. If it is the sliding noise from the side
sion section of the main unit. of the waste joint gear in the main
body, grease the gear.
Check the occurrence from the fuser unit. Check if the meshing of gears is proper,
During printing drive, or at the power is and if necessary, reattach the fuser unit.
turned on, the fuser motor is rotated Grease the fuser release drive gear.
reversely for the pressure releasing
operation.

Check if it occurrs when the cassette lift Check if the cassette lift motor is
motor operates. attached properly, and if necessary,
reattach it.

7-113
 2NR/2NS/2NT

This page is intentionally left blank.

7-114
 2NR/2NS/2NT

8 PWBs
8-1Description for PWB
(1) Main/Engine PWB
(1-1) Connector position
7 1 1
8
YC7 YC2002 1 5 YC11
1 8 YC2003
YC1
YC9
1
YC2
1 YC2009
19 YC3
4 1
1 2
YC2018
4 1 YC2007
YC24
5
YC20

1
YS2000 1
9
YC2000
YC5
1

YC6
1 YC2017 YC2016 YC12 YC19
1 2
3 1

YC2005 YC2006
1 30 1 30
1 2
YC4 YC14 YC15 YC13 YC21 1 5 1 5
1 18 1 5 1 11 1 5

Figure 8-1

(1-2) PWB photograph

Figure 8-2

8-1
 2NR/2NS/2NT

(1-3) Connector lists

Connector Pin Signal I/O Voltage Description
YC2 1 +24V1 O DC24V DC24V power output
Connected to 2 GND - - Ground
the engine
3 GND - - Ground
relay PWB
4 GND - - Ground
5 GND - - Ground
6 +24V3 O DC24V DC24V power output
7 +24V3 O DC24V DC24V power output
8 +24V3 O DC24V DC24V power output
YC3 1 GND - - Ground
Connected to 2 TCONTERRN I DC0V/3.3V TCS: On/Off
the toner
3 GND - - Ground
container
switch and 4 TOPOPN I DC0V/3.3V TTSW: On/Off
inner tray
switch
YC4 1 EGASSDI I DC0V/3.3V(pulse) Serial communication data input
Connected to 2 GND - - Ground
the engine 3 EGASCS O DC0V/3.3V Serial communication chip select sig-
relay PWB nal
4 EGASEN I DC0V/3.3V Serial communication enable signal
5 +3.3V1 O DC3.3V DC3.3V power output
6 EGASSDO O DC0V/3.3V(pulse) Serial communication data output
7 +3.3V3 O DC3.3V DC3.3V power output
8 EGASSCK O DC0V/3.3V(pulse) Serial communication clock signal
9 WAKEU- I DC0V/3.3V Engine CPU return signal
PINTN
10 FRAM2SDA I/O DC0V/3.3V Security communication data
11 ERRTEMP O DC0V/3.3V Abnormal high temperature detection
signal
12 FRAM2SCL O DC0V/3.3V(pulse) Security communication clock
13 +3.3V3 O DC3.3V DC3.3V power output
14 OPSDO O DC0V/3.3V(pulse) Option serial data output
15 OPDYN I DC0V/3.3V Option ready signal
16 OPSDI I DC0V/3.3V(pulse) Option serial data input
17 GND - - Ground
18 OPSCK O DC0V/3.3V(pulse) Option serial clock signal

8-2
 2NR/2NS/2NT

Connector Pin Signal I/O Voltage Description

YC5 1 +24V1 O DC24V DC24V power output
Connected to 2 +24V1 O DC24V DC24V power output
the power
3 GND - - Ground
source PWB
4 GND - - Ground
5 GND - - Ground
6 GND - - Ground
7 +24V2 O DC24V DC24V power output
8 +24V2 O DC24V DC24V power output
9 +24V2 O DC24V DC24V power output
YC7 1 +24V3 O DC24V DC24V power output
Connected to 2 +24V3 O DC24V DC24V power output
the high-volt-
3 DACSLD1 O DC0V/3.3V(pulse) DAC1 load signal
age PWB
4 DACSLD2 O DC0V/3.3V(pulse) DAC2 load signal
5 DACSCLK O DC0V/3.3V(pulse) DAC clock signal
6 GND - - Ground
7 DACSDO I/O DC0V/3.3V(pulse) DAC data signal
8 HVREMN O DC0V/3.3V Primary/Secondary transfer remote
signal
9 HVCLKK O DC0V/3.3V Developer clock signal
10 MISENS I Analog Main charger current detection output
11 GND - - Ground
12 GND - - Ground
13*2 HVDCLKY O DC0V/3.3V(pulse) Developer (Y) clock signal
14*2 HVDCLKM O DC0V/3.3V(pulse) Developer (M) clock signal
15*2 HVDCLKC O DC0V/3.3V(pulse) Developer (C) clock signal
16*2 MCHGCLK O DC0V/3.3V(pulse) Main charger clock signal
17*2 MYISENS I Analog Main charger current (Y) detection out-
put
18*2 MMISENS I Analog Main charger current (M) detection
output
19*2 MCISENS I Analog Main charger current (C) detection
output

8-3
 2NR/2NS/2NT

Connector Pin Signal I/O Voltage Description

YC9*2 1 GND - - Ground
Connected to 2 T2KCNT
the high-volt-
3 T1CCNT
age PWB 2
4 CLCNT
5 HVREM
6 T1YCNT
7 T1MCNT
8 +24V3 O DC24V DC24V power output
YC11 1 NCTHCOM I Analog NC compensating voltage
Connected to 2 FTHERM1 I Analog FTH1 detection voltage
the eject
3 FCTHDET I Analog FTH2 detection voltage
PWB
4 +3.3V4 O DC3.3V DC3.3V power output
5 PDIRN I DC0V/3.3V ENVS: On/Off
6 PDFULL I DC0V/3.3V PFS: On/Off
7 FUSJAM I DC0V/3.3V ES: On/Off
8 GND - - Ground
YC12 1 GND - - Ground
Connected to 2 REGPAP I DC0V/3.3V RS: On/Off
the registra-
3 +3.3V3 O DC3.3V DC3.3V power output
tion sensor
YC13 1 VOPL I Analog IDS1 S signal input
Connected to 2 VOSL I Analog IDS1 P signal input
the ID sen- 3 GND - - Ground
sor 1
4 LEDREFL O IDS1 reference signal output
5 +3.3V3 O DC3.3V DC3.3V power output

YC14 1 VOPR I Analog IDS2 S signal input

Connected to 2 VOSR I Analog IDS2 P signal input
the ID sen-
3 GND - - Ground
sor 2
4 LEDREFR O Analog IDS2 reference signal output
5 +3.3V3 O DC3.3V DC3.3V power output

8-4
 2NR/2NS/2NT

Connector Pin Signal I/O Voltage Description

YC15 1 GND - - Ground
Connected to 2 PTSCL O DC0V/3.3V(pulse) E2PROM communication clock signal
the drum
3 +3.3V3 O DC3.3V DC3.3V power output
relay PWB
4 PTSDA I/O DC0V/3.3V(pulse) E2PROM communication data signal
5 TNSENC I Analog Toner sensor remaining level signal
(C)
6 TNSENY I Analog Toner sensor remaining level signal
(Y)
7 TNSENK I Analog Toner sensor remaining level signal
(K)
8 TNSENM I Analog Toner sensor remaining level signal
(M)
9 DRMHEATDR O DC24V DC24V power output
10 DLPTHERM I Analog Developer thermistor
11 ERASEDR O DC24V Eraser (BK) ON signal
YC19 1 +24V1 O DC24V DC24V power output
Connected to 2 LVUFANDRN O DC0V/12V/24V PSFM: : full speed/half speed/Off
the power
source fan
motor
YC20 1 PSSLEEPN O DC0V/3.3V Sleep mode signal: On/Off
Connected to 2 ZCROSSN I DC0V/3.3V(pulse) Zero cross signal
the power 3 RELAYON O DC0V/3.3V Power relay signal: On/Off
source PWB
4 HEATREM1 O DC0V/3.3V FH1: On/Off
5 HEATREM2*1 O DC0V/3.3V FH2: On/Off
YC21 1 +24V3 O DC24V DC24V power output
Connected to 2 REGCLDRVN O DC0V/3.3V RCL: On/Off
the registra-
tion clutch
YC24 1 AIRTEMP I Analog OTEMS detection voltage (tempera-
ture)
Connected to 2 +3.3V3 O DC3.3V DC3.3V power output
the external 3 HUMOUT I Analog OTEMS detection voltage (humidity)
temperature
sensor 4 HUMCLK O DC0V/3.3V(pulse) OTEMS clock signal

YC2002 1 +5V1_PANEL O DC5V DC5V power output

_C
Connected to 2 FPRSTN O DC0V/3.3V Panel reset signal
the opera- 3 +3.3V1_C O DC3.3V DC3.3V power output
tion panel
PWB 4 FPTXD I DC0V/3.3V(pulse) Reception data
5 FPRXD O DC0V/3.3V(pulse) Transmission data

8-5
 2NR/2NS/2NT

Connector Pin Signal I/O Voltage Description

6 GND - - Ground
7 WAKEUP_PN I DC0V/3.3V Sleep return notification signal
LKEY
YC2016 1 POLREMN1 O DC0V/3.3V Polygon motor ready signal
Connected to 2 GND - - Ground
the APC 3 POLRDYN1 I DC0V/3.3V Polygon motor ready signal
PWB K, APC
PWB M, and 4 +24V3 O DC24V DC24V power output
Polygon 5 POLCLK1 O DC0V/3.3V(pulse) Polygon motor clock signal
motor KM
6 PDKN I DC0V/3.3V BD (K)
7 PDMN I DC0V/3.3V BD (M)
8 +3.3V3_VIDE O DC3.3V DC3.3V power output
O
9 +3.3V3_VIDE O DC3.3V DC3.3V power output
O
10 VREFK O Analog Reference voltage 1 (K)
11 VREFM O Analog Reference voltage 1 (M)
12 VDOK1P O LVDS+ Video 1 differential P (K)
13 VDOM1P O LVDS+ Video 1 differential P (M)
14 VDOK1N O LVDS- Video 1 differential N (K)
15 VDOM1N O LVDS- Video 1 differential N (M)
16 GND - - Ground
17 GND - - Ground
18 OUTPEKN O DC0V/3.3V Output enable (K)
19 OUTPEMN O DC0V/3.3V Output enable (M)
Connected to 20 SAMPLEK1N O DC0V/3.3V Sample hold 1 (K)
the APC 21 SAMPLEM1N O DC0V/3.3V Sample hold 1?M?
PWB K, APC
PWB M, and 22 LSUTHERMK I Analog LSU thermistor (K)
Polygon 23 VDOM2P O LVDS+ Video 2 differential P (K)
motor KM
24 VDOK2P O LVDS+ Video 2 differential P (M)
25 VDOM2N O LVDS- Video 2 differential N (K)
26 VDOK2N O LVDS- Video 2 differential N (M)
27 SAMPLEM2N O DC0V/3.3V Sample hold 2 (K)
28 SAMPLEK2N O DC0V/3.3V Sample hold 2?M?
29 +5.0V2 O DC5V DC5V power output
30 +5.0V3 O DC5V DC5V power output

8-6
 2NR/2NS/2NT

Connector Pin Signal I/O Voltage Description

YC2017 1 POLREMN1 O DC0V/3.3V Polygon motor ready signal
Connected to 2 GND - - Ground
the APC
3 POLRDYN1 I DC0V/3.3V Polygon motor ready signal
PWB C, APC
PWB Y, and 4 +24V3 O DC24V DC24V power output
Polygon 5 POLCLK1 O DC0V/3.3V(pulse) Polygon motor clock signal
motor CY
6 PDCN I DC0V/3.3V BD (C)
7 PDYN I DC0V/3.3V BD (Y)
8 +3.3V3_VIDE O DC3.3V DC3.3V power output
O
9 +3.3V3_VIDE O DC3.3V DC3.3V power output
O
10 VREFC O Analog Reference voltage 1 (C)
11 VREFY O Analog Reference voltage 1 (Y)
12 VDOC1P O LVDS+ Video 1 differential P (C)
13 VDOY1P O LVDS+ Video 1 differential P (Y)
14 VDOC1N O LVDS- Video 1 differential N (C)
15 VDOY1N O LVDS- Video 1 differential N (Y)
16 GND - - Ground
17 GND - - Ground
18 OUTPECN O LVDS+ Output enable (C)
19 OUTPEYN O LVDS+ Output enable (Y)
20 SAMPLEC1N O LVDS- Sample hold 1?C?
21 SAMPLEY1N O LVDS- Sample hold 1?Y?
22 LSUTHERMC I Analog LSU thermistor (C)
23 VDOY2P O LVDS Video 2 differential P (Y)
24 VDOC2P O LVDS Video 2 differential P (C)
25 VDOY2N O LVDS Video 2 differential N (Y)
26 VDOC2N O LVDS Video 2 differential N (C)
Connected to 27 SAMPLEY2N O DC0V/3.3V Sample hold 2?Y?
the APC
28 SAMPLEC2N O DC0V/3.3V Sample hold 2?C?
PWB C, APC
29 +5.0V3 O DC5V DC5V power output
PWB Y, and
Polygon 30 +5.0V3 O DC5V DC5V power output
motor CY
YC2018 1 POWERSW O DC0V/24V PSSW: On/Off
Connected to 2 GND - - Ground
the power
switch
*1: for 35/40 ppm models only
*2: for 40 ppm models only

8-7
 2NR/2NS/2NT

(2) Engine relay PWB

(2-1) Connector position

7 1 2 10 2 6
2 1
8 2 1 9 1 5
YC20 YC13 YC12 YC16

1
3 1
6

4 2
5

YC14 7 1 YC3
2

1
1

8 2
YC18
1

8
YC8 YC26
YC2
5

1
1

1
2

YC15 YC25 YC10

1
17 1
1

4
3

YC5
13

18 2

1
14

YC1
YC7
1

YC4

4
1

3
YC19
YC6
12

6
YC27
1

1
1 2
YC23
2

2
1

YC21 YC24

Figure 8-3

(2-2) PWB photograph

Figure 8-4

8-8
 2NR/2NS/2NT

(2-3) Connector lists

Connector Pin Signal I/O Voltage Description
YC1 1 EGASSDI I DC0V/3.3V(pulse) Serial communication data input
Connected to 2 GND - - Ground
the Main/
3 EGASCS O DC0V/3.3V Serial communication chip select sig-
Engine PWB
nal
4 EGASEN I DC0V/3.3V Serial communication enable signal
5 +3.3V1 O DC3.3V DC3.3V power output
6 EGASSDO O DC0V/3.3V(pulse) Serial communication data output
7 +3.3V3 O DC3.3V DC3.3V power output
8 EGASSCK O DC0V/3.3V(pulse) Serial communication clock signal
9 WAKEU- I DC0V/3.3V Engine CPU return signal
PINTN
10 FRAM2SDA I/O DC0V/3.3V Security communication data
11 ERRTEMP O DC0V/3.3V Abnormal high temperature detection
signal
12 FRAM2SCL O DC0V/3.3V(pulse) Security communication clock
13 +3.3V3 O DC3.3V DC3.3V power output
14 OPSDO O DC0V/3.3V(pulse) Option serial data output
15 OPDYN I DC0V/3.3V Option ready signal
16 OPSDI I DC0V/3.3V(pulse) Option serial data input
17 GND - - Ground
18 OPSCK O DC0V/3.3V(pulse) Option serial clock signal
YC2 1 +24V3 O DC24V DC24V power output
Connected to 2 +24V3 O DC24V DC24V power output
the Main/
3 +24V3 O DC24V DC24V power output
Engine PWB
4 GND - - Ground
5 GND - - Ground
6 GND - - Ground
7 GND - - Ground
8 +24V1 O DC24V DC24V power output
YC3 1 FRAM2SCL O DC0V/3.3V(pulse) FRAMTS clock signal
Connected to 2 +3.3V3 O DC3.3V DC3.3V power output
the toner 3 FRAM2SDA I/O DC0V/3.3V FRAMTS data signal
container
relay PWB 4 GND - - Ground

YC4 1 +3.3V1_LED1 O DC3.3V DC3.3V power output

Connected to 2 GND - - Ground
the waste 3 WSTOPN I DC0V/3.3V WTCS: On/Off
toner cover
sensor

8-9
 2NR/2NS/2NT

Connector Pin Signal I/O Voltage Description

YC5 1 CAS2 I DC0V/3.3V CSSW(SW2): On/Off
Connected to 2 CAS1 I DC0V/3.3V CSSW(SW1): On/Off
the cassette
3 COM - - Ground
size detec-
tion switch 4 CAS0 I DC0V/3.3V CSSW(SW0): On/Off

YC6 1 +3.3V3_LED1 O DC3.3V DC3.3V power output

Connected to 2 GND - - Ground
the MP paper
3 MPFPAP I DC0V/3.3V MPPS: On/Off
sensor and
MP convey- 4 +3.3V3_LED2 O DC3.3V DC3.3V power output
ing sensor 5 GND - - Ground
6 MPFJAM I DC0V/3.3V MPPCS: On/Off
YC7 1 +3.3V3_LED3 O DC3.3V DC3.3V power output
Connected 2 GND - - Ground
to the
3 DUPPAP I DC0V/3.3V DUPCS: On/Off
duplex sen-
sor
YC8 1 GND - - Ground
Connected to 2 PAPVOL2 I DC0V/3.3V PS2: On/Off
the cassette
3 PAPVOL1 I DC0V/3.3V PS1: On/Off
PWB
4 LIFTSEN I DC0V/3.3V LS: On/Off
5 +3.3V3 O DC3.3V DC3.3V power output
YC10 1 LEDA O DC3.3V DC3.3V power output
Connected to 2 LEDK O DC0V/3.3V(pulse) WTS emission signal
the waste
3 PTRE I Analog WTS detection signal
toner sensor
4 PTRC O DC3.3V DC3.3V power output

YC12 1 MOTREV O DC0V/3.3V DEVM forward/reverse control signal

Connected to 2 DLPC- I DC0V/24V DEVM ready signal
the devel- MTRDYN
oper motor
3 DLPCMTCLK O DC0V/24V(pulse) DEVM clock signal
4 DLPC- O DC0V/24V DEVM: On/Off
MTREMN
5 GND - - Ground
6 +24V3 O DC24V DC24V power output

8-10
 2NR/2NS/2NT

Connector Pin Signal I/O Voltage Description

YC13 1 DRMMTRDYN I DC0V/24V DRM1 ready signal
Connected to 2 DRMMTCLK O DC0V/24V(pulse) DRM1 clock signal
the drum
3 DRM- O DC0V/24V DRM1: On/Off
motor 1 and MTREMN
drum motor 2
4 GND - - Ground
5 +24V3 O DC24V DC24V power output
6 DRMMT2RDY I DC0V/24V DRM2 ready signal
N
YC13 7 DRMMT2CLK O DC0V/24V(pulse) DRM2 clock signal
8 DRMMT2REM O DC0V/24V DRM2: On/Off
N
9 GND - - Ground
10 +24V3 O DC24V DC24V power output
YC14 1 IMGCCW I DC0V/3.3V CCW fixed control
Connected to 2 IMGMTRDYN I DC0V/24V TRM ready signal
the primary
3 IMGMTCLK O DC0V/24V(pulse) TRM clock signal
transfer
motor 4 IMGMTREMN O DC0V/24V TRM: On/Off
5 GND - - Ground
6 +24V3 O DC24V DC24V power output
YC15 1 MOTREV O DC0V/3.3V PFM forward/reverse control signal
Connected to 2 FEDMTRDYN I DC0V/24V PFM Ready signal
the paper
3 FEDMTCLK O DC0V/24V(pulse) PFM clock signal
feed motor,
developer 4 FEDMTREMN O DC0V/24V PFM: On/Off
clutch, mid- 5 GND - - Ground
dle clutch,
6 +24V3 O DC24V DC24V power output
MP convey-
ing clutch, 7 DLPKCLDRN O DC0V/24V DEVCL: On/Off
paper feed 8 +24V3 O DC24V DC24V power output
clutch and
duplex 9 MIDCLDRN O DC0V/24V MIDCL: On/Off
clutch. 10 +24V3 O DC24V DC24V power output
11 MPFCLDRN O DC0V/24V MPFCL: On/Off
12 +24V3 O DC24V DC24V power output
13 FEDCLDRN O DC0V/24V PFCL: On/Off
14 +24V3 O DC24V DC24V power output
15*1 DUPCLDRN O DC0V/24V DUCL: On/Off
16*1 +24V3 O DC24V DC24V power output

8-11
 2NR/2NS/2NT

Connector Pin Signal I/O Voltage Description

YC16 1 +24V3 O DC24V DC24V power output
Connected to 2 MPFSOLDR O DC0V/24V MPSOL: On/Off
the MP sole-
noid
YC18 1 TNMYDRVN O DC0V/24V(pulse) TM-Y drive control signal
Connected to 2 +24V3 O DC24V DC24V power output
the toner 3 TNMCDRVN O DC0V/24V(pulse) TM-C drive control signal
motor Y, C, M
and K 4 +24V3 O DC24V DC24V power output
5 TNMMDRVN O DC0V/24V(pulse) TM-M drive control signal
6 +24V3 O DC24V DC24V power output
7 TNMKDRVN O DC0V/24V(pulse) TM-K drive control signal
8 +24V3 O DC24V DC24V power output
YC19 1 +3.3V3 O DC3.3V DC3.3V power output
Connected to 2 - - - N.C
the paper
3 OPSEL2 O DC0V/3.3V Paper feeder select signal
feeder
4 OPSEL1 O DC0V/3.3V Paper feeder select signal
5 OPSEL0 O DC0V/3.3V Paper feeder select signal
6 GND - - Ground
7 GND - - Ground
8 OPSD0 O DC0V/3.3V(pulse) Paper feeder serial communication
data signal output
9 OPSDI I DC0V/3.3V(pulse) Paper feeder serial communication
data signal input
10 OPRDYN I DC0V/3.3V Paper feeder ready signal
11 OPSCLK O DC0V/3.3V(pulse) Paper feeder clock signal
12 +24V3 O DC24V DC24V power output
YC20 1 STDUPB1 O DC0V/24V(pulse) DUM B1drive control signal
Connected to 2 STDUPB3 O DC0V/24V(pulse) DUM B3drive control signal
the fuser
3 STDUPA3 O DC0V/24V(pulse) DUM A3 drive control signal
motor and
duplex con- 4 STDUPA1 O DC0V/24V(pulse) DUM A1 drive control signal
veying motor 5 STFUSBN O DC0V/24V(pulse) FUM BN drive control signal
6 STFUSAN O DC0V/24V(pulse) FUM AN drive control signal
7 STFUSB O DC0V/24V(pulse) FUM B drive control signal
8 STFUSA O DC0V/24V(pulse) FUM A drive control signal
YC21 1 +24V1 O DC24V DC24V power output
Connected to 2 LSUKMFAN- O DC0V/24V LSUFM1: On/Off
the LSU fan DRN
motor 1

8-12
 2NR/2NS/2NT-1

Connector Pin Signal I/O Voltage Description

YC22 1 +24V1 O DC24V DC24V power output
Connected to 2 IMGFANDRN O DC0V/24V TRFM: On/Off
the transfer
fan motor

YC23 1 +24V1 O DC24V DC24V power output

Connected to 2 LSUCYFAN- O DC0V/24V LSUFM2: On/Off
the LSU fan DRN
motor 2
YC24 1 +24V1 O DC24V DC24V power output
Connected to 2 TCONTFAN- O DC0V/24V CFM: On/Off
the container DRVN
motor
YC25 1 LIFTMTB O DC0V/24V(pulse) LM B drive control signal
Connected to 2 LIFTMTA O DC0V/24V(pulse) LM A drive control signal
the lift motor

YC26 1 LSUMTB O DC0V/24V(pulse) LSUCM B drive control signal

Connected to 2 LSUMTA O DC0V/24V(pulse) LSUCM A drive control signal
the LSU
cleaning
motor
YC27*1 1 +24V3 O DC24V DC24V power output
Connected to 2 EXITFANDRN O DC0V/24V EJFM: On/Off
the eject fan
motor
YC28*2 1 +24V3 O DC24V DC24V power output
Connected to 2 UFPFANDRN O DC0V/24V DUFM: On/Off
the duplex
fan motor
*1: for 35/40 ppm models only
*2: for 40 ppm models only

8-13
 2NR/2NS/2NT

(3) High-voltage PWB

(3-1) Connector position
30/35 ppm models

1 12
YC101

Figure 8-5

40 ppm models

1 12
YC101

Figure 8-6

8-14
 2NR/2NS/2NT

(3-2) PWB photograph

30/35 ppm model

Figure 8-7

40 ppm model

Figure 8-8

8-15
 2NR/2NS/2NT

(3-3) Connector lists

Connector Pin Signal I/O Voltage Description

YC101 1 +24V3 I DC24V DC24V power input
Connected to 2 +24V3 I DC24V DC24V power input
the Main/
3 DACSLD1 I DC0V/3.3V DAC1 load signal
Engine PWB
4 DACSLD2 I DC0V/3.3V DAC2 load signal
5 DACSCLK I DC0V/3.3V(pulse) DAC clock signal
6 GND - - Ground
7 DACSDO I/O DC0V/3.3V(pulse) DAC data signal
8 HVREMN I DC0V/3.3V Primary/Secondary transfer remote
signal
9 HVCLK I DC0V/3.3V(pulse) Developer (K) clock signal
10 MKISENS O Analog Main charger current (K) detection
output
11 GND - - Ground
12 GND - - Ground
13* HVDCLKY I DC0V/3.3V(pulse) Developer (Y) clock signal
14* HVDCLKM I DC0V/3.3V(pulse) Developer (M) clock signal
15* HVDCLKC I DC0V/3.3V(pulse) Developer (C) clock signal
16* MCHGCLK I DC0V/3.3V(pulse) Main charger clock signal
17* MYISENS O Analog Main charger current (Y) detection
output
18* MMISENS O Analog Main charger current (M) detection
output
19* MCISENS O Analog Main charger current (C) detection
output

*1: 40 ppm models only

8-16
 2NR/2NS/2NT

(4) High-voltage PWB 2

*: for 40 ppm models only

(4-1) Connector position

1 12
CN2

Figure 8-9

(4-2) PWB photograph

Figure 8-10

8-17
 2NR/2NS/2NT

(4-3) Connector lists

Connector Pin Signal I/O Voltage Description
CN2 1 +24V3 I DC24V DC24V power input
Connected to 2 T1MCNT I +3.3V Analog Primary transfer DC output control
the Main/ signal (M)
Engine PWB
3 T1YCNT I +3.3V Analog Primary transfer DC output control
signal (Y)
4 HVREM I DC0V/3.3V Primary transfer (Reverse) output
OFF/ON signal
5 CLCNT I +3.3V Analog Cleaning DC output control signal
6 T1CCNT I +3.3V Analog Primary transfer DC output control
signal (C)
7 T2KCNT I +3.3V Analog Primary transfer DC output control
signal (K)
8 GND - - Ground

8-18
 2NR/2NS/2NT

(5) Power source PWB

(5-1) Connector position
30 ppm model

YC105

YC104 YC103

YC101 YC102

Figure 8-11

35/40 ppm models

YC105

YC104 YC103

YC101 YC102

Figure 8-12

8-19
 2NR/2NS/2NT

(5-2) PWB photograph

30 ppm models

Figure 8-13

35/40 ppm models

Figure 8-14

8-20
 2NR/2NS/2NT-1

(5-3) Connector lists

Connector Pin Signal I/O Voltage Description
YC101 1 LIVE I 100VAC AC power input
Connected to 2 NEUTRAL I 100VAC AC power input
the inlet
YC102 1 NEUTRAL1 I 100VAC Fuser heater 1
Connected to 3 LIVE O 100VAC AC power input
the fuser unit
5 NEUTRAL2*1 I 100VAC Fuser heater 2
YC103 1 +24V2 O DC24V DC24V power output to MEPWB
Connected to 2 +24V2 O DC24V DC24V power output to MEPWB
the Main/ 3 +24V2 O DC24V DC24V power output to MEPWB
Engine PWB
4 GND - - Ground
5 GND - - Ground
6 GND - - Ground
7 GND - - Ground
8 +24V1 O DC24V DC24V power output to MEPWB
9 +24V1 O DC24V DC24V power output to MEPWB
YC104 1 +24V2 I DC24V DC24V power input to ILSW
Connected to 2 N.C. - - Not used
the interlock 3 +24V1 O DC24V DC24V power output from ILSW
switch
YC105 1 HEATREM1 I DC0V/3.3V FH1: On/Off
Connected to 2 RELAY I DC0V/3.3V Power relay signal: On/Off
the Main/ 3 ZCROSS O DC0V/ Zero cross signal
Engine PWB 3.3V(pulse)
(30 ppm
4 PSSLEEPN I DC0V/3.3V Sleep mode signal: On/Off
models only)
5 N.C. - - Not used
YC105 1 HEATREM2 I DC0V/3.3V FH2: On/Off
Connected to 2 HEATREM1 I DC0V/3.3V FH1: On/Off
the Main/ 3 RELAY I DC0V/3.3V Power relay signal: On/Off
Engine PWB
4 ZCROSS O DC0V/ Zero cross signal
(35/40 ppm
3.3V(pulse)
models only)
5 PSSLEEPN I DC0V/3.3V Sleep mode signal: On/Off

*1: 35/40 ppm models only

8-21
 2NR/2NS/2NT

(6) Operation panel PWB

(6-1) Connector position
30 ppm model

1 7

YC1

Figure 8-15

35/40 ppm model

1 7
YC1

Figure 8-16

8-22
 2NR/2NS/2NT

(6-2) PWB photograph

30 ppm models

Figure 8-17

35/40 ppm models

Figure 8-18

8-23
 2NR/2NS/2NT

(6-3) Connector lists

Connector Pin Signal I/O Voltage Description
YC1 1 +5V1 O DC5V DC5V power output 0
Connected to 2 FPRSTN O DC0V/3.3V(pulse) Scan signal 1
the panel-R
3 +3.3V1 O DC3.3V DC3.3V power output 2
PWB
4 FPTXD O DC0V/3.3V(pulse) Scan signal 3
5 FPRXD O DC0V/3.3V(pulse) Scan signal 4
6 LEDRIGHT0 O DC0V/3.3V(pulse) Operation panel LED display drive signal
0
7 WAKEUP_PN I DC0V/3.3V(pulse) Operation panel key scan return signal 0
LKEY

8-24
 2NR/2NS/2NT

(7) Drum relay PWB

(7-1) Connector position

2
2
2

7
8

7
8
7
8
7
8

2 YC1 11

7
8

7
8
7
8
YC13 YC12 YC11 YC10
7

1
1
YC4 YC3
1

YC9 YC5 YC8 1 10 YC6

YC7
1

YC2

1
2

1
2
1
2
1
2

1
2

1
2
1
2

Figure 8-19

(7-2) PWB photograph

Figure 8-20

8-25
 2NR/2NS/2NT

(7-3) Connector lists

Connector Pin Signal I/O Voltage Description
YC1 1 GND - - Ground
Connected to 2 PTSCL O DC0V/3.3V(pulse) E2PROM communication clock signal
the Main/
3 +3.3V3 O DC3.3V DC3.3V power output
Engine PWB
4 PTSDA I/O DC0V/3.3V(pulse) E2PROM communication data signal
5 TNSENC I Analog Toner sensor remaining level signal (C)
6 TNSENY I Analog Toner sensor remaining level signal (Y)
7 TNSENK I Analog Toner sensor remaining level signal (K)
8 TNSENM I Analog Toner sensor remaining level signal (M)
9 DRMHEATDR O DC24V DC24V power output
10 DLPTHERM I Analog Developer thermistor
11 ERASEDR O DC24V Eraser (BK) ON signal
YC2 1 GND - - Ground
Connected to 2 PTSCL O DC0V/3.3V(pulse) EEPROM clock signal
the drum
3 ERASEK O DC0V/24V CL-K: On/Off
PWB K
4 PTSDA I/O DC0V/3.3V(pulse) EEPROM data signal
5 N.C - - -
6 3.3V3 O DC3.3V DC3.3V power output
7 DA0 O DC3.3V DC3.3V power output
8 DA1 - - Ground
YC3 1 GND - - Ground
Connected to 2 PTSCL O DC0V/3.3V(pulse) EEPROM clock signal
the drum
3 ERASECOL O DC0V/24V CL-M: On/Off
PWB M
4 PTSDA I/O DC0V/3.3V(pulse) EEPROM data signal
5 N.C - - -
6 3.3V3 O DC3.3V DC3.3V power output
7 DA0 O DC3.3V DC3.3V power output
8 DA1 - - Ground
YC4 1 GND - - Ground
Connected to 2 PTSCL O DC0V/3.3V(pulse) EEPROM clock signal
the drum
3 ERASECOL O DC0V/24V CL-C: On/Off
PWB C
4 PTSDA I/O DC0V/3.3V(pulse) EEPROM data signal
5 N.C - - -
6 3.3V3 O DC3.3V DC3.3V power output
7 DA0 - - Ground
8 DA1 O DC3.3V DC3.3V power output

8-26
 2NR/2NS/2NT

Connector Pin Signal I/O Voltage Description

YC5 1 GND - - Ground
Connected to 2 PTSCL O DC0V/3.3V(pulse) EEPROM clock signal
the drum
3 ERASECOL O DC0V/24V CL-Y: On/Off
PWB Y
4 PTSDA I/O DC0V/3.3V(pulse) EEPROM data signal
5 N.C - - -
6 3.3V3 O DC3.3V DC3.3V power output
7 DA0 - - Ground
8 DA1 - - Ground
YC6 1 GND - - Ground
Connected 2 3.3V3 O DC3.3V DC3.3V power output
the to devel-
3 TNSENSK I Analog TS-K detection signal
oper PWB K
4 PTSCL O DC0V/3.3V(pulse) EEPROM clock signal
5 DLPTH I Analog Developer thermistor (K) output
6 PTSDA I/O DC0V/3.3V(pulse) EEPROM data signal
7 DA0ERASEK O DC0V/3.3V CL-K: On/Off
8 DA1 - - Ground
YC7 1 GND - - Ground
Connected to 2 3.3V3 O DC3.3V DC3.3V power output
the devel-
3 TNSENSK I Analog TS-K detection signal
oper PWB M
4 PTSCL O DC0V/3.3V(pulse) EEPROM clock signal
5 DLPTH I Analog Developer thermistor (M) output
6 PTSDA I/O DC0V/3.3V(pulse) EEPROM data signal
7 DA0ERASEK O DC0V/3.3V CL-K: On/Off
8 DA1 O DC3.3V DC3.3V power output
YC8 1 GND - - Ground
Connected to 2 3.3V3 O DC3.3V DC3.3V power output
the devel-
3 TNSENSK I Analog TS-K detection signal
oper PWB C
4 PTSCL O DC0V/3.3V(pulse) EEPROM clock signal
5 DLPTH I Analog Developer thermistor (C) output
6 PTSDA I/O DC0V/3.3V(pulse) EEPROM data signal
7 DA0ERASEK O DC0V/3.3V CL-K: On/Off
8 DA1 - - Ground

8-27
 2NR/2NS/2NT

Connector Pin Signal I/O Voltage Description

YC9 1 GND - - Ground
Connected to 2 3.3V3 O DC3.3V DC3.3V power output
the devel-
3 TNSENSK I Analog TS-K detection signal
oper PWB Y
4 PTSCL O DC0V/3.3V(pulse) EEPROM clock signal
5 DLPTH I Analog Developer thermistor (Y) output
6 PTSDA I/O DC0V/3.3V(pulse) EEPROM data signal
7 DA0ERASEK O DC0V/3.3V CL-K: On/Off
8 DA1 O DC3.3V DC3.3V power output
YC10 1 HEATDRK O DC0V/24V Drum heater (K) drive signal: On/Off
Connected to 2 GND - - Ground
the drum
heater (K)*1
YC11 1 HEATDRKM O DC0V/24V Drum heater (M) drive signal: On/Off
Connected to 2 GND - - Ground
the drum
heater (M)*1
YC12 1 HEATDRC O DC0V/24V Drum heater (C) drive signal: On/Off
Connected to 2 GND - - Ground
the drum
heater (C)*1
YC13 1 HEATDRY O DC0V/24V Drum heater (Y) drive signal: On/Off
Connected to 2 GND - - Ground
the drum
heater (Y)*1
*1: for 40 ppm models only

8-28
 2NR/2NS/2NT

(8) PF main PWB (Optional Paper Feeder)

(8-1) Connector position

YC2 YC6 YC9

YC10
1 4 6 1 4 1
3
YC4

7 1
1

2
YC7

1
12

9
YC3

TB1
YC5

2
YC14
1
1

1
YC1

1 3

Figure 8-21

(8-2) PWB photograph

YC14

Figure 8-22

8-29
 2NR/2NS/2NT

(8-3) Connector lists

Connector Pin Signal I/O Voltage Description
YC1 1 +3.3V O DC3.3V DC3.3V power
Connected to 2 GND - - Ground
the PF con- 3 OUT I DC0V/3.3V PFFS: On/Off
veying sensor
YC2 1 PAPSIZE0 I DC0V/3.3V PFCSSW: On/Off
Connected to 2 PAPSIZE1 I DC0V/3.3V PFCSSW: On/Off
the cassette 3 GND - - Ground
size detec-
4 PAPSIZE2 I DC0V/3.3V PFCSSW: On/Off
tion switch
YC3 1 GND - - Ground
Connected to 2 OPSCLK I DC0V/ Serial communication clock signal
the interface 3.3V(pulse)
connector 3 OPRDYN O DC0V/3.3V Ready signal
4 OPSDI O DC0V/ Serial communication data signal
3.3V(pulse)
5 OPSDO I DC0V/ Serial communication data signal
3.3V(pulse)
6 +3.3V I DC0V/3.3V DC3.3V power
7 GND - - Ground
8 OPSEL0 I DC0V/3.3V Paper feeder select signal
9 OPSEL1 I DC0V/3.3V Paper feeder select signal
10 OPSEL2 I DC0V/3.3V Paper feeder select signal
11 PAPSIZE O DC0V/3.3V PFCSSW: On/Off
YC4 1 +24V O DC24V DC24V power
Connected to 2 PAPSIZE I DC0V/3.3V PFCSSW: On/Off
the interface 3 GND - - Ground
connector

YC5 1 GND - - Ground

Connected to 2 OPSCLK O DC0V/ Serial communication clock signal
the interface 3.3V(pulse)
connector 3 OPRDYN I DC0V/3.3V Ready signal
4 OPSDI I DC0V/ Serial communication data signal
3.3V(pulse)
5 OPSDO O DC0V/ Serial communication data signal
3.3V(pulse)
6 +3.3V O DC0V/3.3V DC3.3V power
7 OPSEL1 O DC0V/3.3V Paper feeder select signal
8 OPSEL2 O DC0V/3.3V Paper feeder select signal
9 OPSEL0 O DC0V/3.3V Paper feeder select signal

8-30
 2NR/2NS/2NT

Connector Pin Signal I/O Voltage Description

YC6 1 TMDIR O DC0V/3.3V PFPFM control signal
Connected to 2 TMLOCK I DC0V/3.3V PFPFM Clock signal
the PF paper 3 TMCLK O DC0V/ PFPFM clock signal
feed motor 3.3V(pulse)
4 #TMDRY O DC0V/3.3V PFPFM: On/Off
5 GND - - Ground
6 +24V O DC24V DC24V power

YC7 1 LMOT+ O DC24V/0V/0V PFLM: forward/-/Off

Connected to 2 LMOT- O DC0V/24V/0V PFLM: -/reverse/Off
the PF lift
motor
YC9 1 TRANSCLN O DC0V/24V PFPCCL: On/Off
Connected to 2 +24V O DC24V DC24V power
the PF paper 3 FEEDCLN O DC0V/24V PFPFCL: On/Off
feed clutch
4 +24V O DC24V DC24V power
and PF con-
veying clutch
YC14 1 COV_SW O DC0V/3.3V PFRCSW: On/Off
Connected to 2 GND O - Ground
the PF rear
cover switch

8-31
 2NR/2NS/2NT

This page is intentionally left blank.

8-32
 2NR/2NS/2NT

9 Appendixes
9-1 Appendixes
(1) Repetitive defects gauge

First occurrence of defect

28.2 mm/1 1/8” Magnet roller (30 ppm model)

29.8 mm/1 3/16” Chager roller (40 ppm model)
31.2 mm/1 7/32” Registration roller (Front)
32.2 mm/1 9/32” Sleeve roller (30 ppm model)
35.8 mm/1 13/32” Magnet roller (35 ppm model)
37.7 mm/1 15/32” Chager roller
40.3 mm/1 9/16” Sleeve roller (35/40 ppm model)
40.5 mm/1 19/32” Middle roller
51.2 mm/2 1/32” Registration roller (Rear)

58.6 mm/2 5/16” Secondly transfer roller

81.7 mm/3 7/32” Heat roller (30 ppm model)

88.0 mm/3 15/32” Heat roller (35/40 ppm model)
94.2 mm/3 23/32” Press roller
96.6 mm/3 25/32” Drum (30 ppm model)
96.8 mm/3 13/16” Drum (35/40 ppm model)

459.9 mm/29 29/32” Primaly transfer belt

* : The repetitive marks interval may vary depending on operating conditions.

9-1
 2NR/2NS/2NT-1

(2) Firmware environment commands

The printer maintains a number of printing parameters in its memory. These parameters may be changed per-
manently with the FRPO (Firmware RePrOgram) commands.
This section provides information on how to use the FRPO command and its parameters using examples.

Using FRPO commands for reprogramming the firmware

The current settings of the FRPO parameters are listed as the optional values on the service status page.

Note: Before changing any FRPO parameters, print out a service status page, so you will know the parameter
values before the changes are made. To return FRPO parameters to their factory default values, send the
FRPO INIT (FRPO-INITialize) command.(!R! FRPO INIT; EXIT;)

The FRPO command is sent to the printer in the following sequence:

!R! FRPO parameter, value; EXIT;
Example: Changing emulation mode to PC-PR201/65A
!R! FRPO P1, 11; EXIT;

FRPO parameters

Factory
Item FRPO Setting values
setting
Default pattern resolution B8 0: 300 dpi 0
1: 600 dpi
Copy count C0 Number of copies to print:1-999 1
Page orientation C1 0: Portrait 0
1: Landscape
Default font No. C2 Middle two digits of power-up font 0
C3 Last two digits of power-up font 0
C5 First two digits of power-up font 0

PCL font switch C8 0:HP compatibility mode (Characters higher 0

than 127 are not printed.)
32:Conventional mode (Characters higher than
127 are printed. Supported symbol sets: ISO-
60 Norway [00D], ISO-15 Italian [00I], ISO-11
Sweden [00S], ISO-6 ASCII [00U], ISO-4 U.K.
[01E], ISO-69 France [01F], ISO-21 Germany
[01G], ISO-17 Spain [02S], Symbol [19M)

Total host buffer size H8 0 to 99 in units of the size defined by FRPO S5 5

Form feed time-out value H9 Value in units of 5 seconds (0 to 99). 6
Duplex binding N4 0: Off 0
1: Long edge
2: Short edge
Sleep timer time-out time N5 1 to 240 minutes [0: Off] 1

Ecoprint level N6 0: Off 0

2: On

9-2
 2NR/2NS/2NT

Factory
Item FRPO Setting values
setting
Default emulation mode P1 0 : Line printer 9(U.S.A)
1 : IBM proprinter or
2 : DIABLO 630 6(Euro and
5 : Epson LQ-850 other)
6 : PCL6 (except PCL XL)
8 : KC-GL
9 : KPDL
11 : PC-PR201
12 : IBM 5577
13 : VP-1000
14 : N5200
15 : FMPR-359F1
Carriage-return action * P2 0: Ignores 0x0d 1
1: Carriage-return
2: Carriage-return+linefeed
Linefeed action * P3 0: Ignores 0x0d 1
1: Linefeed
2: Linefeed+carriage-return
Automatic emulation sensing P4 0: AES disabled 1(U.S.A)
(For KPDL3) 1: AES enabled or
0(Euro and
other)
Automatic emulation switching P7 0: Page eject commands 11(U.S.A)
trigger 1: None or
(For KPDL3) 2: Page eject and PRESCRIBE EXIT 10(Euro and
3: PRESCRIBE EXIT other)
4: Formfeed (^L)
6: Page eject, PRESCRIBE EXIT and formfeed
10: Page eject commands; if AES fails,
resolves to KPDL
Command recognition character P9 ASCII code of 33 to 126 82 (R)

9-3
 2NR/2NS/2NT-1

Factory
Item FRPO Setting values
setting
Default paper size R2 0: Size of the default paper cassette (See R4.) 0
1: Monarch (3-7/8 × 7-1/2 inches)
2: Business (4-1/8 × 9-1/2 inches)
3: International DL (11 × 22 cm)
4: International C5 (16.2 × 22.9 cm)
5: Executive (7-1/4 × 10-1/2 inches)
6: US Letter (8-1/2 × 11 inches)
7: US Legal (8-1/2 × 14 inches)
8: A4 (21.0 × 29.7 cm)
9: JIS B5 (18.2 × 25.7 cm)
13: ISO A5
14: A6 (10.5 × 14.8 cm)
15: JIS B6 (12.8 × 18.2 cm)
16: Commercial #9 (3-7/8 × 8-7/8 inches)
17: Commercial #6 (3-5/8 × 6-1/2 inches)
18: ISO B5 (17.6 × 25 cm)
19: Custom (11.7 × 17.7 inches)
31: Hagaki (10 × 14.8 cm)
32: Ofuku-hagaki (14.8 × 20 cm)
33: Officio II
40: 16K
42: 216x340
50: Statement
51: Folio
52: Youkei 2
53: Youkei 4
Default cassette R4 0: MP tray 1
1: Cassette 1
2: Cassette 2
3: Cassette 3
4: Cassette 4

MP tray paper size R7 Same as the R2 values except: 0 6 (U.S.A)

or
8 (Euro and
other)
A4/letter equation S4 0: Off 1
1: On
Host buffer size S5 0: 10kB (x H8) 1
1: 100kB (x H8)
2: 1024kB (x H8)

RAM disk size S6 1 to 1024 MB 400

RAM disk mode S7 0: Off 1

1: On

9-4
 2NR/2NS/2NT

Factory
Item FRPO Setting values
setting
Wide A4 T6 0: Off 0
1: On
Line spacing U0 Lines per inch (integer value) 6

Line spacing U1 Lines per inch (fraction value) 0

Character spacing U2 Characters per inch (integer value) 10

Character spacing U3 Characters per inch (fraction value) 0

Country code U6 0: US-ASCII 41

1: France
2: Germany
3: UK
4: Denmark
5: Sweden
6: Italy
7: Spain
8: Japan
9: US Legal
10: IBM PC-850 (Multilingual)
11: IBM PC-860 (Portuguese)
12: IBM PC-863 (Canadian French)
13: IBM PC-865 (Norwegian)
14: Norway
15: Denmark 2
16: Spain 2
17: Latin America
21: US ASCII (U7 = 50 SET)
77: HP Roman-8 (U7 = 52 SET)

Code set at power up in daisy- U7 0: Same as the default emulation mode (P1) 53
wheel emulation 1: IBM
6: IBM PC-8
50: US ASCII (U6 = 21 SET)
52: HP Roman-8 (U6 = 77 SET)

Font pitch for fixed pitch scalable U8 Integer value in cpi: 0 to 99 10

font
U9 Fraction value in 1/100 cpi: 0 to 99 0

9-5
 2NR/2NS/2NT-1

Factory
Item FRPO Setting values
setting
Font height for the default scal- V0 Integer value in 100 points: 0 to 9 0
able font
V1 Integer value in points: 0 to 99 12

V2 Fraction value in 1/100 points: 0, 25, 50, 75 0

Default scalable font V3 Name of typeface of up to 32 characters, Courier

enclosed with single or double quotation marks

Default weight V9 0: Courier = darkness 5

(courier and letter Gothic) Letter Gothic = darkness
1: Courier = regular
Letter Gothic = darkness
4: Courier = darkness
Letter Gothic = regular
5: Courier = regular
Letter Gothic = regular

Color mode W1 0: Monochrome 1

1: Color (CMYK color)
Gloss mode W6 0: Low (Normal Print) 0
1: High
Paper type for the MP tray X0 1: Plain 1 1
2: Transparency
3: Preprinted
4: Label
5: Bond
6: Recycle
7: Vellum
8: Rough
9: Letterhead
10: Color
11: Prepunched
12: Envelope
13: Cardstock
14: Coated
16: Thick
17: High quality
21: Custom1
22: Custom2
23: Custom3
24: Custom4
25: Custom5
26: Custom6
27: Custom7
28: Custom8

9-6
 2NR/2NS/2NT

Factory
Item FRPO Setting values
setting
Paper type for paper cassettes 1 X1 1: Plain 1
3: Preprinted
5: Bond
6: Recycled
7: Vellum
8: Rough
9: Letterhead
10: Color
11: Prepunched
16: Thick
17: High quality
21: Custom1
22: Custom2
23: Custom3
24: Custom4
25: Custom5
26: Custom6
27: Custom7
28: Custom8
Paper type for paper cassettes 2 X2 1: Plain 1
to 4 X3 3: Preprinted
X4 4: Label
5: Bond
6: Recycled
7: Vellum
8: Rough
9: Letterhead
10: Color
11: Prepunched
12: Envelope
14: Coated
16: Thick
17: High quality
21: Custom1
22: Custom2
23: Custom3
24: Custom4
25: Custom5
26: Custom6
27: Custom7
28: Custom8

PCL paper source X9 0: Paper selection depending on an escape 0

sequence compatible with HP-LJ5Si.
2: Paper selection depending on an escape
sequence compatible with HP-LJ8000.

Automatic continue for ‘Press Y0 0: Off 0

GO’ 1: On

9-7
 2NR/2NS/2NT

Factory
Item FRPO Setting values
setting
Automatic continue timer Y1 Number from 0 to 99 in increments of 5 sec- 6
onds (30 secons)
Error message for device error Y3 0 to 255 0

Duplex operation for specified Y4 0: Off 0

paper type 1: On
(Prepunched, Preprintedand Let-
terhead)

Default operation for PDF direct Y5 0: Enlarges or reduces the image to fit in the 0
printing current paper size. Loads paper from the
current paper cassette.
1: Through the image. Loads paper which is
the same size as the image.
2: Enlarges or reduces the image to fit in the
current paper size. Loads Letter, A4 size
paper depending on the image size.
3: Through the image. Loads Letter, A4 size
paper depending on the image size.
8: Through the image. Loads paper from the
current paper cassette.
9: Through the image. Loads Letter, A4 size
paper depending on the image size.
10: Enlarges or reduces the image to fit in the
current paper size. Loads Letter, A4 size
paper depending on the imagesize.

e-MPS error Y6 0:Does not print the error report and display 3
the error message.
1:Prints the error report.
2:Displays the error message.
3:Prints the error report and displays the error
message.

9-8
 2NR/2NS/2NT-1

(3) System Error (Fxxxx) Outline

The document is described for the outline of the factors of the Fxxx errors that are not described in the self-
diagnosis error code list of Chapter 1-7. Please utilize it to refer for checking the factors.

Please utilize it as the measures when the system is not recovered after power off/on or it frequently occurs.

(Note) Please initially check the following when the error (Fxxx) is indicated.
- Check the DIMM (DDR memory) and neighboring parts
: Check the contact on the control PWB by releasing and reinserting the DIMM.
If the error repeats after that, replace the DIMM.

9-9
 2NR/2NS/2NT-1
P6130cdn, P6030cdn, P7040cdn
No. Content Check procedure & check point Remark (Common)
(Printer)

Lock-up at Welcome display

(KYOCERA or (KYOCERA 1. Check the wire or connector between Operation panel PWB and
TASKalfa/ Ecosys) Main/engine PWB and correct it if necessary. (Reconnect the connector or
[Operation panel PWB - Main/Engine PWB]
(The display unchages after a replace the wire) Check the operation after that.
― Operation panel PWB: YC1
certain time (Note)) 2. Replace the operation panel PWB and check function.
Main/Engine PWB：YC2002
3. Replace the main/engine PWB and check function.
(Note) 4. Retrieve the USBLOG and contact the Service Administrative Division.
60 s

F000 appears in a certain

time (Note) after the
1. Check the wire or connector between Operation panel PWB and
Welcome display continues
Main/engine PWB and correct it if necessary. (Reconnect the connector or
[Operation panel PWB - Main/Engine PWB]
replace the wire) Check the operation after that.
F000 Operation panel- Main board Operation panel PWB: YC1
2. Replace the operation panel PWB and check function.
communication error Main/Engine PWB：YC2002
3. Replace the main/engine PWB and check function.
(Note) 4. Retrieve the USBLOG and contact the Service Administrative Division.
60 s

1. Check the wire or connector between the authentication device and

An error is detected at the Main/engine PWB and correct it if necessary. (Reconnect the connector or
Authentication device: Card
F15X authentication device control replace the wire) Check the operation after that. No remarks
Reader, etc.
section 2. Replace the main/engine PWB and check function.
3. Retrieve the USBLOG and contact the Service Administrative Division.

1. Execute U021 (Init memory) and check function.

An error is detected at the
F17X 2. Replace the main/engine PWB and check function. No remarks
print data control section
3. Retrieve the USBLOG and contact the Service Administrative Division.

1. Execute U021 (Init memory) and check function.

An error is detected at the
F18X 2. Replace the main/engine PWB and check function. No remarks
Video control secion
3. Retrieve the USBLOG and contact the Service Administrative Division.

9-10
 2NR/2NS/2NT-1
P6130cdn, P6030cdn, P7040cdn
No. Content Check procedure & check point Remark (Common)
(Printer)

An error is detected at the 1. Execute U021 (Init memory) and check function.
F1DX Image memory management 2. Replace the main/engine PWB and check function. No remarks
section 3. Retrieve the USBLOG and contact the Service Administrative Division.

F21X [Check the DIMM contact]

Main/Engine PWB：YS2000
1.Check contact of the DIMM by releasing and reinserting, and check the
An error is detected at the function. Replace DIMM if available, and check function.
F22X A certain section of the DIMM might have some problem.
Image processing section 2. Replace the main/engine PWB and check function.
The occurrence frequency differs depending on the access
3. Retrieve the USBLOG and contact the Service Administrative Division.
frequency to the bit with the problem. If the DIMM has no
F23X sensitiveness, ASIC might have problem.

[Check the DIMM contact]

F248 eror is printer process Main/Engine PWB：YS2000
1. Check contact of the DIMM by releasing and reinserting, and check the
error.
An error is detected at the function. Replace DIMM if available, and check function.
F24X If it repeats with a certain A certain section of the DIMM might have some problem.
System management section 2. Replace the main/engine PWB and check function.
print data, retrieve the The occurrence frequency differs depending on the access
3. Retrieve the USBLOG and contact the Service Administrative Division.
capture data and USBLOG. frequency to the bit with the problem. If the DIMM has no
sensitiveness, ASIC might have problem.

An error is detected at the 1. Replace the main/engine PWB and check function.
F26X No remarks
System management section 2. Retrieve the USBLOG and contact the Service Administrative Division.

An error is detected at the 1. Replace the main/engine PWB and check function.
F35X No remarks
Print control section 2. Retrieve the USBLOG and contact the Service Administrative Division.

An error is detected at the

1. Replace the main/engine PWB and check function.
F38X Authentication/permit No remarks
2. Retrieve the USBLOG and contact the Service Administrative Division.
management section
F3AX
F3BX
F3CX
F3DX
F3EX
F3FX An error is detected at the 1. Replace the main/engine PWB and check function.
No remarks
F40X Entity control section 2. Retrieve the USBLOG and contact the Service Administrative Division.
F41X
F42X
F43X
F44X
F45X

9-11
 2NR/2NS/2NT-1
P6130cdn, P6030cdn, P7040cdn
No. Content Check procedure & check point Remark (Common)
(Printer)
F46F eror is printer process
1. Replace the main/engine PWB and check function. error.
An error is detected at the
F46X 2. Retrieve the USBLOG and contact the Service Administrative Division. If it repeats with a certain No remarks
Print image process section
(or retrieve the print capture data by case) print data, retrieve the
capture data and USBLOG.

F47X
An error is detected at the
1. Replace the main/engine PWB and check function.
F48X Image edit process control No remarks
2. Retrieve the USBLOG and contact the Service Administrative Division.
section
F49X

An error is detected at the 1. Replace the main/engine PWB and check function.
F4DX No remarks
Entity control section 2. Retrieve the USBLOG and contact the Service Administrative Division.

The USB log is necessary

An error is detected at the 1. Replace the main/engine PWB and check function.
F4FX for analysis. Please No remarks
Job control section 2. Retrieve the USBLOG and contact the Service Administrative Division.
cooperate in retrieving it

F51X
F52X
The USB log is necessary
F53X An error is detected at the 1. Replace the main/engine PWB and check function.
for analysis. Please No remarks
F55X Job control section 2. Retrieve the USBLOG and contact the Service Administrative Division.
cooperate in retrieving it
F56X
F57X

The USB log is necessary

Abnormality detected at 1. Replace the main/engine PWB and check function.
F5FX for analysis. Please No remarks
service section 2. Retrieve the USBLOG and contact the Service Administrative Division.
cooperate in retrieving it

An error is detected at the 1. Replace the main/engine PWB and check function.
F61X The error disappears if turning the power off and on.
Report compiling section 2. Retrieve the USBLOG and contact the Service Administrative Division.

The USB log is necessary

An error is detected at 1. Replace the main/engine PWB and check function. The USB log is necessary for analysis. Please cooperate in
F62X for analysis. Please
service section 2. Retrieve the USBLOG and contact the Service Administrative Division. retrieving it
cooperate in retrieving it

An error is detected at the 1. Replace the main/engine PWB and check function.
F63X No remarks
Device control section 2. Retrieve the USBLOG and contact the Service Administrative Division.

An error is detected at the

1. Replace the main/engine PWB and check function.
F68X Storage device control No remarks
2. Retrieve the USBLOG and contact the Service Administrative Division.
section

9-12
 No.1 (30 ppm model)
(4) Wiring diagram

USB_HOST

GND
GND
VBUS

DATAP
DATAN

5
4
3
2
1
LAN USB_HOST USB e-KUIO

5
4
3
2
1

AC IN
YC2008

Serial I/F
Serial I/F
Serial I/F
+5V1_PANEL_C
LCD

1 1
128×32

FPRSTN
YC1
LCDPWB

2 2
3 +3.3V1_C
3
YC2002

FPTXD
4 4
FPRXD
5 5
GND
SD Card
6 6
WAKEUP_PNLKEYM

2
1
7 7
CPU

UART

1
LIVE
YC101

2 NEUTRAL
+24V1
1 1 1 1
+24V1 YC5
2 2 2 2
GND +3.3V3

YC103
3 3 3 3 3 3 1 1
Option DIMM

DDR Memory

4 4 GND REGPAP
4 4 2 2 2 2
RS

GND
YC12

5 5 5 5 GND 3 3
GND 1 1
6 6 6 6
7 7 +24V2
7 7

PSPWB
+24V2
8 8 8 8
+24V2
9 9 9 9

5 +3.3V3
5 5 5
PSSLEEPN 4 LEDREFL
4 4 1 1 4
ZCROSSN 3 GND
3 3 2 2 3
YC20

VOSL
IDS1

RELAYON
YC13

3 3 2 2
YC105
2 2 VOPL
HEATREM1 1 1
1 1 4 4

RELAY

YC102
YC104
5 5

1
2
3
1
2
3

5 +3.3V3
1 5
2
3

1
2
3
4 LEDREFR
4
3 GND
3
VOSR
IDS2

2
YC14

LIVE
VOPR
+24V1
+24V2

1 1

NEUTRAL1

9-13
3
2
ILSW

3
2
NCTHCOM
1 1
FTHERM1
YC1

2 2
MEPWB
YC11

NCTHDET
EJPWB

3 3
+3.3V4
4 4
PDIRN
5 5
PDFULL
6 6
ES

FUSJAM
PFS

7 7
1 2 +24V1 GND
1 1 8 8
2 1 LVUFANDRN
2 2
YC19

PSFM
7
6
5
4
3
2

7
6
5
4
3
2

FTS1
Charge erasing brush
GND
GND
YC2 1 1 GND

1 1 TOPOPN
4 4
PDIRN

YC3

2 2 GND
3 3
ITSW
FTHERM2
FTHERM1

1
2
1
2
+3.3V4_LED1

2
1
2
1
1
2
3

1 1 TCONTERRN
1
2
3

2 2
FZEPWB

GND
FH1

2 2 1 1
TCSW

Heat roller
ENVS

FTH2
FTH1

POWERSW
1 1
GND
2 2
PSSW
YC2018

AIRTEMP
4 4 1 1
+3.3V3
3 3 2 2
YC24

HUMOUT
2 2 3 3
HUMCLK
OTEMS

1 1 4 4
2NR/2NS/2NT
 2NR/2NS/2NT

No.1 (35/40 ppm model)

LCD CPU +3.3V4_LED

EJPWB YC2 1 1 GND 3 3
128×64
2 2 2 2 ENVS
PDIRN
LCDPWB 3 3 1 1
UART
RS IDS1 IDS2 PFS GND
YC1 4 4 2 1
FTHERM1 FTH1
5 5 1 2

1
2
3
4
5
6
7

1
2
3

5
4
3
2
1

5
4
3
2
1
ES

+5V1_PANEL_C
FPRSTN
+3.3V1_C
FPTXD
FPRXD
GND
WAKEUP_PNLKEY

1
2
3
6 6 GND 1 3 FTH2
7 7 NCTHDET 2 2
YC1
8 8 NCTHCOM 3 1

1
2
3
4
5
6
7
8
REGPAPN

NCTHCOM
FTHERM1
NCTHDET
+3.3V4
PDIRN
PDFULL
FUSJAM
GND
LEDREFR
+3.3V3

LEDREFL
GND

+3.3V3

+3.3V3

VOSR
VOPR
VOSL
VOPL
GND

GND
3
2
1
e-KUIO

3
2
1

5
4
3
2
1
1
2
3
4
5
6
7

1
2
3
4
5
6
7
8
5
4
3
2
1
YC2002 YC12 YC13 YC14 YC11

VBUS 1 1
USB_HOST

DATAN 2 2
DATAP 3 3 YC2008
GND 4 4 SD Card Option DIMM MEPWB
GND 5 5
USB

Serial I/F
DDR Memory
USB_HOST

Serial I/F

YC5 YC20 YC19 YC3 YC2018 YC24

LAN

Serial I/F

1
2

4
3

2
1

1
2
1
2
3
4
5
6
7
8
9

1
2
3
4
5

1 1
2 2
3 3
4 4
5
1
2
3
4

1
2

4
3

2
1

1
2
1
2
3
4
5
6
7
8
9

HUMOUT
+24V1
LVUFANDRN

TCONTERRN

POWERSW

HUMCLK
HEATREM1
HEATREM2
PSSLEEPN

AIRTEMP
TOPOPN
GND

GND

GND

+3.3V3
ZCROSSN
RELAYON
+24V1
+24V1

+24V2
+24V2
+24V2
GND
GND
GND
GND
1
2
3
4
5
6
7
8
9

1
5
4
3
2

2
1
1
5
4
3
2
1
2
3
4
5
6
7
8
9

1
4
3
2
1
2

1
2
YC103 YC105

1
2

4
3
2
1
1
2

1
2
+24V2
3 3
PSFM ITSW TCSW PSSW
YC104 2 2
+24V1
1 1
OTEMS
ILSW
PSPWB
Charge erasing brush
FZEPWB

Heat roller

YC102 NEUTRAL2
5 5 4 4

YC101 4 4 FH2
LIVE 3 3
LIVE
1 1 3 3 2 2
Heat roller
2 2 NEUTRAL RELAY 2 2 FTS1 FTS2
NEUTRAL1
AC IN 1 1 1 1

FH1

9-14
 No.2 (30/35 ppm model)

7 7 PDYN
12 12
+3.3V3_VIDEO
YC1
9 9 11 11 +3.3V3_VIDEO

YC2017
VREFY 1 1
11 11 10 10
YC1

VDOY1N (N.C.)
YC2

VDO_LDOUT_1_AP 13 13 9 9 2 2
VDOY1P PDYN
VDO_LDOUT_1_AN 15 15 8 8 3 3
GND GND
17 17 7 7 4 4
PDPWB-Y

OUTPEYN
19 19 6 6
SAMPLEY1N
21 21 5 5
VDOY2N
APCPWB-Y

VDO_LDOUT_2_AP 23 23 4 4
VDOY2P
VDO_LDOUT_2_AN 25 25 3 3
SAMPLEY2N
27 27 2 2
+5.0V3
29 29 1 1

4 4 +24V3 5 5
GND
YC1

2 2 4 4
POLREMN1
1 1 3 3
POLRDYN1
3 3
PM-CY

2 2

MEPWB
POLCLK1
5 5 1 1

PDCN 13
6 6 13
+3.3V3_VIDEO
YC1

8 8 12 12
VREFC
10 10 11 11 +3.3V3_VIDEO
VDOC1N 1 1
VDO_LDOUT_1_BP 12 12 10 10
YC1

LSUTHERMC
YC2

VDOC1P 2 2
VDO_LDOUT_1_BN 14 14 9 9 PDCN
GND 8 8 3 3
16 16 GND
OUTPECN 4 4
18 18 7 7
PDPWB-C

SAMPLEC1N TH1
20 20 6 6
VDO_LDOUT_2_BP 22 22 LSUTHERMC
5 5
VDOC2N
APCPWB-C

VDO_LDOUT_2_BN 24 24 4 4
26 26 VDOC2P
3 3
SAMPLEC2N

Cleaning
+24V3 28 28 2 2
1 1 +5.0V3
+24V3 30 30 1 1
YC7

2 2

Primary transfer-K
Primary transfer-Y

Primary transfer-C
Primary transfer-M
Secondary transfer
YC101
DACSLD1
3 3
DACSLD2
4 4
DACSCLK

9-15
5 5
GND 6
6 PDMN
DACSD0 7 7 12 12
7 7 +3.3V3_VIDEO
HVREMN
YC1

HVPWB
9 9 11 11

Chager-K
Chager-Y
8

Chager-C
8 +3.3V3_VIDEO

Chager-M
YC2016

HVCLKK VREFM 1 1
11 11 10 10
YC1

9 9 VDOM1N (N.C.)
YC2

MKISENS VDO_LDOUT_1_AP 13 13 9 9 2 2
10 GND 10 VDOM1P PDMN
VDO_LDOUT_1_AN 15 15 8 8 3 3
11 GND 11 GND GND
12 12 17 17 7 7 4 4
PDPWB-M

OUTPEMN
19 19 6 6
SAMPLEM1N
21 21 5 5
VDOM2N
APCPWB-M

VDO_LDOUT_2_AP 23 23 4 4
VDOM2P
VDO_LDOUT_2_AN 25 25 3 3
SAMPLEM2N
27 27 2 2
+5.0V3
29 29 1 1
Developer SLV-K
Developer SLV-Y

Developer SLV-C
Developer SLV-M

Developer MAG-K
Developer MAG-Y

Developer MAG-C
Developer MAG-M

4 4 +24V3 5 5
GND
YC1

2 2 4 4
POLREMN1
1 1 3 3
POLRDYN1
3 3 2 2
PM-KM

POLCLK1
5 5 1 1

PDKN 13
6 6 13
+3.3V3_VIDEO
YC1

8 8 12 12
VREFK
10 10 11 11 +3.3V3_VIDEO
VDOK1N 1 1
VDO_LDOUT_1_BP 12 12 10 10
YC1

(N.C.)
YC2

VDOK1P 2 2
VDO_LDOUT_1_BN 14 14 9 9 PDKN
GND 8 8 3 3
16 16 GND
OUTPEKN 4 4
18 18 7 7
PDPWB-K

20 20 SAMPLEK1N
6 6
VDO_LDOUT_2_BP 22 22 LSUTHERMK
5 5
VDOK2N
APCPWB-K

VDO_LDOUT_2_BN 24 24 4 4
26 26 VDOK2P
3 3 1 1
SAMPLEK2N
YC3

28 28 2 2
+5.0V3 2 2
30 30 1 1
ITEMS
2NR/2NS/2NT
 No.2 (40 ppm model)

7 7 PDYN
12 12
+3.3V3_VIDEO
YC1
9 9 11 11 +3.3V3_VIDEO

YC2017
VREFY 1 1
11 11 10 10
YC1

VDOY1N (N.C.)
YC2

VDO_LDOUT_1_AP 13 13 9 9 2 2
VDOY1P PDYN
VDO_LDOUT_1_AN 15 15 8 8 3 3
GND GND
17 17 7 7 4 4
PDPWB-Y

OUTPEYN
19 19 6 6
SAMPLEY1N
21 21 5 5
VDOY2N
APCPWB-Y

VDO_LDOUT_2_AP 23 23 4 4
VDOY2P
VDO_LDOUT_2_AN 25 25 3 3
SAMPLEY2N
27 27 2 2
+5.0V3
29 29 1 1

4 4 +24V3 5 5
GND

MEPWB
YC1

2 2 4 4
POLREMN1
1 1 3 3
POLRDYN1
3 3
PM-CY

2 2
POLCLK1
5 5 1 1
+24V3 1
1
+24V3
2 2

YC7

YC101
DACSLD1
3 3
DACSLD2
4 4 PDCN
DACSCLK 6 6 13 13

Secondary transfer
5 5 +3.3V3_VIDEO
YC1

GND 6 8 8 12 12
6 VREFC
DACSD0 10 10 11 11 +3.3V3_VIDEO
7 7 VDOC1N 1 1
HVREMN VDO_LDOUT_1_BP 12 12 10 10
YC1

LSUTHERMC

PB
YC2

8 8 VDOC1P 2 2
HVCLKK VDO_LDOUT_1_BN 14 14 9 9 PDCN
9 9 GND 3 3
MKISENS 16 16 8 8 GND
10 GND 10 OUTPECN 4 4

Chager-K
18 18 7 7

Chager-C
Chager-M
PDPWB-C

TH1

HVPWB 1
11 11 SAMPLEC1N

Chager-YY
GND 20 20 6 6
12 12 LSUTHERMC
HVDCLKY VDO_LDOUT_2_BP 22 22 5 5
13 13 VDOC2N
APCPWB-C

HVDCLKM VDO_LDOUT_2_BN 24 24 4 4
14 HVDCLKC 14 26 26 VDOC2P
3 3
15 15 SAMPLEC2N
MCHGCLK 28 28 2 2
16 16 +5.0V3
MYISENS 30 30 1 1
17 17
MMISENS
18 18
MCISENS
19 19

9-16
Developer SLV-K
Developer SLV-Y

Developer SLV-C
Developer SLV-M

Developer MAG-K
Developer MAG-Y

Developer MAG-C
Developer MAG-M
7 7 PDMN
12 12
+3.3V3_VIDEO
YC1

9 9 11 11 +3.3V3_VIDEO
YC2016

VREFM 1 1
11 11 10 10
YC1

VDOM1N (N.C.)
YC2

VDO_LDOUT_1_AP 13 13 9 9 2 2
VDOM1P PDMN
VDO_LDOUT_1_AN 15 15 8 8 3 3
GND GND
17 17 7 7 4 4
PDPWB-M

OUTPEMN
19 19 6 6
SAMPLEM1N
21 21 5 5
VDOM2N
APCPWB-M

VDO_LDOUT_2_AP 23 23 4 4
VDOM2P
VDO_LDOUT_2_AN 25 25 3 3
SAMPLEM2N
27 27 2 2
+5.0V3
29 29 1 1

+24V3 8 8
1
CN2

TIMCNT +24V3
2 7 7
YC9

Primary transfer-K
Primary transfer-Y

Primary transfer-C

4 4 5 5
Primary transfer-M

TIYCNT
GND
YC1

3 6 6 2 2 4 4
HVREM POLREMN1
4 5 5 1 1 3 3
CLCNT POLRDYN1
5 4 4 3 3 2 2
PM-KM

T1CCNT 3 3 POLCLK1
6 1 1
T2KCNT 5 5
7 2 2
GND
8 1 1
Cleaning

HVPWB2

PDKN 13
6 6 13
+3.3V3_VIDEO
YC1

8 8 12 12
VREFK
10 10 11 11 +3.3V3_VIDEO
VDOK1N 1 1
VDO_LDOUT_1_BP 12 12 10 10
YC1

(N.C.)
YC2

VDOK1P 2 2
VDO_LDOUT_1_BN 14 14 9 9 PDKN
GND 8 8 3 3
16 16 GND
OUTPEKN 4 4
18 18 7 7
PDPWB-K

20 20 SAMPLEK1N
6 6
VDO_LDOUT_2_BP 22 22 LSUTHERMK
5 5
VDOK2N
APCPWB-K

VDO_LDOUT_2_BN 24 24 4 4
26 26 VDOK2P
3 3 1 1
SAMPLEK2N
YC3

28 28 2 2
+5.0V3 2 2
30 30 1 1
ITEMS
2NR/2NS/2NT
 2NR/2NS/2NT-1

No.3

OPSCK YC2
YC1 18 18 18 18 YC4
GND GND 1 1 GND Drum unit K
17 17 17 17 EECLK 2 2 EECLK DRPWB-K
OPSDI
16 16 16 16 ERASEKDR 3 3 ERASEKDR
OPRDYN
15 15 15 15 EEDATA 4 4 EEDATA
OPSDO GND
14 14 14 14 N.C 5 5 N.C CL-K
+3.3V3 1 1 1
13 13 13 13 +3.3V3 6 6 +3.3V3 ERASEKDR
FRAM2SCL DA0 2 2 2
12 12 12 12 DA0 7 7 EEPROM
ERRTEMP DA1 8 8 DA1
11 11 11 11
FRAM2SDA
10 10 10 10 YC3
WAKEUPINTN
9 9 9 9
EGASSCK GND 1 1 GND Drum unit M
8 8 8 8 MEPWB 2 2 EECLK DRPWB-M
+3.3V3 EECLK
ECPWB 7 7 7 7 ERASEMDR 3 3 ERASEMDR
EGASSDO
6 6 6 6 EEDATA 4 4 EEDATA
+3.3V1 GND
5 5 5 5 N.C 5 5 N.C CL-M
EGASEN 1 1 1
4 4 4 4 +3.3V3 6 6 +3.3V3 ERASEMDR
EGASCS DA0 2 2 2
3 3 3 3 DA0 7 7 EEPROM
GND DA1 8 8 DA1
2 2 2 2
EGASSDI
1 1 1 1 YC4
ERASEDR GND 1 1 GND
YC15 11 11 YC1 EECLK 2 2 EECLK DRPWB-C Drum unit C
DLPTHERM
10 10 ERASECDR 3 3 ERASECDR
+24V3 1 1 DRMHEATDR
2 2 YC21 9 9 EEDATA 4 4 EEDATA
RCL 1 1 REGCLDRVN TNSENM N.C 5 5 N.C GND
2 2 8
TNSENK
8 1 1 1 CL-C
7 7 +3.3V3 6 6 +3.3V3 ERASECDR
TNSENY DA0 2 2 2
6 6 DA0 7 7 EEPROM
TNSENC DA1 8 8 DA1
5 5
+24V1 4 PTSDA 4
YC2 8 8 1 1 YC2 +3.3V3 YC5
GND 3 3
7 7 2 2 PTSCL GND 1 1 GND
GND 2 2 EECLK DRPWB-Y Drum unit Y
6 6 3 3 GND EECLK 2 2
GND 1 1 ERASEYDR
5 5 4 4 ERASEYDR 3 3
4 4 GND 5 5 EEDATA 4 4 EEDATA
+24V3 N.C 5 5 N.C GND
3 3 6 6 1 1 1 CL-Y
+24V3 +3.3V3 6 6 +3.3V3 ERASEYDR
2 2 7 7 2 2 2
+24V3 DA0 7 7 DA0 EEPROM
1 1 8 8 8 8 DA1
DA1

YC6 1 1 GND Devloping unit K

2 2 +3.3V3 DLPPWB-K
DRCPWB 3 3 TNSENK
4 4 PTSCL +3.3V2 Thermistor
5 5 DLPTH 1 1
TNSENK
6 6 PTSDA 2 2
GND TS-K
7 7 DA0 3 3
4 DLPTHERM 4
8 8 DA1

YC4 YC10 YC24 YC22 YC23 YC21 YC27 YC28

HEATDRK 1 1 YC10 YC7 1 1 GND Devloping unit M
2 2 2 +3.3V3 DLPPWB-M
1
2

1
2

1
2

1
2
1
2
3

1
2
3
4

2
1

2
1

DHTK 1 GND 2 2
3 3 TNSENM
+24V1 1
2

+24V1 1
2
1
2
3
4

1
2

1
2

1
2

1
2
1
GND 2
WSTOPN 3

4 4 PTSCL +3.3V2
+24V3

+24V1
EXITFANDRN
+24V1

+24V1

LSUCYFANDRN
IMGFANDRN
TCONTFANDRN

LSUKMFANDRN

UFPFANDRN
+3.3V1_LED1

1
LEDA
LEDK
PTRE
PTRC

5 5 DLPTH TNSENM
6 6 2 2
PTSDA GND TS-M
HEATDRM 1 1 YC11 3 3
2 7 7 DA0
DHTM 1 GND 2 2 8 8 DA1 4 4

YC8 1 1 GND Devloping unit C

DLPPWB-C
2
1

2
1

2
1

2
1

HEATDRC 1 1 YC12 2 2 +3.3V3

2
DHTC GND 3 3 TNSENC
1
2

1
2

1
2

1
2

1 2 2
4 4 PTSCL +3.3V2
5 5 DLPTH 1 1
3
1
2
3
1

TNSENC
6 6 2 2
PTSDA GND TS-C
3
1
2
3
1

7 7 DA0 3 3
2
HEATDRY 1 1 YC13 4 4
CFM TRFM LSUFM2 LSUFM1 EJFM DUFM 8 8 DA1
WTCS DHTY 1 GND 2 2

(35/40 ppm (40 ppm

WTS model only) model only) (40ppm model only) YC9 1 1 GND Devloping unit Y
2 2 +3.3V3 DLPPWB-Y
3 3 TNSENY
4 4 PTSCL +3.3V2
5 5 DLPTH 1 1
TNSENY
6 6 2 2
PTSDA GND TS-Y
7 7 DA0 3 3
8 8 DA1 4 4

9-17
 No.4 (30 ppm model)

LS
PS2
PS1

+3.3V3
+3.3V3 5 1
12 1 1 LIFTSEN
4 2
YC1
11 2 2 PAPVOL1
OPSEL2 3 3

YC8
PAPVOL2
CPWB

10 3 3 2 4
OPSEL1 GND
9 4 4 1 5
OPSEL0
8 5 5

YC19
GND
7 6 6
GND
6 7 7
OPSDO
5 8 8

Serial I/F
OPSDI
4 9 9

PF(OPTION)
OPRDYN
3 10 10
2 OPSCLK 11 11
1 +24V3 12 12

STFUSA
8 8 1 1
STFUSB
7 7 2 2
YC20

STFUSAN
6 6 3 3
FUM

CAS0 4 STFUSBN
1 1 4 5 5 4 4
COM

YC5
2 2 3 3
CAS1 2 2
3 3

CSSW
CAS2 1 1
4 4
STDUPA1
4 4 1 1
STDUPA3
3 3 2 2
STDUPB3
2 2 3 3
DUEM

STDUPB1
1 1 4 4
FRAM3SCL 4
1
+3.3V3

YC3
2 3
FRAM3SDA 2
3
GND 1
4

TCONCPWB
+24V3
14 14 1 1
13 13 FEDCLDRN 2 2
PFCL

YC15

+24V3
12 12 1 1
ECPWB

11 11 MPFCLDRN 2 2
MPFCL

LIFTMTA
1 1 2 2
LIFTMTB

LM
2 2 1 1 +24V3
YC25

10 10 1 1
MIDCLDRN 2 2
9 9
MIDCL

LSUMTA 2 2
1 1 +24V3

9-18
2 2
LSUMTB 1 1 8 8 1 1
YC26

7 7 DLPKCLDRN 2 2

LSUCM
DEVCL

6 6 +24V3 1 1
+24V3 8 8 GND
1 1 5 5 2 2
TNMTKDRVN 7 7 FEDMTREMN
2 2
TM-K
YC18

4 4 3 3
3 3 FEDMTCLK 4 4
FEDMTRDYN
PCDVM

2 2 5 5
+24V3 FEMOTREV
1 1 6 6 1 1 6 6
TNMMTDRVN 5 5
2 2
TM-M

+24V3 +24V3
1 1 4 4 6 6 1 1
TNMTCDRVN GND
2 2 3 3 5 5 2 2
YC14

TM-C

IMGMTREMN
4 4 3 3
IMGMTCLK
3 3
TRM

4 4
+24V3 IMGMTRDYN
2 2 2 2 5 5
1 1 IMGCCW
TNMTYDRVN 1 1 1 1 6 6
2 2
TM-Y

+24V3
6 6 1 1
+24V3 GND
1 2 1 1 5 5 2 2
YC12

MPFSOLDRVN DLPCMTREMN
2 1 2 2 4 4 3 3
YC16

DLPCMTCLK
MPSOL

3 3 4 4
DLPCMTRDYN
DEVM

2 2 5 5
MOTREV
1 1 6 6

1 1 MPFJAM 6 6
GND 5 5
2 2
YC6

+3.3V3_LED2 4 +24V3
4
MPPCS

3 3 10 10 1 1
GND
9 9 2 2
DRMMT2REMN
YC13

8 8 3 3
DRMMT2CLK
7 7 4 4
DRMMT2RDYN
DRM2

6 6 5 5
1 1 MPFPAP 3 3 6 6
GND 2 2
2 2
MPPS

+3.3V3_LED1 1 1
3 3
+24V3
5 5 1 1
GND
4 4 2 2
DRMMTREMN
3 3 3 3
DRMMTCLK
2 2 4 4
DRMMTRDYN
DRM1

1 1 5 5
6 6
2NR/2NS/2NT
 No.4 (35/40 ppm model)

+3.3V3
LS

+3.3V3 5 1
PS2
PS1

12 1 1 LIFTSEN
4 2
YC1
11 2 2 PAPVOL1
OPSEL2 3 3

YC8
PAPVOL2
CPWB

10 3 3 2 4
OPSEL1 GND
9 4 4 1 5
OPSEL0
8 5 5

YC19
GND
7 6 6
GND
6 7 7
OPSDO
5 8 8

Serial I/F
OPSDI
4 9 9

PF(OPTION)
OPRDYN
3 10 10
2 OPSCLK 11 11 STFUSA
8 8 1 1
1 +24V3 12 12 STFUSB
YC20 7 7 2 2
STFUSAN
6 6 3 3
FUM

STFUSBN
5 5 4 4

CAS0 4 4
1 1
COM

YC5
2 2 3 3
CAS1 2 2 STDUPA1
3 3 4 4 1 1

CSSW
CAS2 1 1 STDUPA3
4 4 3 3 2 2
STDUPB3
2 2 3 3
DUEM

STDUPB1
1 1 4 4

FRAM3SCL 4
1
+3.3V3 3

YC3
2
FRAM3SDA 2 +24V3
3 16 16 1 1
GND 1
4 15 15 DUPCLDRN 2 2

TCONCPWB
DUCL

+24V3
14 14 1 1
DUPPAP 3 3 13 13 FEDCLDRN 2 2
PFCL

YC15

1 1
GND 2 2
2 2
YC7
+3.3V3_LED3 1 1

DUPCS
3 3 +24V3
12 12 1 1
ECPWB

11 11 MPFCLDRN 2 2
MPFCL

LIFTMTA
1 1 2 2 +24V3
LIFTMTB 10 10 1 1

LM
2 2 1 1 MIDCLDRN
YC25

9 9 2 2
MIDCL

LSUMTA 2 2
1 1 +24V3

9-19
2 2
LSUMTB 1 1 8 8 1 1
YC26

7 7 DLPKCLDRN 2 2

LSUCM
DEVCL

6 6 +24V3 1 1
+24V3 8 8 GND
1 1 5 5 2 2
TNMTKDRVN 7 7 FEDMTREMN
2 2
TM-K
YC18

4 4 3 3
3 3 FEDMTCLK 4 4
FEDMTRDYN
PCDVM

2 2 5 5
+24V3 FEMOTREV
1 1 6 6 1 1 6 6
TNMMTDRVN 5 5
2 2
TM-M

+24V3 +24V3
1 1 4 4 6 6 1 1
TNMTCDRVN GND
2 2 3 3 5 5 2 2
YC14

TM-C

IMGMTREMN
4 4 3 3
IMGMTCLK
3 3
TRM

4 4
+24V3 IMGMTRDYN
2 2 2 2 5 5
1 1 IMGCCW
TNMTYDRVN 1 1 1 1 6 6
2 2
TM-Y

+24V3
6 6 1 1
+24V3 GND
1 2 1 1 5 5 2 2
YC12

MPFSOLDR DLPCMTREMN
2 1 2 2 4 4 3 3
YC16

DLPCMTCLK
MPSOL

3 3 4 4
DLPCMTRDYN
DEVM

2 2 5 5
MOTREV
1 1 6 6

1 1 MPFJAM 6 6
GND 5 5
2 2
YC6

+3.3V3_LED2 4 +24V3
4
MPPCS

3 3 10 10 1 1
GND
9 9 2 2
DRMMT2REMN
YC13

8 8 3 3
DRMMT2CLK
7 7 4 4
DRMMT2RDYN
DRM2

6 6 5 5
1 1 MPFPAP 3 3 6 6
GND 2 2
2 2
MPPS

+3.3V3_LED1 1 1
3 3
+24V3
5 5 1 1
GND
4 4 2 2
DRMMTREMN
3 3 3 3
DRMMTCLK
2 2 4 4
DRMMTRDYN
DRM1

1 1 5 5
6 6
2NR/2NS/2NT
 2NR/2NS/2NT-1

Paper Feeder (Option)

2 YC114

PFLM
1 LMOT-
YC7 2 1 LMOT+
1 2
PFPS1

YC6 6 1 +24V 6 1
GND

PFPFM
5 2 5 2
#TMDRY
YC115 4 3 4 3
3 PFPS2 3 4
TMCLK
3 4
2 TMLOCK
2 5 TMDIR 2 5
1 1 6 1 6

PFLS
GND
YC4 3 1
2 2 +24V
1 3

5 YC113
4
3 7
2 11

Paper feeder I/F

1 OPSEL0
12
YC5 9 1 8
OPSEL2
8 2 10
OPSEL1
7 3 9
+3.3V
6 4 6
OPSDO
5 5 5
OPSDI
4 6 4
OPRDYN
4 3 7 3
YC111 OPSCLK
3 2 8 2
GND
2 1 9 1
1
PFMPWB
+24V
7 12 1 12
6 YC10 11 2 11
YC3 OPSEL2
5 10 3 10
OPSEL1

Engine I/F
4 9 4 9
3 OPSEL0
8 6 GND
8
2 7 5 7
1 +3.3V
6 7 OPSDO
6
PFRCSW

5 8 5
OPSDI
4 9 OPRDYN 4
GND 3 10 OPSCLK 3
2 2 1 2 YC14 2 11 2
1 1 COV_SW 2 1 GND
1 12 1
PFPFCL

+24V
3 3 FG
2 2 TB1 1 1 1

PFCSSW
1 1 1 1
PAPSIZ0
4 4
FEEDCLN YC2 2 2 PAPSIZ1 3 3
3 3 GND 2 2
PAPSIZ2
4 4 1 1
PFPCCL

1 4 YC9
3 3 +24V
2 3
2 2 3 2
TRANSCLN
1 1 4 1
3 3 OUT

PFFS
YC1 GND
1 1
2 2 +3.3V 2 2
1 1 3 3

9-20
Installation Guide

PF-5100 (Paper Feeder)

Installation Guide
PF-5100

安裝手冊
㉘㾌㙼⇨㉐
Руководство по установке
For U.S.A.: For Canada:
To install the optional paper feeder unit, contact your service representative. CAN ICES-3B/NMB-3B
This unit is for use only with Models ECOSYS M6035cidn, ECOSYS M6535cidn, ECOSYS M6030cdn,
ECOSYS M6530cdn, ECOSYS P6035cdn, ECOSYS P7040cdn and ECOSYS P6130cdn.

PF-5100 安裝PF-5100 1 2
PF-5100 㻼㻲㻙㻡㻝㻜㻜㉘㾌
㉘㾌
PF-5100 㻼㻲㻙㻡㻝㻜㻜䛾タ⨨
PF-5100
PF-5100
Установка PF-5100

1 2 3 2 1
4

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1 2

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Printed in China 303PK5631001 First edition 2015.1

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