SERVICE

MANUAL
Published in Jul.’02
842DF110
 CAUTION
Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent
type recommended by the manufacturer. Dispose of used batteries according to the
manufacturer’s instructions.

CAUTION
Double-pole/neutral fusing.
 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
compliance 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,
lightning 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 attention. ..............................................................................................................................

• 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 accident. ...............................................................................................................................

• 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 main
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
immediately. ......................................................................................................................................

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. ................................................................................
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CONTENTS

1-1 Specifications
1-1-1 Specifications ....................................................................................................................................... 1-1-1
1-1-2 Parts names and their functions ........................................................................................................... 1-1-3
(1) Copier ............................................................................................................................................. 1-1-3
(2) Operation panel .............................................................................................................................. 1-1-4
1-1-3 Machine cross section .......................................................................................................................... 1-1-5
1-1-4 Drive system ........................................................................................................................................ 1-1-6
(1) Drive system 1 (drive motor and eject motor drive trains) .............................................................. 1-1-6
(2) Drive system 2 (paper feed motor drive train) ................................................................................ 1-1-7

1-2 Handling Precautions

1-2-1 Drum .................................................................................................................................................... 1-2-1
1-2-2 Toner .................................................................................................................................................... 1-2-1
1-2-3 Installation environment ....................................................................................................................... 1-2-1

1-3 Installation
1-3-1 Unpacking and installation ................................................................................................................... 1-3-1
(1) Installation procedure ..................................................................................................................... 1-3-1
1-3-2 Setting initial copy modes .................................................................................................................... 1-3-9
1-3-3 Copier management ........................................................................................................................... 1-3-10
(1) Using the copier management mode ............................................................................................ 1-3-10
(2) Setting department management items ........................................................................................ 1-3-11
(3) Copy default ................................................................................................................................. 1-3-11
(4) Machine default ............................................................................................................................ 1-3-13
(5) Report ........................................................................................................................................... 1-3-14
(6) Language ...................................................................................................................................... 1-3-14
1-3-4 Installing the key counter (option) ...................................................................................................... 1-3-15
1-3-5 Installing the drawer heater (option) ................................................................................................... 1-3-17
1-3-6 Installing the paper feed desk (option) ............................................................................................... 1-3-18
1-3-7 Installing the large paper deck (option) .............................................................................................. 1-3-21
1-3-8 Installing the saddle finisher/switchback unit (option) ........................................................................ 1-3-25
1-3-9 Installing the sheet-through document holder (option) ....................................................................... 1-3-34
1-3-10 Installing the Facsimile System (option) ............................................................................................. 1-3-35
1-3-11 Installing the Printing System (option) ................................................................................................ 1-3-43
1-3-12 Installing the Scanning System (option) ............................................................................................. 1-3-45
1-3-13 Installing the duplex unit (option) ....................................................................................................... 1-3-48
1-3-14 Installing the built-in finisher (option) .................................................................................................. 1-3-50
1-3-15 Installing the job separator (option) .................................................................................................... 1-3-55
1-3-16 Installing the Network Facsimile System (option) .............................................................................. 1-3-59

1-4 Maintenance Mode

1-4-1 Maintenance mode ............................................................................................................................... 1-4-1
(1) Executing a maintenance item ....................................................................................................... 1-4-1
(2) Maintenance mode item list ............................................................................................................ 1-4-2
(3) Contents of maintenance mode items ............................................................................................ 1-4-5

1-5 Troubleshooting
1-5-1 Paper misfeed detection ...................................................................................................................... 1-5-1
1-1-1
(1) Paper misfeed indication ................................................................................................................ 1-5-1
(2) Paper misfeed detection conditions ................................................................................................ 1-5-3
(3) Paper misfeeds ............................................................................................................................. 1-5-16
1-5-2 Self-diagnosis ..................................................................................................................................... 1-5-27
(1) Self-diagnostic function ................................................................................................................ 1-5-27
(2) Self-diagnostic codes ................................................................................................................... 1-5-28
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1-5-3 Image formation problems ................................................................................................................. 1-5-42

(1) No image appears (entirely white). ............................................................................................... 1-5-43
(2) No image appears (entirely black). ............................................................................................... 1-5-44
(3) Image is too light. ......................................................................................................................... 1-5-45
(4) Background is visible. ................................................................................................................... 1-5-45
(5) A white line appears longitudinally. .............................................................................................. 1-5-45
(6) A black line appears longitudinally. .............................................................................................. 1-5-46
(7) A black line appears laterally. ....................................................................................................... 1-5-46
(8) One side of the copy image is darker than the other. ................................................................... 1-5-46
(9) Black dots appear on the image. .................................................................................................. 1-5-47
(10) Image is blurred. ........................................................................................................................... 1-5-47
(11) The leading edge of the image is consistently misaligned with the original. ................................ 1-5-47
(12) The leading edge of the image is sporadically misaligned with the original. ................................ 1-5-48
(13) Paper creases. ............................................................................................................................. 1-5-48
(14) Offset occurs. ............................................................................................................................... 1-5-48
(15) Image is partly missing. ................................................................................................................ 1-5-49
(16) Fixing is poor. ............................................................................................................................... 1-5-49
(17) Image is out of focus. ................................................................................................................... 1-5-49
(18) Image center does not align with the original center. ................................................................... 1-5-50
(19) Image is not square. ..................................................................................................................... 1-5-50
1-5-4 Electrical problems ............................................................................................................................. 1-5-51
(1) The machine does not operate when the main switch is turned on. ............................................. 1-5-51
(2) The drive motor does not operate (C2000). ................................................................................. 1-5-51
(3) The paper feed motor does not operate (C2500). ........................................................................ 1-5-51
(4) The eject motor does not operate. ................................................................................................ 1-5-51
(5) The upper lift motor does not operate (C1010). ........................................................................... 1-5-52
(6) The lower lift motor does not operate (C1020). ............................................................................ 1-5-52
(7) The scanner motor does not operate. .......................................................................................... 1-5-52
(8) Cooling fan motor 1 does not operate. ......................................................................................... 1-5-52
(9) Cooling fan motor 2 does not operate. ......................................................................................... 1-5-52
(10) Cooling fan motor 3 does not operate. ......................................................................................... 1-5-52
(11) Cooling fan motor 4 does not operate. ......................................................................................... 1-5-52
(12) Cooling fan motor 5 does not operate. ......................................................................................... 1-5-53
(13) Cooling fan motor 6 does not operate. ......................................................................................... 1-5-53
(14) Cooling fan motor 7 does not operate. ......................................................................................... 1-5-53
(15) Cooling fan motor 8 does not operate. ......................................................................................... 1-5-53
(16) Cooling fan motor 9 does not operate. ......................................................................................... 1-5-53
(17) The upper paper feed clutch does not operate. ............................................................................ 1-5-53
(18) The lower paper feed clutch does not operate. ............................................................................ 1-5-53
(19) Feed clutch 1 does not operate. ................................................................................................... 1-5-53
(20) Feed clutch 2 does not operate. ................................................................................................... 1-5-54
(21) Feed clutch 3 does not operate. ................................................................................................... 1-5-54
(22) The bypass paper feed clutch does not operate. ......................................................................... 1-5-54
(23) The bypass feed clutch does not operate. .................................................................................... 1-5-54
(24) The registration clutch does not operate. ..................................................................................... 1-5-54
(25) The feedshift solenoid does not operate. ..................................................................................... 1-5-54
(26) The toner feed solenoid does not operate. ................................................................................... 1-5-54
(27) The cleaning lamp does not turn on. ............................................................................................ 1-5-55
(28) The exposure lamp does not turn on. ........................................................................................... 1-5-55
(29) The exposure lamp does not turn off. ........................................................................................... 1-5-55
(30) The fixing heater does not turn on (C6000). ................................................................................. 1-5-55
(31) The fixing heater does not turn off. ............................................................................................... 1-5-55
1-1-2
(32) Main charging is not performed. ................................................................................................... 1-5-55
(33) Transfer charging is not performed. ............................................................................................. 1-5-55
(34) No developing bias is output. ....................................................................................................... 1-5-56
(35) The original size is not detected. .................................................................................................. 1-5-56
(36) The original size is not detected correctly. ................................................................................... 1-5-56
(37) The touch panel keys do not work. ............................................................................................... 1-5-56
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(38) The message requesting paper to be loaded is shown

when paper is present in the upper drawer. ................................................................................. 1-5-56
(39) The message requesting paper to be loaded is shown
when paper is present in the lower drawer. .................................................................................. 1-5-56
(40) The message requesting paper to be loaded is shown
when paper is present on the bypass tray. ................................................................................... 1-5-56
(41) The size of paper in the upper drawer is not displayed correctly. ................................................ 1-5-56
(42) The size of paper in the lower drawer is not displayed correctly. ................................................. 1-5-57
(43) The printing width of the paper on the bypass tray is not detected correctly. ............................... 1-5-57
(44) A paper jam in the paper feed, paper conveying or fixing section is indicated
when the main switch is turned on. .............................................................................................. 1-5-57
(45) The message requesting covers to be closed is displayed
when the front cover and conveying cover are closed. ................................................................ 1-5-58
(46) Others. .......................................................................................................................................... 1-5-58
1-5-5 Mechanical problems ......................................................................................................................... 1-5-59
(1) No primary paper feed. ................................................................................................................. 1-5-59
(2) No secondary paper feed. ............................................................................................................ 1-5-59
(3) Skewed paper feed. ...................................................................................................................... 1-5-59
(4) The scanner does not travel. ........................................................................................................ 1-5-59
(5) Multiple sheets of paper are fed at one time. ................................................................................. 1-5-59
(6) Paper jams. .................................................................................................................................. 1-5-59
(7) Toner drops on the paper conveying path. ................................................................................... 1-5-60
(8) Abnormal noise is heard. .............................................................................................................. 1-5-60

1-6 Assembly and Disassembly

1-6-1 Precautions for assembly and disassembly ......................................................................................... 1-6-1
(1) Precautions ..................................................................................................................................... 1-6-1
(2) Running a maintenance item .......................................................................................................... 1-6-2
1-6-2 Paper feed section ............................................................................................................................... 1-6-3
(1) Detaching and refitting the forwarding, paper feed and separation pulleys .................................... 1-6-3
(2) Detaching and refitting the bypass separation, bypass papaer feed and
bypass forwarding pulleys .............................................................................................................. 1-6-5
(3) Adjustment after roller and clutch replacement ............................................................................ 1-6-10
(3-1) Adjusting the leading edge registration of image printing .................................................... 1-6-10
(3-2) Adjusting the leading edge registration for memory image printing ..................................... 1-6-11
(3-3) Adjusting the center line of image printing ........................................................................... 1-6-12
(3-4) Adjusting the margins for printing ........................................................................................ 1-6-13
(3-5) Adjusting the amount of slack in the paper .......................................................................... 1-6-14
1-6-3 Optical section .................................................................................................................................... 1-6-15
(1) Detaching and refitting the exposure lamp ................................................................................... 1-6-15
(2) Detaching and refitting the scanner wires .................................................................................... 1-6-16
(2-1) Detaching the scanner wires ............................................................................................... 1-6-16
(2-2) Refitting the scanner wires .................................................................................................. 1-6-17
(3) Detaching and refitting the laser scanner unit .............................................................................. 1-6-20
(4) Adjusting the skew of the laser scanner unit (reference) .............................................................. 1-6-22
(5) Detaching and refitting the ISU (reference) .................................................................................. 1-6-23
(6) Adjusting the position of the ISU (reference) ................................................................................ 1-6-25
(7) Adjusting the longitudinal squareness (reference) ....................................................................... 1-6-26
(8) Adjusting magnification of the scanner in the main scanning direction ........................................ 1-6-27
(9) Adjusting magnification of the scanner in the auxiliary scanning direction ................................... 1-6-28
(10) Adjusting the scanner leading edge registration ........................................................................... 1-6-29
(11) Adjusting the scanner center line ................................................................................................. 1-6-30
1-1-3
(11) Adjusting the margins for scanning an original on the contact glass ............................................ 1-6-31
1-6-4 Drum section ...................................................................................................................................... 1-6-32
(1) Detaching and refitting the drum unit ............................................................................................ 1-6-32
(2) Detaching and refitting the main charger unit ............................................................................... 1-6-32
(3) Detaching and refitting the drum separation claw assemblies ..................................................... 1-6-33
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1-6-5 Developing section ............................................................................................................................. 1-6-34

(1) Detaching and refitting the developing unit .................................................................................. 1-6-34
1-6-6 Transfer section ................................................................................................................................. 1-6-35
(1) Detaching and refitting the transfer roller assembly ..................................................................... 1-6-35
1-6-7 Fixing section ..................................................................................................................................... 1-6-36
(1) Detaching and refitting the fixing unit ........................................................................................... 1-6-36
(2) Detaching and refitting the heat roller separation claws ............................................................... 1-6-36
(3) Detaching and refitting the press roller ......................................................................................... 1-6-37
(4) Detaching and refitting the fixing heater M and S ......................................................................... 1-6-38
(5) Detaching and refitting the heat roller ........................................................................................... 1-6-39
(6) Detaching and refitting the fixing unit thermistor .......................................................................... 1-6-40

1-7 Requirements on PCB Replacement

1-7-1 Upgrading the firmware on the main PCB ............................................................................................ 1-7-1
1-7-2 Replacing the backup ROM ................................................................................................................. 1-7-2
1-7-3 Adjustment-free variable resisters (VR) ............................................................................................... 1-7-3

2-1 Mechanical construction

2-1-1 Paper feed section ............................................................................................................................... 2-1-1
2-1-2 Main charging section .......................................................................................................................... 2-1-5
2-1-3 Optical section ...................................................................................................................................... 2-1-7
(1) Original scanning ............................................................................................................................ 2-1-8
(2) Image printing ................................................................................................................................. 2-1-9
2-1-4 Developing section ............................................................................................................................. 2-1-12
(1) Formation of magnetic brush ........................................................................................................ 2-1-13
(2) Computing the absolute humidity ................................................................................................. 2-1-14
(3) Single component developing system ....................................................................................... 2-1-14-1
2-1-5 Transfer and separation sections ....................................................................................................... 2-1-15
2-1-6 Cleaning and charge erasing sections ............................................................................................... 2-1-17
2-1-7 Fixing section ..................................................................................................................................... 2-1-18
2-1-8 Eject and switchback sections ........................................................................................................... 2-1-20

2-2 Electrical Parts Layout

2-2-1 Electrical parts layout ........................................................................................................................... 2-2-1
(1) PCBs .............................................................................................................................................. 2-2-1
(2) Switches and sensors ..................................................................................................................... 2-2-2
(3) Motors ............................................................................................................................................. 2-2-4
(4) Other electrical components ........................................................................................................... 2-2-5

2-3 Operation of the PCBs

2-3-1 Power source PCB ............................................................................................................................... 2-3-1
2-3-2 Main PCB ............................................................................................................................................. 2-3-4
2-3-3 Operation unit PCB ............................................................................................................................ 2-3-13
2-3-4 Scanner drive PCB ............................................................................................................................. 2-3-18
2-3-5 CCD PCB ........................................................................................................................................... 2-3-20

2-4 Appendixes
Timing chart No. 1 .......................................................................................................................................... 2-4-1
Timing chart No. 2 .......................................................................................................................................... 2-4-2
Timing chart No. 3 .......................................................................................................................................... 2-4-3
Timing chart No. 4 .......................................................................................................................................... 2-4-4
Timing chart No. 5 ..........................................................................................................................................
1-1-4 2-4-5
Timing chart No. 6 .......................................................................................................................................... 2-4-6
Timing chart No. 7 .......................................................................................................................................... 2-4-7
Timing chart No. 8 .......................................................................................................................................... 2-4-8
Timing chart No. 9 .......................................................................................................................................... 2-4-9
Timing chart No. 10 ...................................................................................................................................... 2-4-10
Timing chart No. 11 ...................................................................................................................................... 2-4-11
Chart of image adjustment procedures ........................................................................................................ 2-4-12
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Maintenance parts list ................................................................................................................................... 2-4-15

Periodic maintenance procedures ................................................................................................................ 2-4-16
Optional devices supplied parts list .............................................................................................................. 2-4-18
General wiring diagram ................................................................................................................................ 2-4-20

1-1-5
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1-1-1 Specifications

Type ............................................... Desktop

Copying system .............................. Indirect electrostatic system
Originals ......................................... Sheets and books
Maximum size: A3/11" × 17"
Original feed system ...................... Fixed
Copy paper ..................................... Drawer: Plain paper (64 – 80 g/m2)
Bypass table: Plain paper (60 – 160 g/m2)
Special paper: Transparencies, tracing paper, colored paper, letterhead and
envelopes (when using the printer function only)
Note: Use the bypass table for special paper.
Copying sizes ................................. Maximum: A3/11" × 17"
Minimum: A6R/51/2" × 81/2" (When the bypass table is used)
Magnification ratios ........................ Manual mode: 25 – 400%, 1% increments
Auto copy mode: fixed ratios
Metric
1:1 ± 1.0%, 1:4.00/1:2.00/1:1.41/1:1.22/1:1.15/1:0.86/1:0.81/1:0.70/1:0.50/1:0.25
Inch
1:1 ± 1.0%, 1:4.00/1:2.00/1:1.29/1:1.21/1:0.78/1:0.64/1:0.50/1:0.25
Copy speed .................................... At 100% magnification in copy mode:
25 cpm copier
A3/11" × 17": 15 copies/min.
B4/81/2" × 14": 18 copies/min.
A4/11" × 81/2": 25 copies/min.
A4R/81/2" × 11": 20 copies/min.
35 cpm copier
A3/11" × 17": 19 copies/min.
B4/81/2" × 14": 23 copies/min.
A4/11" × 81/2": 35 copies/min.
A4R/81/2" × 11": 25 copies/min.
40 cpm copier
A3/11" × 17": 19 copies/min.
B4/81/2" × 14": 23 copies/min.
A4/11" × 81/2": 40 copies/min.
A4R/81/2" × 11": 25 copies/min.
First copy time ................................ From 3.9 s (A4/11" × 81/2")
Warm-up time ................................. 60 s or less (room temperature 20°C/68°F, 65% RH)
In preheat/energy saver mode: 30 s or less (room temperature 20°C/68°F, 65% RH)
[priorty to power save]
In preheat/energy saver mode: 10 s or less (room temperature 20°C/68°F, 65% RH)
[priorty to recovery]
Paper feed system ......................... Automatic feed
Capacity:
Drawers: 500 sheets
Manual feed
Capacity:
Bypass: 200 sheets
Continuous copying ........................ 1 - 250 sheets
Photoconductor .............................. a-Si (drum diameter 40 mm)
Charging system ............................ Single positive corona charging (500 µA)
Exposure light source ..................... Semiconductor laser
Exposure scanning system ............ Polygon mirror
Developing system ......................... Dry, reverse developing (magnetic brush)
Developer: 1-component, magnetism toner
Developing bias: +1.72 kV AC
Developing shift bias: 160 V
Toner replenishing: automatic from a toner container
Transfer system ............................. Transfer roller (100 µA)
Separation system ......................... Separation electrode (60 or 10 µA depending on the paper)

1-1-1
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Fixing system ................................. Heat roller

Heat source: halogen heaters (120 V specifications:main 600 W, sub 400W/ 220-240
V specifications:main 630 W, sub 420 W)
Control temperature: 165°C/329°F (at normal ambient temperature)
Abnormally high temperature protection device: 170°C/338°F thermostat
Fixing pressure: 107.8 N
Charge erasing system .................. Exposure by cleaning lamp
Cleaning system ............................. Cleaning blade
Scanning system ............................ Flat bed scanning by CCD image sensor
Bit map memory ............................. 9 MB (standard)
Image storage memory .................. 23 MB (standard)
Resolution ...................................... 600 × 600 dpi
Light source .................................... Inert gas lamp
Dimensions .................................... 585 (W) × 646 (D) × 745 (H) mm
23" (W) × 252/5" (D) × 291/3" (H)
Weight ............................................ Approx. 79 kg/165 lbs
Floor requirements ......................... 1356 (W) × 646 (D) mm
533/8" (W) × 252/5" (D)
Functions ........................................ Self-diagnostics, preheat, automatic copy density control, original size detection, auto
paper size selection function, auto magnification selection mode, zoom copy mode,
standard copy mode, size zoom mode, photo mode, margin mode, page separation
copy mode, border erase mode, layout copy, sort mode, copy management function,
language selection function
Power source ................................. 120 V AC, 60 Hz, 11 A
....................................................... 220 – 240 V AC, 50/60 Hz, 4.5 A (Average)
Power consumption ........................ 1320 W (120V)
1368W (220 – 240V)
Options ........................................... STDF*, SRDF, paper feed desk, large paper deck, duplex unit, job separator, finisher,
booklet stitcher, built-in finisher, key counter, fax board, printer board, network printer
board, network scanner board
*Optional for 25 cpm copier only.

1-1-2
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1-1-2 Parts names and their functions

(1) Copier

Figure 1-1-1

1 Original cover @ Main switch

2 Operation panel # Copy store section
3 Conveying cover handle $ Platen
4 Conveying cover % Original size scales
5 Bypass tray ^ Upper drawer
6 Insert guides & Lower drawer
7 Toner container * Side cover
8 Toner container release lever ( Length adjustment plate
9 Toner disposal tank ) Width adjustament lever
0 Cleaning shaft ⁄ Handles for transport
! Front cover

1-1-3
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(2) Operation panel

%$ # @ ! 0 7 6 5 4

Printer Facsimile Auto Selection

Priority Output Priority Output Management Interrupt Energy Saver

Copier 1 2 3 Reset

Printer 4 5 6 Stop
Clear

Scanner 7 8 9
Start
Fax
0

^ & 9 8 1 2 3

Figure 1-1-2

1 Start key (Indicator) 0 Auto selection key (Indicator)

2 Stop/clear key ! Facsimile priority output key (Indicator)
3 Reset key @ Printer priority output key (Indicator)
4 Energy Saver (preheat) key # Brightness adjustment control dial
5 Interrupt key (Indicator) $ Copier key (Indicator)
6 Management key % Printer key (Indicator)
7 * (Default) key ^ Scanner key (Indicator)
8 Numeric key & Fax key (Indicator)
9 Touch panel

1-1-4
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1-1-3 Machine cross section

Light path

Paper path

Figure 1-1-4 Machine cross section

1 Paper feed section

2 Main charging section
3 Optical section
4 Developing section
5 Transfer and separation section
6 Cleaning and charge erasing section section
7 Fixing section
8 Eject and switchback section

1-1-5
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1-1-4 Drive system

(1) Drive system 1 (drive motor and eject motor drive trains)

As viewed from machine rear

Figure 1-1-4

1 Drive motor gear 9 Registration clutch gear

2 Drum gear Z76H/Z30H 0 Gear Z63H/Z45S
3 Drum gear Z70H ! Gear Z37S
4 Gear Z76H/Z35H @ Gear Z24S
5 Gear Z50H # Joint gear Z32S
6 Gear Z36S/Z31H $ Eject motor gear
7 Gear Z37H/28H % Gear Z47S/Z28S
8 Gear Z34H ^ Eject gear Z30S

1-1-6
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(2) Drive system 2 (paper feed motor drive train)

As viewed from machine rear

Figure 1-1-5

1 Paper feed motor gear ! Lower paper feed clutch gear

2 Gear Z76H/Z35S @ Gear Z41S/P15
3 Feed gear Z25 # Bypass drive belt
4 Feed gear Z25 $ Gear Z60S/P20
5 Feed gear Z25 % Gear Z41S/P18
6 Feed gear Z25 ^ Gear Z40S/Z32S
7 Gear Z41S/Z24S/P30 & Container drive belt
8 Upper paper feed clutch gear * Gear Z24S/P40
9 Paper feed drive belt ( Gear Z40S/Z25S
0 Gear Z41S/Z24S ) Container gear

1-1-7
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1-2-1 Drum
Note the following when handling or storing the drum.
• When removing the drum unit, never expose the drum surface to strong direct light.
• Keep the drum at an ambient temperature between 0°C/32°F and 35°C/95°F and at a relative humidity not higher than
85% RH. Avoid abrupt changes in temperature and humidity.
• Avoid exposure to any substance which is harmful to or may affect the quality of the drum.
• Do not touch the drum surface with any object. Should it be touched by hands or stained with oil, clean it.

1-2-2 Toner
Store the toner in a cool, dark place. Avoid direct light and high humidity.

1-2-3 Installation environment

1. Temperature: 10 - 35°C/50 - 95°F

2. Humidity: 15 - 85%RH
3. Power supply: 120 V AC, 11 A
220 - 240 V AC, 4.5 A (Average)
4. Power source frequency: 50 Hz ±0.3%/60 Hz ±0.3%
5. Installation location
• Avoid direct sunlight or bright lighting. Ensure that the photoconductor will not be exposed to direct sunlight or other
strong light when removing paper jams.
• Avoid extremes of temperature and humidity, abrupt ambient temperature changes, and hot or cold air directed onto
the machine.
• Avoid dust and vibration.
• Choose a surface capable of supporting the weight of the machine.
• Place the machine on a level surface (maximum allowance inclination: 1° ).
• Avoid air-borne substances that may adversely affect the machine or degrade the photoconductor, such as
mercury, acidic of alkaline vapors, inorganic gasses, NOx, SOx gases and chlorine-based organic solvents.
• Select a room with good ventilation.
6. Allow sufficient access for proper operation and maintenance of the machine.
Machine front: 1000 mm/393/8" Machine rear: 300 mm/1113/16"
Machine right: 300 mm/1113/16" Machine left: 300 mm/1113/16"

e c

a: 745 mm/295/16"
b: 585 mm/23"
c: 646 mm/253/8"
d: 1510 mm/597/16"
e: 1032 mm/405/8"
a d f: 961 mm/3713/16"

Figure 1-2-1 Installation dimensions

1-2-1
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1-3-1 Unpacking and installation

(1) Installation procedure

Start

Unpack.

Remove the tapes and pad.

Install the optional paper feed desk or

large paper deck. Carry out initial developer setting
(maintenance item U130).

Remove the pins holding light source units 1 and 2.

Load paper.

Install the original cover or the DF.

Output an own-status report
(maintenance item U000).

Install other optional devices.

Exit maintenance mode.

Install the toner container.

Print out the user setting list.

Install the toner disposal tank.

Make test copies.

Connect the power cord.

Attach the function seat.

Completion of the machine installation.

1-3-1
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Moving the machine

When moving the machine, pull out the four handles for transport on the right and left sides and hold them.
* For the left front handle for transport, open the door and push it into the machine before pulling out the handle.

Handle for
transport Handle for
transport

Handle for
transport

Handle for
transport

Figure 1-3-1

1-3-2
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Unpack.

Figure 1-3-2 Unpacking

1 Copier 0 Bottom pad

2 Power cord ! Machine cover
3 Upper left pad @ Bar code labels
4 Upper right pad # Belt
5 Outer case $ Eject spacer
6 Inner frame % Spacer*
7 Lower right pad ^ Plastic bag
8 Lower left pad & Operation guide
9 Skid
*220-230 V specifications only.

1-3-3
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Remove the tapes and pad.

1. Remove the tapes holding the front cover,
bypass tray, drawers and original detection
switch.
2. Remove the pad at the eject section.

Tape

Pad

Tape

Tape

Tapes

Figure 1-3-3

3. Remove the three tapes holding the pins for light

source units 1 and 2.
4. Remove the tape holding the conveying cover.
5. Remove the two tapes holding the power cord.*
*120 V specifications only.

Tape Tapes

Tape

Tape

Figure 1-3-4

1-3-4
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6. Pull upper and lower drawers out and remove the

tape holding each of the drawer lift.

Tape

Figure 1-3-5

Install the optional paper feed desk or large paper deck.

1. Install the optional paper feed desk or large paper
deck as necessary (see page 1-3-18 to 1-3-24).

Remove the pins holding light source units 1 and 2.

1. Remove the two pins for light source unit 1 and Light source unit 1 pins
the pin for light source unit 2.

Light source unit 2 pin

Figure 1-3-6

Install the original cover or the DF.

1. Install the original cover or DF (see page 1-3-34 when installing the DF).

Install other optional devices.

1. Install the optional devices (job separator, duplex unit, finisher, fax board, and/or printer board etc.) as necessary
(see pages 1-3-35 to 1-3-56).

1-3-5
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Install the toner container.

1. Open the front cover.
2. Tap the top of the toner container five to six
times. Toner container

Figure 1-3-7

3. Shake the toner container approximately 10

times in the horizontal direction to stir toner.
Toner container

Figure 1-3-8

4. Gently push the toner container into the copier Toner container
along the rails.
*Push the container all the way into the copier until
it locks in place.

Figure 1-3-9

1-3-6
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Install the toner disposal tank.

1. Install the toner disposal tank in the copier.
2. Close the front cover.

Toner disposal tank

Figure 1-3-10

Connect the power cord.

1. Connect the power cord to the connector on the
copier.*
*200-240 V specifications only.
2. Insert the power plug into the wall outlet.

Carry out initial developer setting (maintenance item U130).

1. Turn the main switch on and enter the maintenance mode by entering “10871087” using the numeric keys.
2. Enter “130” using the numeric keys and press the start key.
3. Press the start key to execute the maintenance item.
The drive stops within approximately 5 minutes.
4. Press the stop/clear key.

Load paper.
1. Load paper in the drawer.

Output an own-status report (maintenance item U000).

1. Enter “000” using the numeric keys and press the start key.
2. Select “MAINTENANCE” and press the start key to output a list of the current settings of the maintenance items.
3. Press the stop/clear key.

Exit maintenance mode.

1. Enter "001" using the numeric keys and press the start key.
The machine exits the maintenance mode.

Print out the user setting list.

1. Press the * key to enter default setting and press the [Print form] key. The counter report will be output.

1-3-7
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Make test copies.

1. Place an original and make test copies.

Attach the function seat.

1. Remove the PET film from the operation panel. PET film
2. Fit the relevant function sheet.
If the DF has been installed, select a function
sheet among No. 1 to 4 based on installation of
the fax board and the printer board.
If the DF has not been installed, select a function
sheet among No. 5 to 8 based on installation of
the fax board and the printer board.
3. Refit the PET film to its original position.

PET film
Function seat

Figure 1-3-11

Completion of the machine installation.

1-3-8
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1-3-2 Setting initial copy modes

Factory settings are as follows:

Maintenance Contents Factory setting

item No.

U253 Switching between double and single counts Double count

U254 Turning auto start function on/off ON
U255 Setting auto clear time 90s
U256 Turning auto preheat/energy saver ON
function on/off
U258 Switching copy operation at toner SINGLE MODE, 70
empty detection
U260 Changing the copy count timing After ejection
U342 Setting the ejection restriction ON
U343 Switching between duplex/simplex copy mode OFF
U344 Setting preheat/energy saver mode ENERGY STAR

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1-3-3 Copier management

In addition to a maintenance function for service, the copier is equipped with a management function which can be operated
by users (mainly by the copier administrator). In this copier management mode, settings such as default settings can be
changed.

(1) Using the copier management mode

Start

Press the * (Default setting) key.

Press the [Management] key.

Enter the Execute department manage-

management code. ment items (page 1-3-11).

Press the [Close] key.

Press the [Copy default] key.

Enter the Make copy default settings

management code. (page 1-3-11).

Press the [Close] key.

Press the [Machine default] key.

Enter the Make machine default settings

management code. (page 1-3-13).

Press the [Close] key.

Press the [Print form] key.

Output the setting list

(page 1-3-14).

Press the [Language] key.

Set the language (page 1-3-14).

End

1-3-10
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(2) Setting department management items (3) Copy default

Registering a new department code Exposure mode

Sets a department code and the limit of the Selects the exposure mode at power-on.
number of copies for that department. 1. Select “Exposure mode” and press the
1. Press the [ID-code Reg./Del.] key. [Change #] key.
2. Press the [Register] key and press the [# 2. Select “Manual” or “Auto”.
keys].
3. Enter a department code (8-digit) using the Exposure steps
numeric keys and press the [# keys].
Sets the number of exposure steps for the
4. Enter the number of copies limit using the
manual exposure mode.
numeric keys. Setting range is 1000 pieces of
1. Select “Exposure steps” and press the
units to 1000-999000 pieces. Entering “0”
[Change #] key.
enables unlimited copying.
2. Select “1 step” or “0.5 step”.
5. Press the [Close] key.
6. Press the [Close] key.
Original type
7. Press the [On] key.
8. Press the [Close] key. Selects the copy quantity mode at power-on.
1. Select “Original type” and press the [Change
Deleting a department code #] key.
2. Select “Text+Photo”, “Photo” or “Text”.
1. Press the [ID-code Reg./Del.] key.
2. Select the department code to be deleted and
Eco print
press the [Delete] key.
3. Select “Yes” or “No”. Selects the toner economy mode to be
4. Press the [Close] key. automatically on or off at power-on.
5. Press the [On] key. 1. Select “ECO print” and press the [Change #]
6. Press the [Close] key. key.
2. Select “On” or “Off”.
Altering the copy limit
Paper selection
1. Press the [# of copy correct] key.
2. Select the department code to be altered and Sets whether the same sized paper as the
press the [Correction] key. original to be copied is automatically selected.
3. Enter the number of copies limit using the 1. Select “Paper selection” and press the
numeric keys. Setting range is 1000 pieces of [Change #] key.
units to 1000-999000 pieces. Entering “0” 2. Select “APS” or “Default cassette”.
enables unlimited copying.
4. Press the [Close] key. Default drawer
5. Press the [Close] key.
6. Press the [On] key. Sets the drawer to be selected in cases such as
7. Press the [Close] key. after the reset key is pressed.
1. Selct “Default cassette” and press the
Clearing copy counts [Change #] key.
2. Select priority drawer.
1. Press the [Counter clear] key.
2. Select “Yes” or “No”. Default magnification
3. Press the [Close] key.
Selects whether auto magnification selection or
Viewing copy counts 100% magnification is to be given priority when
the sizes of the original and copy paper are
1. Press the [Counter by ID-code] key. different.
2. View copy counts using the cursor up/down 1. Select “Default magnification” and press the
keys. [Change #] key.
3. Press the [Close] key. 2. Select “Manual” or “AMS”.
4. Press the [Close] key.
Auto exposure adjustment
Print management list
Adjusts the exposure for the auto exposure
1. Press the [Print the list] key. mode.
If A4/11" × 81/2" paper is present, the list is 1. Select “Auto exposure adjustment” and press
automatically printed out. Otherwise, select the [Change #] key.
the paper source and press the start key. 2. Press the [Lighter] or [Darker] key to adjust
default setting of copy exposure.
Setting range: -3 to +3

1-3-11
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Manual exposure adjustment (Mixed) Display register key

Adjusts the exposure to be used when text and Sets whether or not to display the Register key in
photo original is selected for the image mode. the copy operation screen.
1. Select “Manual exp. adj. (Mixed)” and press 1. Select “Display register key” and press the
the [Change #] key. [Change #] key.
2. Press the [Lighter] or [Darker] key to adjust 2. Select “On” or “Off”.
default setting of copy exposure.
Setting range: -3 to +3 Customize the base screen (main function)
Changes the layout of the main functions of the
Manual exposure adjustment (Text)
base screen.
Adjusts the exposure to be used when text 1. Select “Customize (Main function)” and press
original is selected for the image mode. the [Change #] key.
1. Select “Manual exp. adj. (Text)” and press the 2. Change the layout to press [Move ahead] or
[Change #] key. [Move to behind].
2. Press the [Lighter] or [Darker] key to adjust
default setting of copy exposure. Customize the copy operating screen (add function)
Setting range: -3 to +3
Changes the layout of the functions except the
main functions of the copy operating screens.
Manual exposure adjustment (Photo)
1. Select “Customize (Add function)” and press
Adjusts the exposure to be used when photo the [Change #] key.
original is selected for the image mode. 2. Change the layout to press [ ← ].
1. Select “Manual exp. adj. (Photo)” and press the
[Change #] key.
2. Press the [Lighter] or [Darker] key to adjust
default setting of copy exposure.
Setting range: -3 to +3

Margin width
Sets the default setting of the margin width for the
margin copying.
1. Select “Default margin width” and press the
[Change #] key.
2. Press the +/- keys to adjust default margin
width.
Setting range: 0 to 3/4" (inch specifications)
0 to 18 mm (metric specifications)

Border erase width

Sets the default setting of the border erase width
for the border erase mode.
1. Select “Default erase width” and press the
[Change #] key.
2. Press the +/- keys to adjust default erase
width.
Setting range: 0 to 3/4" (inch specifications)
0 to 18 mm (metric specifications)

Copy limit
Sets the number of copies limit for multiple
copying.
1. Select “Preset limit” and press the [Change #]
key.
2. Press the +/- keys to set copy preset in one
job.
Setting range: 1 to 999 copies

1-3-12
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(4) Machine default Auto shutoff time

Auto drawer switching Sets the auto shutoff time.

1. Select “Auto shut-off time” and press the
Sets whether the auto drawer switching function [Change #] key.
is available. 2. Press the +/- keys to set the auto shutoff
1. Select “Auto cassette switching” and press time.
the [Change #] key. Setting range: 15 to 240 minutes
2. Select “On” or “Off”.
Auto preheat time
Special paper
Sets the auto preheat time.
Sets the drawer for such special paper as colored 1. Select “Auto preheat time” and press the
paper or recycled paper. [Change #] key.
1. Select “Special paper” and press the [Change 2. Press the +/- keys to set the auto preheat
#] key. time.
2. Select “1st paper” or “2nd paper”. Setting range: 1 to 45 minutes
Note: Set the auto preheat time to be shorter
APS for special paper than the auto shutoff time.
Sets whether to use the paper source with the
special paper for auto paper selection and auto Copy eject location setting
drawer switching. Selects whether to eject copies to copier, finisher
1. Selct “APS for special paper” and press the or job separator.
[Change #] key. 1. Select “Select Copy output mode” and press
2. Select “On” or “Off”. the [Change #] key.
2. Select the eject location.
Paper size (upper drawer)
Sets the paper size for upper drawer. Key sound
1. Select “Paper size (1st cassette)” and press Sets if a beep sounds when a key on the key
the [Change #] key. press panel is pressed.
2. Select the paper size. 1. Select “Key sound ON/OFF” and press the
[Change #] key.
Paper size (lower drawer) 2. Select “On” or “Off”.
Sets the paper size for lower drawer.
1. Select “Paper size (2nd cassette)” and press Silent mode
the [Change #] key. Selects whether or not to enter silent mode after
2. Select the paper size. copying.
1. Select “Silent Mode” and press the [Change
Paper type (upper drawer) #] key.
Sets the paper type (standard or special) for 2. Select “On” or “Off”.
upper drawer.
1. Select “Paper type (1st cassette)” and press Management code change
the [Change #] key. Changes the management code.
2. Select the paper type. 1. Select “Management code change” and press
the [Change #] key.
Paper type (lower drawer) 2. Enter the 4-digit management code using the
Sets the paper type (standard or special) for numeric keys and press the enter key.
lower drawer.
1. Select “Paper type (2nd cassette)” and press Auto shutoff
the [Change #] key. Sets whether the auto shutoff function is
2. Select the paper type. available.
1. Select “Auto shut-off” and press the [Change
Check bypass sizing #] key.
Sets whether or not to display the paper size key 2. Select “On” or “Off”.
of the basic screen when copying with the bypass
tray.
1.Select “Check bypass express” and press the
[Change #] key.
2. Selct “On” or “Off”.

1-3-13
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(5) Report

Outputs the setting reports.

1. Press the [Print form] key.
2. Select the report.
Copy report/Option report/Counter report/
Machine report

(6) Language

Switches the language to be displayed on the

press panel.
1. Press the [Language] key.
2. Select the display language.

1-3-14
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1-3-4 Installing the key counter (option)

Key counter installation requires the following parts:

Key counter set (P/N 2A369703)
Contents of the set:
• Key counter cover (P/N 2A360010)
• Key counter retainer (P/N 66060030)
• Key counter cover retainer (P/N 66060022)
• Key counter mount (P/N 66060040)
• Key counter socket assembly (P/N 41529210)
• Four (4) M4 × 6 bronze TP-A screws (P/N B4304060)
• Two (2) M4 × 10 bronze TP-A screws (P/N B4304100)
• One (1) M4 × 20 bronze TP-A screw (P/N B4304200)
• One (1) M4 × 6 chrome TP-A screw (P/N B4104060)
• One (1) M3 × 8 bronze binding screw (P/N B1303080)
• One (1) M4 × 30 bronze binding screw (P/N B1304300)
• Two (2) M3 × 6 bronze flat-head screws (P/N B2303060)
• One (1) M3 bronze nut (P/N C2303000)

Procedure
1. Fit the key counter socket assembly to the M4 × 6 screws (B4304060)
key counter retainer using the two screws
and nut. Key counter retainer (66060030)
2. Fit the key counter mount to the key counter
cover using the two screws, and attach the Key counter mount (66060040)
key counter retainer to the mount using the M3 nut
two screws. (C2303000) Key counter cover
(2A360010)

M4 × 6 screws (B4304060)

Key counter socket assembly

(41529210)
M3 × 6 flat-head screws (B2303060)

Figure 1-3-12

3. Remove the three screws holding the middle

right cover and then the cover.
4. Cut out the aperture plate on the middle right Aperture
cover using nippers. Middle right cover
5. Pass the connect inside the copier through
the aperture and refit the middle right cover.

Connector

Figure 1-3-13
1-3-15
2DF

6. Pass the connector of the key counter

through the aperture in the key counter
retainer, and insert into the connector of the
copier.
7. Seat the projection of the key counter cover
retainer in the aperture in the middle right
cover.
8. Fit the key counter cover with the key counter
socket assembly inserted to the key counter
cover retainer on the copier using the screw.
9. Insert the key counter into the key counter
socket assembly.

Key counter cover retainer (66060022)

Key conuter cover

Connector

Connector

Projection

M4 × 30 screws
(B1304300)

Figure 1-3-14

10. Turn the main switch on and enter the

maintenance mode.
11. Run maintenance item U204 and select
“KEY-COUNTER.”
12. Exit the maintenance mode.
13. Check that the message requesting the key
counter to be inserted is displayed on the
touch panel when the key counter is pulled
out.
14. Check that the counter counts up as copies
are made.

1-3-16
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1-3-5 Installing the drawer heater (option)

Drawer heater installation requires the following parts:

• Drawer heater (P/N 34860030): for 120 V specifications
• Drawer heater (P/N 33960020): for 220 - 240 V specifications
• Band (P/N M2107120)

Procedure
1. Pull the upper and lower drawers out.
2. Fit the drawer heater to the bottom of the Aperture
Drawer heater
machine and bind the wire of the drawer
heater with the band.
3. Put the wire of the drawer heater out of the
machine through the aperture of the rear
frame.

Band

Figure 1-3-15

4. Remove the four screws and the two

connectors and then remove the power
source unit from the rear side of the machine.

Connectors

Power source unit

Figure 1-3-16

5. Remove the two screws and pull out the wire

of the drawer heater that has been put out of
the rear frame while raising the power source
PCB unit.
6. Insert the connector of the drawer heater into
the connector of the machine.
7. Refit all the removed parts.

Power source PCB unit

Connector
Wire of the drawer heater

Figure 1-3-17
1-3-17
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1-3-6 Installing the paper feed desk (option)

Preparation
1. Remove the lower drawer from the copier.

Lower drawer

Figure 1-3-18

2. Place the copier on top of the paper feed

desk with the positioning pins at the front left
and right of the paper feed desk aligned with
the holes in the base of the copier.

Holes

Pins

Paper feed desk

Figure 1-3-19

3. Secure the copier to the paper feed desk

using the two pins.
4. Refit the lower drawer to the copier.

Pin Pin

Paper feed desk

Figure 1-3-20

1-3-18
 2DF

5. Remove the screw and then the cover from

the rear of the paper feed desk.
6. Remove the screw from the copier.

Screw

Screw Cover

Figure 1-3-21

7. Insert the 12-P connector of the paper

feed desk into the connector on the copier.

12-P connector

Figure 1-3-22

8. Route the harness through the clamp on the

retainer.
9. Fit the retainer using the screw removed in
step 6 and the two CVM4 × 06 cross-head Retainer
chromate binding screws.
10. Refit the cover. Screw

Clamp
Harness
CVM4 × 06 cross-head
chromate binding screws

Figure 1-3-23

1-3-19
2DF

11. Turn the four leveling bolts until they reach

the floor and adjust them to level the
machine.

Leveling bolts

Figure 1-3-24

12. Fit the two stays to the left of the paper feed
desk (one toward the front and the other the
rear) using the two M4 × 10 chrome TP
screws such that they make contact with the
floor.
Note: Do not fit the stays if the finisher is to
be installed.
13. Connect the copier power plug to the wall
outlet and turn the copier main switch on.
14. Load paper into the drawer and make a test
copy to check the operation.

M4 × 10 chrome
TP screws
Stays

Figure 1-3-25

1-3-20
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1-3-7 Installing the large paper deck (option)

Preparation
1. Remove the lower drawer from the copier.

Lower drawer

Figure 1-3-26

2. Place the copier on top of the large paper

deck with the positioning pins at the front left
and right of the large paper deck aligned with
the holes in the base of the copier.

Hole
Hole

Pin Pin

Large paper desk

Figure 1-3-27

3. Secure the copier to the large paper deck

using the two pins.
4. Refit the lower drawer to the copier.

Pin Pin

Large paper desk

Figure 1-3-28

1-3-21
2DF

5. Remove the screw and then the cover from

the rear of the large paper deck.
6. Remove the screw from the rear of the copier.

Screw
Screw
Cover

Figure 1-3-29

7. Insert the 12-pin connector of the large paper

deck into the connector on the copier.

12-pin connector

Figure 1-3-30

8. Fit the retainer using the screw removed in

step 6 and the two CVM4 × 06 cross-head
chromate binding screws.
9. Refit the cover using the screw (see step 5).
Retainer

CVM4 × 06 cross-head
chromate binding screw

CVM4 × 06 cross-head
chromate binding screw

Screw

Figure 1-3-31

1-3-22
 2DF

10. Turn the four leveling bolts until they reach

the floor and adjust them to level the
machine.

Leveling bolts

Figure 1-3-32

11. Fit the stay to the lower left of the large paper
deck toward the rear using the two M4 × 16
chrome TP screws such that it makes contact
with the floor.
Note: Do not fit the stay if the finisher is to be
installed.

Stay
M4 × 16 chrome
TP screws

Figure 1-3-33

Screw
Setting the paper size
1. Open the large paper deck.
2. Move the sliders at the machine front and
rear inward (two at each point).
Leteral size adjuster
3. Remove the screw from each of the front and
rear lateral size adjusters.
Sliders

Sliders
Leteral size adjuster

Screw

Figure 1-3-34

1-3-23
 2DF

4. Insert the upper tabs and lower tabs of the

front and rear lateral size adjusters into the
upper slots and lower slots respectively such
that the size indicators point to the size of
paper to be used. Secure the lateral size
adjusters using the screw for each.
5. Move the front and rear sliders (two at each
point) outward until they make contact with
the lateral size adjusters.
Upper slots Upper slots Size indicator
Lower tabs
Upper tabs
A4
LT
B5

Lower tabs

B5
Upper tab LT
A4
Lower slots Upper tab Size indicator
Lower slots Upper slots Upper slots

Figure 1-3-35

Steps 6 to 9 are for metric specifications only.

6. Remove the screw from each of the left and
right longitudinal size adjusters.
7. Align the pin holes in the left and right
longitudinal size adjusters with the A4 pins or
B5 pins according to the size of paper to be
used. Secure the adjusters using the screw
for each.
8. Connect the copier power plug to the wall
outlet and turn the copier main switch on.
9. Run maintenance item 208 and set the paper
size for the large paper deck (B5/A4).
10. Load paper into the drawer and make a test
copy to check the operation.

Longitudinal size adjuster

Screw Screw Screw

Longitudinal size adjuster

B5 pins A4 pins Pin hole

B5

A4

Pin hole

Figure 1-3-36

1-3-24
 2DF

1-3-8 Installing the saddle finisher/switchback unit (option)

Preparation
1. Open the conveying cover of the copier.
2. Remove the two screws securing the
feedshift guide assembly and then the Screws
assembly.

Feedshift guide
assembly
Conveying
cover

Figure 1-3-37

3. Fit the curl eliminator to the conveying cover Projection Screw

Screw
such that the projections on the cover fit into
the two ends of the curl eliminator.
4. Secure the curl eliminator using the two
Projection
screws removed in step 2.

Curl eliminator

Figure 1-3-38

Conveying cover
5. Close the conveying cover.
6. Fit the latch catch to the conveying cover
using two M4 × 10 binding screws.

Latch catch
M4 × 10 binding screws

Figure 1-3-39

1-3-25
2DF

7. Remove the two screws securing the shield

cover and then the cover.

Screws

Shield cover
8. Detach the 10-pin connector (four wires) from Figure 1-3-40
CN4 on the main PCB and connect it to J2 on
the IPC PCB.

IPC PCB
10-pin connector

J2

CN15
Main PCB
CN4

10-pin connector

Figure 1-3-41
9. Connect J1 on the IPC PCB to CN15 on the
main PCB.
10. Insert the three board supports of the IPC
PCB into the main PCB to secure them.
11. Refit the shield cover.

IPC PCB

Board
CN15 supports

Main PCB
J1

Board support
IPC PCB

Figure 1-3-42
1-3-26
 2DF

12. Align the rail retainer with the groove of the Rail retainer
Guide rail
guide rail and attach the rail retainer to the
guide rail. Make sure that the plate spring of
the rail retainer fits into the groove and the
edge of the guide rail fits between the pulleys
on the reverse side of the rail retainer.

Plate spring

When the switchback unit is not to be installed

13. Orient the guide rail such that its pulley is
positioned toward the copier, and then fit a
caster rail to each side of the rail retainer.

When the switchback unit is to be installed

14. Attach a spacer to each end of the rail Figure 1-3-43
retainer using two M4 × 6 binding screws for
each.
15. Orient the guide rail such that its pulley is
positioned toward the copier, and then fit the
caster rails to the spacer.

M4 × 6
binding screws

Caster rail
Rail retainer Pulley
Rail retainer
Spacer

M4 × 6
binding screws
Rail retainer

Caster rail
Spacer

Guide rail Guide rail Caster rail

Caster rail

Figure 1-3-44
Rail retainer
16. Secure the rail retainer to the copier using
two M4 × 10 binding screws such that the
front and rear gaps between the floor and rail
retainer are approximately 10 mm.
10 mm 10 mm

Rail retainer

M4 × 10
binding screws

Figure 1-3-45
1-3-27
2DF

17. Slightly lift the bottom of the finisher and

insert the rail fixing plate into the finisher, and
then join them by inserting two M4 × 6
binding screws loosely.

Finisher

Rail fixing plate

M4 × 6
binding screws
18. Insert the guide rail into the rail fixing plate Rail fixing plate
and secure it using an M4 × 6 binding screw
at the position where the screw hole in it and
that in the rail fixing plate meet.
Note: When installing the switchback unit, Figure 1-3-46
use screw hole a in the guide rail; when not
installing the switchback unit, use screw
hole b in the guide rail.
M4 × 6
binding screw

Screw hole a

Screw hole b

Rail fixing plate

Guide rail

Figure 1-3-47
19. Adjust the position of the rail fixing plate so M4 × 6
that the gap between the plate and the floor is binding screws
approximately 8.0 mm, and then tighten the Rail fixing plate
two loosely fitted M4 × 6 binding screws.

8.0 mm

M4 × 6
binding screws

Figure 1-3-48
1-3-28
 2DF

20. Fit the eject tray to the finisher by hooking the

two claws and secure it using two M4 × 6 Claw
binding screws. Claw

Eject tray

M4 × 6
binding screws

Figure 1-3-49

21. Open the front panel and insert the stapler

unit into the finisher.
22. Close the front panel.

Stapler unit

Front panel

Figure 1-3-50

Installing the switchback unit Finisher

1. Remove the two support rubbers on the right
of the finisher and loosely fit the two M3 × 8
binding screws in their places.
2. Remove the two screws.
Screw

Support rubber

Support rubber
Screw

M3 × 8
binding screws

Figure 1-3-51

1-3-29
2DF

3. Release the hook of the switchback unit by

lifting the release lever.

Switchback unit

Release lever

Hook
Figure 1-3-52
4. Fit the switchback unit to the finisher by
Finisher
hanging the hook of the switchback unit on
the loosely fitted M3 × 8 binding screws.
5. Tighten the loosely fitted M3 × 8 binding Hook
screws.
6. Secure the switchback unit using two M4 × 12 Switchback unit
TP screws.
7. Close the switchback unit.

M4 × 12
TP screw

M3 × 8
binding screws
M4 × 12
TP screw

Figure 1-3-53

8. Remove the two screws from the cover of the

finisher.

Finisher

Screws

Figure 1-3-54

1-3-30
 2DF

9. Insert the rib of the front cover into the groove

in the top cover of the switchback unit, and
then fit the front cover to the finisher.
10. Secure the front cover by fitting an M4 × 12
TP screw and M4 × 16 TP screw into the
holes where screws were inserted
(see step 8).
Rib

Finisher

M4 × 12
TP screw

Groove

M4 × 16
Front cover TP screw

Figure 1-3-55

11. Fit the two support rubbers removed in step 1

to the switchback unit.
12. If the finisher and the copier do not engage
securely, perform the following finisher height
adjustment.

Support rubbers

Figure 1-3-56

Adjusting the height of the finisher

1. Remove the two covers from the lower left
part of the finisher by removing one screw
each. Cap
2. Remove the four caps from above the four
casters of the finisher.

Cap

Cover

Screws Caster
Cover
Figure 1-3-57
1-3-31
2DF

3. Loosen the two screws on each of the four

casters.
4. Adjust the height of the rear right caster by
turning its adjustment bolt using a cross-
headed screwdriver so that the axis of the pin
of the latch catch is aligned with the middle of
the three markings on the right of the slot of
the finisher or switchback unit when the
finisher is joined to the copier (viewed from
the machine front).
Note: Turning the adjustment bolts clockwise
lowers the finisher, while turning them
counterclockwise lifts the finisher.

Pin

Adjustment bolt

Slot

Screws Pin

Caster

Figure 1-3-58

5. Adjust the height of the front right caster in

the same manner as in step 4 so that the axis
of the pin of the latch catch is aligned with the
marking above the slot and the center of the
two hooks on the finisher align with the center
of the holes on the latch catch when the
finisher is joined to the copier (viewed from
above).

Pin

Slot
Hooks Holes

Pin

Figure 1-3-59

1-3-32
 2DF

6. Adjust the height of the left two casters in the

same manner as in step 4 so that the top and
bottom gaps (A) between the finisher and the
copier are the same when the finisher is A
detached from the copier.
7. Retighten the two screws on each of the four
casters.
8. Refit the two covers and four caps. A

Figure 1-3-60

Connecting the signal cable

1. Connect the signal cable of the finisher to the
copier. If the switchback unit has been
installed, connect the signal cable of the
switchback unit, as well.
2. Insert the copier power plug to the wall outlet
and turn the main switch on.
3. Make test copeies and check that the finisher
and the switchback unit operate correctly.
Signal cable of
the finisher

Signal cable of
the switchback unit

Figure 1-3-61

1-3-33
2DF

1-3-9 Installing the sheet-through document holder (option)

Preparation
1. Insert the DF into the copier. DF

Figure 1-3-62

2. Connect the connector of the DF to the DF

copier.
3. Insert the copier power plug to the wall outlet
and turn the main switch on.

Connector

Figure 1-3-63

4. Run maintenance item U211 to set “SADF”

(25 cpm copier only).
5. Place the original on the DF and make a test
copy. Check the operation and the copy
image.
6. If the copy image is different from the original,
run the following adjustment.
• Maintenance item U70 (sub-scan line
adjustment)(see page 1-4-15)
• Maintenance item U71 (leading edge timing
adjustment)(see page 1-4-16)
• Maintenance item U72 (center line
adjustment)(see page 1-4-17)

1-3-34
 2DF

1-3-10 Installing the Facsimile System (option)

Procedure
1. Fit the battery pack into the NCU retainer as
shown in the illustration. M3 × 06 chrome
2. Fit the speaker onto the two catches on the binding screws
NCU retainer, and fasten it into place with NCU cable
one M3 × 06 chrome binding screw.
3. Fasten the NCU board to the NCU retainer Connector
with four M3 × 06 chrome binding screws. CN1
4. Connect the NCU cable to connector CN1 on
the NCU board.
NCU board

Catches

Speaker

Battery pack M3 × 06 chrome binding screw

NCU retainer

Figure 1-3-64

5. Adhere the lower-sheet to the auxiliary power FAX-PCB-Power cable Upper-sheet

source retainer. M3 × 06 chrome
6. Fasten the auxiliary power source PCB, binding screws
together with the upper-sheet, to the auxiliary
power source retainer, using three M3 × 06
chrome binding screws.
7. Pass the FAX-PCB-Power cable through the
cutout in the upper-sheet, and connect it to Auxiliary power
connector CN1 on the auxiliary power source source PCB
PCB. Connector CN1
M3 × 06 chrome
binding screw
Auxiliary power
source retainer

Lower-sheet

Figure 1-3-65

8. Remove 13 screws and take off the rear

Rear cover
cover.

Screws

Figure 1-3-66

1-3-35
2DF

• If the printing system is installed Printer system

9. Remove the 2 screws holding the printer
system in place, and pull the printing system
out of the shield cover.
Screws

Figure 1-3-67

10. Remove 13 screws and take off the shield Shield cover
cover.

Screws

Figure 1-3-68

11. Move the film out of the way to the left, and M3 × 06 chrome
fasten the fax board into place using six M3 × Fax board binding screws
06 chrome binding screws.

Film

Figure 1-3-69

1-3-36
 2DF

12. Fasten the NCU unit into place from the NCU board
bottom with two M3 × 06 chrome binding connector NCU board
screws. NCU unit
13. Connect the three connectors from the NCU
board to the corresponding connectors on the
fax board, as follows:
• Speaker 2-pin connector → CN7
• NCU board connector → CN3
• Battery connector → CN6

CN3

CN6
CN7

Speaker
2-pin connecto
M3 × 06 chrome
Battery
binding screws
connector
Figure 1-3-70

14. Remove the film that fixes the three positive Optional interface
connectors of the power source PCB from the mounting plate
optional interface mounting plate.
Important: Dispose of the film that has been
removed.
Film

Figure 1-3-70-1

1-3-37
2DF

15. Connect the three positive connectors on the Green positive Auxiliary power
power board to the corresponding connectors connector source PCB
on the auxiliary power source PCB, as
follows.
• White positive connector → TB1 (white)
• Green positive connector → TB2 (green)
• White positive connector → TB3

TB2
TB3
TB1

White positive
White positive connector
connector

Figure 1-3-71

16. Fit the catch on the auxiliary power unit into

the mount hole in the copier, and fasten the
auxiliary power unit into place with one M3 ×
06 chrome binding screw.
M3 × 06 chrome
binding screw

Catch Mount hole

Figure 1-3-72

1-3-38
1-3-37-1
 2DF

This page is intentionally left blank.

1-3-39
2DF

17. Through the opening of controller-box above 2-pin connector

the speaker, connect the FAX-PCB-Power Fax board with green cable
cable on the auxiliary power source PCB to
2-pin connector
connector CN8 on the fax board.
18. Connect the 2-pin connector to the 2-pin
Connector CN8
connector with green cable.

FAX-PCB-Power cable

Auxiliary power source PCB

Figure 1-3-73

19. Unlock CN1 on the fax board by pulling its Connector CN44
connector housing.
20. Hold the fax cable with its conductive side
facing up, insert it into connector CN1, then
CN44
push the housing back in to lock the
connector.
21. Hold the other end of the fax cable with its
conductive side facing down, and connect it
to connector CN44 on the main PCB. (Pull
the CN44 housing out to release the CN1
connector lock, then insert the cable, and
then push the housing back in.)
Important: Be sure to push the fax cable all
the way in, and be sure that the connection is Fax cable
straight. A poor connection may result in a
variety of problems.

Fax board Connector CN1

Figure 1-3-74

Memory module
Important: The Memory module DIMM (8MB) Memory slot DIMM (8MB)
must be installed onto the fax board. Please be
sure that you do not install it onto the main PCB.
22. Insert the Memory module DIMM (8MB) at an
angle into the memory slot on the fax board.
23. Push the free end of the module down toward
the board.

Figure 1-3-75

1-3-40
1-3-38
 2DF

24. Fasten the shield cover into place with 13

screws.
Shield cover

Screws

Figure 1-3-76

25. Remove 1 screw and take off the modular

cover.

Screw

Modular cover

Figure 1-3-77

26. Hang the modular cover onto the holes on the

shield cover, and fasten it into place with 1
screw.

Screw

Holes

Modular cover

Figure 1-3-78

1-3-41
1-3-39
2DF

• If the printing system was installed Printing system

27. Reinstall the printing system into the shield
cover, fastening it into place with 2 screws.

Screws

Figure 1-3-79

28. Reattach the rear cover with 13 screws. Rear cover

Screws

Figure 1-3-80

29. Adhere the certification labels to the rear Certification

cover at the locations indicated in the labels
illustration (only 120 V Spac.).

Figure 1-3-81

1-3-42
1-3-40
 2DF

30. Take the power label from the fax-kit label

sheet, and adhere it to the copier directly
under the main switch.

Main switch

Power label

Figure 1-3-82

31. Take the alphabet labels from the fax-kit label Alphabet labels Management Interrupt Energy Sever

sheet, and adhere them above the

corresponding numeric keys on the operation ABC DEF

panel. 1 2 3 Reset
JKL MNO

• In Asia, use the “PQRS TUV WXYZ” label,

4 5 6 S Stop/
and do not use the “PRS TUV WXZ” and PQRS TUV WXYZ
Clear

“OPER” labels. 7 8 9
OPER

0 Start

Figure 1-3-83

32. Connect the L terminal to the phone circuit

using a modular connector cable.
Important: On 120 V systems, use the
included modular connector cable to make
the connection.

L terminal

L
Modular connector
cable

Figure 1-3-84

1-3-43
1-3-41
2DF

Initialization procedure after installation of facsimile system

1. Insert the copier power plug to the wall outlet
and turn the main switch on.
2. Run maintenance item U601.
3. Enter a destination code using the numeric
keys (refer to the destination code list) and
then press the start key.
* Enter a destination code with three digits.

Code Destination Code Destination Code Destination

000 Japan 159 South Africa 253 Sweden
009 Australia 169 Thailand France
080 Hong Kong 181 U.S.A. Austria
084 Indonesia 242 South America Switzerland
088 Israel 243 Saudi Arabia Belgium
108 Malaysia 253 CTR21 (European nations) Denmark
126 New Zealand Italy Finland
136 Peru Germany Portugal
137 Philippines Spain Ireland
152 Middle East U.K. Norway
156 Singapore Netherlands 254 Taiwan

4. Enter the OEM code (000) and then press the

start key. INI. KEEP DATA
5. Confirm that the display is changed as shown COMPLETED XXX 000
in the illustration.
* At the position of @, the version number of
the software is displayed.
INI. KEEP DATA
COMPLETED V@.@@

SELECT THE MAINTENANCE NUMBER.

Initial keep data U601

Figure 1-3-85

6. Press the cursor key to change the display to

maintenance item U602. INI. SHIP DATA
7. Press the start key and confirm that the COMPLETED XXX 000
display is changed as shown in the
illustration.
* At the position of @, the version number of
the software is displayed. INI. SHIP DATA
8. After completing the installation, run a COMPLETED V@.@@
communications test to confirm that the fax
system is working correctly.

SELECT THE MAINTENANCE NUMBER.

Initial ship data U602

Figure 1-3-86

1-3-44
1-3-42
 2DF

1-3-11 Installing the Printing System (option) Cover

Procedure
1. Remove 2 screws and take off the cover.

Screws

Figure 1-3-87

2. Push the printing system all the way in along Printing system
the rails, and fasten it with 2 screws.

Screws

Figure 1-3-88

Install the (optional) network printer board.

3. Remove 2 screws and take off the cover.
4. Push the network printer board all the way in
along the rails, and fasten it with 2 screws.

Screws Screws

Cover Netwark
printer
board

Figure 1-3-89

1-3-43
2DF

Install the (optional) hard disk.

5. Remove 2 screws and take off the cover.
6. Push the hard disk all the way in along the
rails, and fasten it with 2 screws.

Hard desk
Cover

Screws Screws

Figure 1-3-90

Installing the Optional Bar-Code Reader

7. Fasten the serial connector in place with 2 Clamp
screws.
8. Tie the excess cord with the two bands, so
that the free cord length comes to about 1
meter.
9. Peel off the backing from one of the clamps, Wing tray
adhere the clamp to the copier at the position Cramps
shown in the illustration, and pass the wire
though the clamp.
• If a wing tray is installed, attach the other
clamp to the wing tray and pass the wire
through both clamps.

Serial connector

Bands
Screws

Figure 1-3-91

Installing the Optional Memory DIMM Option mermory

10. Remove the printing system, and insert the DIMM
optional memory DIMM firmly into either of Hooks
the memory slots. Push the DIMM firmly into
the slot so that the two hooks (one hook at
each end of the slot) snap closed.
• The board provides two DIMM slots, and can
accept up to two optional DIMMs. If installing
a single DIMM, you can use either slot.

Hooks Memory
slots

Figure 1-3-92
1-3-44
 2DF

1-3-12 Installing the Scanning System (option)

Procedure
1. Remove 13 screws and take off the rear
Rear cover
cover.

Screws

Figure 1-3-93

• If the printing system is installed Printer system

2. Remove the 2 screws holding the printer
system in place, and pull the printing system
out of the shield cover.
Screws

Figure 1-3-94

3. Remove 13 screws and take off the shield

cover.
Shield cover

Screws

Figure 1-3-95

1-3-45
2DF

4. Insert the RTC board at an angle into the RTC board

RTC board slot on the main PCB.
RTC board slot
5. Push the free end of the RTC board down
toward the fax board.

Main PCB

Figure 1-3-96

6. Remove 2 screws, and take off the cover. Cover

Screws

Figure 1-3-97

7. Firmly push connector CN1 on the scanner Connector CN50

board all the way into connector CN50 on the Connector CN1
main PCB.
8. Fasten the scanner board with 2 screws.
Scanner board

Screws

Figure 1-3-98

1-3-46
 2DF

9. Fasten the shield cover into place with 13

screws.
Shield cover

Screws

Figure 1-3-99

• If the printing system was installed Printing system

10. Reinstall the printing system into the shield
cover, fastening it into place with 2 screws.

Screws

Figure 1-3-100

11. Reattach the rear cover with 13 screws. Rear cover

Screws

Figure 1-3-101

1-3-47
2DF

1-3-13 Installing the duplex unit (option)

Preparation
1. Open the conveying cover.
2. Remove the screw from the front and rear
struts respectively to remove the struts and
remove the conveying cover in the horizontal
direction.
Screws
Conveying cover

Conveying cover

Struts

Figure 1-3-102

3. Insert the nut plates into the paper conveying

bases.
Paper conveying base

Paper
conveying base
Nut plates

4. Raise the release lever of the conveying unit,

open the conveying unit a little, and hang the
hook sections in the front and rear of the
duplex unit on the shaft of the conveying unit. Figure 1-3-103
5. Secure the duplex unit using the four M3 × 10
bronze binding screws.

Duplex unit Shaft

M3 × 10
bronze binding screws Hook Conveying unit

Release lever
M3 × 10
bronze binding screws
Figure 1-3-104
1-3-48
 2DF

6. Insert the 8-pin connector of the duplex unit

into the groove of the housing and pull out the Duplex unit
harness.
7. Connect the 8-pin connector of the duplex
unit to the connector of the copier and Connector
arrange wiring so that the harness is placed
down.

Groove

Hamess
8-pin connector

Figure 1-3-105

8. Insert the removed conveying cover in the

horizontal direction and reattach the front and
rear struts using the screw respectively.
9. Close the conveying cover.

Screws
Conveying
Conveying cover
cover

Struts

Figure 1-3-106

10. Connect the copier power plug to the wall

outlet and turn the copier main switch on.
11. Run maintenance item U034 to adjust the
center line for duplex copying (see page 1-6-
12).

1-3-49
2DF

1-3-14 Installing the built-in finisher (option)

Preparation
Note: When placing the transfer unit on the floor
or the like, be sure to place it upside down. Transfer unit
If not, the stapler mounting plate may be
deformed, resulting in a malfunction.

Figure 1-3-106-1

1. Remove the screw and the pin to remove the

Upper left cover
upper left cover.

Pin

Screw

Figure 1-3-107

2. Open the conveying cover and the front Left front cover
cover.
3. Loosen the two screws on the left side and
the screw on the front side, open the hook on
the right side, and remove the left front cover.

Screws Hook
Screw

Figure 1-3-108

1-3-50
 2DF

4. Close the conveying cover and the front

cover.
5. Remove the two screws and then remove the
Ejection cover
ejection cover with the mounting plate.

Screws

Figure 1-3-109

6. Remove the two screws and then remove the

inner ejection cover.

Inner ejection
cover
Screws

Figure 1-3-110

7. Remove the screw located at the front of the

static charge eliminator of the copier, fit the
flat spring ejection from the lower side, and
secure it with the removed screw. Flat spring ejection

Screw

Figure 1-3-110-1

1-3-51
2DF

8. Remove the blue screw from the transfer unit

and then remove the mounting plate.
9. Remove the securing tape from the 13-pin Transfer unit
connector, pass the wire under the stapler
motor, and connect the wire with the 13-pin Mounting plate
connector.
Blue screw

Securing tape 13-pin

connector

Figure 1-3-110-2

10. Insert the transfer unit into the copier from the
front side and slide it to the left.
Secure the unit using two +TP-A bronze
screws M3 × 05 and the pin that has been
fitted to the transfer unit.
+TP-A bronze screw M3 × 05

Transfer unit

+TP-A bronze screw M3 × 05

Pin

Figure 1-3-111

11. Insert the metal hook of the transfer unit into Metal fittings Hook
+TP-A bronze Oblong hole
the oblong hole of the frame of the copier and
screw M3 × 05
secure it using a +TP-A bronze screw M3 ×
05.
* Insert the projection of the frame into the
hole of the metal hook to position the hook.
* Arrange the cable to position it under the
metal fittings.

Hole
Projection

Cable

Figure 1-3-112

1-3-52
 2DF

12. Remove a screw, turn the metal fittings Metal fittings

upward, and fit the screw again to the lower
hole.

Screw

Screw
Figure 1-3-113

13. Insert the intermediate tray and connect the

connector (white) of the intermediate tray to
the transfer unit. Connect the connectors Connector (white)
(gray) to the connectors of the copier as
shown in the illustration. Intermediate tray
Connect the gray connector with more pins to
the upper connector and the gray connector
with less pins to the lower connector.
Connector (gray)

Figure 1-3-114
14. Attach the intermediate tray to the copier as
shown in the illustration so that the right and
left pins of the intermediate tray are
positioned to the recessed portions of the
copier and the transfer unit. Recessed portion
Pin

Transfer unit Recessed porton

Intermediate tray

Figure 1-3-115
1-3-53
2DF

15. Attach the large ejection cover using the two

screws that have secured the upper left cover. Large ejection
cover

Figure 1-3-116

16. Open the front cover and the conveying +TP-A chrome screw M3 × 05
cover.
17. Attach the staple cover. Staple cover
* Tighten the two screws on the left side to
secure the cover with the copier, secure the
front side using the screw that has been
removed in step 3, and secure the right side
using a +TP-A chrome screw M3 × 05.

Figure 1-3-117

+TP-A chrome screw M3 × 05

18. Close the conveying cover and the front
cover. Attach the front ejection cover and the
rear ejection cover using a +TP-A chrome Front ejection cover
screw M3 × 05 each.

Rear ejection cover

+TP-A chrome screw M3 × 05

Figure 1-3-118
1-3-54
 2DF

19. Attach the copy tray.

Copy tray

Figure 1-3-119

20. Open the staple cover and insert the staple

cartridge into the stapler.
21. Close the staple cover.
Staple cover
22. Insert the power plug of the copier into an
outlet and turn the main switch on.
23. Select the staple mode and make a stapled
copy to check that stapling is performed
properly.

Staple cartridge

Figure 1-3-120

1-3-55
2DF

1-3-15 Installing the job separator (option)

2-pin connector 2-pin connector

Preparation
1. Insert the LED PCB into the job separator
and connect the 2-pin connector of the LED Job separator
PCB into the 2-pin connector of the job
separator.
* Arrange the wire into the two grooves of the
job separator.

Grooves

LED PCB

Figure 1-3-120-1

2. Open the conveying cover and the front

cover. Left front
3. Loosen the two left screws on the left side, cover
remove the screw on the front side, open the
hook on the right side, and remove the left
front cover.
4. Close the conveying cover and the front
cover.

Screws Hook

Screw

Figure 1-3-121

5. Remove the two screws and remove the

ejection cover with the mounting plate. Ejection cover

Screws

Figure 1-3-122

1-3-56
 2DF

6. Remove the two screws and then remove the

inner ejection cover.

Inner ejection
cover
Screws

Figure 1-3-123

7. Insert the job separator into the copier from

the front side and slide it to the left. Secure
the front side using a +TP-A bronze screw M3
× 05 and the rear side using a pin.
* Check to see if the branch pressure lever on
the rear side of the job separator has
lowered.

+TP-A bronze screw Job separator

M3 × 05

Pin

Figure 1-3-124

1-3-57
2DF

8. Connect the connector of the job separator to

the lower connector of the copier.

Connector

Connector of the copier

Figure 1-3-125
9. Attach the job separator tray to the rail of the
job separator by sliding it from the front side.
* Insert the fitting section on the right side of
the job separator tray into the recessed
portion of the copier.
* Put the hook on the right side onto the pin.
10. Open the left transfer cover and the front
cover. Fit the left front cover JS to the location
to which the upper front cover that has been
removed in step 3 was fitted.

Fitting section
Rail
left front
cover JS

Recessed portion

Pin Hook
Job separator
tray

Figure 1-3-126

11. Insert the power plug of the copier into an

outlet and turn the main switch on.
12. Set the “copy ejection location” of the
machine default settings to job separator.
13. Make a test copy to check that a copy is
ejected to the job separator tray.

1-3-58
 2DF

1-3-16 Installing the Network Facsimile System (option)

Procedure
1. Remove 13 screws and take off the rear
cover. Rear cover

Screws

Figure 1-3-127

• If the printing system is installed Printer system

2. Remove the 2 screws holding the printer
system in place, and pull the printing system
out of the shield cover.
Screws

Figure 1-3-128

3. Remove 13 screws and take off the shield Shield cover

cover.

Screws

Figure 1-3-129

1-3-59
2DF

4. Move the film out of the way to the left, and

fasten the fax board into place using four M3 M3 × 06 chrome
× 06 chrome binding screws. Fax board binding screws

Film

Figure 1-3-130

5. Connect the NCU cable to connector CN1 on NCU cable

the NCU board assembly.

CN1

NCU board
assembly

Figure 1-3-131

6. Fasten the NCU board assembly into place NCU board NCU board assembly
from the bottom with two M3 × 06 chrome connector
binding screws.
7. Connect the three connectors from the NCU
board assembly to the corresponding
connectors on the fax board, as follows:
• Speaker 2-pin connector → YC7
• NCU board connector → YC3
• Battery connector → YC6
YC3
YC6
YC7

M3 × 06 chrome
Speaker 2-pin binding screws
connector Battery connector

Figure 1-3-132

1-3-60
 2DF

8. Remove the film that fixes the three positive Optional interface
connectors of the power source PCB from the mounting plate
optional interface mounting plate.
Important: Dispose of the film that has been
removed.
Film

Figure 1-3-133

9. Connect the FAX-PCB-Power cable to FAX-PCB-Power cable

connector CN1 on the auxiliary power source
PCB assembly.

Auxiliary power source

PCB assembly

CN1

CN1

Figure 1-3-134

10. Connect the three positive connectors on the

Green positive Auxiliary power source
power board to the corresponding connectors connector PCB assembly
on the auxiliary power source PCB assembly,
as follows.
• White positive connector → TB1 (white)
• Green positive connector → TB2 (green)
• Small white positive connector → TB3

TB2
TB3

TB1

Small white positive

White positive connector
connector

Figure 1-3-135

1-3-61
2DF

11. Fit the catch on the auxiliary power unit into

the mount hole in the copier, and fasten the
auxiliary power unit into place with one M3 ×
06 chrome binding screw.

M3 × 06 chrome
binding screw

Catch Mount hole

Figure 1-3-136

12. Through the opening of controller-box above Opening

the speaker, connect the FAX-PCB-Power Fax board
cable on the auxiliary power source PCB 2-pin connector with
assembly to connector YC8 on the fax board. green cable
13. Connect the 2-pin connector to the 2-pin 2-pin connector
connector with green cable.

YC8

FAX-PCB-Power
cable

Auxiliary power source

PCB assembly

Figure 1-3-137

14. Unlock YC1 on the fax board by pulling its CN44

connector housing.
15. Hold the fax cable with its conductive side
facing up, insert it into connector YC1, then
CN44
push the housing back in to lock the
connector.
16. Hold the other end of the fax cable with its
conductive side facing down, and connect it
to connector CN44 on the main PCB. (Pull
the CN44 housing out to release the YC1
connector lock, then insert the cable, and
then push the housing back in.)
Important: Be sure to push the fax cable all
the way in, and be sure that the connection is Fax cable
straight. A poor connection may result in a
variety of problems.

Fax board YC1

Figure 1-3-138

1-3-62
 2DF

17. Fasten the shield cover into place with 13

screws. Shield cover

Screws

Figure 1-3-139

18. Remove 1 screw and take off the modular

cover.

Screw

Modular cover

Figure 1-3-140

19. Hang the modular cover onto the holes on the

controller-box cover, and fasten it into place
with 1 screw.

Screw

Holes

Modular cover

Figure 1-3-141

1-3-63
2DF

• If the printing system was installed Printing system

20. Reinstall the printing system into the shield
cover, fastening it into place with 2 screws.

Screws

Figure 1-3-142

21. Reattach the rear cover with 13 screws. Rear cover

Screws

Figure 1-3-143

22. Adhere the certification labels to the rear Certification

cover at the locations indicated in the labels
illustration (only 120 V Spac.).

Figure 1-3-144

1-3-64
 2DF

23. Take the power label from the fax-kit label

sheet, and adhere it to the copier directly
under the main switch.

Main switch

Power label

Figure 1-3-145

24. Take the alphabet labels from the fax-lit label

Management Interrupt
sheet, and adhere them above the Alphabet labels Energy Sever

corresponding numeric keys on the operation ABC DEF

panel. 1 2 3 Reset
• In Asia, use the “PQRS TUV WXYZ” label, JKL MNO

and do not use the “PRS TUV WXZ” and 4 5 6 S Stop/

Clear
“OPER” labels. PQRS TUV WXYZ

7 8 9
OPER

0 Start

Figure 1-3-146

25. Connect the L terminal to the phone circuit

using a modular connector cable.
Important: On 120 V systems, use the
included modular connector cable to make
the connection.
26. After installation is complete, the fax board
must be initialized (see the P.1-3-42). L terminal

L
Modular connector
cable

Figure 1-3-147

1-3-65
 2DF

1-4-1 Maintenance mode

The copier is equipped with a maintenance function which can be used to maintain and service the machine.

(1) Executing a maintenance item

Start

Enter “10871087” using

Maintenance mode is entered.
the numeric keys.

Enter the maintenance item

number using the cursor up/down keys
The maintenance item is
or numeric keys.
selected.

Press the start key.

The selected maintenance item is run.

Press the stop/clear key.

Yes Repeat the same

maintenance item?

No

Yes
Run another maintenance
item?

No

Enter “001” using the cursor

up/down keys or numeric keys Maintenance mode is exited.
and press the start key.

End

1-4-1
2DF

(2) Maintenance mode item list

Item Initial
Section Maintenance item contents
No. setting*
General U000 Outputting an own-status report —
U001 Exiting the maintenance mode —
U003 Setting the service telephone number ***************
U004 Setting the machine number 000000
U005 Copying without paper —
U019 Displaying the ROM version —
Initialization U020 Initializing all data —
U021 Initializing counters and mode settings —
U022 Initializing data for optical system —
Drive, paper U030 Checking motor operation —
feed, paper U031 Checking switches for paper conveying —
conveying and
U032 Checking clutch operation —
cooling system
U033 Checking solenoid operation —
U034 Adjusting the print start timing
• Adjusting the leading edge registration 0.5/0/-0.1
• Adjusting the center line 7.2/0
U035 Setting folio size
• Length/Width 330
• Width 210
U038 Checking the copier cover switch —
U051 Adjusting the amount of slack in the paper
• Regist data 0/0/0
• Feed data 110/20/0/0/0/0
U053 Performing fine adjustment of the motor speed
• Drive motor 7
• Eject motor 9
• Polygon motor 0
Optical U060 Adjusting the scanner input properties 11
U061 Turning the exposure lamp on —
U063 Adjusting the shading position 0
U065 Adjusting the scanner magnification
• Main scanning direction/auxiliary scanning direction 0/-2
U066 Adjusting the leading edge registration for scanning an original on the 7/0
contact glass
U067 Adjusting the center line for scanning an original on the contact glass -18/0
U068 Adjusting the scanning position for originals from the DF 0
U070 Adjusting the DF magnification -3
U071 Adjusting the DF scanning timing
• DF leading edge registration/DF trailing edge registration 8/0
U072 Adjusting the DF center line 15
U073 Checking scanner operation —
U074 Adjusting the DF input light luminosity 1
U087 Turning the DF scanning position adjust mode on/off On
U088 Setting the input filter (moiré reduction mode) Off
U089 Outputting a MIP-PG pattern —
U091 Checking shading —
U092 Adjusting the scanner automatically —
U093 Setting the exposure density gradient
• Text and photo/text/photo/text in fax/photo in fax mode 0/0/0/2/3
U099 Checking and setting the original size detection sensor —
* Initial setting for executing maintenance item U020
1-4-2
 2DF

Item Initial
Section Maintenance item contents
No. setting*
High voltage U100 Checking the operation of main high voltage 184
U101 Setting high voltages
• Developing bias AC component frequency at image formation 0
• Developing bias AC component duty at image formation 0
• Developing shift bias potential at image formation 0
• Transfer control voltage 120
U109 Drum type display —
U110 Checking/clearing the drum count —
U112 Setting toner refresh operation
• Time of toner refreshment/Developing bias on time 120/700
U113 Operating the drum refreshment —
Developing U130 Initial setting for the developer —
U144 Setting toner loading operation MODE2
U150 Checking sensors and switches for toner —
U157 Checking/clearing the developing drive time —
U158 Checking/clearing the developing count —
Fixing and U161 Setting the fixing control temperature
cleaning • Control temperature during copying 165
• Primary stabilization fixing temperature 110
• Secondary stabilization fixing temperature 110
• OFF time of fixing heater M 12
U162 Stabilizing fixing forcibly —
U163 Resetting the fixing problem data —
U165 Checking/clearing fixing counts —
U196 Turning the fixing heater on —
U199 Checking the fixing temperature —
Operation U200 Turning all LEDs on —
panel and U201 Initializing the touch panel —
support U202 Setting the KMAS host monitoring system —
equipmen
U203 Operating DF separately —
U204 Setting the presence or absence of a key card or key counter —
U206 Setting the presence or absence of the coin vender —
U207 Checking the operation panel keys —
U208 Setting the paper size for the large paper deck A4
U211 Setting DF type —
U217 Setting 81/2" × 13" paper —
U236 Setting the limit for the ejection section of the built-in finisher —
U237 Setting finisher stack quantity —
U243 Checking the operation of the DF motors, solenoids and clutch —
U244 Checking the DF switches —
U245 Checking messages —
U246 Setting the finisher
• Amount of slack in the paper 0
• Booklet stapling position adjustment 0
• Side registration cursor stop position 0
U247 Checking the operation of large paper deck and paper feed desk —
U249 Checking the paper ejection to optional devices —
Mode setting U250 Setting the maintenance cycle 500000 (35/40 cpm)
400000 (25 cpm)
U251 Checking/clearing the maintenance count —
U252 Setting the destination Japan

* Initial setting for executing maintenance item U020

1-4-3
2DF

Item Initial
Section Maintenance item contents
No. setting*
Mode setting U253 Switching between double and single counts Double count
U254 Turning auto start function on/off On
U255 Setting auto clear time 90
U256 Turning auto preheat/energy saver function on/off On
U258 Switching copy operation at toner empty detection Single mode,
70
U260 Changing the copy count timing After ejection
U264 Setting the display order of the date Inch
specifications:
MONTH-DATE-YEAR
Metric
specifications:
DATE-MONTH-YEAR
U265 Setting OEM purchaser code —
U274 Setting the laser scanner unit type 0
U329 Default setting Auto rotation copy/Sort copy On/On
U330 Setting the number of sheets to enter stacking mode during sort operation —
U331 Switching the finisher eject section OFF
U332 Setting the size conversion factor —
U341 Specific paper feed location setting for printing function —
U342 Setting the ejection restriction On
U343 Switching between duplex/simplex copy mode Off
U344 Setting preheat/energy saver mode ENERGY STAR
U345 Setting the value for maintenance due indication —
U346 Setting the sleep mode operation MODE0
Image U402 Adjusting margins of image printing —
processing U403 Adjusting margins for scanning an original on the contact glass —
U404 Adjusting margins for scanning an original from the DF —
U407 Adjusting the leading edge registration for memory image printing 0
U500 Setting the limit on data size for e-mail transmission LITTLE
U501 Setting image area ON
U504 Initializing the scanner NIC —
U505 Setting Data Base Assistant On
U540 Adjusting the auxiliary scanning magnification 0
Others U901 Checking/clearing copy counts by paper feed locations —
U902 Checking/clearing finisher punch count 20000
U903 Checking/clearing the paper jam counts —
U904 Checking/clearing the service call counts —
U905 Checking/clearing counts by optional devices —
U906 Resetting partial operation control —
U908 Changing the total counter value —
U910 Clearing the black ratio data —
U911 Checking/clearing copy counts by paper sizes —
U937 Model name setting **30
U960 Outputting the machine used circumstances list —
U968 Shading plate switching setting —
U990 Checking/clearing the time for the exposure lamp to light —
U991 Checking/clearing the scanner count —
U992 Checking or clearing the printer/fax count —
U993 Outputting a VTC-PG pattern —
* Initial setting for executing maintenance item U020
1-4-4
 2DF

(3) Contents of maintenance mode items

Maintenance
Description
item No.
U000 Outputting an own-status report
Description
Outputs lists of the current settings of the maintenance items, and paper jam and service call occurrences.
Purpose
To check the current setting of the maintenance items, or paper jam or service call occurrences.
Before initializing or replacing the backup RAM, output a list of the current settings of the maintenance items to
reenter the settings after initialization or replacement.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the item to be output. The selected item is displayed in reverse.
Display Output list
MAINTENANCE List of the current settings of the maintenance modes
JAM List of the paper jam occurrences
SERVICE CALL List of the service call occurrences
3. Press the start key. The interrupt copy mode is entered and a list is output.
When A4/11" × 81/2" paper is available, a report of this size is output. If not, specify the paper feed location.
When output is complete, the screen for selecting an item is displayed.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.

U001 Exiting the maintenance mode

Description
Exits the maintenance mode and returns to the normal copy mode.
Purpose
To exit the maintenance mode.
Method
Press the start key. The normal copy mode is entered.

1-4-5
2DF

Maintenance
Description
item No.
U003 Setting the service telephone number
Description
Sets the telephone number to be displayed when a service call code is detected.
Purpose
To set the telephone number to call service when installing the machine.
Method
Press the start key. The currently set telephone number is displayed.
Setting
1. Enter a telephone number (up to 15 digits) using the numeric keys.
• To enter symbols such as hyphens and parentheses, select as required from the symbols displayed on
the touch panel as shown below. To move the cursor, press LEFT or RIGHT in the bottom row.

* #
( )
- (Space)
LEFT RIGHT
2. Press the start key. The phone number is set, and the screen for selecting a maintenance item No. is
displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.
U004 Setting the machine number
Description
Displays and changes the machine number.
Purpose
To check or set the machine number.
Method
Press the start key. The currently set machine number is displayed.
Setting
1. Enter the last six digits of the machine number using the numeric key.
Do not enter the first two digits, 3 and 7.
2. Press the start key. The machine number is set, and the screen for selecting a maintenance item No. is
displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.

1-4-6
 2DF

Maintenance
Description
item No.
U005 Copying without paper
Description
Simulates the copy operation without paper feed.
Purpose
To check the overall operation of the machine.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the item to be operated. The selected item is displayed in reverse.
Display Operation
PPC Only the copier operates.
PPC + DF Both the copier and DF operate (continuous operation).
3. Press the interrupt key. The copy mode screen is displayed.
4. Set the operation conditions required on the copy mode screen. Changes in the following settings can be
made.
• Paper feed locations
• Magnifications
• Simplex or duplex copy mode
• Number of copies: in simplex copy mode, continuous copying is performed when set to 999; in duplex
copy mode, continuous copying is performed regardless of the setting.
• Copy density
• Keys on the operation panel other than the energy saver (preheat) key
5. To control the paper feed pulley, remove all the paper in the drawers, or the drawers. With the paper
present, the paper feed pulley does not operate.
6. Press the start key. The operation starts.
Copy operation is simulated without paper under the set conditions. When operation is complete, the
screen for selecting an item is displayed.
7. To stop continuous operation, press the stop/clear key.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.
U019 Displaying the ROM version
Description
Displays the part number of the ROM fitted to each PCB.
Purpose
To check the part number or to decide if the ROM version is new from the last digit of the number.
Method
Press the start key. The last eight digits of the part number indicating the ROM version are displayed.
Display Description
MAIN Main ROM IC
MMI Operation ROM IC
LANGUAGE(Stand.) Standard language ROM IC
LANGUAGE(Option) Optional language ROM IC
MAIN BOOT Boot of main ROM IC
MMI BOOT Boot of operation ROM IC
NETWORK SCANNER Network scanner ROM IC

Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.

1-4-7
2DF

Maintenance
Description
item No.
U020 Initializing all data
Description
Initializes all the backup RAM on the main PCB to return to the original settings.
Purpose
Used when replacing the backup RAM on the main PCB.
Method
1. Press the start key. The screen for executing is displayed.
2. Press EXECUTE on the touch panel. It is displayed in reverse.
3. Press the start key. All data in the backup RAM is initialized, and the original settings for Japan
specifications are set.
When initialization is complete, the machine automatically returns to the same status as when the main
switch is turned on and the display language to the initial setting of English.
Completion
To exit this maintenance item without executing initialization, press the stop/clear key. The screen for selecting
a maintenance item No. is displayed.
U021 Initializing counters and mode settings
Description
Initializes the setting data other than that for adjustments due to variations between respective machines, i.e.,
settings for counters, service call history and mode settings. As a result, initializes the backup RAM according
to the specifications depending on the destination selected in U252.
Purpose
Used to return the machine settings to the factory settings.
Method
1. Press the start key. The screen for executing is displayed.
2. Press EXECUTE on the touch panel. It is displayed in reverse.
3. Press the start key. All data other than that for adjustments due to variations between machines is
initialized based on the destination setting.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
U022 Initializing data for optical system
Description
Initializes only the data set for the optical section.
Purpose
To be executed after replacing the scanner unit.
Method
1. Press the start key. The screen for executing is displayed.
2. Press SCANNER on the touch panel.
3. Press EXECUTE on the touch panel. It is displayed in reverse.
4. Press the start key. The data for the optical section (U060 to 067, U088 to 099, U403, U990 and U991) is
initialized.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.

1-4-8
 2DF

Maintenance
Description
item No.
U030 Checking motor operation
Description
Drives each motor.
Purpose
To check the operation of each motor.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the motor to be operated. The selected item is displayed in reverse and the operation starts.
Display Operation
FEED Paper feed motor operates
MAIN Drive motor operates
EJECT(FW) Eject motor rotates forward
EJECT(REV) Eject motor rotates in reverse
3. To stop operation, press the stop/clear key.
Completion
Press the stop key after operation stops. The screen for selecting a maintenance item No. is displayed.
U031 Checking switches for paper conveying
Description
Displays the on-off status of each paper detection switch on the paper path.
Purpose
To check if the switches for paper conveying operate correctly.
Method
1. Press the start key. A list of the switches, the on-off status of which can be checked, are displayed.
2. Turn each switch on and off manually to check the status.
When the on-status of a switch is detected, that switch is displayed in reverse.
Display Switches
F1 Feed switch 1 (FSW1)
F2 Feed switch 2 (FSW2)
F3 Feed switch 3 (FSW3)
BYP Bypass feed switch (BYPFSW)
RES Registration switch (RSW)
EJE Eject switch (ESW)
BRA Feedshift switch (FSSW)
DUP Duplex paper conveying switch (DUPPCSW)*
JOB Job separator eject switch (JBESW)*
*Optional.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.

1-4-9
2DF

Maintenance
Description
item No.
U032 Checking clutch operation
Description
Turns each clutch on.
Purpose
To check the operation of each clutch.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the clutch to be operated. The selected item is displayed in reverse, and the clutch turns on for 1 s.
Display Clutches
PF1 Upper paper feed clutch (PFCL-U)
PF2 Lower paper feed clutch (PFCL-U)
PFBYP Bypass paper feed clutch (BYPPFCL)
FEED1 Feed clutch 1 (FCL1)
FEED2 Feed clutch 2 (FCL2)
FEED3 Feed clutch 3 (FCL3)
BYPF Bypass feed clutch (BYPFCL)
RES Registration clutch (RCL)
DUPF Duplex feed clutch (DUPFCL)*
*Optinal.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
U033 Checking solenoid operation
Description
Turns each solenoid on.
Purpose
To check the operation of each solenoid.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the solenoid to be operated. The selected item is displayed in reverse, and the solenoid turns on for
1 s.
Display Solenoids
TONER SOL Toner feed solenoid (TNFSOL)
BRANCH1 SOL Feedshift solenoid (FSSOL)
BRANCH2 SOL Feedshift solenoid (FSSOL)*
MAIN SW SOL Main switch turns on
*Optional.
Select MAIN SW SOL to check the operation of the main switch in auto shut off.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
U034 Adjusting the print start timing
Adjustment
See pages 1-6-10 and 12.

1-4-10
 2DF

Maintenance
Description
item No.
U035 Setting folio size
Description
Changes the image area for copying onto folio size paper.
Purpose
To prevent the image at the trailing edge, or right or left side of the paper from not being copied by setting the
actual size of the folio paper used.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select the item to be set. The selected item is displayed in reverse.
2. Change the setting using the cursor up/down keys.
Display Setting Setting range Initial setting
LENGTH DATA Length 330 to 356 mm 330
WIDTH DATA Width 200 to 220 mm 210
3. Press the start key. The value is set.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
U038 Checking the copier cover switch
Description
Displays the on-off status of each cover switch.
Purpose
To check if the switches of covers operate correctly.
Method
1. Press the start key. A list of the switches, the on-off status of which can be checked, are displayed.
2. Open and close each cover to check the status of each switch.
When the cover is closed, the switch shall be displayed in reverse. When the cover is open, the switch shall
be displayed normally.
Display Switches
INTER LOCK SW Safty switch 1 and 2 (SSW1 and 2)
FRONT COVER Front cover switch (FRCSW)
LEFT1 COVER Conveying cover switch (CCSW)
LEFT2 COVER Side cover switch (SCSW)
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
U051 Adjusting the amount of slack in the paper
Adjustment
See page 1-6-14.

1-4-11
2DF

Maintenance
Description
item No.
U053 Performing fine adjustment of the motor speed
Description
Performs fine adjustment of the speeds of the motors.
Purpose
Used to adjust the speed of the respective motors when the magnification is not correct.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select the item to be set. The selected item is displayed in reverse.
2. Change the setting using the cursor up/down keys.
Display Description Setting range Initial setting
MAIN MOTOR Drive motor speed adjustment 0 to +14 7
EJECT MOTOR Eject motor speed adjustment 0 to +14 9
POLYGON MOTOR Polygon motor speed adjustment -20 to +20 0
MAIN MOTOR /EJECT MOTOR
Increasing the setting makes the image longer in the auxiliary scanning direction, and decreasing it makes
the image shorter in the auxiliary scanning direction.
POLYGON MOTOR
Increasing the setting makes the image longer in the main scanning direction and shorter in the auxiliary
scanning direction; decreasing the setting makes the image shorter in the main scanning direction and
longer in the auxiliary scanning direction.
EJECT MOTOR
Normally no change is necessary but this can be used as countermeasures against wrinkles (waving) of
paper.
3. Press the start key. The value is set.
Interrupt copy mode
While this maintenance item is being performed, a VTC pattern shown below is output in interrupt copy mode.
Correct values for an A3/11" × 17" output are:
A = 300 ± 1.5 mm
B = 260 ± 1.0 mm

Figure 1-4-1

Adjustment
1. Output an A3/11" × 17" VTC pattern in interrupt mode.
2. Measure A and B on the VTC pattern (Figure 1-4-1), and perform the following adjustments if they are
different from the correct sizes:
A: Drive motor speed adjustment
B: Polygon motor speed adjustment
Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.

1-4-12
 2DF

Maintenance
Description
item No.
U060 Adjusting the scanner input properties
Description
Adjusts the image scanning density in text, text and photo, or photo mode.
Purpose
Used when the entire image appears too dark or light.
Method
Press the start key. The screen for executing is displayed.
Setting
1. Change the setting using the cursor up/down keys.
Descrition Setting range Initial setting
Image scannnig density 0 to +24 11
Increasing the setting makes the density lower, and decreasing it makes the density higher.
2. Press the start key. The value is set.
Interrupt copy mode
While this maintenance item is being performed, copying from an original can be made in interrupt copy mode.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.
Caution
The following settings are also reset to the initial values by performing this maintenance item:
• Exposure density gradient set in maintenance mode (U093)
• Exposure set in the copy default item of the copier management mode
U061 Turning the exposure lamp on
Description
Turns the exposure lamp on.
Purpose
To check the exposure lamp.
Method
1. Press the start key. The screen for executing is displayed.
2. Press the start key. The exposure lamp lights.
3. To turn the exposure lamp off, press the stop/clear key.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.

1-4-13
2DF

Maintenance
Description
item No.
U063 Adjusting the shading position
Description
Changes the shading position.
Purpose
Used when white lines continue to appear longitudinally on the image after the shading plate is cleaned. This is
due to flaws or stains inside the shading plate. To prevent this problem, the shading position should be changed
so that shading is possible without being affected by the flaws or stains.
Method
1. Press the start key. The screen for adjustment is displayed.
2. Change the setting using the cursor up/down keys.
Description Setting range Initial setting Change in value per step
Shading position –5 to +5 0 0.17 mm
Increasing the setting moves the shading position toward the machine right, and decreasing it moves the
position toward the machine left.
3. Press the start key. The value is set.
Interrupt copy mode
While this maintenance item is being performed, copying from an original can be made in interrupt copy mode.
Completion
Press the stop/clear key at the screen for adjustment. The screen for selecting a maintenance item No. is
displayed.
U065 Adjusting the scanner magnification
Adjustment
See pages 1-6-27 and 28.
U066 Adjusting the leading edge registration for scanning an original on the contact glass
Adjustment
See page 1-6-29.
U067 Adjusting the center line for scanning an original on the contact glass
Adjustment
See page 1-6-30.
U068 Adjusting the scanning position for originals from the DF
Description
Adjusts the position for scanning originals from the DF.
Purpose
Used when there is a regular error between the leading edges of the original and the copy image when the DF
is used.
Method
Press the start key. The screen for executing is displayed.
Setting
1. Change the setting using the cursor up/down keys.
Description Setting range Initial setting Change in value per step
Scanning position –2 to +3 0 0.254 mm
Increasing the setting moves the image backward, and decreasing it moves the image forward.
2. Press the start key. The value is set.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.

1-4-14
 2DF

Maintenance
Description
item No.
U070 Adjusting the DF magnification
Description
Adjusts the DF original scanning speed.
Purpose
To be executed if the correct magnification is not obtained in the auxiliary scanning direction when the optional
DF is used.
Caution
Before making this adjustment, ensure that the following adjustments have been made in maintenance mode.
U053 U065 U070

Method
Press the start key. The screen for executing is displayed.
Setting
1. Change the setting using the cursor up/down keys.
Description Setting range Initial setting Change in value per step
Original conveying motor speed –25 to +25 –3 0.1%
Increasing the setting makes the image longer, and decreasing it makes the image shorter.
2. Press the start key. The value is set.
Interrupt copy mode
While this maintenance item is being performed, copying from an original can be made in interrupt copy mode.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.

1-4-15
2DF

Maintenance
Description
item No.
U071 Adjusting the DF scanning timing
Description
Adjusts the DF original scanning timing.
Purpose
To be executed if there is a regular error between the leading or trailing edges of the original and the copy
image when the optional DF is used.
Caution
Before making this adjustment, ensure that the following adjustments have been made in maintenance mode.
U034 U066 U071

Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select the item to be set. The selected item is displayed in reverse.
2. Change the setting using the cursor up/down keys.
Change in
Display Description Setting range Initial setting value per step

LEAD EDGE ADJ DF leading edge registration –20 to +20 8 0.17 mm

TRAIL EDGE ADJ DF trailing edge registration –10 to +10 0 0.17 mm
Increasing the setting moves the copy image backward, and decreasing it moves the copy image forward.
3. Press the start key. The value is set.
Interrupt copy mode
While this maintenance item is being performed, copying from an original can be made in interrupt copy mode.
Adjustment
1. In interrupt copy mode, make a copy using the DF.
2. Check the copy image and adjust the registration as follows.
For copy example 1, increase the setting of LEAD EDGE ADJ.
For copy example 2, decrease the setting of LEAD EDGE ADJ.

Original Copy Copy

example 1 example 2

Figure 1-4-2

Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.

1-4-16
 2DF

Maintenance
Description
item No.
U072 Adjusting the DF center line
Description
Adjusts the scanning start position for the DF original.
Purpose
To be executed if there is a regular error between the centers of the original and the copy image when the
optional DF is used.
Caution
Before making this adjustment, ensure that the following adjustments have been made in maintenance mode.
U034 U067 U072

Method
Press the start key. The screen for executing is displayed.
Setting
1. Change the setting using the cursor up/down keys.
Description Setting range Initial setting Change in value per step
DF center line –39 to +39 15 0.17 mm
Increasing the setting moves the image to the right, and decreasing it moves the image to the left.
2. Press the start key. The value is set.
Interrupt copy mode
While this maintenance item is being performed, copying from an original can be made in interrupt copy mode.
Adjustment
1. In interrupt copy mode, make a copy using the DF.
2. Check the copy image and adjust the center line as follows.
For copy example 1, increase the setting.
For copy example 2, decrease the setting.

Reference

Original Copy Copy

example 1 example 2

Figure 1-4-3

Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.

1-4-17
2DF

Maintenance
Description
item No.
U073 Checking scanner operation
Description
Simulates the scanner operation under arbitrary conditions.
Purpose
To check scanner operation.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the item to be changed. The selected item is displayed in reverse.
3. Change the setting using the cursor up/down keys.
Display Operating conditions Setting range
ZOOM Magnification 100 to 400%
SIZE Original size See below.
LAMP On and off of the exposure lamp 0 (off) or 1 (on)
Original sizes for each setting in SIZE
Setting Paper size Setting Paper size
8 A4 42 A5R
9 B5 47 Folio
24 11" × 81/2" 52 11" × 17"
36 A3 53 11" × 15"
39 B4 55 81/2" × 14"
40 A4R 56 81/2" × 11"
41 B5R 58 51/2" × 81/2"
4. Press the strat key. The setting is set.
5. Press the interrupt key. The copy mode screen is displayed.
6. Press the start key. Scanning starts under the selected conditions.
7. To stop operation, press the stop/clear key.
Completion
Press the stop/clear key when scanning stops. The screen for selecting a maintenance item No. is displayed.
U074 Adjusting the DF input light luminosity
Description
Adjusts the luminosity of the exposure lamp for scanning originals from the optional DF.
Purpose
Used if the exposure amount differs significantly between when scanning an original on the contact glass and
when scanning an original from the DF.
Method
Press the start key. The screen for executing is displayed.
Setting
1. Change the setting using the cursor up/down keys.
Description Setting range Initial setting
DF input light luminosity 0 to 8 1
Increasing the setting makes the luminosity higher, and decreasing it makes the luminosity lower.
2. Press the start key. The value is set.
Interrupt copy mode
While this maintenance item is being performed, copying from an original can be made in interrupt copy mode.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.

1-4-18
 2DF

Maintenance
Description
item No.
U087 Turning the DF scanning position adjust mode on/off
Description
Turns on or off the DF scanning position adjust mode, in which the DF original scanning position is adjusted
automatically by determining the presence or absence of dust on the slit glass. Also changes the reference
data for identifying dust.
Reference
In the DF original scanning position adjust mode, the presence or absence of dust is determined by comparing
the scan data of the original trailing edge and that taken after the original is conveyed past the DF original
scanning position. If dust is identified, the DF original scanning position is adjusted for the following originals.
Purpose
Used to prevent appearance of black lines due to dust adhering in the original scanning position on the slit
glass when the DF is used.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the item to be set and press the start key.
Display Description
ON/OFF Setting the mode on/off
DATA Setting the reference data for identifying dust

Setting the mode on/off

1. Select ON or OFF. The selected item is displayed in reverse.
Display Description
ON DF scanning position adjust mode on
OFF DF scanning position adjust mode off
Initial setting: ON
2. Press the start key. The setting is set. The screen for selecting an item is displayed.
Setting the reference data for identifying dust
Available only when the mode is turned on.
1.Change the setting using the cursor up/down keys.
Description Setting range Initial setting
Minimum density to be regarded as dust 10 to 95 35
Example
The figure indicates the density in 256 levels of gray (0: white, 255: black). When the setting is 35, data of
the level of 35 or higher is regarded as dust and data of lower level is regarded as the background (scan
data taken when there is no original).
2. Press the start key. The value is set.
3. To return to the screen for selecting an item, press the stop/clear key.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.

1-4-19
2DF

Maintenance
Description
item No.
U088 Setting the input filter (moiré reduction mode)
Description
Turns moiré reduction mode on and off by switching the input filter on and off.
Purpose
Used to prevent regular density unevenness (moiré) on halftone image areas of the copy image in text mode
and text and photo mode. Such moiré is more likely to appear when an enlargement or reduction copy is made
in text mode from an original containing large halftone image areas.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select ON or OFF. The selected item is displayed in reverse.
Display Description
ON Moiré reduction mode
OFF Normal copy mode
Initial setting: OFF
If moiré on the copy image is significant, change the setting to ON. Note that when the moiré reduction
mode is turned on, the resolution may be slightly reduced.
2. Press the start key. The value is set. The screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.
U089 Outputting a MIP-PG pattern
Description
Selects and outputs the MIP-PG pattern created in the copier.
Purpose
When performing respective image printing adjustments, used to check the machine status apart from that of
the scanner with a non-scanned output MIP-PG pattern.
Method
1. Press the start key.
2. Select the MIP-PG pattern to be output.
Display Description Adjusting range
GRAYSCALE Gray scale –
MONO-LEVEL Mono level 0 to 255
256-LEVEL 256 level –
1dot-LINE 1 dot level –
3. Press the interrupt key to set the pattern output mode.
4. Press the start key. A MIP-PG pattern is output.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.

1-4-20
 2DF

Maintenance
Description
item No.
U091 Checking shading
Description
Performs scanning under the same conditions as before and after shading is performed, displaying the original
scanning values at nine points of the contact glass.
Purpose
To check the change in original scanning values before and after shading. The results may be used to decide
the causes for fixing unevenness (uneven density) of the gray area of an image: either due to optical (shading
or CCD) or other problems.
Also to check the causes for a white or black line appearing longitudinally.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the item to be operated. The selected item is displayed in reverse.
Display Description
SHD BEFORE Performs scanning before shading and displays the result.
SHD AFTER Performs scanning after shading and displays the result.
3. Press the start key. Scanning is performed under the selected conditions and the result is displayed.
When scanning is performed before shading, the scan value at the machine center should be slightly
different from those at the machine front and rear. When scanning is performed after shading, there should
be no difference between respective values. Any differences between the values at machine front and rear
indicates that scanner problem causes the fixing unevenness.
If the displayed results indicate no shading problems, the fixing unevenness (uneven copy density) is
caused by factors other than in the scanner section (shading or CCD).
If a black line appears, the cause may assumed to be based on the results of the scanning operation before
shading: if a white line appears, they may be assumed based on the results of the scanning operation after
shading. Note that depending on the thickness and location of the black or white line, it may not be possible
to use this method to determine the cause. This is because the displayed values obtained from scanning at
the limit of nine points are insufficient to provide significant information.

20 mm from the machine left

200 mm from the machine left
400 mm from the machine left

100 mm from the Machine center 100 mm from the

machine center machine center
toward machine toward machine
front rear

Figure 1-4-4

4. To return to the screen for selecting an item, press the stop/clear key.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for entering a maintenance item is
displayed.

1-4-21
2DF

Maintenance
Description
item No.
U092 Adjusting the scanner automatically
Description
Makes auto scanner adjustments in the order below using the specified original.
• Adjusting the scanner center line (U067)
• Adjusting the scanner leading edge registration (U066)
• Adjusting scanner magnification in the auxiliary direction (U065)
When this maintenance item is performed, the settings in U065, U066 and U067 are also changed.
Purpose
Used to make respective auto adjustments for the scanner.
Method
1. Place the specified original (P/N: 2A068020) on the contact glass.
2. Press the start key. The screen for executing is displayed.
3. Press the start key. Auto adjustment starts. When adjustment is complete, each adjusted value is
displayed.
Display Description
SCAN CENTER Scanner center line
SCAN TIMING Scanner leading edge registration
SUB SCAN Scanner magnification in the auxiliary scanning direction
If a problem occurs during auto adjustment, DATA: XX (XX is replaced by an error code) is displayed and
operation stops. Should this happen, determine the details of the problem and either repeat the procedure
from the beginning, or adjust the remaining items manually by running the corresponding maintenance
items.
Completion
Press the stop/clear key after auto adjustment is complete. The screen for selecting a maintenance item No. is
displayed.
If the stop/clear key is pressed during auto adjustment, adjustment stops and no settings are changed.

1-4-22
 2DF

Maintenance
Description
item No.
U093 Setting the exposure density gradient
Description
Changes the exposure density gradient in manual density mode, depending on respective image modes (text,
text and photo, photo, text in fax mode, photo in fax mode).
Purpose
To set how the image density is altered by a change of one step in the manual density adjustment. Also used to
make copy image darker or lighter.
Start
1. Press the start key. The screen for selecting an item is displayed.
2. Select the image mode to be adjusted and press the start key. The screen for the selected item is
displayed.
Display Description
MIXED Density in text and photo mode
TEXT Density in text mode
PHOTO Density in photo mode
FAX TEXT Density in the text in fax mode
FAX PHOTO Density in the photo in fax mode

Setting
1. Select the item to be adjusted. The selected item is displayed in reverse.
Display Description
DARKER Change in density when manual density is set dark
LIGHTER Change in density when manual density is set light
2. Adjust the setting using the cursor up/down keys.
Display Setting range Initial setting
MIXED DARKER/MIXED LIGHTER 0 to 3/0 to 3 0/0
TEXT DARKER/TEXT LIGHTER 0 to 3/0 to 3 0/0
PHOTO DARKER/PHOTO LIGHTER 0 to 3/0 to 3 0/0
FAX TEXT DARKER/FAX TEXT LIGHTER 0 to 4/0 to 9 2/2
FAX PHOTO DARKER/FAX PHOTO LIGHTER 0 to 6/0 to 6 3/3
Increasing the setting makes the change in density larger, and decreasing it makes the change smaller.

Image density Setting: 0

Setting: 3
Dark
Set to LIGHTER

Set to DARKER

Light
Density adjustment
Light Center Dark

Figure 1-4-5 Exposure density gradient

3. Press the start key. The value is set.

4. To return to the screen for selecting an item, press the stop/clear key.
Interrupt copy mode
While this maintenance item is being performed, copying from an original can be made in interrupt copy mode.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.

1-4-23
2DF

Maintenance
Description
item No.
U099 Checking and setting the original size detection sensor
Description
Checks the operation of the original size detection sensor and sets the sensing threshold value.
Purpose
To adjust the sensitiveness of the sensor and size judgement time if the original size detection sensor
malfunctions frequently due to incident light or the like.
Start
1. Press the start key. The screen for selecting an item is displayed.
2. Select an item and press the start key. The screen for executing each item is displayed.
Display Description
DATA Displaying detection sensor transmission data
B/W LEVEL Setting detection sensor threshold value
Setting original size judgment time

Method to display the data for the sensor

1. Press the start key. The detection sensor transmission data is displayed.

Rear of machine : 123 123 123

Center of machine : 123 123 123
Front of machine : 255 255 255

Figure 1-4-6

2. To return to the screen for selecting an item, press the stop/clear key.
Setting
1. Select an item to be set.
Display Description Setting range Initial setting
LEVEL Detection sensor threshold value 0 to 255 170
WAIT TIME Original size judgment time* 0 to 100 50
ORIG. AREA Original size detection position display (mm) 0 to 350 –
SIZE Detected original size display 0 to 63 –
* Time from activation of the original detection switch (ODSW) to original size judgment
Method to set the detection threshold value
1. Adjust the preset value using the cursor up/down keys.
* A larger value increases the sensor sensitivity, and a smaller value decreases it.
2. Press the start key. The value is set.
3. To return to the screen for selecting an item, press the stop/clear key.
Method to set the original size judgment time
1. Adjust the preset value using the cursor up/down keys.
* A larger value increases the original size judgment time, and a smaller value decreases it.
2. Press the start key. The value is set.
3. To return to the screen for selecting an item, press the stop/clear key.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for maintenance item No. is displayed.

1-4-24
 2DF

Maintenance
Description
item No.
U100 Checking the operation of main high voltage
Description
Performs main charging.
Purpose
To check main charging.
Start
Press the start key. The screen for selecting an item is displayed.
Display Description
MC ON Turning the main charger on
ON TIME(SEC) Turning the main charger on and the laser scanner unit on and off

Method
1. Select the item to be operated.
2. Press the start key. The selected operation starts.
3. To stop operation, press the stop/clear key.
Completion
Press the stop/clear key at the screen for selecting an item when main charger output stops. The screen for
selecting a maintenance item No. is displayed.
U101 Setting high voltages
Description
Changes the developing bias voltage and transfer voltage by changing the developing bias control voltage and
transfer control voltage.
Purpose
To check the developing bias and the transfer voltage or to take measures against drop of image density or
background fog.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select the item to be set. The selected item is displayed in reverse.
2. Change the setting using the cursor up/down keys.
Display Description Setting range Initial setting
DEV BIAS Developing bias AC component frequency -255 to 255 0
at image formation
DEV DUTY Developing bias AC component duty -100 to 100 0
at image formation
DEV SBIAS Developing shift bias potential -1 to 1 0
at image formation
TC DATA Transfer control voltage 0 to 255 120
Increasing the DEV BIAS setting makes the image lighter; decreasing it makes the image darker.
Increasing the DEV DUTY setting makes the image lighter; decreasing it makes the image darker.
Increasing the DEV SBIAS setting makes the image darker; decreasing it makes the image lighter.
Increasing the TC DATA setting makes the transfer voltage higher, and decreasing it makes the voltage
lower.
3. Press the start key. The value is set.
Interrupt copy mode
While this maintenance item is being performed, copying from an original can be made in interrupt copy mode.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.

1-4-25
2DF

Maintenance
Description
item No.
U109 Drum type display
Description
Displays the drum surface potential set as EEPROM of the drum unit.
Purpose
To check the drum surface potential.
Method
Press the start key.
* Drum surface potential (V) is displayed.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
U110 Checking/clearing the drum count
Description
Displays the drum counts for checking, clearing or changing the figure, which is used as a reference when
correcting the main charger potential output.
Purpose
To check the drum status. Also used to clear the count after replacing the drum during regular maintenance.
Since the count was cleared before shipping, do not clear it when installing.
Method
Press the start key. The drum counter count is displayed.
Clearing
1. Press the reset key.
2. Press the start key. The count is cleared, and the screen for selecting a maintenance item No. is displayed.
Setting
1. Enter a six-digit count using the numeric keys.
2. Press the start key. The count is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit the maintenance mode without changing the count, press the stop/clear key. The screen for selecting a
maintenance item No. is displayed.
U112 Setting toner refresh operation
Description
Sets the drum refresh operation time and the developing bias on time at power on and after copying.
Purpose
To change the drum refresh operation time and the developing bias on time at power on and after copying if
image flow level is low.
Method
Press the start key. The screen for executing is displayed.
Setting
1. Select the item to be set. The selected item is displayed in reverse.
2. Change the setting using the cursor up/down keys.
Display Description Setting range Initial setting
ON TIME(SEC) Toner refresh operation time 50 to 150 (sec) 120
BIAS TIME(MSEC) Developing bias on time 500 to 1000 (msec) 700
3. Press the start key. The value is set.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.

1-4-26
 2DF

Maintenance
Description
item No.
U113 Performing drum refresh operation
Description
Executes drum refresh operation.
Purpose
To operate when image flow occurs.
Method
1. Press the start key. The screen for executing is displayed.
2. Press the start key. Drum refresh operation starts. (approximately 3 minutes)
3. To stop the operation, press the stop/clear key.
Completion
Press the stop/clear key when the operation stops. The screen for selecting a maintenance item No. is
displayed.
U130 Initial setting for the developer
Description
Replenishes toner to the developer unit to a certain level from the toner container that has been installed.
Purpose
To operate when installing the machine or replacing the developing unit.
Method
1. Press the start key. The screen for executing is displayed.
2. Press the start key. The time that elapses until initialization is complete and whether or not toner remains in
the developing unit (0: No, 1: Yes) are displayed.
Supplement
The following data is also renewed or cleared by performing this maintenance item:
• Clearing the developing drive time (U157)
• Clearing the developing count (U158)
• Resetting the toner feed start level and toner empty detection
Completion
Press the stop/clear key after initial setting is complete. The screen for selecting a maintenance item No. is
displayed.
U144 Setting toner loading operation
Description
Sets toner loading operation after completion of copying.
Purpose
To set whether or not toner is loaded on the drum after low density copying. Normally no change is necessary
from the initial setting.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the item. The selected item is displayed im reverse.
Display Description
MODE0 Toner not loaded
MODE1 Toner not loaded
MODE2 Toner loaded
Initial setting: MODE2
3. Press the start key. The value is set.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.

1-4-27
2DF

Maintenance
Description
item No.
U150 Checking sensors and switches for toner
Description
Displays the on-off status of each sensor or switch related to toner.
Purpose
To check if the sensors and switches operate correctly.
Method
1. Press the start key. A list of the switches, the on-off status of which can be checked, are displayed.
2. Turn each switch on and off manually to check the status.
When the on-status of a switch is detected, that switch is displayed in reverse.
Display Switches
DEVELOPER SENSOR Toner sensor (TNS)
CONTAINER SET Toner container detection switch (TCDSW)
CONTAINER SENSOR Toner container sensor (TCS)
DISPOSAL TANK SET Toner disposal tank detection switch (TDDSW)
DISPOSAL TANK SENSOR Overflow sensor (OFS)

Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
U157 Checking/clearing the developing drive time
Description
Displays the developing drive time for checking, clearing or changing a figure, which is used as a reference
when correcting the toner control. It is automatically cleared when U130 is executed.
Purpose
To check the developing drive time after replacing the developing unit.
Method
Press the start key. The developing drive time is displayed in minutes.
Clearing
1. Press the reset key.
2. Press the start key. The time is cleared, and the screen for selecting a maintenance item No. is displayed.
Setting
1. Enter a five-digit drive time (in minutes) using the numeric keys.
2. Press the start key. The time is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the time, press the stop/clear key. The screen for selecting a
maintenance item No. is displayed.

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Maintenance
Description
item No.
U158 Checking/clearing the developing count
Description
Displays the developing count for checking, clearing or changing a figure, which is used as a reference when
correcting the toner control. It is automatically cleared when U130 is executed.
Purpose
To check the developing count after replacing the developing unit.
Method
Press the start key. The developing count is displayed.
Clearing
1. Press the reset key.
2. Press the start key. The count is cleared, and the screen for selecting a maintenance item No. is displayed.
Setting
1. Enter a six-digit count using the numeric keys.
2. Press the start key. The count is cleared, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the count, press the stop/clear key. The screen for selecting a
maintenance item No. is displayed.
U161 Setting the fixing control temperature
Description
Changes the fixing control temperature.
Purpose
Normally no change is necessary. However, can be used to prevent curling or creasing of paper, or solve a
fixing problem on thick paper.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the item to be set. The screen for executing each item is displayed.
Display Description
CONTROL TEMP Sets the fixing control temperature.
CORRECT TEMP Sets the fixing correct temperature.
Setting the fixing control temperature
1. Select the item to be set. The selecting item is displayed in reverse.
2. Change the setting using the cursor up/down keys.
Display Description Setting range Initial setting
CONT TEMP Control temperature during copying 100 to 200 (°C) 165
1ST TEMP Primary stabilization fixing temperature 80 to 200 (°C) 110
2ND TEMP Secondary stabilization fixing temperature 100 to 200 (°C) 165
MH OFF TIME(S) OFF time of fixing heater M 5 to 20 12
The respective temperatures are to be set such that 2ND TEMP = > 1ST TEMP.
If fixing offset occurs due to excessive fixing temperature, you can increase the preset value of MH OFF
TIME(S) to increase the OFF time of fixing heater M to solve this problem.
3. Press the start key. The value is set.

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Maintenance
Description
item No.
U161 Setting the fixing correct temperature
1. Select the item to be set. The selecting item is displayed in reverse.
2. Change the setting using the cursor up/down keys.
Display Description Setting range Initial setting
COPY UP TEMP(L) Fixing correct temperature -30 to +30 (°C) 5
for large size copying
COPY UP TEMP(M) Fixing correct temperature -30 to +30 (°C) 2
for middle size copying
COPY UP TEMP(S) Fixing correct temperature -30 to +30 (°C) 0
for small size copying
L/L UP TEMP Fixing temperature increase amount 0 to +20 (°C) 5
at low temperature and low humidity
H/H DOWN TEMP Fixing temperature decrease amount 0 to +20 (°C) 5
at high temperature and high humidity
DUP DOWN TEMP Fixing temperature decrease amount 0 to +20 (°C) 5
for duplex copying
3. Press the start key. The value is set.
Interrrupt copy mode
While this maintenance item is being performed, copying from an original can be made in interrupt copy mode.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.
U162 Stabilizing fixing forcibly
Description
Stops the stabilization fixing drive forcibly, regardless of fixing temperature.
Purpose
To forcibly stabilize the machine before the fixing section reaches stabilization temperature.
Method
1. Press the start key. The screen for executing is displayed.
2. Press the start key. The forced stabilization mode is entered, and stabilization operation stops regardless
of fixing temperature. The screen for selecting a maintenance item No. is displayed.
To exit the forced stabilization mode, turn the power off and on.
Completion
To exit this maintenance item without executing forced fixing stabilization, press the stop/clear key.The screen
for selecting a maintenance item No. is displayed.
U163 Resetting the fixing problem data
Description
Resets the detection of a service call code indicating a problem in the fixing section.
Purpose
To prevent accidents due to an abnormally high fixing temperature.
Method
1. Press the start key. The screen for executing is displayed.
2. Press CANCEL on the touch panel.
3. Press the start key. The fixing problem data is initialized.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.

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Maintenance
Description
item No.
U165 Checking/clearing fixing counts
Description
Displays or clears fixing counts.
Purpose
To check fixing counts after replacing the fixing unit.
Method
Press the start key. The fixing counts are displayed.
Clearing
1. Press the reset key.
2. Press the start key. The count is cleared, and the screen for selecting a maintenance item No. is displayed.
Setting
1. Enter a four-digit value using the numeric keys.
2. Press the start key. The value is set. The screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current value, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.
U196 Turning the fixing heater on
Description
Turns the fixing heater M or S on.
Purpose
To check fixing heaters turning on.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the heater to be turned on. The selected heater turns on for 3 s and then turns off.
Display Description
MAIN Fixing heater M (FH-M)
SUB Fixing heater S (FH-S)

Completion
Press the stop/clear key when fixing motors M and S are off. The screen for selecting the maintenance item No.
is displayed.
U199 Checking the fixing temperature
Description
Displays the fixing temperature, the ambient temperature and the absolute humidity.
Purpose
To check the fixing temperature, the ambient temperature and the absolute humidity.
Method
Press the start key. The fixing temperature and ambient temperature are displayed in centigrade (°C) and the
absolute humidity is displayed in percentage (%).
Display Description
FIX TEMP Fixing temperature (°C)
SURROUND TEMP Ambient temperature (°C)
HUMIDITY Absolute humidity (%)

Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.

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Maintenance
Description
item No.
U200 Turning all LEDs on
Description
Turns all the LEDs on the operation panel on.
Purpose
To check if all the LEDs on the operation panel light.
Method
Press the start key. All the LEDs on the operation panel light.
Press the stop/clear key or wait for 10 s. The LEDs turns off, and the screen for selecting a maintenance item
No. is displayed.
U201 Initializing the touch panel
Description
Automatically correct the positions of the X- and Y-axes of the touch panel.
Purpose
To automatically correct the display positions on the touch panel after it is replaced.
Method
1. Press the start key. The screen for executing is displayed, and the + key displayed at the upper left of the
touch panel flashes.
2. Press on the center of the + key. The + key on lower right flashes.
3. Press the center of the flashing +. Initialization of the touch panel is complete, and the screen for selecting
a maintenance item No. is displayed.
Completion
To exit this maintenance item without initializing, press the stop/clear key. The screen for selecting a
maintenance mode No. is displayed.
U202 Setting the KMAS host monitoring system
Description
Initializes or operates the KMAS host monitoring system.
This is an optional device which is currently supported only by Japanese specification machines, so no setting
is necessary.

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Maintenance
Description
item No.
U203 Operating DF separately
Description
Simulates the original conveying operation separately in the optional DF.
Purpose
To check the DF.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Place an original in the DF if running this simulation with paper.
3. Select the item to be operated. The selected item is displayed in reverse.
4. Select the magnification using the cursor up/down keys.
Display Operation Setting range Initial setting
ADF With paper, single-sided original 50 to 200 (%) 100
RADF With paper, double-sided original 50 to 200 (%) 100
ADF (NON-P) Without paper, single-sided original 50 to 200 (%) 100
(continuous operation)
RADF (NON-P) Without paper, double-sided original 50 to 200 (%) 100
(continuous operation)
5. Press the start key. The operation starts for the selected magnification.
6. To stop continuous operation, press the stop/clear key.
Completion
Press the stop/clear key when the operation stops. The screen for selecting a maintenance item No. is
displayed.
U204 Setting the presence or absence of a key card or key counter
Description
Sets the presence or absence of the optional key card or key counter.
Purpose
To run this maintenance item if a key card or key counter is installed.
Method
Press the start key. The screen for selecting an item is displayed
Setting
1. Select the optional counter to be installed using the cursor up/down keys. The selected counter is
displayed in reverse.
Display Description
KEY-CARD The key card is installed
KEY-COUNTER The key counter is installed
2. Press the start key. The setting is set and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.

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Maintenance
Description
item No.
U206 Setting the presence or absence of the coin vender
Description
Sets the presence or absence of the optional coin vender. Also sets the details for coin vender operation, such
as mode and unit price.
This is an optional device which is currently supported only by Japanese specification machines, so no setting
is necessary.
U207 Checking the operation panel keys
Description
Checks operation of the operation panel keys.
Purpose
To check operation of all the keys and LEDs on the operation panel.
Method
1. Press the start key. The screen for executing is displayed.
2. "COUNT1" is displayed and the leftmost LED on the operation panel lights.
3. As the keys lined up in the same line as the lit indicator are pressed in the order from the top to the bottom,
the figure shown on the touch panel increases in increments of 1. When all the keys in that line are pressed
and if there are any LEDs corresponding to the keys in the line on the immediate right, the top LED in that
line will light.
4. When all the keys on the operation panel have been pressed, all the LEDs light for up to 10 seconds.
5. When the LEDs go off, press the start key. All the LEDs light for 10 seconds again.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
U208 Setting the paper size for the large paper deck
Description
Sets the size of paper used in the optional large paper deck. Note that the setting cannot be changed on inch-
specification machines since the paper size for the large paper deck is fixed.
Purpose
To change the setting when the size of paper used in the large paper deck is changed.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select the paper size (A4 or B5). The selected item is displayed in reverse.
Initial setting: A4
2. Press the start key. The setting is set.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
U211 Setting DF type
Descrioption
Sets the optional DF type (STDF or SRDF). (For 25 cpm copier only)
Purpose
To set DF type when installing.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select DF type. The selected item is displayed in reverse.
Display Description
SADF Single-sided (STDF)
SRADF Double-sided (SRDF)
2. Press the start key. The type is set.
Completion
Press the stop/clear key. The screen for selectiong a maintenance item No. is displayed.

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Maintenance
Description
item No.
U217 Setting 81/2" × 13" paper
Description
Turn on the setting when using 81/2" × 13" paper.
Purpose
To change the setting as needed.
Method
Press the start key. The screen for selscting an item is displayed.
Setting
1. Select ON or OFF. The selected item is displayed in reverse.
Display Description
ON 81/2" × 13" paper is used.
OFF 81/2" × 13" paper is not used.
2. Press the start key. The value is set. The screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.
U236 Setting the limit for the ejection section of the built-in finisher
Description
If the machine is equipped with an optional built-in finisher, this mode sets whether A5/51/2 × 81/2 size paper is
output to the machine internal tray or not.
Purpose
If the machine is equipped with an optional built-in finisher and if paper jams occur due to curling of paper in the
built-in ejection section when two-sided copying onto A5/51/2 × 81/2 size paper is performed, this mode is used
to change the setting to ON to disable ejection to the machine internal tray.
Method
Press the start key. The screen for executing is displayed.
Setting
1. Select ON or OFF. The selected item is displayed in reverse.
Display Description
ON Does not eject to the machine internal tray.
OFF Eject to the machine internal tray.
Initial setting: OFF
2. Press the start key. The setting is set.
Completion
Press the stop/clear key. The screen for selectiong a maintenance item No. is displayed.

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Maintenance
Description
item No.
U237 Setting finisher stack quantity
Description
Sets the number of sheets of each stack on the main tray and on the intermediate tray in the optional finisher.
Purpose
To change the setting when a stack malfunction has occurred.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the item to be set. The selected item is displayed in reverse.
Display Description
MAIN TRAY Number of sheets of stack on the main tray
MIDDLE TRAY Number of sheets of stack on the intermediate tray for sort
copying or staple copying

Setting the number of sheets of stack on the main tray

1. Change the setting using the cursor up/down keys.
Setting Description
0 3000-sheet finisher: 3000 sheets, built-in finisher: 500 sheets
1 3000-sheet finisher: 1500 sheets, built-in finisher: 250 sheets
Initial setting: 0
2. Press the start key. The setting is set.
Setting the number of sheets of stack on the intermediate tray for sort copying or staple copying
1. Change the setting using the cursor up/down keys.
Setting Description
0 For sort copying: 30 sheets, for staple copying: 50 sheets
1 For sort copying: 30 sheets, for staple copying: 30 sheets
Initial setting: 0
2. Press the start key. The setting is set.
Completion
Press the stop/clear key. The screen for selectiong a maintenance item No. is displayed.

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Maintenance
Description
item No.
U243 Checking the operation of the DF motors, solenoids and clutch
Description
Turns the motors, solenoids or clutch in the optional DF on.
Purpose
To check the operation of the DF motors, solenoids and clutch .
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the item to be operated. The selected item is displayed in reverse and the operation starts.
Display Motors, solenoids and clutch Operation In operation
F MOT Original feed motor (OFM) In operation
C MOT Original paper conveying motor (OCM) On for 0.5 s
FD CL Original feed clutch (OFCL) On for 0.5 s
EJ SL Eject feedshift solenoid (EFSSOL) On for 0.5 s
RJ SL Switchback feedshift solenoid (SBFSSOL) On for 0.5 s
FD SL Original feed solenoid (OFSOL) On and off
RP SL Switchback pressure solenoid (SBPSOL) On and off
3. To turn each motor off, press the stop/clear key.
Completion
Press the stop/clear key when operation stops. The screen for selecting a maintenance item No. is displayed.
U244 Checking the DF switches
Description
Displays the status of the respective switches in the optional DF.
Purpose
To check if respective switches in the optional DF operate correctly.
Start
1. Press the start key. The screen for selecting an item is displayed.
2. Select the type of switches (SW or VR) to be checked. The screen for executing each item is displayed.
Display Type of switches
SW On/off switches
VR Volume switch

Method for the on/off switches

1. Turn the respective switches on and off manually to check the status.
If the on-status of a switch is detected, the corresponding switch is displayed in reverse.
Display Switches
SET SW Original set switch (OSSW)
FEED SW Original feed switch (OFSW)
REV SW Original switchback switch (OSBSW)
TMG SW DF timing switch (DFTSW)
SZ A SW Original size length switch (OSLSW)
2. To return to the screen for selecting an item, press the stop/clear key.

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Maintenance
Description
item No.
U244 Method for the volume switch
1. Move the original insertion guides to check the detection status of the original size width switch.
The detected original width is displayed as a numerical value with the decimals omitted.

Numerical
Original width to be detected
value
000
51/2" × 81/2"

····
49.664

····
A5R
50.176

····
61.440

····
61.952
····
B5R
103.936 81/2" × 14"/
81/2" × 11"
····

104.448
····

Folio/A4R
139.264
····

139.776
····

146.432
····

B4/B5
146.994
····

197.120
····

197.632 11" × 17"/

CF (11" × 15") 11" × 15"/
····

197.720 11" × 81/2"

····

223.232
····

A3/A4
256

For example, if any value between 105 and 139 is displayed when the original insertion guides are adjusted
for A4R paper, it indicates that the original width is detected correctly.
2. To return to the screen for selecting an item, press the stop/clear key.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.

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Maintenance
Description
item No.
U245 Checking messages
Description
Displays a list of messages on the touch panel of the operation panel.
Purpose
To check the messages to be displayed.
Method
1. Press the start key.
2. Select the item to be displayed.
3. Change the screen using the cursor up/down keys to display each message one at a time.
When a message number is entered with the numeric keys and then the start key is pressed, the message
corresponding the specified number is displayed.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
U246 Setting the finisher
Description
Adjusts various items if the machine is equipped with an optional finisher.
3000-sheet finisher: Adjusts the amount of slack in the paper in punch mode.
Booklet stitcher: Adjusts the booklet stapling position for each paper size.
Built-in finisher: Adjusts the side registration cursor stop position in the staple sort mode.
Purpose
Adjusts the amount of slack in the paper while in the punch section if, in punch mode, paper jams or is Z-folded
frequently due to too much slack in the paper, or, the position of punch holes varies due to too little slack in the
paper.
Adjusts the booklet stapling position in the stitching mode if the position is not proper.
To adjust when registration is not proper or staple position is shifted in the staple sort mode.
Start
1. Press the start key. The screen for selecting an item is displayed.
2. Select the item to be set and press the start key. The screen for executing each item is displayed.
Display Description
3000 FINISHER Adjustment of the amount of slack in the paper in punch mode
SADDLE FINISHER Adjustment of the booklet stapling position
INNER FINISHER Side registration cursor stop position

Setting the amount of slack in the paper

1. Change the setting using the cursor up/down keys.
Description Setting range Initial setting
Amount of slack in the paper -15 to +15 0
If the position of punch holes varies, increase the setting to make the amount of slack larger.
If paper jams or is Z-folded frequently, decrease the setting to make the amount of slack smaller.
2. Press the start key. The value is set.
3. To return to the screen for selecting an item, press the stop/clear key.
Setting the booklet stapling position
1. Select the size to be set. The selected item is displayed in reverse.
2. Change the setting using the cursor up/down keys.
Change in value
Display Description Setting range Initial setting per step
A4R/LTR Adjustment of booklet stapling –125 to +125 0 0.25 mm
position for A4R/LTR size
B4R Adjustment of booklet stapling –125 to +125 0 0.25 mm
position for B4R size
A3R/LDR Adjustment of booklet stapling –125 to +125 0 0.25 mm
position for A3R/LDR size

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Maintenance
Description
item No.
U246

Left stapling Right stapling Adjustment method

Proper

Decrease the preset

value.
Upper side is longer. Lower side is longer.

Increase the preset

value.
Lower side is longer. Upper side is longer.

3. Press the start key. The value is set.

4. To return to the screen for selecting an item, press the stop/clear key.
Setting the side registration cursor stop position
1. Select the desired cursor position. The selected item is displayed in reverse.
2. Change the setting using the cursor up/down keys.
Display Description Setting range Initial setting
FRONT Front side registration cursor stop position -4 to +4 0
REAR Rear side registration cursor stop position -4 to +4 0
END Trailing edge registration cursor stop position -4 to +4 0
3. Press the start key. The value is set.
4. To return to the screen for selecting an item, press the stop/clear key.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.

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Maintenance
Description
item No.
U247 Checking the operation of large paper deck and paper feed desk
Description
Turns on motors and clutches of optional large paper deck or paper feed desk.
Purpose
To check the operation of motors and clutches of paper feed device.
Start
1. Press the start key. The screen for selecting an item is displayed.
2. Select the device to be checked.
Display Paper feed device
3000 DECK Large paer deck
500 × 2 DECK Paper feed desk

Method
1. Select the item to be operated. The selected item is displayed in reverse and operation starts.
Large paper deck
Display Motors and clutches Operation
LCF MOT Conveying motor (CM) On for 5 s
B CL Conveying clutch (CCL) On for 1 s
PCL1 Paper feed clutch 1(PFCL1) On for 1 s
PCL2 Paper feed clutch 2(PFCL2) On for 1 s
Paper feed desk
Display Motors and clutches Operation
DESK MOT Desk Drive motor (DDM) On for 5 s
FEED CL Desk feed clutch (DFCL) On for 1 s
UPP CL Desk upper paper feed clutch (DPFCL-U) On for 1 s
LOW CL Desk lower paper feed clutch (DPFCL-L) On for 1 s
2. To return to the screen for selecting an item, press the stop/clear key.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.

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Maintenance
Description
item No.
U249 Checking the paper ejection to optional devices
Description
Ejects paper to an optional mailbox or job separator, or to the ejection slot at the machine left.
Purpose
To check paper conveying operation to optional paper eject devices or the ejection slot at the machine left.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the paper eject location.
Display Paper eject device
MAIL BOX Mailbox
JOB SEPARATOR Job separator
LEFT BIN OUTPUT Ejection slot at the machine left (finisher not installed)
3. When selecting the mailbox, specify the mail tray number (1 to 7) to which paper is to be ejected by using
the cursor up/down keys. If 0 is selected, paper is ejected to the mail trays in ascending order from mail tray
1 to mail tray 7 repeatedly.
Interrupt copy mode
While this maintenance item is being performed, copying from an original can be made in interrupt copy mode.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
U250 Setting the maintenance cycle
Description
Displays and changes the maintenance cycle.
Purpose
To check and change the maintenance cycle.
Method
Press the start key. The current setting is displayed as follows:
Setting
1. Change the setting using the numeric keys.
Description Setting range Initial setting
Maintenance cycle 0 to 600000 500000 (35/40 cpm) 400000 (25 cpm)
2. Press the start key. The value is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.

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Maintenance
Description
item No.
U251 Checking/clearing the maintenance count
Description
Displays, clears and changes the maintenance count.
Purpose
To check the maintenance count. Also to clear the count during maintenance service.
Method
Press the start key. The maintenance count is displayed.
Clearing
1. Press the reset key.
2. Press the start key. The count is cleared, and the screen for selecting a maintenance item No. is displayed.
Setting
1. Enter a six-digit count using the numeric keys.
2. Press the start key. The count is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the count, press the stop/clear key. The screen for selecting a
maintenance item No. is displayed.
U252 Setting the destination
Description
Switches the operations and screens of the machine according to the destination.
Purpose
To be executed after replacing the backup RAM on the main PCB or initializing the backup RAM by running
maintenance item U020, in order to return the setting to the value before replacement or initialization.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select the destination. The selected item is displayed in reverse.
Display Description
JAPAN METRIC Metric (Japan) specifications
INCH Inch (North America) specifications
EUROPE METRIC Metric (Europe) specifications
ASIA PACIFIC Metric (Asia Pacific) specifications
2. Press the start key. The setting is set, and the machine automatically returns to the same status as when
the power is turned on.
Completion
To exit this maintenance item without changing the current count, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.
Supplement
The specified initial settings are provided according to the destinations in the maintenance items below. To
change the initial settings in those items, be sure to run maintenance item U021 after changing the destination.
• Initial setting according to the destinations
Maintenance Title Japan Inch Europe Metric,
item No. Asia Pacific
253 Switching between double and single counts Single Double Double
255 Setting auto clear time 120 s 90 s 90 s

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Maintenance
Description
item No.
U253 Switching between double and single counts
Description
Switches the count system for the total counter and other counters.
Purpose
According to user (copy service provider) request, select if A3/11" × 17" paper is to be counted as one sheet
(single count) or two sheets (double count).
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select double or single count. The selected item is displayed in reverse.
Display Description
DOUBLE COUNT Double count for A3/11" × 17" paper only
SINGLE COUNT Single count for all size paper
Initial setting: DOUBLE COUNT
2. Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.
U254 Turning auto start function on/off
Description
Selects if the auto start function is turned on.
Purpose
Normally no change is necessary. If incorrect operation occurs, turn the function off: this may solve the
problem.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select either ON or OFF. The selected item is displayed in reverse.
Display Description
ON Auto start function on
OFF Auto start function off
Initial setting: ON
2. Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.

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Maintenance
Description
item No.
U255 Setting auto clear time
Description
Sets the time to return to initial settings after copying is complete.
Purpose
To be set according to frequency of use. Set to a comparatively long time for continuous copying at the same
settings, and a comparatively short time for frequent copying at various settings.
Method
Press the start key. The current setting is displayed.
Setting
1. Change the setting using the cursor up/down keys.
Description Setting range Initial setting
Auto clear time 0 to 270 90
The setting can be changed by 30 s per step.
When set to 0, the auto clear function is cancelled.
2. Press the start key. The value is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.
U256 Turning auto preheat/energy saver function on/off
Description
Selects if the auto preheat/energy saver function is turned on. When set to ON, the time to enter preheat/
energy saver mode can be changed in copy management mode.
Purpose
According to user request, to set the preheat time to save energy, or enable copying promptly without the
recovery time from preheat mode.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select ON or OFF. The selected item is displayed in reverse.
Display Description
ON Auto preheat/energy saver function on
OFF Auto preheat/energy saver function off
Initial setting: ON
2. Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed.
When the setting is changed from OFF to ON, the auto preheat time is set to the initial setting of 15
minutes.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.

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Maintenance
Description
item No.
U258 Switching copy operation at toner empty detection
Description
Selects if continuous copying is enabled after toner empty is detected, and sets the number of copies that can
be made after the detection.
Method
Press the start key. The current setting is displayed.
Setting
1. Select single or continuous copying. The selected item is displayed in reverse.
Display Description
SINGLE Enables only single copying.
CONTINUE Enables single and continuous copying.
Initial setting: SINGLE
2. Set the number of copies that can be made using the cursor up/down keys.
Description Setting range Initial setting
Number of copies after toner empty detection 5 to 200 (copies) 70
The setting can be changed by 5 copies per step.
When set to 0, the number of copies is not limited regardless of the setting for single or continuous copying.
3. Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.
U260 Changing the copy count timing
Description
Changes the copy count timing for the total counter and other counters.
Purpose
To be set according to user (copy service provider) request.
If a paper jam occurs frequently in the finisher when the number of copies is counted at the time of paper
ejection, copies are provided without copy counts. The copy service provider cannot charge for such copying.
To prevent this, the copy timing should be made earlier.
If a paper jam occurs frequently in the paper conveying or fixing sections when the number of copies is counted
before the paper reaches those sections, copying is charged without a copy being made. To prevent this, the
copy timing should be made later.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select the copy count timing . The selected item is displayed in reverse.
Display Description
FEED When secondary paper feed starts
EJECT When the paper is ejected
Initial setting: EJECT
2. Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.

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Maintenance
Description
item No.
U264 Setting the display order of the date
Description
Selects year, month and day as the order of that appears on lists, etc.
Purpose
Set according to the user preference.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Press the start key. The screen for selecting an item is displayed.
2. Select the desired order.
Display Setting
YEAR-MONTH-DATE Year/Month/Day
MONTH-DATE-YEAR Month/Day/Year
DATE-MONTH-YEAR Day/Month/Year
Initial setting: "MONTH-DATE-YEAR" (for the inch specifications)
"DATE-MONTH-YEAR" (for the metric specifications)
3. Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.
U265 Setting OEM purchaser code
Description
Sets the OEM purchaser code.
Purpose
Sets the code when replacing the main PCB and the like.
Method
Press the start key.
Setting
1. Use the numeric keys or cursor up/down keys to adjust the preset value.
2. Press the start key. The count is set , and the screen for selecting a maintenance item is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item is displayed.
U274 Setting the laser scanner unit type
Description
Sets the type of the laser scanner unit according to the label stuck on the laser scanner unit. Moreover,
changes output power of the laser scanner unit.
Purpose
To set the type when the laser scanner unit control is changed. Also if reproducibility of half tone is not proper,
this mode is used to increase the output power of the laser scanner unit to increase the density.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select the item to be set. The selected item is displayed in reverse.
2. Change the setting using the cursor up/down keys.
Display Description Setting range Initial setting
ADJUST DATA Type of the laser scanner unit 0 to 3 2
LASER POWER Laser scanner unit output power 0 to 1 0
The setting of LASER POWER is changed into 1 from 0, the output power of LSU is go up and half-tone is
come to come out darkly.
3.Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item is displayed.

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Maintenance
Description
item No.
U329 Default setting Auto rotation copy/Sort copy
Description
Sets the initial mode for the Auto rotation copy/Sort copy selected when auto clear is triggered or the reset key
is pressed.
Purpose
To be set as required according to the user.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the item to be set.
Setting Auto rotation copy
1. Select ON or OFF.
Initial setting: ON
2. Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed.
Setting Sort copy
1. Select ON or OFF.
Initial setting: ON
2. Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.
U330 Setting the number of sheets to enter stacking mode during sort operation
Description
When sort copying is set to perform automatically in the output form setting of the user simulation, sets the
number of sheets at which the eject location is switched to the optional finisher (only when the finisher is
installed).
Purpose
To be set as required according to the number of copies the user makes.
Method
Press the start key. The current setting is displayed.
Setting
1. Set the number of sheets (o to 250) using the numeric keys or cursor up/down keys.
2. Press the start key. The setting is set. The screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.
U331 Switching the finisher eject section
Description
Sets whether or not copies made by copying from the original table are ejected face up to the auxiliary tray of
the optional 3000-sheet finisher or booklet stitcher.
Purpose
Select ON to eject copies to the auxiliary tray regardless of the ejection section priority.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select FACE UP ON or FACE UP OFF. The selected item is displayed in reverse.
Display Description
FACE UP ON To eject copies to the auxiliary tray face up
FACE UP OFF To eject copies to the eject section with the highest priority
Initial setting: OFF
2. Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item is displayed.

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1-4-45-1
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This page is intentionally left blank.

1-4-47
2DF

Maintenance
Description
item No.
U332 Setting the size conversion factor
Description
Sets the factor for converting each paper size into A4/11" × 81/2". The black ratio is converted for the A4/11" ×
81/2" size using the factor set in this maintenance item. Values set are displayed in the user simulation.
Purpose
To set the factor to convert the black ratio of each paper size for A4/11" × 81/2" size.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the paper size.
3. Change the setting using the cursor up/down keys.
The size conversion factor can be set separately for the copier mode (COPY), the printer mode (PRI) and
the fax mode (FAX) at the screen for setting the size conversion factor.
Metric models
Display Description Setting Initial setting
COPY PRI FAX
A3 Size conversion factor for A3 0.0 to 3.0 2.0 2.0 2.0
B4 Size conversion factor for B4 0.0 to 3.0 1.5 1.5 1.5
A4 Size conversion factor for A4 0.0 to 3.0 1.0 1.0 1.0
B5 Size conversion factor for B5 0.0 to 3.0 0.7 0.7 0.7
A5 Size conversion factor for A5 0.0 to 3.0 0.5 0.5 0.5
B6 Size conversion factor for B6 0.0 to 3.0 0.4 0.4 0.4
FOLIO Size conversion factor for folio 0.0 to 3.0 0.3 0.3 0.3
OTHER Size conversion factor for non-standard sizes 0.0 to 3.0 1.0 1.0 1.0
Inch models
Display Description Setting Initial setting
COPY PRI FAX
11 × 17 Size conversion factor for 11" × 17" 0.0 to 3.0 2.0 2.0 2.0
8.5 × 14 Size conversion factor for 8.5" × 14" 0.0 to 3.0 1.5 1.5 1.5
8.5 × 11 Size conversion factor for 8.5" × 11" 0.0 to 3.0 1.0 1.0 1.0
5.5 × 8.5 Size conversion factor for 5.5" × 8.5" 0.0 to 3.0 0.7 0.7 0.7
OTHER Size conversion factor for non-standard sizes 0.0 to 3.0 0.5 0.5 0.5
4. Press the start key. The setting is set.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item is displayed.
U341 Specific paper feed location setting for printing function
Description
Sets a paper feed location specified for printer output (only if a printer kit is installed).
Purpose
To use a paper feed location only for printer output.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the paper feed location for the printer. The selected item is displayed in reverse.
Display Description
FIRST Upper drawer
SECOND Lower drawer
THIRD Optional upper drawer
FOURTH Optional lower drawer
LCF Optional large paper deck
3. Press the start key. The setting is set.
Completion
Press the stop/clear key. The screen for selecting a maintenance item is displayed.

1-4-46
 2DF

Maintenance
Description
item No.
U342 Setting the ejection restriction
Description
Sets or cancels the restriction on the number of sheets to be ejected continuously when the internal eject tray
is selected as the eject location.
Purpose
According to user request, sets or cancels restriction on the number of sheets.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select ON or OFF.
Display Description
ON Sets restriction on the number of sheets
OFF Cancels restriction on the number of sheets
Details of restriction (number of sheets to be ejected continuously after the start key is pressed)
Condition Number of sheets
When no optional ejection device is installed 250
When the job separator or duplex unit is installed 150
When the finisher is installed 100
3. Press the start key. The setting is set.
Completion
Press the stop/clear key. The screen for selectiong a maintenance item No. is displayed.
U343 Switching between duplex/simplex copy mode
Description
Switches the initial setting between duplex and simplex copy.
Purpose
To be set according to frequency of use: set to the more frequently used mode.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select ON or OFF. The selected item is displayed in reverse.
Display Description
ON Duplex copy
OFF Simplex copy
Initial setting: OFF
2. Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.

1-4-47
2DF

Maintenance
Description
item No.
U344 Setting preheat/energy saver mode
Description
Changes the control for preheat/energy saver mode.
Purpose
According to user request, selects which has priority, the recovery time from preheat or energy saver.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select control mode. The selected item is displayed in reverse.
Display Control in preheat mode
INSTANT READY Without decreasing the fixing control temperature, the display on the
operation panel is turned off.
ENERGY STAR The fixing control temperature is set at 130°C.
The copier is forcibly stabilized 30 s after exiting preheat/energy saver mode.
E 2000 The fixing control temperature is decreased by 70°C.
Initial setting: ENERGY STAR
2. Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.
U345 Setting the value for maintenance due indication
Description
Sets when to display a message notifying that the time for maintenance is about to be reached, by setting the
number of copies that can be made before the current maintenance cycle ends.
When the difference between the number of copies of the maintenance cycle and that of the maintenance
count reaches the set value, the message is displayed.
This maintenance mode is effective for only Japanese specification.
U346 Setting the sleep mode operation
Description
If the machine is equipped with the facsimile feature, this mode sets whether or not the machine performs
finisher initialization when the machine receives a facsimile with the main switch off.
Purpose
To disable finisher initialization, change the setting value to MODE1. If MODE1 is selected, however, even if the
main switch is turned off, control in the sleep mode will be performed and the power supply PCB will not be
turned off, resulting in increase of power consumption.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select MODE0 or MODE1. The selected item is displayed in reverse.
Display Description
MODE0 To enable finisher initialization
MODE1 To disable finisher initialization
Initial setting: MODE0
2. Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.
U402 Adjusting margins of image printing
Adjustment
See page 1-6-13.
U403 Adjusting margins for scanning an original on the contact glass
Adjustment
See page 1-6-31.

1-4-48
 2DF

Maintenance
Description
item No.
U404 Adjusting margins for scanning an original from the DF
Description
Adjusts margins for scanning the original from the DF.
Purpose
Used if margins are not correct when the optional DF is used.
Caution
Before making this adjustment, ensure that the following adjustments have been made in maintenance mode.
U402 U403 U404

Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select the item to be set. The selected item is displayed in reverse.
2. Change the setting using the cursor up/down keys.
Display Description Setting range Initial setting Change in value per step
A MARGIN Left margin 0 to 10 2 0.5 mm
B MARGIN Leading edge margin 0 to 10 3 0.5 mm
C MARGIN Right margin 0 to 10 2 0.5 mm
D MARGIN Trailing edge margin 0 to 10 2 0.5 mm
Increasing the setting makes the margin wider, and decreasing it makes the margin narrower.

DF leading edge margin (3 ± 1.5 mm)

Ejection direction
(reference) DF left margin DF right margin
(2 ± 1.0 mm) (2 ± 1.0 mm)

DF trailing edge margin

(2 ± 1.0 mm)

Figure 1-4-7 Correct margin amount

3. Press the start key. The value is set.

Interrupt copy mode
While this maintenance item is being performed, copying from an original can be made in interrupt copy mode.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.
U407 Adjusting the leading edge registration for memory image printing
Adjustment
See page 1-6-11.

1-4-49
2DF

Maintenance
Description
item No.
U500 Setting the limit on data size for email transmission
Description
Sets the limit on the amount of data (number of originals) sent via email from the optional network scanner.
Purpose
To change the setting according to the network environment.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select the desired transmission capacity. The selected item is displayed in reverse.
Display Setting
LITTLE 512 K bytes
MEDIUM 51024 K bytes
LARGE 2048 K bytes
UNLIMITED 999 number-of-sheets restrictions
Initial setting: LITTLE
2. Press the start key. The value is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.
U501 Setting image area
Description
Implements the command to cut the area around the image when sending image data to the optional network
scanner.
Purpose
To disable image cut.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select ON or OFF. The selected item is displayed in reverse.
Display Setting
ON Cuts the image area (6.5 mm)
OFF Does NOT cut the image area
Initial setting: ON
2. Press the start key. The value is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.

1-4-50
1-4-49-1
 2DF

Maintenance
Description
item No.
U504 Initializing the scanner NIC
Description
Initializing the optional scanner NIC to its factory default.
Purpose
To return to a setup at the time of factory shipments.
Method
1. Press the start key. The screen for executing is displayed.
2. Press EXECUTE on the touch panel. It is displayed in reverse.
3. Press the start key. All data in the scanner NIC is initialized.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
U505 Setting Data Base Assistant
Description
Sets whether or not the database linkage setting is enabled if an optional network scanner is installed.
Purpose
According to user request, changes the setting.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select ON or OFF. The selected item is displayed in reverse.
Display Description
ON Database linkage setting is enabled.
OFF Database linkage setting is disabled.
Initial setting: ON
2. Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.
U540 Adjusting the auxiliary scanning magnification
Description
Changes the magnification ratio in the auxiliary scanning direction when an optional network scanner is used.
Purpose
When an optional network scanner is used, if stripes appear at regular intervals in the auxiliary scanning
direction, this mode allows fine adjustment of the magnification ratio to suppress the stripes.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select the resolution. The selected item is displayed in reverse.
2. Change the setting using the cursor up/down keys.
Display Description Setting range Initial setting
200dpi Auxiliary scanning magnification -50 to +50 0
at the time of resolution 200 dpi
300dpi Auxiliary scanning magnification -50 to +50 0
at the time of resolution 300 dpi
400dpi Auxiliary scanning magnification -50 to +50 0
at the time of resolution 400 dpi
600dpi Auxiliary scanning magnification -50 to +50 0
at the time of resolution 600 dpi
3. Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.

1-4-49-2
1-4-51
2DF

Maintenance
Description
item No.
U901 Checking/clearing copy counts by paper feed locations
Description
Displays or clears copy counts by paper feed locations.
Purpose
To check the time to replace consumable parts. Also to clear the counts after replacing the consumable parts.
Method
1. Press the start key. The counts by paper feed locations are displayed.
2. Change the screen using the cursor up/down keys.
Display Paper feed locations
BYPASS Bypass tray
FIRST Upper drawer
SECOND Lower drawer
THIRD Optional drawer 1
FORTH Optional drawer 2
LCF Optional large paper deck
DUPLEX Optional duplex unit
When an optional paper feed device is not installed, the corresponding count is not displayed.
Clearing
1. Select the count to be cleared. The selected item is displayed in reverse.
To clear the counts for all paper feed locations, press ALL on the touch panel.
2. Press the start key. The count is cleared, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.
U902 Checking/clearing finisher punch count
Description
Sets the punch limit and displays and clears the punch-hole scrap count when the optional finisher is attached.
Purpose
Sets the punch limit to notify the user of the time to collect punch-hole scrap. Also, used to manually clear the
punch-hole scrap count if a message requiring collection of punch-hole scrap is shown on the touch panel after
collection. If punch-hole scrap is collected with the copier power turned off, the punch-hole scrap count is not
cleared and consequently this problem occurs.
Start
1. Press the start key. The screen for selecting in item is displayed.
2. Select the item. The selecting an item is displayed in reverse.
Display Description Setting range Initial setting
PUNCH LIMIT Punch limit 0 to 999000 20000
(maximum number of punching times)
PUNCH COUNT Punch-hole scrap count – –
(current number of punching times)

Setting the punch limit

1. Change the setting using the numeric keys.
2. Press the start key. The value is set.
Clearing
1. Press the reset key.
2. Press the start key. The count is cleared, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.

1-4-50
 2DF

Maintenance
Description
item No.
U903 Checking/clearing the paper jam counts
Description
Displays or clears the jam counts by jam locations.
Purpose
To check the paper jam status. Also to clear the jam counts after replacing consumable parts.
Method
1. Press the start key. The jam count is displayed by jam codes.
2. Change the screen using the * or # keys.
Clearing
1. Press the reset key. Jam counts cannot be cleared individually.
2. Press the start key. The count is cleared, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.
U904 Checking/clearing the service call counts
Description
Displays or clears the service call code counts by types.
Purpose
To check the service call code status by types. Also to clear the service call code counts after replacing
consumable parts.
Method
1. Press the start key. The service call count is displayed by service call codes.
2. Change the screen using the * or # keys.
Clearing
1. Select the count to be cleared. The selected item is displayed in reverse. To clear all counts, press the reset
key.
2. Press the start key. The count is cleared. When all counts are cleared, the screen for selecting a
maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.

1-4-51
2DF

Maintenance
Description
item No.
U905 Checking/clearing counts by optional devices
Description
Displays or clears the counts of the optional DF or finisher.
Purpose
To check the use of the DF and finisher. Also to clear the counts after replacing consumable parts.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the device, the count of which is to be checked and press the start key. The count of the selected
device is displayed.
• DF
Display Description
CHANGE Original replacement count
ADF No. of single-sided originals that has passed through the DF in ADF mode
RADF No. of double-sided originals that has passed through the DF in RADF mode
• Finisher (SORTER)
Display Description
CP CNT No. of copies that has passed
STAPLE Frequency the stapler has been activated
PUNCH Frequency the punch has been activated
STACK Frequency the stacker has been activated

Clearing
1. Select the item to be cleared. The selected item is displayed in reverse.
2. Press the start key. The count is cleared.
3. To return to the screen for selecting an item, press the stop/clear key.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.
U906 Resetting partial operation control
Description
Resets the service call code for partial operation control.
Purpose
To be reset after partial operation is performed due to problems in the drawers or other sections, and the
related parts are serviced.
Method
1. Press the start key.
2. Press EXECUTE on the touch panel.
3. Press the start key to reset partial operation control. The maintenance mode is exited, and the machine
returns to the same status as when the main switch is turned on.

1-4-52
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Maintenance
Description
item No.
U908 Changing the total counter value
Description
Displays, clears and changes the total counter value.
Purpose
To check the total counter value.
Method
Press the start key. The screen for selecting an item is displayed.
Display Description
COUNT (PRINTER) The total count value at the time of printer use
COUNT (FAX) The total count value at the time of facsimile use

Clearing
1. Select the count to be cleared.
2. Press the reset key.
3. Press the start key. The value is cleared. The screen for selecting a maintenance item No. is displayed.
Setting
1. Select the count to be changed.
2. Enter a six-digit value using the numeric keys.
3. Press the start key. The value is set. The screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current total counter value, press the stop/clear key. The
screen for selecting a maintenance item No. is displayed.
U910 Clearing the black ratio data
Description
Clears the accumulated black ratio data for A4 sheets.
Purpose
To clear data as required at times such as during maintenance service.
Method
1. Press the start key.
2. Press CANCEL on the touch panel.
3. Press the start key. The accumulated black ratio data is cleared, and the screen for selecting a
maintenance item is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item is displayed.
U911 Checking/clearing copy counts by paper sizes
Description
Displays and clears the paper feed counts by paper sizes.
Purpose
To check or clear the counts after replacing consumable parts.
Method
Press the start key. The screen for the paper feed counts by paper size is displayed.
Clearing
1. Select the paper size. The selected item is displayed in reverse.
To clear all counts, press the reset key.
2. Press the start key. The count is cleared.
When clearing all counts, the screen for selecting a maintenance item is displayed.
Completion
To exit this maintenance item without changing the count, press the stop/clear key. The screen for selecting a
maintenance item is displayed.

1-4-53
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Maintenance
Description
item No.
U937 Model name setting
Description
Sets the product name to be displayed on the printer status screen, etc. when installing a printer board
(optional).
Purpose
To set the name if initialization is performed.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select the **30 or **31. The selected item is displayed in reverse.
Initial setting: **30
2. Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.
U960 Outputting the machine used circumstances list
Description
Outputs machine used circumstances list and clears the data.
Purpose
To check the machine operation situation. Also to clear the data.
Method
Press the start key.
Outputting the list
1. Select OUTPUT.
2. Press the start key to output the list.
Clearing
1. Select COUNT CLEAR.
2. Press the start key to clear the count.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
U968 Shading plate switching setting
Description
Adjusts the reference value for shading correction in accordance with the new or old type of shading plate.
Purpose
To set the value when the shading plate is replaced.
Method
Press the start key.
Setting
1. Set the preset value in accordance with the new or old type of shading plate.
New shading plate (part No.: 2BC12130): 1
Old shading plate (part No.: 35912200): 0
2. Press the start key. The setting is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.

1-4-54
 2DF

Maintenance
Description
item No.
U990 Checking/clearing the time for the exposure lamp to light
Description
Displays, clears or changes the accumulated time for the exposure lamp to light.
Purpose
To check duration of use of the exposure lamp. Also to clear the accumulated time for the lamp after
replacement.
Method
Press the start key. The accumulated time of illumination for the exposure lamp is displayed in minutes.
Clearing
1. Press the reset key.
2. Press the start key. The accumulated time is cleared, and the screen for selecting a maintenance item No.
is displayed.
Setting
1. Enter a six-digit accumulated time using the numeric keys.
2. Press the start key. The time is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the accumulated time, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.
U991 Checking/clearing the scanner count
Description
Displays or clears the scanner operation count.
Purpose
To check the status of use of the scanner.
Method
Press the start key. The screen for selecting an item is displayed.
Display Description
TOTAL SCAN COUNT Counts of scanner operation
NT SCAN COUNT Counts of network scanner operation

Clearing
1. Select the item to be cleared.
2. Press the reset key.
3. Press the start key. The count is cleared. The screen for selecting a maintenance item No. is displayed.
Setting
1. Select the item to be changed.
2. Enter a six-digit count using the numeric key.
3. Press the start key. The value is set. The screen for selecting a maintenance item No. is displayed.
Completion
To exit this maintenance item without changing the current setting, press the stop/clear key. The screen for
selecting a maintenance item No. is displayed.

1-4-54-1
1-4-55
2DF

This page is intentionally left blank.

1-4-56
 2DF

Maintenance
Description
item No.
U992 Checking or clearing the printer/fax count
Description
Displays, clears or changes the print count of the printer or fax when the optional printer board or fax unit is
installed.
Purpose
To check the frequency of use of the printer or fax.
Method
Press the start key. The screen for selecting an item is displayed.
Display Description
PRINTER COUNT Print count of the printer
FAX COUNT Print count of the fax

Clearing
1. Select the count to be cleared.
2. Press the reset key.
3. Press the start key. The count is cleared. The screen for selecting a maintenance item No. is displayed.
Setting
1. Select the item to be changed.
2. Enter a six-digit count using the numeric keys.
To clear the counts for both printer and fax, press the reset key.
3. Press the start key. The value is set.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.

1-4-57
1-4-55
2DF

Maintenance
Description
item No.
U993 Outputting a VTC-PG pattern
Description
Selects and outputs a VTC-PG pattern created in the copier.
Purpose
When performing respective image printing adjustments, used to check the machine status apart from that of
the scanner with a non-scanned output VTC-PG pattern.
Method
1. Press the start key. The screen for selecting an item is displayed.
2. Select the VTC-PG pattern to be output.

Display PG pattern to be output Purpose

PG1 • Center line adjustment

PG2 • Lateral squareness adjustment

• Magnification adjustment

PG3

3. Press the interrupt key. The copy mode screen is displayed.

4. Press the start key. A VTC-PG pattern is output.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.

1-4-58
1-4-56
 2DF

1-5-1 Paper misfeed detection

(1) Paper misfeed indication

When a paper misfeed occurs, the copier immediately stops copying and displays the jam location on the operation panel.
Paper misfeed counts sorted by the detection condition can be checked in maintenance item U903.
To remove paper jammed in the copier, open the front cover, conveying cover, side cover or drawer.
Paper misfeed detection can be reset by opening and closing the respective covers to turn safety switch 1or 2 off and on.

• Misfeed in drawer • Misfeed in bypass

Jam code 10 Jam code 14
Jam code 12 Jam code 20
Jam code 13 Jam code 23
Jam code 15
Jam code 16
Jam code 17

• Misfeed inside conveying cover • Misfeed in SRDF*

Jam code 18 Jam code 70
Jam code 21 Jam code 71
Jam code 22 Jam code 72
Jam code 73
Jam code 74
Jam code 75
Jam code 76

• Misfeed in conveying cover • Misfeed in STDF*

Jam code 30 Jam code 70
Jam code 35 Jam code 71
Jam code 40 Jam code 72
Jam code 50 Jam code 73
Jam code 51
Jam code 52
Jam code 60
Jam code 61

• Misfeed in side cover • Misfeed in built-in finisher*

Jam code 19 Jam code 81
Jam code 82
Jam code 83
Jam code 84

1-5-1
2DF

Jam code Contents See pape

10 No paper feed from the upper drawer P.1-5-4
11 No paper feed from the lower drawer P.1-5-4
12 No paper feed from large paper deck*/paper feed desk* upper drawer P.1-5-4
13 No paper feed from paper feed desk* lower drawer P.1-5-4
14 No paper feed from bypass P.1-5-5
15 Jam in large paper deck* horizontal paper conveying section P.1-5-5
16 Jam in large paper deck* horizontal paper conveying section P.1-5-5
17 Jam in large paper deck* horizontal paper conveying section P.1-5-5
18 Misfeed in copier vertical paper conveying section P.1-5-5
19 Misfeed in paper feed desk* vertical paper conveying section P.1-5-6
20 Misfeed in bypass* vertical paper conveying section P.1-5-6
21 Multiple sheets in copier paper feed section P.1-5-6
22 Multiple sheets in copier vertical conveying section P.1-5-8
23 Multiple sheets in bypass vertical conveying section P.1-5-8
30 Misfeed in registration/transfer section P.1-5-9
35 Secondary paper feed does not start P.1-5-9
40 Misfeed in fixing section P.1-5-9
50 Misfeed in eject section P.1-5-10
51 Misfeed in job separator* eject section P.1-5-10
52 Misfeed in feedshift section P.1-5-11
53 Misfeed in switchback section (switchback unit*) P.1-5-11
60 Duplex paper conveying section 1 (duplex unit*) P.1-5-12
61 Duplex paper conveying section 2 (duplex unit*) P.1-5-12
70 No original feed (SRDF*) P.1-5-13
71 An original jam in the original feed/conveying section (SRDF*) P.1-5-13
72 An original jam in the original feed section (SRDF*) P.1-5-13
73 An original jam in the original conveying section (SRDF*) P.1-5-14
74 An original jam remaining after retries (SRDF*) P.1-5-14
75 An original jam in the switchback section 1 (SRDF*) P.1-5-14
76 An original jam in the switchback section 2 (SRDF*) P.1-5-15
81 Jam between the finisher and copier (built-in finisher*) P.1-5-15
82 Intake jam (built-in finisher*) P.1-5-15
83 Jam during paper conveying for batch ejection 1 (built-in finisher*) P.1-5-15
84 Jam during paper conveying for batch ejection 2 (built-in finisher*) P.1-5-15
*Optional.

1-5-2
 2DF

(2) Paper misfeed detection conditions

;;
;
OFSW

OSBSW SRDF

DFTSW

Built-in finisher
PCSW
FSSW

ESW

Duplex
unit

DUPPCSW
DUPFCL RCL
RSW BYPFCL BYPPFCL
FCL1
FSW1
PFCL-U BYPFSW

FCL2
FSW2
PFCL-L

FCL3
FSW3
PPSENS1 PPSENS3
PPSENS2 PFCL1 PFCL2 DPFCL-U

DFCL
DFSW
DPFCL-L

Paper feed desk

Large paper deck

Figure 1-5-1

1-5-3
2DF

1. Paper feed section

• No paper feed from the upper drawer (jam code 10)
Feed switch 1 (FSW1) does not turn on within 841 ms of the upper paper feed clutch (PFCL-U) turning on; the clutch is then
successively turned off for 1 s and turned back on, but the switch again fails to turn on within 841 ms.
PFCL-U OFF
1s ON
FSW1 OFF
841 ms 841 ms
ON

Timing chart 1-5-1

• No paper feed from the lower drawer (jam code 11)

Feed switch 2 (FSW2) does not turn on within 882 ms of the lower paper feed clutch (PFCL-L) turning on; the clutch is then
successively turned off for 1 s and turned back on, but the switch again fails to turn on within 882 ms.
PFCL-L OFF
1s ON
FSW2 OFF
882 ms 882 ms
ON

Timing chart 1-5-2

• No paper feed from large paper deck* (jam code 12)

Feed switch 3 (FSW3) does not turn on within 650 ms of paper feed clutch 1 (PFCL1) turning on.
PFCL1 OFF
ON
FSW3 OFF
650 ms
ON

Timing chart 1-5-3

• No paper feed from paper feed desk* upper drawer (jam code 12)
Feed switch 3 (FSW3) does not turn on within 880 ms of the desk upper paper feed clutch (DPFCL-U) turning on; the clutch
is then successively held off for 1 s and turned back on, but the switch again fails to turn on within 880 ms.
DPFCL-U OFF
1s ON
FSW3 OFF
880 ms 880 ms
ON

Timing chart 1-5-4

• No paper feed from paper feed desk* lower drawer (jam code 13)
Desk feed switch (DFSW) does not turn on within 880 ms of the desk lower paper feed clutch (DPFCL-L) turning on; the clutch
is then successively held off for 1 s and turned back on, but the switch again fails to turn on within 880 ms.
DPFCL-L OFF
1s ON
DFSW OFF
880 ms 880 ms
ON

Timing chart 1-5-5

*Optional.

1-5-4
 2DF

• No paper feed from bypass (jam code 14)

The bypass feed switch (BYPFSW) does not turn on within 1730 ms of the bypass paper feed clutch (BYPPFCL) turning on;
the clutch is then successively held off for 1 s and turned back on, but the switch again fails to turn on within 1730 ms.
BYPPFCL OFF
1s ON
BYPFSW OFF
1730 ms 1730 ms
ON

Timing chart 1-5-6

• Jam in large paper deck* horizontal paper conveying section (jam code 15)
Paper path sensor 3 (PPSENS3) does not turn on within 290 ms of the paper feed clutch 2 (PFCL2) turning on.
PFCL2 OFF
ON
PPSENS3 OFF
290 ms
ON

Timing chart 1-5-7

• Jam in large paper deck* horizontal paper conveying section (jam code 16)
Paper path sensor 2 (PPSENS2) does not turn on within 310 ms of the paper path sensor 3 (PPSENS3) turning on.
PPSENS3 OFF
ON
PPSENS2 OFF
310 ms
ON

Timing chart 1-5-8

• Jam in large paper deck* horizontal paper conveying section (jam code 17)
Paper path sensor 1 (PPSENS1) does not turn on within 190 ms of the paper path sensor 2 (PPSENS2) turning on.
PPSENS2 OFF
ON
PPSENS1 OFF
190 ms
ON

Timing chart 1-5-9

• Misfeed in copier vertical paper conveying section (jam code 18)

The registration switch (RSW) does not turn on within 936 ms of feed switch 1 (FSW1) turning on.
FSW1 OFF
ON
RSW OFF
936 ms
ON

Timing chart 1-5-10

*Optional.

1-5-5
2DF

Feed switch 1 (FSW1) does not turn on within 1079 ms of feed switch 2 (FSW2) turning on.
FSW2 OFF
ON
FSW1 OFF
1079 ms
ON

Timing chart 1-5-11

Feed switch 2 (FSW2) does not turn on within 1203 ms of feed switch 3 (FSW3) turning on.
FSW3 OFF
ON
FSW2 OFF
1203 ms
ON

Timing chart 1-5-12

• Misfeed in paper feed desk* vertical paper conveying section (jam code 19)
Feed switch 3 (FSW3) does not turn on within 888 ms of the desk feed switch (DFSW) turning on.
DFSW OFF
ON
FSW3 OFF
888 ms
ON

Timing chart 1-5-13

• Misfeed in bypass* vertical paper conveying section (jam code 20)

The registration switch (RSW) does not turn on within 3932 ms of the bypass feed switch (BYPFSW) turning on.
BYPFSW OFF
ON
RSW OFF
3932 ms
ON

Timing chart 1-5-14

• Multiple sheets in copier paper feed section (jam code 21)

Feed switch 1 (FSW1) does not turn off within the time required to convey the length of the used paper size plus 1123 ms
of turning on.
FSW1 Paper size + 1123 ms OFF
ON

Timing chart 1-5-15

Feed switch 2 (FSW2) does not turn off within the time required to convey the length of the used paper size plus 1123 ms
of turning on.
FSW2 Paper size + 1123 ms OFF
ON

Timing chart 1-5-16

*Optional.

1-5-6
 2DF

Feed switch 3 (FSW3) does not turn off within the time required to convey the length of the used paper size plus 635 ms of
turning on.
FSW3 Paper size + 635 ms OFF
ON

Timing chart 1-5-17

The desk feed switch (DFSW) does not turn off within the time required to convey the length of the used paper size plus 635
ms of turning on.
DFSW Paper size + 635 ms OFF
ON

Timing chart 1-5-18

The bypass feed switch (BYPFSW) does not turn off within the time required to convey the length of the used paper size plus
1123 ms of turning on.
BYPFSW Paper size + 1123 ms OFF
ON

Timing chart 1-5-19

Feed switch 1 (FSW1) does not turn off within 841 ms of the upper paper feed clutch (PFCL-U) turning on.

PFCL-U OFF
ON
FSW1 OFF
ON
841 ms

Timing chart 1-5-20

Feed switch 2 (FSW2) does not turn off within 882 ms of the lower paper feed clutch (PFCL-L) turning on.

PFCL-L OFF
ON
FSW2 OFF
ON
882 ms

Timing chart 1-5-21

The bypass feed switch (BYPFSW) does not turn off within 1730 ms of the bypass paper feed clutch (BYPPFCL) turning on.

BYPPFCL OFF
ON
BYPFSW OFF
ON
1730 ms

Timing chart 1-5-22

*Optional.

1-5-7
2DF

• Multiple sheets in copier vertical conveying section (jam code 22)

Feed switch 1 (FSW1) does not turn off within 1910 ms of feed switch 2 (FSW2) turning off.
FSW2 OFF
1910 ms ON
FSW1 OFF
ON

Timing chart 1-5-23

Feed switch 2 (FSW2) does not turn off within 1203 ms of feed switch 3 (FSW3) turning off.
FSW3 OFF
1203 ms ON
FSW2 OFF
ON

Timing chart 1-5-24

Feed switch 1 (FSW1) does not turn off within 1910 ms of feed switch 2 (FSW2) turning on.

FSW2 OFF
ON
FSW1 OFF
ON
1910 ms

Timing chart 1-5-25

Feed switch 2 (FSW2) does not turn off within 1203 ms of feed switch 3 (FSW3) turning on.

FSW3 OFF
ON
FSW2 OFF
ON
1203 ms

Timing chart 1-5-26

• Multiple sheets in bypass vertical conveying section (jam code 23)

The registration switch (RSW) does not turn off within 1510 ms of the bypass feed switch (BYPFSW) turning off.
BYPFSW OFF
1505 ms ON
RSW OFF
ON

Timing chart 1-5-27

1-5-8
 2DF

The registration switch (RSW) does not turn off within 1505 ms of the bypass feed switch (BYPFSW) turning on.

BYPFSW OFF
ON
RSW OFF
ON
1505 ms

Timing chart 1-5-28

2. Paper conveying section

• Misfeed in registration/transfer section (jam code 30)
The registration switch (RSW) does not turn off within 1657 ms of feed switch 1 (FSW1) turning off.
FSW1 OFF
1657 ms ON
RSW OFF
ON

Timing chart 1-5-29

The registration switch (RSW) does not turn off within 1657 ms of feed switch 1 (FSW1) turning on.

FSW1 OFF
ON
RSW OFF
ON
1657 ms

Timing chart 1-5-30

• Secondary paper feed does not start. (jam code 35)

Secondary paper feed does not start within 30 s of arrival of paper at the registration section.

3. Fixing section
• Misfeed in fixing section (jam code 40)
The eject switch (ESW) does not turn on within 2898 ms of the registration clutch (RCL) turning on.
RCL OFF
ON
ESW OFF
2898 ms
ON

Timing chart 1-5-31

The feedshift switch (FSSW) does not turn on within 2983 ms of the registration clutch (RCL) turning on.
RCL OFF
ON
FSSW OFF
2983 ms
ON

Timing chart 1-5-32

1-5-9
2DF

4. Eject section
• Misfeed in eject section (jam code 50)
The eject switch (ESW) does not turn off within 2898 ms of the registration switch (RSW) turning off.
RSW OFF
2898 ms ON
ESW OFF
ON

Timing chart 1-5-33

The eject switch (ESW) does not turn off within 2898 ms of the registration clutch (RCL) turning on.

RCL OFF
ON
ESW OFF
ON
2898 ms

Timing chart 1-5-34

• Misfeed in job separator* eject section (jam code 51)

The job separator eject switch (JBESW) does not turn on within 2050 ms of the feedshift switch (FSSW) turning on.
FSSW OFF
ON
JBESW OFF
2050 ms
ON

Timing chart 1-5-35

The job separator eject switch (JBESW) does not turn off within 2050 ms of the feedshift switch (FSSW) turning off.
FSSW OFF
2050 ms ON
JBESW OFF
ON

Timing chart 1-5-36

The job separator eject switch (JBESW) does not turn off within 2050 ms of the feedshift switch (FSSW) turning on.

FSSW OFF
ON
JBESW OFF
ON
2050 ms

Timing chart 1-5-37

*Optional.

1-5-10
 2DF

5. Feedshift section
• Misfeed in feedshift section (jam code 52)
The feedshift switch (FSSW) does not turn on within 873 ms of the start of eject motor (EM) reverse rotation.
EM OFF
Fwd. rotation Rev. rotation
ON
FSSW OFF
873 ms
ON

Timing chart 1-5-38

During paper switchback operation, the feedshift switch (FSSW) does not turn off within the time required to convey the length
of the used paper size plus 317 ms of turning on.
FSSW Paper size + 317 ms OFF
ON

Timing chart 1-5-39

The feedshift switch (FSSW) does not turn off within 2898 ms of the registration switch (RSW) turning off.
RSW OFF
2898 ms ON
FSSW OFF
ON

Timing chart 1-5-40

The feedshift switch (FSSW) does not turn off within 2898 ms of the registration clutch (RCL) turning on.

RCL OFF
ON
FSSW OFF
ON
2898 ms

Timing chart 1-5-41

6. Switchback unit*
• Misfeed in switchback section (jam code 53)
The switchback eject switch (SBESW) does not turn off within 1421 ms (2797 ms) of the feedshift switch (FSSW) turning on.

FSSW OFF
ON
SBESW OFF
ON

1421(2797) ms

The value in the parentheses indicates

the value in switchback operation.

Timing chart 1-5-42

*Optional.

1-5-11
2DF

The switchback eject switch (SBESW) does not turn on within 1421 ms (2797 ms) of the feedshift switch (FSSW) turning on.

FSSW OFF
ON
SBESW OFF
ON
1421(2797) ms

The value in the parentheses indicates

the value in switchback operation.

Timing chart 1-5-43

The switchback eject switch (SBESW) does not turn off within 1421 ms (2797 ms) of the feedshift switch (FSSW) turning off.

FSSW OFF
ON
SBESW OFF
ON

1421(2797) ms
The value in the parentheses indicates
the value in switchback operation.

Timing chart 1-5-44

7. Duplex section*
• Duplex paper conveying section 1 (jam code 60)
The duplex paper conveying switch (DUPPCSW) does not turn on within 1285 ms of the feedshift switch (FSSW) turning on.
FSSW OFF
ON
DUPPCSW OFF
1285 ms
ON

Timing chart 1-5-45

The duplex paper conveying switch (DUPPCSW) does not turn off within 1285 ms of the feedshift switch (FSSW) turning off.
FSSW OFF
1285 ms ON
DUPPCSW OFF
ON

Timing chart 1-5-46

• Duplex paper conveying section 2 (jam code 61)

Feed switch 1 (FSW1) does not turn on within 1126 ms of the duplex paper conveying switch (DUPPCSW) turning on.
DUPPCSW OFF
ON
FSW1 OFF
1126 ms
ON

Timing chart 1-5-47

*Optional.

1-5-12
 2DF

Feed switch 1 (FSW1) does not turn off within 1126 ms of the duplex paper conveying switch (DUPPCSW) turning off.
DUPPCSW OFF
1126 ms ON
FSW1 OFF
ON

Timing chart 1-5-48

8. SRDF*
• No original feed (jam code 70)
When the DF START signal is received, switches other than the original set switch (OSSW) and original size length switch
(OSLSW) on the contact glass are on.

• No original feed (jam code 70)

During the primary feed of the first original in the single-sided or double-sided original mode, the original feed switch (OFSW)
does not turn on within 800 ms of the original feed motor (OFM) turning on.

• No original feed (jam code 70)

During the primary feed of the second or later original in the single-sided or double-sided original mode, the original feed switch
(OFSW) does not turn on within 800 ms of the start of forward rotation of the original feed motor (OFM).
OFM OFF
ON (Fwd.)
OFSW OFF
800 ms
ON

Timing chart 1-5-49

• An original jam in the original feed/conveying section (jam code 71)

During the secondary original feed in the single-sided original mode, the DF timing switch (DFTSW) does not turn on within
967 ms of the start of reverse rotation of the original feed motor (OFM). Alternatively, during continuous original feed in single-
sided original mode, the DF timing switch (DFTSW) does not turn on for the second time under the above conditions.
OFM OFF
ON (Rev.)
DFTSW OFF
967 ms
ON

Timing chart 1-5-50

• An original jam in the original feed section (jam code 72)

During the secondary original feed in the single-sided original mode, the original feed switch (OFSW) does not turn off within
1654 ms of the DF timing switch (DFTSW) turning on.
OFSW 1654 ms OFF
ON
DFTSW OFF
ON

Timing chart 1-5-51

*Optional.

1-5-13
2DF

• An original jam in the original feed section (jam code 72)

During original switchback operation in the double-sided original mode, the original feed switch (OFSW) remains on when
the original switchback switch (OSBSW) turns off.
OFF
OSBSW ON
OFF
OFSW ON

Timing chart 1-5-52

• An original jam in the original conveying section (jam code 73)

During the secondary original feed in the single-sided or double-sided original mode, the DF timing switch (DFTSW) does not
turn off within 2399 ms of turning on.
DFTSW 2399 ms OFF
ON

Timing chart 1-5-53

• An original jam in the original conveying section (jam code 73)

In the single-sided or double-sided original mode, the DF timing switch (DFTSW) turns off within 474 ms of turning on.
DFTSW 474 ms OFF
ON

Timing chart 1-5-54

• An original jam remaining after retries (jam code 74)

In the single-sided or double-sided original mode, secondary original feed does not start after 5 retries.

• An original jam in the switchback section 1 (jam code 75)

During the switchback operation of an original in the double-sided original mode, the original switchback switch (OSBSW)
does not turn off within 7040 ms of turning on.
OSBSW 7040 ms OFF
ON

Timing chart 1-5-55

• An original jam in the switchback section 1 (jam code 75)

During the secondary original feed in the double-sided original mode, the DF timing switch (DFTSW) does not turn on within
433 ms of the original conveying motor (OCM) turning on.
OCM OFF
ON
DFTSW OFF
433 ms
ON

Timing chart 1-5-56

1-5-14
 2DF

• An original jam in the switchback section 2 (jam code 76)

While scanning the first face (reverse face) of the original in the double-sided original mode, the original switchback switch
(OSBSW) does not turn on within 770 ms of the DF timing switch (DFTSW) turning on.
DFTSW OFF
ON
OSBSW OFF
770 ms
ON

Timing chart 1-5-57

• An original jam in the original switchback section 2 (jam code 76)

During the switchback operation of the second or later original in the double-sided original mode, the original switchback
switch (OSBSW) remains off when the trailing edge of the preceding original turns the DF timing switch (DFTSW) off.

9. Built-in finisher*
• Jam between the finisher and copier (jam code 81)
The paper conveying switch does not turn on within 1550 ms of the signal requesting paper ejection is output from the copier.

• Intake jam (jam code 82)

During paper intake from the copier, the paper conveying switch (PCSW) does not turn off within 1960 to 3480 ms (depending
on paper size) of paper conveying switch (PCSW) turning on.
1960 to 3480 ms Off
PCSW
On

Timing chart 1-5-58

• Jam during paper conveying for batch ejection 1 (jam code 83)
When ejection a stack of paper, the paper conveying switch (PCSW) does not turn on within 1590 ms of the paper conveying
motor (PCM) turning on.

Off
PCM
On
Off
PCSW 1590 ms
On

Timing chart 1-5-59

• Jam during paper conveying for batch ejection 2 (jam code 84)
When ejection a stack of paper, the paper conveying switch (PCSW) does not turn off within 2260 to 3190 ms (varies
depending on the paper size) of the paper conveying motor (PCM) turning on.

2260 to 3190 ms Off

PCSW
On

Timing chart 1-5-60

*Optional.

1-5-15
2DF

(3) Paper misfeeds

Problem Causes/check procedures Corrective measures
(1) A piece of paper torn from Check visually and remove it, if any.
A paper jam in the copy paper is caught
paper feed, convey- around feed switch 1/2/3,
ing or eject section registration switch, eject
is indicated as soon switch or feedshift switch.
as the main switch
Defective feed switch 1. Run maintenance item U031 and turn feed switch 1 on and off
is turned on.
manually. Replace feed switch 1 if indication of the correspond-
ing switch on the operation panel is not displayed in reverse.

Defective feed switch 2. Run maintenance item U031 and turn feed switch 2 on and off
manually. Replace feed switch 2 if indication of the correspond-
ing switch on the operation panel is not displayed in reverse.

Defective feed switch 3. Run maintenance item U031 and turn feed switch 3 on and off
manually. Replace feed switch 3 if indication of the correspond-
ing switch on the operation panel is not displayed in reverse.

Defective registration Run maintenance item U031 and turn the registration switch on
switch. and off manually. Replace the registration switch if indication of
the corresponding switch on the operation panel is not displayed
in reverse.

Defective eject switch. Run maintenance item U031 and turn the eject switch on and off
manually. Replace the eject switch if indication of the corre-
sponding switch on the operation panel is not displayed in re-
verse.

Defective feedshift switch. Run maintenance item U031 and turn the feedshift switch on
and off manually. Replace the feedshift switch if indication of the
corresponding switch on the operation panel is not displayed in
reverse.

(2) Paper in the upper drawer Change the paper.

A paper jam in the is extremely curled.
paper feed section
Check if the upper paper Check visually and replace any deformed pulleys.
is indicated during
feed pulley, separation
copying (no paper
pulley or forwarding pulley
feed from upper
of the upper drawer are
drawer).
deformed.
Jam code 10
Broken feed switch 1 ac- Check visually and replace feed switch 1 if its actuator is broken.
tuator.

Defective feed switch 1. Run maintenance item U031 and turn feed switch 1 on and off
manually. Replace feed switch 1 if indication of the correspond-
ing switch on the operation panel is not displayed in reverse.

Check if the upper paper Run maintenance item U032 and select the upper paper feed
feed clutch malfunctions. clutch on the operation panel to be turned on and off. Check the
status and remedy if necessary.

Electrical problem with the Check (see page 1-5-53).

upper paper feed clutch.

1-5-16
 2DF

Problem Causes/check procedures Corrective measures

(3) Paper in the lower drawer Change the paper.
A paper jam in the is extremely curled.
paper feed section
Check if the lower paper Check visually and replace any deformed pulleys.
is indicated during
feed pulley, separation
copying (no paper
pulley or forwarding pulley
feed from lower
of the lower drawer are
drawer).
deformed.
Jam code 11
Broken feed switch 2 ac- Check visually and replace feed switch 2 if its actuator is broken.
tuator.

Defective feed switch 2. Run maintenance item U031 and turn feed switch 2 on and off
manually. Replace feed switch 2 if indication of the correspond-
ing switch on the operation panel is not displayed in reverse.

Check if the lower paper Run maintenance item U032 and select the lower paper feed
feed clutch malfunctions. clutch on the operation panel to be turned on and off. Check the
status and remedy if necessary.

Electrical problem with the Check (see page 1-5-53).

lower paper feed clutch.

(4) Paper in the large paper Change the paper.

A paper jam in the deck is extremely curled.
paper feed section
Broken feed switch 3 ac- Check visually and replace feed switch 3 if its actuator is broken.
is indicated during
tuator.
copying (no paper
feed from large pa- Defective feed switch 3. Run maintenance item U031 and turn feed switch 3 on and off
per deck*). manually. Replace feed switch 3 if indication of the correspond-
Jam code 12 ing switch on the operation panel is not displayed in reverse.

Check if paper feed clutch Run maintenance item U247 and select paper feed clutch 1 or 2
1 and 2 malfunctions. on the operation panel to be turned on and off. Check the status
and remedy if necessary.

Electrical problem with pa- Check.

per feed clutch 1 and 2.

Check if the deck feed Run maintenance item U247 and select the deck feed clutch on
clutch malfunctions. the operation panel to be turned on and off. Check the status
and remedy if necessary.

Electrical problem with the Check.

deck feed clutch.

(5) Paper in the paper feed Change the paper.

A paper jam in the desk upper drawer is ex-
paper feed section tremely curled.
is indicated during
Check if the paper feed Check visually and replace any deformed pulleys.
copying (no paper
pulley, separation pulley or
feed from paper
forwarding pulley of the
feed desk* upper
paper feed desk upper
drawer).
drawer are deformed.
Jam code 12
Broken feed switch 3 ac- Check visually and replace feed switch 3 if its actuator is broken.
tuator.

Defective feed switch 3. Run maintenance item U031 and turn feed switch 3 on and off
manually. Replace feed switch 3 if indication of the correspond-
ing switch on the operation panel is not displayed in reverse.

*Optional.

1-5-17
2DF

Problem Causes/check procedures Corrective measures

(5) Check if the desk upper Run maintenance item U247 and select the desk upper paper
A paper jam in the paper feed clutch malfunc- feed clutch on the operation panel to be turned on and off.
paper feed section tions. Check the status and remedy if necessary.
is indicated during
Electrical problem with the Check.
copying (no paper
desk upper paper feed
feed from paper
clutch.
feed desk* upper
drawer).
Jam code 12

(6) Paper in the paper feed Change the paper.

A paper jam in the desk lower drawer is ex-
paper feed section tremely curled.
is indicated during
Check if the paper feed Check visually and replace any deformed pulleys.
copying (no paper
pulley, separation pulley or
feed from paper
forwarding pulley of the
feed desk* lower
paper feed desk lower
drawer).
drawer are deformed.
Jam code 13
Broken desk feed switch Check visually and replace desk feed switch if its actuator is bro-
actuator. ken.

Defective desk feed With 5 V DC present at CN2-8 on the desk main PCB, check if
switch. CN2-7 on the desk main PCB remains low when the desk feed
switch is turned on and off. If it does, replace the desk feed
switch.

Check if the desk lower Run maintenance item U247 and select the desk lower paper
paper feed clutch malfunc- feed clutch on the operation panel to be turned on and off.
tions. Check the status and remedy if necessary.

Electrical problem with the Check.

desk lower paper feed
clutch.

(7) Paper on the bypass table Change the paper.

A paper jam in the is extremely curled.
paper feed section
Check if the bypass paper Check visually and replace any deformed pulleys.
is indicated during
feed pulley, separation
copying (no paper
pulley or forwarding pulley
feed from bypass).
of the bypass are de-
Jam code 14
formed.

Broken bypass feed switch Check visually and replace bypass feed switch if its actuator is
actuator. broken.

Defective bypass feed Run maintenance item U031 and turn the bypass feed switch on
switch. and off manually. Replace the bypass feed switch if indication of
the corresponding switch on the operation panel is not displayed
in reverse.

Check if the bypass paper Run maintenance item U032 and select the bypass paper feed
feed clutch malfunctions. clutch on the operation panel to be turned on and off. Check the
status and remedy if necessary.

Electrical problem with the Check (see page 1-5-54).

bypass paper feed clutch.

*Optional.

1-5-18
 2DF

Problem Causes/check procedures Corrective measures

(8) Paper in the large paper Change the paper.
A paper jam in the deck is extremely curled.
paper feed section
Check if the paper side Check visually and replace.
is indicated during
guides are deformed.
copying (jam in
large paper deck* Defective paper path sen- With 5 V DC present at CN6-12 on the deck main PCB, check if
horizontal paper sor 3. CN6-11 on the deck main PCB remains low when paper path
conveying section). sensor 3 is turned on and off. If it does, replace paper path sen-
Jam code 15 sor 3.

Check if paper feed clutch Run maintenance item U247 and select paper feed clutch 2 on
2 malfunctions. the operation panel to be turned on and off. Check the status
and remedy if necessary.

Electrical problem with pa- Check.

per feed clutch 2.

(9) Paper in the large paper Change the paper.

A paper jam in the deck is extremely curled.
paper feed section
Check if the paper side Check visually and replace.
is indicated during
guides are deformed.
copying (jam in
large paper deck* Defective paper path sen- With 5 V DC present at CN6-9 on the deck main PCB, check if
horizontal paper sor 2. CN6-8 on the deck main PCB remains low when paper path
conveying section). sensor 2 is turned on and off. If it does, replace paper path sen-
Jam code 16 sor 2.

Check if paper feed clutch Run maintenance item U247 and select paper feed clutch 1 on
1 malfunctions. the operation panel to be turned on and off. Check the status
and remedy if necessary.

Electrical problem with pa- Check.

per feed clutch 1.

(10) Paper in the large paper Change the paper.

A paper jam in the deck is extremely curled.
paper feed section
Check if the paper side Check visually and replace.
is indicated during
guides are deformed.
copying (jam in
large paper deck* Defective paper path sen- With 5 V DC present at CN6-6 on the deck main PCB, check if
horizontal paper sor 1. CN6-5 on the deck main PCB remains low when paper path
conveying section). sensor 1 is turned on and off. If it does, replace paper path sen-
Jam code 17 sor 1.

Check if the deck feed Run maintenance item U247 and select the deck feed clutch on
clutch malfunctions. the operation panel to be turned on and off. Check the status
and remedy if necessary.

Electrical problem with the Check.

deck feed clutch.

(11) Broken feed switch 1 ac- Check visually and replace feed switch 1 if its actuator is broken.
A paper jam in the tuator.
paper feed section
Defective feed switch 1. Run maintenance item U031 and turn feed switch 1 on and off
is indicated during
manually. Replace feed switch 1 if indication of the correspond-
copying (jam in
ing switch on the operation panel is not displayed in reverse.
copier vertical paper
conveying section). Broken feed switch 2 ac- Check visually and replace feed switch 2 if its actuator is broken.
Jam code 18 tuator.

*Optional.

1-5-19
2DF

Problem Causes/check procedures Corrective measures

(11) Defective feed switch 2. Run maintenance item U031 and turn feed switch 2 on and off
A paper jam in the manually. Replace feed switch 2 if indication of the correspond-
paper feed section ing switch on the operation panel is not displayed in reverse.
is indicated during
Broken feed switch 3 ac- Check visually and replace feed switch 3 if its actuator is broken.
copying (jam in
tuator.
copier vertical paper
conveying section). Defective feed switch 3. Run maintenance item U031 and turn feed switch 3 on and off
Jam code 18 manually. Replace feed switch 3 if indication of the correspond-
ing switch on the operation panel is not displayed in reverse.

Defective registration Run maintenance item U031 and turn the registration switch on
switch. and off manually. Replace the switch if indication of the corre-
sponding switch on the operation panel is not displayed in re-
verse.

Check if the feed pulleys Check and repair if necessary.

and feed roller are de-
formed.

(12) Broken feed switch 3 ac- Check visually and replace feed switch 3 if its actuator is broken.
A paper jam in the tuator.
paper feed section
Defective feed switch 3. Run maintenance item U031 and turn feed switch 3 on and off
is indicated during
manually. Replace feed switch 3 if indication of the correspond-
copying (jam in pa-
ing switch on the operation panel is not displayed in reverse.
per feed desk* verti-
cal conveying sec- Broken desk feed switch Check visually and replace desk feed switch if its actuator is bro-
tion). actuator. ken.
Jam code 19
Defective desk feed With 5 V DC present at CN2-8 on the desk main PCB, check if
switch. CN2-7 on the desk main PCB remains low when the desk feed
switch is turned on and off. If it does, replace the desk feed
switch.

(13) Broken bypass feed switch Check visually and replace the bypass feed switch if its actuator
A paper jam in the actuator. is broken.
paper feed section
Defective bypass feed Run maintenance item U031 and turn the bypass feed switch on
is indicated during
switch. and off manually. Replace the bypass feed switch if indication of
copying (jam in by-
the corresponding switch on the operation panel is not displayed
pass conveying sec-
in reverse.
tion).
Jam code 20 Defective registration Run maintenance item U031 and turn the registration switch on
switch. and off manually. Replace the registration switch if indication of
the corresponding switch on the operation panel is not displayed
in reverse.

(14) Broken feed switch 1 ac- Check visually and replace feed switch 1 if its actuator is broken.
A paper jam in the tuator.
paper feed section
Defective feed switch 1. Run maintenance item U031 and turn feed switch 1 on and off
is indicated during
manually. Replace feed switch 1 if indication of the correspond-
copying (multiple
ing switch on the operation panel is not displayed in reverse.
sheets in copier pa-
per feed section). Broken feed switch 2 ac- Check visually and replace feed switch 2 if its actuator is broken.
Jam code 21 tuator.

Defective feed switch 2. Run maintenance item U031 and turn feed switch 2 on and off
manually. Replace feed switch 2 if indication of the correspond-
ing switch on the operation panel is not displayed in reverse.

Broken feed switch 3 ac- Check visually and replace feed switch 3 if its actuator is broken.
tuator.
*Optional.

1-5-20
 2DF

Problem Causes/check procedures Corrective measures

(14) Defective feed switch 3. Run maintenance item U031 and turn feed switch 3 on and off
A paper jam in the manually. Replace feed switch 3 if indication of the correspond-
paper feed section ing switch on the operation panel is not displayed in reverse.
is indicated during
Broken desk feed switch* Check visually and replace the desk feed switch if its actuator is
copying (multiple
actuator. broken.
sheets in copier pa-
per feed section). Defective desk feed With 5 V DC present at CN2-8 on the desk main PCB, check if
Jam code 21 switch*. CN2-7 on the desk main PCB remains low when the desk feed
switch is turned on and off. If it does, replace the desk feed
switch.

Broken bypass feed switch Check visually and replace the bypass feed switch if its actuator
actuator. is broken.

Defective bypass feed Run maintenance item U031 and turn the bypass feed switch on
switch. and off manually. Replace the bypass feed switch if indication of
the corresponding switch on the operation panel is not displayed
in reverse.

Check if the upper paper Run maintenance item U032 and select the upper paper feed
feed clutch malfunctions. clutch on the operation panel to be turned on and off. Check the
status and remedy if necessary.

Electrical problem with the Check (see page 1-5-53).

upper paper feed clutch.

Check if the lower paper Run maintenance item U032 and select the lower paper feed
feed clutch malfunctions. clutch on the operation panel to be turned on and off. Check the
status and remedy if necessary.

Electrical problem with the Check (see page 1-5-53).

lower paper feed clutch.

Check if the bypass paper Run maintenance item U032 and select the bypass feed clutch
feed clutch malfunctions. on the operation panel to be turned on and off. Check the status
and remedy if necessary.

Electrical problem with the Check (see page 1-5-54).

bypass paper feed clutch.

Check if the feed pulleys Check and repair if necessary.

and feed roller are de-
formed.

(15) Broken feed switch 1 ac- Check visually and replace feed switch 1 if its actuator is broken.
A paper jam in the tuator.
paper feed section
Defective feed switch 1. Run maintenance item U031 and turn feed switch 1 on and off
is indicated during
manually. Replace the switch if indication of the corresponding
copying (multiple
switch on the operation panel is not displayed in reverse.
sheets in copier ver-
tical conveying sec- Broken feed switch 2 ac- Check visually and replace feed switch 2 if its actuator is broken.
tion). tuator.
Jam code 22
Defective feed switch 2. Run maintenance item U031 and turn feed switch 2 on and off
manually. Replace feed switch 2 if indication of the correspond-
ing switch on the operation panel is not displayed in reverse.

Broken feed switch 3 ac- Check visually and replace feed switch 3 if its actuator is broken.
tuator.

*Optional.

1-5-21
2DF

Problem Causes/check procedures Corrective measures

(15) Defective feed switch 3. Run maintenance item U031 and turn feed switch 3 on and off
A paper jam in the manually. Replace feed switch 3 if indication of the correspond-
paper feed section ing switch on the operation panel is not displayed in reverse.
is indicated during
Check if the feed pulleys Check and repair if necessary.
copying (multiple
and feed roller are de-
sheets in copier ver-
formed.
tical conveying sec-
tion).
Jam code 22

(16) Broken bypass feed switch Check visually and replace the bypass feed switch if its actuator
A paper jam in the actuator. is broken.
paper feed section
Defective bypass feed Run maintenance item U031 and turn the bypass feed switch on
is indicated during
switch. and off manually. Replace the bypass feed switch if indication of
copying (multiple
the corresponding switch on the operation panel is not displayed
sheets in bypass
in reverse.
conveying section).
Jam code 23 Defective registration Run maintenance item U031 and turn the registration switch on
switch. and off manually. Replace the registration switch if indication of
the corresponding switch on the operation panel is not displayed
in reverse.

(17) Broken feed switch 1 ac- Check visually and replace feed switch 1 if its actuator is broken.
A paper jam in the tuator.
paper conveying
Defective feed switch 1. Run maintenance item U031 and turn feed switch 1 on and off
section is indicated
manually. Replace feed switch 1 if indication of the correspond-
during copying (jam
ing switch on the operation panel is not displayed in reverse.
in registration/trans-
fer section). Defective registration Run maintenance item U031 and turn the registration switch on
Jam code 30 switch. and off manually. Replace the registration switch if indication of
the corresponding switch on the operation panel is not displayed
in reverse.

(18) Defective registration Run maintenance item U031 and turn the registration switch on
A paper jam in the switch. and off manually. Replace the switch if indication of the corre-
paper conveying sponding switch on the operation panel is not displayed in re-
section is indicated verse.
during copying
Check if the registration Run maintenance item U032 and select the registration clutch
Jam code 35
clutch malfunctions. on the operation panel to be turned on and off. Check the status
and remedy if necessary.

Electrical problem with the Check (see page 1-5-54).

registration clutch.

(19) Broken eject switch actua- Check visually and replace the eject switch if its actuator is bro-
A paper jam in the tor. ken.
fixing section is indi-
Defective eject switch. Run maintenance item U031 and turn the eject switch on and off
cated during copy-
manually. Replace the eject switch if indication of the corre-
ing (jam in fixing
sponding switch on the operation panel is not displayed in re-
section).
verse.
Jam code 40
Broken feedshift switch Check visually and replace the feedshift switch if its actuator is
actuator. broken.

Defective feedshift switch. Run maintenance item U031 and turn the feedshift switch on
and off manually. Replace the feedshift switch if indication of the
corresponding switch on the operation panel is not displayed in
reverse.

1-5-22
 2DF

Problem Causes/check procedures Corrective measures

(19) Check if the registration Run maintenance item U032 and select the registration clutch
A paper jam in the clutch malfunctions. on the operation panel to be turned on and off. Check the status
fixing section is indi- and remedy if necessary.
cated during copy-
Electrical problem with the Check (see page 1-5-54).
ing (jam in fixing
registration clutch.
section).
Jam code 40

(20) Broken eject switch actua- Check visually and replace the eject switch if its actuator is bro-
A paper jam in the tor. ken.
eject section is indi-
Defective eject switch. Run maintenance item U031 and turn the eject switch on and off
cated during copy-
manually. Replace the eject switch if indication of the corre-
ing (jam in eject
sponding switch on the operation panel is not displayed in re-
section).
verse.
Jam code 50

(21) Broken feedshift switch Check visually and replace the feedshift switch if its actuator is
A paper jam in the actuator. broken.
eject section is indi-
Defective feedshift switch. Run maintenance item U031 and turn the feedshift switch on
cated during copy-
and off manually. Replace the feedshift switch if indication of the
ing (jam in job sepa-
corresponding switch on the operation panel is not displayed in
rator* eject section).
reverse.
Jam code 51
Broken job separator eject Check visually and replace the job separator eject switch if its
switch actuator. actuator is broken.

Defective job separator Run maintenance item U031 and turn the job separator eject
eject switch. switch on and off manually. Replace the switch if indication of
the corresponding switch on the operation panel is not displayed
in reverse.

(22) Check if the feedshift sole- Run maintenance item U033 and select the feedshift solenoid on
A paper jam in the noid malfunctions. the operation panel to be turned on and off. Check the status
feedshift section is and remedy if necessary.
indicated during
Electrical problem with the Check (see page 1-5-54).
copying (jam in
feedshift solenoid.
feedshift section).
Jam code 52 Broken feedshift switch Check visually and replace the feedshift switch if its actuator is
actuator. broken.

Defective feedshift switch. Run maintenance item U031 and turn the feedshift switch on
and off manually. Replace the feedshift switch if indication of the
corresponding switch on the operation panel is not displayed in
reverse.

Defective registration Run maintenance item U031 and turn the registration switch on
switch. and off manually. Replace the registration switch if indication of
the corresponding switch on the operation panel is not displayed
in reverse.

Check if the registration Run maintenance item U032 and select the registration clutch
clutch malfunctions. on the operation panel to be turned on and off. Check the status
and remedy if necessary.

Electrical problem with the Check (see page 1-5-54).

registration clutch.

*Optional.

1-5-23
2DF

Problem Causes/check procedures Corrective measures

(23) Broken feedshift switch Check visually and replace the feedshift switch if its actuator is
A paper jam in the actuator. broken.
switchback section
Defective feedshift switch. Run maintenance item U031 and turn the feedshift switch on
is indicated during
and off manually. Replace the feedshift switch if indication of the
copying (jam in
corresponding switch on the operation panel is not displayed in
switchback unit*).
reverse.
Jam code 53
Broken switchback eject Check visually and replace the switchback eject switch if its ac-
switch actuator. tuator is broken.

Defective switchback eject With 5 V DC present at CN5-2 on the switchback unit main PCB,
switch. check if CN5-4 on the switchback unit main PCB remains low
when the switchback eject switch is turned on and off. If it does,
replace the switchback eject switch.

(24) Broken feedshift switch Check visually and replace the feedshift switch if its actuator is
A paper jam in the actuator. broken.
duplex section is
Defective feedshift switch. Run maintenance item U031 and turn the feedshift switch on
indicated during
and off manually. Replace the switch if indication of the corre-
copying (jam in du-
sponding switch on the operation panel is not displayed in re-
plex paper convey-
verse.
ing section 1*).
Jam code 60 Broken duplex paper con- Check visually and replace the duplex paper conveying switch if
veying switch actuator. its actuator is broken.

Defective duplex paper Run maintenance item U031 and turn the duplex paper convey-
conveying switch. ing switch on and off manually. Replace the switch if indication
of the corresponding switch on the operation panel is not dis-
played in reverse.

(25) Broken duplex paper con- Check visually and replace the duplex paper conveying switch if
A paper jam in the veying switch actuator. its actuator is broken.
duplex section is
Defective duplex convey- Run maintenance item U031 and turn the duplex paper convey-
indicated during
ing switch. ing switch on and off manually. Replace the duplex paper con-
copying (jam in du-
veying switch if indication of the corresponding switch on the op-
plex paper convey-
eration panel is not displayed in reverse.
ing section 2*).
Jam code 61 Broken feed switch 1 ac- Check visually and replace feed switch 1 if its actuator is broken.
tuator.

Defective feed switch 1. Run maintenance item U031 and turn feed switch 1 on and off
manually. Replace the switch if indication of the corresponding
switch on the operation panel is not displayed in reverse.

(26) Defective original feed Run maintenance item U244 and turn the original feed switch on
An original jams in switch. and off manually. Replace the switch if indication of the corre-
the SRDF* is indi- sponding switch on the operation panel is not displayed in re-
cated during copy- verse.
ing (no original
Check if the original feed Run maintenance item U243 and select the original feed motor
feed).
motor malfunctions. on the operation panel to be turned on and off. Check the status
Jam code 70
and remedy if necessary.

*Optional.

1-5-24
 2DF

Problem Causes/check procedures Corrective measures

(27) Defective DF timing Run maintenance item U244 and turn the DF timing switch on
An original jams in switch. and off manually. Replace the switch if indication of the corre-
the SRDF* is indi- sponding switch on the operation panel is not displayed in re-
cated during copy- verse.
ing (a jam in the
Check if the original feed Run maintenance item U243 and select the original feed motor
original feed/con-
motor malfunctions. on the operation panel to be turned on and off. Check the status
veying section).
and remedy if necessary.
Jam code 71

(28) Defective DF timing Run maintenance item U244 and turn the DF timing switch on
An original jams in switch. and off manually. Replace the switch if indication of the corre-
the SRDF* is indi- sponding switch on the operation panel is not displayed in re-
cated during copy- verse.
ing (a jam in the
Defective original feed Run maintenance item U244 and turn the original feed switch on
original feed sec-
switch. and off manually. Replace the switch if indication of the corre-
tion).
sponding switch on the operation panel is not displayed in re-
Jam code 72
verse.

Defective original switch- Run maintenance item U244 and turn the original switchback
back switch. switch on and off manually. Replace the switch if indication of
the corresponding switch on the operation panel is not displayed
in reverse.

(29) Defective DF timing Run maintenance item U244 and turn the DF timing switch on
An original jams in switch. and off manually. Replace the switch if indication of the corre-
the SRDF* is indi- sponding switch on the operation panel is not displayed in re-
cated during copy- verse.
ing (a jam in the
original conveying
section).
Jam code 73

(30) Defective original switch- Run maintenance item U244 and turn the original switchback
An original jams in back switch. switch on and off manually. Replace the switch if indication of
the SRDF* is indi- the corresponding switch on the operation panel is not displayed
cated during copy- in reverse.
ing (a jam in the
Defective DF timing Run maintenance item U244 and turn the DF timing switch on
original switchback
switch. and off manually. Replace the switch if indication of the corre-
section 1).
sponding switch on the operation panel is not displayed in re-
Jam code 75
verse.

Check if the original con- Run maintenance item U243 and select the original conveying
veying motor malfunctions. motor on the operation panel to be turned on and off. Check the
status and remedy if necessary.

(31) Defective original switch- Run maintenance item U244 and turn the original switchback
An original jams in back switch. switch on and off manually. Replace the switch if indication of
the SRDF* is indi- the corresponding switch on the operation panel is not displayed
cated during copy- in reverse.
ing (a jam in the
original switchback
section 2).
Jam code 76

*Optional.

1-5-25
2DF

Problem Causes/check procedures Corrective measures

(32) Defective paper conveying With 5 V DC present at CN4-9 on the finisher main PCB, check
Paper jams in the switch. if CN4-10 on the finisher main PCB remains high or low when
built-in finisher* dur- the paper conveying switch is turned on and off. If it does, re-
ing copying (intake place the paper conveying switch.
jam).
Check if the feedshift roller Check visually and replace the pulley or roller if deformed.
Jam code 82
or feedshift pulley is de-
formed.

(33) Defective paper conveying With 5 V DC present at CN4-9 on the finisher main PCB, check
Paper jams in the switch. if CN4-10 on the finisher main PCB remains high or low when
built-in finisher* dur- the paper conveying switch is turned on and off. If it does, re-
ing copying (jam place the paper conveying switch.
during paper con-
Check if the feedshift roller Check visually and replace the pulley or roller if deformed.
veying for batch
or press roller is deformed.
ejection 1).
Jam code 83

(34) Defective paper conveying With 5 V DC present at CN4-9 on the finisher main PCB, check
Paper jams in the switch. if CN4-10 on the finisher main PCB remains high or low when
built-in finisher* dur- the paper conveying switch is turned on and off. If it does, re-
ing copying (jam place the paper conveying switch.
during paper con-
Check if the eject roller or Check visually and replace the pulley or roller if deformed.
veying for batch
eject pulley is deformed.
ejection 2).
Jam code 84

*Optional.

1-5-26
 2DF

1-5-2 Self-diagnosis

(1) Self-diagnostic function

This unit is equipped with a self-diagnostic function. When a problem is detected, copying is disabled and the problem
displayed as a code consisting of "C" followed by a number between 0030 and 8500, indicating the nature of the problem.
A message is also displayed requesting the user to call for service.
After removing the problem, the self-diagnostic function can be reset by turning safety switches 1 or 2 off and back on.

Call for service.

012345678901234

C2000

Figure 1-5-2 Service call code display

1-5-27
2DF

(2) Self diagnostic codes

Remarks
Code Contents
Causes Check procedures/corrective measures
C0030 Fax board* problem Defective fax Replace the fax board and check for cor-
• Problems with data from fax board. board. rect operation.

C0110 Backup memory data problem Problem with the Turn safety switch 1 off and back on and
• Data in the specified area of the backup memory run maintenance item U020 to set the con-
backup memory does not match the data. tents of the backup memory data again.
specified values.
Defective backup If the C011 is displayed after re-setting the
RAM. backup memory contents, replace the
backup RAM.

C0210 Operation unit PCB communication Poor contact in Check the connection of connectors CN36,
problem the connector ter- CN42 on the main PCB and CN1, CN2 and
• There is no reply after 20 retries at minals. CN3 on the operation unit PCB, and the
communication. continuity across the connector terminals.
Repair or replace if necessary.

Defective main Replace the main PCB or operation unit

PCB or operation PCB and check for correct operation.
unit PCB.

C0240 Printer board* communication prob- Poor contact in Check the connection of connector CN43
lem the connector ter- on the main PCB and the connector on the
• There is no reply after 20 retries at minals. printer board. Repair or replace if neces-
communication. sary.

Defective main Replace the main PCB or printer board and

PCB or printer check for correct operation.
board.

C0250 Scanner network board* communi- Poor contact in Check the connection of connector CN46
cation problem the connector ter- on the main PCB and the connector on the
• There is no reply after 20 retries at minals. memory PCB. Repair or replace if neces-
communication. sary.

Defective main Replace the main PCB or scanner network

PCB or scanner board and check for correct operation.
network board.

C0280 Fax board* communication problem Poor contact in Check the connection of connector CN44
• There is no reply after 20 retries at the connector ter- on the main PCB and the connector on the
communication. minals. memory PCB. Repair or replace if neces-
sary.

Defective main Replace the main PCB or fax board and

PCB or fax board. check for correct operation.

C0420 Large paper deck*/paper feed desk* Poor contact in Check the connection of connectors CN3
communication problem the connector ter- on the main PCB and the connector on the
• Communication errors from the com- minals. deck main PCB/desk main PCB, and the
munication microcomputer on the continuity across the connector terminals.
main PCB. Repair or replace if necessary.
No communication: there is no reply
Defective main Replace the main PCB and check for cor-
after 5 retries.
PCB. rect operation.
Abnormal communication: a commu-
nication error (parity or checksum er- Defective deck Replace the deck main PCB/desk main
ror) is detected five times in succes- main PCB/desk PCB and check for correct operation.
sion. main PCB.

*: Optional
1-5-28
 2DF

Remarks
Code Contents
Causes Check procedures/corrective measures
C0440 Finisher* communication problem Poor contact in Check the connection of connectors CN4,
• Communication errors from the com- the connector ter- CN5 on the main PCB and CN2 on the fin-
munication microcomputer on the minals. isher main PCB, and the continuity across
main PCB. the connector terminals. Repair or replace
No communication: there is no reply if necessary.
after 5 retries.
Defective main Replace the main PCB and check for cor-
Abnormal communication: a commu-
PCB. rect operation.
nication error (parity or checksum er-
ror) is detected five times in succes- Defective finisher Replace the finisher main PCB and check
sion. main PCB. for correct operation.

C0450 Mailbox* communication problem Poor contact in Check the connection of connectors CN3
• Communication errors from the com- the connector ter- on the main PCB and CN1 on the mailbox
munication microcomputer on the minals. main PCB, and the continuity across the
main PCB. connector terminals. Repair or replace if
No communication: there is no reply necessary.
after 5 retries.
Defective main Replace the main PCB and check for cor-
Abnormal communication: a commu-
PCB. rect operation.
nication error (parity or checksum er-
ror) is detected five times in succes- Defective mailbox Replace the mailbox main PCB and check
sion. main PCB. for correct operation.

C0470 Switchback unit* communication Poor contact in Check the connection of connectors CN3
problem the connector ter- on the main PCB and the continuity across
• Communication errors from the com- minals. the connector terminals. Repair or replace
munication microcomputer on the if necessary.
main PCB.
Defective main Replace the main PCB and check for cor-
No communication: there is no reply
PCB. rect operation.
after 5 retries.
Abnormal communication: a commu- Defective switch- Replace the switchback unit main PCB and
nication error (parity or checksum er- back unit main check for correct operation.
ror) is detected five times in succes- PCB.
sion.

C0600 DIMM problem DIMM installed Check if the DIMM is inserted into the
The DIMM on the memory PCB does incorrectly. socket on the main PCB correctly.
not operate correctly.
Defective DIMM. Replace the DIMM and check for correct
operation.

C0610 Bitmap problem Defective main Replace the main PCB and check for cor-
• There is a problem with the data or PCB. rect operation.
address bus of the bitmap DRAM.

C0620 Memory input interface problem Defective main Replace the main PCB and check for cor-
Reading-in of an image does not com- PCB. rect operation.
plete within 10 s of the start of image
transmission.

C0630 DMA problem Defective main Replace the main PCB and check for cor-
• DMA transmission of compressed, PCB. rect operation.
decompressed, rotated, relocated or
blanked-out image data does not
complete within the specified period
of time.

*: Optional
1-5-29
2DF

Remarks
Code Contents
Causes Check procedures/corrective measures
C1010 Upper lift motor problem Broken gears or Replace the upper lift motor.
• When the upper drawer is inserted, couplings of the
the upper lift limit switch does not turn upper lift motor.
on within 6 s of the upper lift motor
Defective upper Check for continuity across the coil. If
turning on and the upper lift limit
lift motor. none, replace the upper lift motor.
switch does not turn on by turning off
the upper lift motor for 200 ms and Poor contact of Reinsert the connector. Also check for con-
retrying twice. the upper lift mo- tinuity within the connector cable. If none,
• During copying, the upper lift limit tor connector ter- repair or replace the cable.
switch does not turn on within 200 ms minals.
of the upper lift motor turning on.
Defective upper Check if CN13-B9 on the main PCB goes
lift limit switch. low when the upper lift limit switch is turned
off. If not, replace the upper lift limit switch.

Poor contact of Reinsert the connector. Also check for con-

the upper lift limit tinuity within the connector cable. If none,
switch connector repair or replace the cable.
terminals.

C1020 Lower lift motor problem Broken gears or Replace the lower lift motor.
• When the lower drawer is inserted, couplings of the
the lower lift limit switch does not turn lower lift motor.
on within 6 s of the lower lift motor
Defective lower lift Check for continuity across the coil. If
turning on and the lower lift limit
motor. none, replace the lower lift motor.
switch does not turn on by turning off
the lower lift motor for 200 ms and Poor contact of Reinsert the connector. Also check for con-
retrying twice. the lower lift motor tinuity within the connector cable. If none,
• During copying, the lower lift limit connector termi- repair or replace the cable.
switch does not turn on within 200 ms nals.
of the lower lift motor turning on.
Defective lower lift Check if CN13-B15 on the main PCB goes
limit switch. low when the lower lift limit switch is turned
off. If not, replace the lower lift limit switch.

Poor contact of Reinsert the connector. Also check for con-

the lower lift limit tinuity within the connector cable. If none,
switch connector repair or replace the cable.
terminals.

C1030 Desk upper lift motor problem Broken gears or Replace the desk upper lift motor.
• When the upper drawer of the paper couplings of the
feed desk* is inserted, the desk upper desk upper lift
lift limit switch does not turn on within motor.
6 s of the desk upper lift motor turning
Defective desk Check for continuity across the coil. If
on and the desk upper lift limit switch
upper lift motor. none, replace the desk upper lift motor.
does not turn on by turning off the
desk upper lift motor for 200 ms and Poor contact of Reinsert the connector. Also check for con-
retrying twice. the desk upper lift tinuity within the connector cable. If none,
• During copying, the desk upper lift motor connector repair or replace the cable.
limit switch does not turn on within terminals.
200 ms of the desk upper lift motor
Defective desk Check if CN1-5 on the desk main PCB
turning on.
upper lift limit goes low when the desk upper lift limit
switch. switch is turned off. If not, replace the desk
upper lift limit switch.

1-5-30
 2DF

Remarks
Code Contents
Causes Check procedures/corrective measures
C1030 Desk upper lift motor problem Poor contact of Reinsert the connector. Also check for con-
• When the upper drawer of the paper the desk upper lift tinuity within the connector cable. If none,
feed desk* is inserted, the desk upper limit switch con- repair or replace the cable.
lift limit switch does not turn on within nector terminals.
6 s of the desk upper lift motor turning
on and the desk upper lift limit switch
does not turn on by turning off the
desk upper lift motor for 200 ms and
retrying twice.
• During copying, the desk upper lift
limit switch does not turn on within
200 ms of the desk upper lift motor
turning on.

C1040 Desk lower lift motor problem Broken gears of Replace the desk lower lift motor.
• When the lower drawer of the paper couplings of the
feed desk* is inserted, the desk lower desk lower lift mo-
lift limit switch does not turn on within tor.
6 s of the desk lower lift motor turning
Defective desk Check for continuity across the coil. If
on and the desk lower lift limit switch
lower lift motor. none, replace the desk lower lift motor.
does not turn on by turning off the
desk lower lift motor for 200 ms and Poor contact of Reinsert the connector. Also check for con-
retrying twice. the desk lower lift tinuity within the connector cable. If none,
• During copying, the desk lower lift motor connector repair or replace the cable.
limit switch does not turn on within terminals.
200 ms of the desk lower lift motor
Defective desk Check if CN1-7 on the desk main PCB
turning on.
lower lift limit goes low when the desk lower lift limit
switch. switch is turned off. If not, replace the desk
lower lift limit switch.

Poor contact of Reinsert the connector. Also check for con-

the desk lower lift tinuity within the connector cable. If none,
limit switch con- repair or replace the cable.
nector terminals.

C1100 Paper deck motor 1* problem Paper deck motor Check the gears and remedy if necessary.
• A motor over-current signal is de- 1 does not rotate
tected continuously for 1 s or longer. correctly (the mo-
tor is overloaded).

Paper deck motor Reinsert the connector. Also check for con-
1 connector tinuity within the connector cable. If none,
makes poor con- repair or replace the cable.
tact.

C1110 Paper deck motor 2* problem Paper deck motor Check the gears and remedy if necessary.
• A motor over-current signal is de- 2 does not rotate
tected continuously for 1 s or longer. correctly (the mo-
tor is overloaded).

Paper deck motor Reinsert the connector. Also check for con-
2 connector tinuity within the connector cable. If none,
makes poor con- repair or replace the cable.
tact.

*: Optional
1-5-31
2DF

Remarks
Code Contents
Causes Check procedures/corrective measures
C1120 Deck right lift* position problem Defective deck Check if CN5-4 on the desk main PCB
• Deck level switch 2 does not turn on level switch 2. goes low when desk level switch 2 is
within 30 s of paper deck motor 2 turned off. If not, replace desk level switch
turning on. 2.

Poor contact of Reinsert the connector. Also check for con-

deck level switch tinuity within the connector cable. If none,
2 connector termi- repair or replace the cable.
nals.

Defective paper Check for continuity across the coil. If

deck motor 2. none, replace paper desk motor 2.

Poor contact of Reinsert the connector. Also check for con-

paper deck motor tinuity within the connector cable. If none,
2 connector termi- repair or replace the cable.
nals.

The deck right lift Check the gears and belts, and remedy if
does not rise necessary.
properly.

C1130 Deck left lift* position problem Defective deck Check if CN5-7 on the desk main PCB
• Deck level switch 2 does not turn on level switch 1. goes low when desk level switch 1 is
within 30 s of paper deck motor 2 turned off. If not, replace desk level switch
turning on. 1.

Poor contact of Reinsert the connector. Also check for con-

deck level switch tinuity within the connector cable. If none,
1 connector termi- repair or replace the cable.
nals.

Defective paper Check for continuity across the coil. If

deck motor 1. none, replace paper desk motor 1.

Poor contact of Reinsert the connector. Also check for con-

paper deck motor tinuity within the connector cable. If none,
1 connector termi- repair or replace the cable.
nals.

The deck left lift Check the gears and belts, and remedy if
does not rise necessary.
properly.

C1160 Large paper deck*/paper feed desk* Operation start Turn the power off and back on (reset re-
sequence problem request is sent quest is sent from the copier to the large
from the copier to paper deck/paper feed desk to cancel op-
the large paper eration start request).
deck/paper feed
desk while paper
feed is disabled.

Paper feed re- Turn the power off and back on (reset re-
quest is sent from quest is sent from the copier to the large
the copier to the paper deck/paper feed desk to cancel op-
large paper deck/ eration start request).
paper feed desk
before operation
start request.

*: Optional
1-5-32
 2DF

Remarks
Code Contents
Causes Check procedures/corrective measures
C1170 Large paper deck* (paper feed desk*) Deck/desk for the Replace the deck/desk fot the copier.
incorrect type problem printer is installed.

C2000 Drive motor problem Poor contact in Reinsert the connector. Also check for con-
• LOCK ALM signal remains high for 1 the drive motor tinuity within the connector cable. If none,
s, 1 s after the drive motor has turned connector termi- remedy or replace the cable.
on. nals.

Defective drive Replace the drive motor.

motor rotation
control circuit.

Defective drive Check if the rollers and gears rotate

transmission sys- smoothly. If not, grease the bushings and
tem. gears. Check for broken gears and replace
if any.

C2500 Paper feed motor problem Poor contact in Reinsert the connector. Also check for con-
• LOCK ALM signal remains high for 1 the paper feed tinuity within the connector cable. If none,
s, 1 s after the paper feed motor has motor connector remedy or replace the cable.
turned on. terminals.

Defective paper Replace the paper feed motor.

feed motor rota-
tion control circuit.

Defective drive Check if the rollers and gears rotate

transmission sys- smoothly. If not, grease the bushings and
tem. gears. Check for broken gears and replace
if any.

C2600 Deck conveying motor*/desk drive Defective deck Replace the deck conveying motor PCB/
motor* problem conveying motor desk drive motor PCB and check for cor-
• No pulse is input within 500 ms of the PCB/desk drive rect operation.
start-up. motor PCB.
• No pulse is input within 100 ms of the
Deck conveying Check the gears and remedy if necessary.
previous pulse input.
motor /desk drive
motor does not
rotate correctly
(the motor is over-
loaded).

Poor contact in Reinsert the connector. Also check for con-

the deck convey- tinuity within the connector cable. If none,
ing motor/desk remedy or replace the cable.
drive motor con-
nector terminals.

*: Optional
1-5-33
2DF

Remarks
Code Contents
Causes Check procedures/corrective measures
C3100 Scanner carriage problem Poor contact in Check the connection of connector CN37
• The home position is not correct the connector ter- on the main PCB and the continuity across
when the power is turned on or at the minals. the connector terminals. Repair or replace
start of copying using the bypass ta- if necessary.
ble.
Defective scanner Replace the scanner home position switch.
home position
switch.

Defective main Replace the main PCB or scanner drive

PCB or scanner PCB and check for correct operation.
drive PCB.

Defective scanner Replace the scanner motor.

motor.

C3200 Exposure lamp problem Poor contact of Check the connection of connectors CN34
• Check the CCD input value for the the connector ter- and CN37 on the main PCB, and the conti-
lighting status of the exposure lamp minals. nuity across the connector terminals. Re-
100 ms after the exposure lamp is lit pair or replace if necessary.
and the carriage is moved to the
Defective expo- Replace the exposure lamp or inverter
shading position. If the exposure lamp
sure lamp. PCB.
does not light, turn off the lamp. After
500 ms, light the lamp again and, a Defective main Replace the main PCB and check for cor-
further 500 ms later, check the CCD PCB. rect operation.
input.
Incorrect shading Adjust the position of the contact glass
The exposure lamp does not light af-
position. (shading plate). If the problem still occurs,
ter 5 retries.
replace the scanner home position switch.

C3300 Optical system problem Poor contact of Check the connection of connector CN34
• After AGC, correct input is not ob- the connector ter- on the main PCB, and the continuity across
tained at CCD. minals. the connector terminals. Repair or replace
if necessary.

Defective main Replace the main PCB and check for cor-
PCB. rect operation.

C4000 Polygon motor synchronization Poor contact in Reinsert the connector. Also check for con-
problem the polygon motor tinuity within the connector cable. If none,
• When the polygon motor starts, the connector termi- remedy or replace the cable.
motor does not become stable even nals.
after 20 s.
Defective polygon Replace the LSU (see page 1-6-20).
motor.

Defective power Check if 24 V DC is supplied to CN2-1 on

source PCB. the main PCB. If not, replace the power
source PCB.

Defective main Check if 24 V DC is output from CN8-10 on

PCB. the main PCB. If not, replace the main
PCB.

1-5-34
 2DF

Remarks
Code Contents
Causes Check procedures/corrective measures
C4010 Polygon motor steady-state problem Poor contact in Reinsert the connector. Also check for con-
• When high-speed rotation from low- the polygon motor tinuity within the connector cable. If none,
speed rotation is requested, the motor connector termi- remedy or replace the cable.
does not become stable even after 20 nals.
s.
Defective polygon Replace the LSU (see page 1-6-20).
motor.

Defective power Check if 24 V DC is supplied to CN2-1 on

source PCB. the main PCB. If not, replace the power
source PCB.

Defective main Check if 24 V DC is output from CN8-10 on

PCB. the main PCB. If not, replace the main PCB.

C4200 BD steady-state problem Defective laser Replace the LSU (see page 1-6-20).
• The VTC detects a BD error for 600 diode.
ms after the polygon motor rotation
Defective polygon Replace the LSU (see page 1-6-20).
has been stabilized.
motor.

Defective main Replace the main PCB and check for cor-
PCB. rect operation.

C5300 Broken cleaning lamp wire Defective cleaning Replace the cleaning lamp.
While the cleaning lamp is on, the bro- lamp.
ken cleaning lamp wire detection signal
Defective main Replace the main PCB and check for cor-
is detected for 2 s continuously.
PCB. rect operation.

C6000 Broken fixing heater wire Poor contact in Check the connection of connector CN10
• After secondary stabilization, de- the fixing unit on the main PCB and the continuity across
tected temperature of the fixing ther- thermistor con- the connector terminals. Repair or replace
mistor is lower than 100 °C/212 °F nector terminals. if necessary.
• When the fixing heater is turned on,
Fixing unit ther- Check and reinstall if necessary.
the output voltage of terminal CN2-1
mistor installed
of the power supply PCB is lower
incorrectly.
than 0.2 V.
• 7 s after the fixing heater is turned on, Fixing unit ther- Check for continuity. If none, replace the
the output voltage of terminal CN2-1 mostat triggered. fixing unit thermostat.
of the power supply PCB is lower
Fixing unit heater Check and reinstall if necessary.
than 0.2 V.
M or S installed
• When the output voltage of terminal
incorrectly.
CN 2-1 of the power supply PCB is
checked every 45 s during continuous Broken fixing unit Check for continuity. If none, replace the
copying, the voltage becomes lower heater M or S fixing unit heater M or S (see page 1-6-38).
than 0.2 V. wire.
• When the fixing temperature be-
comes lower than 140 °C/284 °F dur-
ing copying, the output voltage of ter-
minal CN 2-1 of the power supply
PCB is checked and the voltage is
lower than 0.2 V.

C6020 Abnormally high fixing unit thermis- Shorted fixing unit Measure the resistance. If it is 0 Ω, replace
tor temperature thermistor. the fixing unit thermistor.
• The fixing thermistor detects tempera-
Broken fixing unit Replace the power source PCB.
ture 240 °C/464 °F or higher.
heater control cir-
cuit on the power
source PCB.

1-5-35
2DF

Remarks
Code Contents
Causes Check procedures/corrective measures
C6050 Abnormally low fixing unit thermis- Poor contact in Check the connection of connector CN10
tor temperature the fixing unit on the main PCB and the continuity across
• The fixing thermistor detects tempera- thermistor con- the connector terminals. Repair or replace
ture lower than 100 °C/212 °F for 10 nector terminals. if necessary.
s.
Broken fixing unit Measure the resistance. If it is ∞ Ω, replace
• When fixing heater M is on, the tem-
thermistor wire. the fixing unit thermistor.
perature of the fixing thermistor is
lower than 40 °C/104 °F and contin- Fixing unit ther- Check and reinstall if necessary.
ues to drop for 24 s. (If the tempera- mistor installed
ture in the copier is 10 °C/50 °F or incorrectly.
less when power is turned on.)
Fixing unit ther- Check for continuity. If none, replace the
• When fixing heater M is on, the tem-
mostat triggered. fixing unit thermostat.
perature of the fixing thermistor is
lower than 40 °C/104 °F and contin- Fixing unit heater Check and reinstall if necessary.
ues to drop for 14 s. (If the tempera- M or S installed
ture in the copier is higher than 10 °C/ incorrectly.
50 °F when power is turned on.)
Broken fixing unit Check for continuity. If none, replace the
heater M or S fixing unit heater M or S.
wire.

C6410 Fixing unit connector insertion prob- Fixing unit con- Reinsert the fixing unit connector if neces-
lem nector inserted sary.
• Absence of the fixing unit is detected incorrectly.
continuously for 1500 ms while there
Defective fixing Replace the fixing unit.
is no error on the copier.
unit connector.

C6420 Broken fixing unit thermistor wire Poor contact in Check the connection of connector CN10
• The fixing temperature remains at 0 the fixing unit on the main PCB and the continuity across
°C/32 °F for 30 s continuously when thermistor con- the connector terminals. Repair or replace
the fixing heater is on. nector terminals. if necessary.

Broken fixing unit Measure the resistance. If it is ∞ Ω, replace

thermistor wire. the fixing unit thermistor.

C7300 Toner sensor problem Defective toner Replace the toner sensor.
• While the toner container sensor is sensor.
on, the toner sensor in the developing
Poor contact in Reinsert the connector. Also check for con-
unit does not turn on after the toner
the toner sensor tinuity within the connector cable. If none,
sensor turns off and toner is replen-
connector termi- remedy or replace the cable.
ished from the toner container.
nals.

Defective toner Replace the toner container sensor.

container sensor.

Defective toner Replace the toner container.

container.

C7400 Image formation unit connector in- Image formation Reinsert the image formation unit connec-
sertion problem unit connector in- tor if necessary.
• Absence of the image formation unit serted incorrectly.
is detected continuously for 1500 ms
Defective image Replace the image formation unit.
while there is no error on the copier.
formation unit
connector.

*: Optional
1-5-36
 2DF

Remarks
Code Contents
Causes Check procedures/corrective measures
C7410 Drum unit connector insertion prob- Drum unit connec- Reinsert the drum unit connector if neces-
lem tor inserted incor- sary.
• Absence of the drum unit is detected rectly.
continuously for 1500 ms while there
Defective drum Replace the drum unit.
is no error on the copier.
unit connector.

C7800 Broken external temperature ther- Poor contact in Reinsert the connector. Also check for con-
mistor wire the humidity sen- tinuity within the connector cable. If none,
• The input voltage is above 4.5 V. sor PCB connec- remedy or replace the cable.
tor terminals.

Defective external Replace the humidity sensor PCB.

temperature ther-
mistor.

C7810 Short-circuited external temperature Poor contact in Reinsert the connector. Also check for con-
thermistor the humidity sen- tinuity within the connector cable. If none,
• The input voltage is below 1.0 V. sor PCB connec- remedy or replace the cable.
tor terminals.

Defective external Replace the humidity sensor PCB.

temperature ther-
mistor.

C8010 Finisher* paper conveying motor Poor contact in Reinsert the connector. Also check for con-
problem the paper convey- tinuity within the connector cable. If none,
• The paper conveying motor lockup ing motor connec- remedy or replace the cable.
signal is detected for 0.5 s or longer. tor terminals.

The paper con- Replace the paper conveying motor and

veying motor mal- check for correct operation.
functions.

Defective finisher Replace the finisher main PCB and check

main PCB. for correct operation.

C8030 Finisher* paper conveying belt prob- The paper con- Adjust the paper conveying belt so that it is
lem veying belt is out in phase and check for correct operation.
• An on-to-off or off-to-on state change of phase.
of the paper conveying belt home po-
The paper con- Replace the paper conveying belt clutch
sition sensor is not detected within 2 s
veying belt clutch and check for correct operation.
of the paper conveying belt clutch
malfunctions.
turning on.
The paper con- Replace the paper conveying belt home
veying belt home position sensor and check for correct op-
position sensor eration.
malfunctions.

The paper con- Reinsert the connector. Also check for con-
veying belt home tinuity within the connector cable. If none,
position sensor remedy or replace the cable.
connector makes
poor contact.

The internal tray Check whether the internal tray unit or front
is incorrectly in- cover catches are damaged.
serted.

*: Optional
1-5-37
2DF

Remarks
Code Contents
Causes Check procedures/corrective measures
C8140 Finisher* tray elevation motor prob- Poor contact in Reinsert the connector. Also check for con-
lem the tray elevation tinuity within the connector cable. If none,
• The sort tray is not detected in the motor connector remedy or replace the cable.
home position within 30 s of the start terminals.
of the tray elevation motor rotation.
The tray elevation Replace the tray elevation motor and
motor malfunc- check for correct operation.
tions.

Defective finisher Replace the finisher main PCB and check

main PCB. for correct operation.

C8170 Finisher* front side registration mo- The front side reg- Reinsert the connector. Also check for con-
tor problem istration motor tinuity within the connector cable. If none,
• If the front side registration home po- connector makes remedy or replace the cable.
sition sensor is on in initialization, the poor contact.
sensor does not turn off within 570
The front side reg- Replace the front side registration motor
ms of starting initialization.
istration motor and check for correct operation.
• If the front side registration home po-
malfunctions.
sition sensor is off in initialization, the
sensor does not turn on within 3180 The front side reg- Reinsert the connector. Also check for con-
ms of starting initialization. istration home po- tinuity within the connector cable. If none,
sition sensor con- remedy or replace the cable.
nector makes
poor contact.

The front side reg- Replace the front side registration home
istration home po- position sensor and check for correct op-
sition sensor mal- eration.
functions.

Defective finisher Replace the finisher main PCB and check

main PCB. for correct operation.

C8180 Finisher* rear side registration motor The rear side reg- Reinsert the connector. Also check for con-
problem istration motor tinuity within the connector cable. If none,
• If the rear side registration home posi- connector makes remedy or replace the cable.
tion sensor is on in initialization, the poor contact.
sensor does not turn off within 570
The rear side reg- Replace the rear side registration motor
ms of starting initialization.
istration motor and check for correct operation.
• If the rear side registration home posi-
malfunctions.
tion sensor is off in initialization, the
sensor does not turn on within 2880 The rear side reg- Reinsert the connector. Also check for con-
ms of starting initialization. istration home po- tinuity within the connector cable. If none,
sition sensor con- remedy or replace the cable.
nector makes
poor contact.

The rear side reg- Replace the rear side registration home
istration home po- position sensor and check for correct op-
sition sensor mal- eration.
functions.

Defective finisher Replace the finisher main PCB and check

main PCB. for correct operation.

*: Optional
1-5-38
 2DF

Remarks
Code Contents
Causes Check procedures/corrective measures
C8190 Finisher* trailing edge registration The trailing edge Reinsert the connector. Also check for con-
motor problem registration motor tinuity within the connector cable. If none,
• If the trailing edge registration home connector makes remedy or replace the cable.
position sensor is on in initialization, poor contact.
the sensor does not turn off within
The trailing edge Replace the trailing edge registration motor
570 ms of starting initialization.
registration motor and check for correct operation.
• If the trailing edge registration home
malfunctions.
position sensor is off in initialization,
the sensor does not turn on within The trailing edge Reinsert the connector. Also check for con-
4550 ms of starting initialization. registration home tinuity within the connector cable. If none,
position sensor remedy or replace the cable.
connector makes
poor contact.

The trailing edge Replace the trailing edge registration home

registration home position sensor and check for correct op-
position sensor eration.
malfunctions.

Defective finisher Replace the finisher main PCB and check

main PCB. for correct operation.

C8210 Finisher* front stapler problem The front stapler Reinsert the connector. Also check for con-
• The front stapler home position sen- connector makes tinuity within the connector cable. If none,
sor does not change state from non- poor contact. remedy or replace the cable.
detection to detection within 200 ms
The front stapler
of the start of front stapler motor
malfunctions.
counterclockwise (forward) rotation.
a) The front sta- a) Remove the front stapler cartridge, and
• During initialization, the front stapler
pler is blocked check the cartridge and the stapling sec-
home position sensor does not
with a staple. tion of the stapler.
change state from non-detection to
b) The front sta- b) Replace the front stapler and check for
detection within 600 ms of the start of
pler is broken. correct operation.
front stapler motor clockwise (re-
verse) rotation. Defective finisher Replace the finisher main PCB and check
main PCB. for correct operation.

C8220 Finisher* rear stapler problem The rear stapler Reinsert the connector. Also check for con-
• The rear stapler home position sensor connector makes tinuity within the connector cable. If none,
does not change state from non-de- poor contact. remedy or replace the cable.
tection to detection within 200 ms of
The rear stapler
the start of rear stapler motor
malfunctions.
counterclockwise (forward) rotation.
a) The rear sta- a) Remove the front stapler cartridge, and
• During initialization, the rear stapler
pler is blocked check the cartridge and the stapling sec-
home position sensor does not
with a staple. tion of the stapler.
change state from non-detection to
b) The rear sta- b) Replace the front stapler and check for
detection within 600 ms of the start of
pler is broken. correct operation.
rear stapler motor clockwise (reverse)
rotation. Defective finisher Replace the finisher main PCB and check
main PCB. for correct operation.

C8300 Booklet stitcher* paper ejection mo- A problem is de- See the booklet stitcher service manual.
tor problem tected with the
paper ejection
motor.

C8310 Booklet stitcher* elevation motor A problem is de- See the booklet stitcher service manual.
problem tected with the
elevation motor.

*: Optional
1-5-39
2DF

Remarks
Code Contents
Causes Check procedures/corrective measures
C8320 Booklet stitcher* rear jog motor A problem is de- See the booklet stitcher service manual.
problem tected with the
rear jog motor.

C8330 Booklet stitcher* front jog motor A problem is de- See the booklet stitcher service manual.
problem tected with the
front jog motor.

C8340 Booklet stitcher* staple motor prob- A problem is de- See the booklet stitcher service manual.
lem tected with the
staple motor.

C8350 Booklet stitcher* batch processing A problem is de- See the booklet stitcher service manual.
motor problem tected with the
batch processing
motor.

C8360 Booklet stitcher* stapler shift motor A problem is de- See the booklet stitcher service manual.
problem tected with the
stapler shift mo-
tor.

C8370 Booklet stitcher* paddle motor prob- A problem is de- See the booklet stitcher service manual.
lem tected with the
paddle motor.

C8380 Booklet stitcher* folding problem A problem is de- See the booklet stitcher service manual.
tected with the
folding sensor.

C8390 Booklet stitcher* backup RAM data A backup RAM See the booklet stitcher service manual.
problem data error is de-
tected.

C8400 Booklet stitcher* incorrect type An incorrect type See the booklet stitcher service manual.
problem error is detected.

C8410 Booklet stitcher* punch motor prob- A problem is de- See the booklet stitcher service manual.
lem tected with the
punch motor.

C8420 Booklet stitcher* shift motor prob- A problem is de- See the booklet stitcher service manual.
lem tected with the
shift motor.

C8430 Booklet stitcher* punch communica- A problem is de- See the booklet stitcher service manual.
tion problem tected with the
punch communi-
cation.

C8440 Booklet stitcher* punch sensor prob- A problem is de- See the booklet stitcher service manual.
lem tected with the
punch sensor.

C8450 Booklet stitcher* side punch sensor A problem is de- See the booklet stitcher service manual.
problem tected with the
side punch sen-
sor.

*: Optional
1-5-40
 2DF

Remarks
Code Contents
Causes Check procedures/corrective measures
C8460 Booklet stitcher* punch backup RAM A problem is de- See the booklet stitcher service manual.
data problem tected with the
punch backup
RAM data.

C8470 Booklet stitcher* punch dust sensor A problem is de- See the booklet stitcher service manual.
problem tected with the
punch dust sen-
sor.

C8480 Booklet stitcher* broken punch A broken punch See the booklet stitcher service manual.
power source wire problem power source wire
problem is de-
tected.

C8500 Mailbox* drive motor problem Defective mailbox Run a simulation of the mailbox (communi-
• While the mailbox drive motor is driv- drive motor or cation test mode, see page 3-2-2 of the
ing, synchronization signals do not mailbox main mailbox service manual). If there is any
synchronize continually for 464 ms PCB. problem with the communication, replace
(motor lockup). the mailbox drive motor or the mailbox
main PCB and check for correct operation.

*: Optional
1-5-41
2DF

1-5-3 Image formation problems

(1) No image appears (2) No image appears (3) Image is too light. (4) Background is visible.
(entirely white). (entirely black).

See page 1-5-43 See page 1-5-44 See page 1-5-45 See page 1-5-45
(5) A white line appears (6) A black line appears (7) A black line appears (8) One side of the copy
longitudinally. longitudinally. laterally. image is darker than
the other.

See page 1-5-45 See page 1-5-46 See page 1-5-46 See page 1-5-46

(9) Black dots appear on (10) Image is blurred. (11) The leading edge of the (12) The leading edge of the
the image. image is consistently image is sporadically
misaligned with the misaligned with the
original. original.

See page 1-5-47 See page 1-5-47 See page 1-5-47 See page 1-5-48
(13) Paper creases. (14) Offset occurs. (15) Image is partly missing. (16) Fixing is poor.

See page 1-5-48 See page 1-5-48 See page 1-5-49 See page 1-5-49

(17) Image is out of focus. (18) Image center does not (19) Image is not square.
align with the original
center.

See page 1-5-49 See page 1-5-50 See page 1-5-50

1-5-42
 2DF

(1) No image appears Causes

(entirely white). 1. No transfer charging.
2. No LSU laser is output.
3. No developing bias is output.

Causes Check procedures/corrective measures

1. No transfer charging.
A. The connector terminals of the high-voltage Reinsert the connector. Also check for continuity within the
transformer PCB make poor contact. connector cable. If none, remedy or replace the cable.
B. Defective main PCB. Check if CN7-10 on the main PCB goes low when maintenance item
U101 is run. If not, replace the main PCB.
C. Defective high-voltage transformer PCB. Check if transfer charging takes place when CN1-10 on the high-
voltage transformer PCB goes low while maintenance item U101 is
run. If not, replace the high-voltage transformer PCB.
2. No LSU laser is output.
A. Defective laser scanner unit. Replace the laser scanner unit.
B. Defective main PCB. Check if CN8-4 on the main PCB goes low when maintenance item
U101 is run. If not, replace the main PCB.
3. No developing bias is output.
A. Defective main PCB. Check if CN7-1 on the main PCB goes low when maintenance item
U101 is run. If not, replace the main PCB.
B. Defective high-voltage transformer PCB. Check if developing bias voltage is output when the main PCB is
normal while maintenance item U101 is run. If not, replace the high-
voltage transformer PCB.

1-5-43
2DF

(2) No image appears Causes

(entirely black). 1. No main charging.
2. Exposure lamp fails to light.

Causes Check procedures/corrective measures

1. No main charging.
A. Broken main charger wire. Replace the main charger unit.
B. Leaking main charger housing. Clean the main charger wire, grid and shield.
C. The connector terminals of the high-voltage Reinsert the connector. Also check for continuity within the
transformer PCB make poor contact. connector cable. If none, remedy or replace the cable.
D. Defective main PCB. Check if CN7-3 on the main PCB goes low when maintenance item
U100 is run. If not, replace the main PCB.
E. Defective high-voltage transformer PCB. Check if main charging takes place when CN1-3 on the high-voltage
transformer PCB goes low while maintenance item U100 is run. If
not, replace the high-voltage transformer PCB.
2. Exposure lamp fails to light.
A. The connector terminals of the exposure Reinsert the connector. Also check for continuity within the
lamp make poor contact. connector cable. If none, remedy or replace the cable.
B. Defective inverter PCB. Check if the exposure lamp lights when CN1-1 and 1-2 on the
inverter PCB go low while maintenance item U061 is run. If not,
replace the inverter PCB.
C. Defective scanner drive PCB. Check if the exposure lamp lights when CN1-3 on the scanner drive
PCB goes low while maintenance item U061 is run. If not, replace
the scanner drive PCB.
D. Defective main PCB. Check if CN37-3 on the main PCB goes low when maintenance item
U061 is run. If not, replace the main PCB.

1-5-44
 2DF

(3) Image is too Causes

light. 1. Insufficient toner.
2. Deteriorated toner.
3. The transfer voltage is not output properly.
4. Dirty main charger wire.

Causes Check procedures/corrective measures

1. Insufficient toner. If the display shows the message requesting toner replenishment,
replace the cartridge.
2. Deteriorated toner. Perform the drum refresh operation.
3. The transfer voltage is not output properly. Clean or check the transfer roller.
4. Dirty main charger. Clean the main charger or, if it is extremely dirty, replace it.

(4) Background is visible. Causes

1. Deteriorated toner.
2. Dirty main charger.

Causes Check procedures/corrective measures

1. Deteriorated toner. Perform the drum refresh operation.
2. Dirty main charger wire. Clean the wire or, if it is extremely dirty, replace it.

(5) A white line appears Causes

longitudinally. 1. Foreign matter in the developing unit.
2. Dirty shading plate.

Causes Check procedures/corrective measures

1. Foreign matter in the developing unit. Check if the magnetic brush is formed uniformly. Replace the
developing unit if any foreign matter.
2. Dirty shading plate. Clean the shading plate.

1-5-45
2DF

(6) A black line appears Causes

longitudinally. 1. Dirty contact glass.
2. Dirty or flawed drum.
3. Deformed or worn cleaning blade.
4. Dirty scanner mirror.
5. Dirty main charger wire.

Causes Check procedures/corrective measures

1. Dirty contact glass. Clean the contact glass.
2. Dirty or flawed drum. Perform the drum refresh operation. If the drum is flawed, replace
the drum unit.
3. Deformed or worn cleaning blade. Replace the cleaning blade.
4. Dirty scanner mirror. Clean the scanner mirror.
5. Dirty main charger wire. Clean the main charger wire or, if it is extremely dirty, replace it.

(7) A black line ap- Causes

pears laterally. 1. Flawed drum.
2. Dirty developing section.
3. Leaking main charger housing.
4. Leaking separation electrode.

Causes Check procedures/corrective measures

1. Flawed drum. Replace the drum unit.
2. Dirty developing section. Clean any part contaminated with toner in the developing section.
3. Leaking main charger housing. Clean the main charger wire, grid and shield.
4. Leaking separation electrode. Clean the separation electrode.

(8) One side of the Causes

copy image is 1. Dirty main charger wire.
darker than the 2. Defective exposure lamp.
other.

Causes Check procedures/corrective measures

1. Dirty main charger wire. Clean the wire or, if it is extremely dirty, replace it.
2. Defective exposure lamp. Check if the exposure lamp light is distributed evenly. If not, replace
the exposure lamp (see page 1-6-25).

1-5-46
 2DF

(9) Black dots appear Causes

on the image. 1. Dirty or flawed drum.
2. Dirty contact glass.
3. Deformed or worn cleaning blade.
4. Dirty drum separation claws.
5. Dirty heat roller separation claws.

Causes Check procedures/corrective measures

1. Dirty or flawed drum. Perform the drum refresh operation. If the drum is flawed, replace
the drum unit.
2. Dirty contact glass. Clean the contact glass.
3. Deformed or worn cleaning blade. Replace the cleaning blade.
4. Dirty drum separation claws. Clean the drum separation claws.
5. Dirty the heat roller separation claws. Clean the heat roller separation claws.

(10) Image is blurred. Causes

1. Scanner moves erratically.
2. Deformed press roller.
3. Paper conveying section drive problem.

Causes Check procedures/corrective measures

1. Scanner moves erratically. Check if there is any foreign matter on the front and rear scanner
rails. If any, remove it.
2. Deformed press roller. Replace the press roller (see page 1-6-63).
3. Paper conveying section drive problem. Check the gears and belts and, if necessary, grease them.

(11) The leading edge of Causes

the image is consist- 1. Misadjusted leading edge registration.
ently misaligned with 2. Misadjusted scanner leading edge
the original. registration.

Causes Check procedures/corrective measures

1. Misadjusted leading edge registration. Readjust the leading edge registration (see pages 1-6-17).
2. Misadjusted scanner leading edge Readjust the scanner leading edge registration (see page 1-6-17).
registration.

1-5-47
2DF

(12) The leading edge of Causes

the image is sporadi- 1. Feed clutch, paper feed clutch, bypass paper
cally misaligned with feed clutch or registration clutch installed or
the original. operating incorrectly.

Causes Check procedures/corrective measures

1. Feed clutch, paper feed clutch, bypass paper Check the installation position and operation of the feed clutch,
feed clutch or registration clutch installed or paper feed clutch, bypass paper feed clutch and registration clutch. If
operating incorrectly. any of them operates incorrectly, replace it.

(13) Paper creases. Causes

1. Paper curled.
2. Paper damp.
3. Defective pressure springs.
4. Defective separation.
5. Defective fans.

Causes Check procedures/corrective measures

1. Paper curled. Check the paper storage conditions.
2. Paper damp. Check the paper storage conditions.
3. Defective pressure springs. Replace the pressure springs.
4. Defective separation. Check the drum separation claws and heat roller separation claws.
5. Defective fans. Replace the fans.

(14) Offset occurs. Causes

1. Defective cleaning blade.
2. Defective fixing section.

Causes Check procedures/corrective measures

1. Defective cleaning blade. Replace the cleaning blade (see page 1-6-46).
2. Defective fixing section. Replace the heat roller and press roller.

1-5-48
 2DF

(15) Image is partly miss- Causes

ing. 1. Paper damp.
2. Paper creased.
3. Drum condensation.
4. Flawed drum.

Causes Check procedures/corrective measures

1. Paper damp. Check the paper storage conditions.
2. Paper creased. Replace the paper.
3. Drum condensation. Perform the drum refresh operation.
4. Flawed drum. Perform the drum refresh operation. If the drum is flawed, replace
the drum unit.

(16) Fixing is poor. Causes

1. Wrong paper.
2. Defective pressure springs.
3. Flawed press roller.
4. Defective fixing heater S.

Causes Check procedures/corrective measures

1. Wrong paper. Check if the paper meets specifications.
2. Defective pressure springs. Replace the pressure springs.
3. Flawed press roller. Replace the press roller (see page 1-6-63).
4. Defective fixing heater S. Replace the fixing heater S (see page 1-6-63).

(17) Image is out of Causes

focus. 1. Defective image scanning unit.
2. Drum condensation.

Causes Check procedures/corrective measures

1. Defective image scanning unit. Replace the image scanning unit (see page 1-6-30).
2. Drum condensation. Perform the drum refresh operation.

1-5-49
2DF

(18) Image center does not Causes

align with the original 1. Misadjusted center line of image printing.
center. 2. Misadjusted scanner center line.
3. Original placed incorrectly.

Causes Check procedures/corrective measures

1. Misadjusted center line of image printing. Readjust the center line of image printing (see page 1-6-19).
2. Misadjusted scanner center line. Readjust the scanner center line (see page 1-6-37).
3. Original placed incorrectly. Place the original correctly.

(19) Image is not Causes

square. 1. Laser scanner unit positioned incorrectly.
2. Image scanning unit positioned incorrectly.

Causes Check procedures/corrective measures

1. Laser scanner unit positioned incorrectly. Adjust the installation position of the laser scanner unit
(see page 1-6-30).
2. Image scanning unit positioned incorrectly. Adjust the installation position of the image scanning unit
(see page 1-6-30).

1-5-50
 2DF

1-5-4 Electrical problems

Problem Causes Check procedures/corrective measures
(1) No electricity at the power Measure the input voltage.
The machine does outlet.
not operate when
The power cord is not Check the contact between the power plug and the outlet.
the main switch is
plugged in properly.
turned on.
The front cover, conveying Check the front cover, conveying cover and side cover.
cover and/or side cover
are/is not closed com-
pletely.

Broken power cord. Check for continuity. If none, replace the cord.

Defective main switch. Check for continuity across the contacts. If none, replace the
main switch.

Blown fuse in the power Check for continuity. If none, remove the cause of blowing and
source PCB. replace the fuse.

Defective safety switch 1 Check for continuity across the contacts of each switch. If none,
or 2. replace the switch.

Defective power source With AC present, check for 24 V DC at CN1-1 and 5 V DC at

PCB. CN1-5 on the power source PCB. If none, replace the power
source PCB.

(2) Poor contact in the drive Reinsert the connector. Also check for continuity within the con-
The drive motor motor connector terminals. nector cable. If none, remedy or replace the cable.
does not operate
Broken drive motor gear. Check visually and replace the drive motor if necessary.
(C2000).
Defective drive motor. Run maintenance item U030 and check if the drive motor oper-
ates when CN11-9 on the main PCB goes low. If not, replace the
drive motor.

Defective main PCB. Run maintenance item U030 and check if CN11-9 on the main
PCB goes low. If not, replace the main PCB.

(3) Poor contact in the paper Reinsert the connector. Also check for continuity within the con-
The paper feed mo- feed motor connector ter- nector cable. If none, remedy or replace the cable.
tor does not operate minals.
(C2500).
Broken paper feed motor Check visually and replace the paper feed motor if necessary.
gear.

Defective paper feed mo- Run maintenance item U030 and check if the paper feed motor
tor. operates when CN11-10 on the main PCB goes low. If not, re-
place the paper feed motor.

Defective main PCB. Run maintenance item U030 and check if CN11-10 on the main
PCB goes low. If not, replace the main PCB.

(4) Poor contact in the eject Reinsert the connector. Also check for continuity within the con-
The eject motor motor connector terminals. nector cable. If none, remedy or replace the cable.
does not operate.
Broken eject motor gear. Check visually and replace the eject motor if necessary.

Defective eject motor. Run maintenance item U030 and check if the eject motor oper-
ates when CN16-B11, CN16-B12, CN16-B13 and CN16-B14 on
the main PCB go low. If not, replace the eject motor.

Defective eject switch. Run maintenance item U031 and turn the eject switch on and off
manually. Replace the switch if indication of the corresponding
switch on the operation panel is not displayed in reverse.

1-5-51
2DF

Problem Causes Check procedures/corrective measures

(4) Defective main PCB. Run maintenance item U030 and check if CN16-B11, CN16-
The eject motor B12, CN16-B13 and CN16-B14 on the main PCB go low. If not,
does not operate. replace the main PCB.

(5) Broken upper lift motor Check for continuity across the coil. If none, replace the upper
The upper lift motor coil. lift motor.
does not operate
Poor contact in the upper Reinsert the connector. Also check for continuity within the con-
(C1010).
lift motor connector termi- nector cable. If none, remedy or replace the cable.
nals.

Defective main PCB. Check if 24 V DC is output across CN13-A17 on the main PCB
right after the upper drawer is installed. If not, replace the main
PCB.

(6) Broken lower lift motor Check for continuity across the coil. If none, replace the lower lift
The lower lift motor coil. motor.
does not operate
Poor contact in the lower Reinsert the connector. Also check for continuity within the con-
(C1020).
lift motor connector termi- nector cable. If none, remedy or replace the cable.
nals.

Defective main PCB. Check if 24 V DC is output across CN13-B7 on the main PCB
right after the lower drawer is installed. If not, replace the main
PCB.

(7) Broken scanner motor coil. Check for continuity across the coil. If none, replace the scanner
The scanner motor motor.
does not operate.
Poor contact in the scan- Reinsert the connector. Also check for continuity within the con-
ner motor connector termi- nector cable. If none, remedy or replace the cable.
nals.

(8) Broken cooling fan motor 1 Check for continuity across the coil. If none, replace cooling fan
Cooling fan motor 1 coil. motor 1.
does not operate.
Poor contact in the cooling Reinsert the connector. Also check for continuity within the con-
fan motor 1 connector ter- nector cable. If none, repair or replace the cable.
minals.

(9) Broken cooling fan motor 2 Check for continuity across the coil. If none, replace cooling fan
Cooling fan motor 2 coil. motor 2.
does not operate.
Poor contact in the cooling Reinsert the connector. Also check for continuity within the con-
fan motor 2 connector ter- nector cable. If none, repair or replace the cable.
minals.

(10) Broken cooling fan motor 3 Check for continuity across the coil. If none, replace cooling fan
Cooling fan motor 3 coil. motor 3.
does not operate.
Poor contact in the cooling Reinsert the connector. Also check for continuity within the con-
fan motor 3 connector ter- nector cable. If none, repair or replace the cable.
minals.

(11) Broken cooling fan motor 4 Check for continuity across the coil. If none, replace cooling fan
Cooling fan motor 4 coil. motor 4.
does not operate.
Poor contact in the cooling Reinsert the connector. Also check for continuity within the con-
fan motor 4 connector ter- nector cable. If none, repair or replace the cable.
minals.

1-5-52
 2DF

Problem Causes Check procedures/corrective measures

(12) Broken cooling fan motor 5 Check for continuity across the coil. If none, replace cooling fan
Cooling fan motor 5 coil. motor 5.
does not operate.
Poor contact in the cooling Reinsert the connector. Also check for continuity within the con-
fan motor 5 connector ter- nector cable. If none, repair or replace the cable.
minals.

(13) Broken cooling fan motor 6 Check for continuity across the coil. If none, replace cooling fan
Cooling fan motor 6 coil. motor 6.
does not operate.
Poor contact in the cooling Reinsert the connector. Also check for continuity within the con-
fan motor 6 connector ter- nector cable. If none, repair or replace the cable.
minals.

(14) Broken cooling fan motor 7 Check for continuity across the coil. If none, replace cooling fan
Cooling fan motor 7 coil. motor 7.
does not operate.
Poor contact in the cooling Reinsert the connector. Also check for continuity within the con-
fan motor 7 connector ter- nector cable. If none, repair or replace the cable.
minals.

(15) Broken cooling fan motor 8 Check for continuity across the coil. If none, replace cooling fan
Cooling fan motor 8 coil. motor 8.
does not operate.
Poor contact in the cooling Reinsert the connector. Also check for continuity within the con-
fan motor 8 connector ter- nector cable. If none, repair or replace the cable.
minals.

(16) Broken cooling fan motor 9 Check for continuity across the coil. If none, replace cooling fan
Cooling fan motor 9 coil. motor 9.
does not operate.
Poor contact in the cooling Reinsert the connector. Also check for continuity within the con-
fan motor 9 connector ter- nector cable. If none, repair or replace the cable.
minals.

(17) Broken upper paper feed Check for continuity across the coil. If none, replace the upper
The upper paper clutch coil. paper feed clutch.
feed clutch does not
Poor contact in the upper Reinsert the connector. Also check for continuity within the con-
operate.
paper feed clutch connec- nector cable. If none, remedy or replace the cable.
tor terminals.

Defective main PCB. Run maintenance item U032 and check if CN16-B1 on the main
PCB goes low. If not, replace the main PCB.

(18) Broken lower paper feed Check for continuity across the coil. If none, replace the lower
The lower paper clutch coil. paper feed clutch.
feed clutch does not
Poor contact in the lower Reinsert the connector. Also check for continuity within the con-
operate.
paper feed clutch connec- nector cable. If none, remedy or replace the cable.
tor terminals.

Defective main PCB. Run maintenance item U032 and check if CN16-B4 on the main
PCB goes low. If not, replace the main PCB.

(19) Broken feed clutch 1 coil. Check for continuity across the coil. If none, replace feed clutch
Feed clutch 1 does 1.
not operate.
Poor contact in feed clutch Reinsert the connector. Also check for continuity within the con-
1 connector terminals. nector cable. If none, remedy or replace the cable.

Defective main PCB. Run maintenance item U032 and check if CN11-14 on the main
PCB goes low. If not, replace the main PCB.

1-5-53
2DF

Problem Causes Check procedures/corrective measures

(20) Broken feed clutch 2 coil. Check for continuity across the coil. If none, replace feed clutch
Feed clutch 2 does 2.
not operate.
Poor contact in feed clutch Reinsert the connector. Also check for continuity within the con-
2 connector terminals. nector cable. If none, remedy or replace the cable.

Defective main PCB. Run maintenance item U032 and check if CN13-A12 on the
main PCB goes low. If not, replace the main PCB.

(21) Broken feed clutch 3 coil. Check for continuity across the coil. If none, replace feed clutch
Feed clutch 3 does 3.
not operate.
Poor contact in feed clutch Reinsert the connector. Also check for continuity within the con-
3 connector terminals. nector cable. If none, remedy or replace the cable.

Defective main PCB. Run maintenance item U032 and check if CN13-A5 on the main
PCB goes low. If not, replace the main PCB.

(22) Broken bypass paper feed Check for continuity across the coil. If none, replace the bypass
The bypass paper clutch coil. paper feed clutch.
feed clutch does not
Poor contact in the bypass Reinsert the connector. Also check for continuity within the con-
operate.
paper feed clutch connec- nector cable. If none, remedy or replace the cable.
tor terminals.

Defective main PCB. Run maintenance item U032 and check if CN6-A9 on the main
PCB goes low. If not, replace the main PCB.

(23) Broken bypass feed clutch Check for continuity across the coil. If none, replace the bypass
The bypass feed coil. feed clutch.
clutch does not op-
Poor contact in the bypass Reinsert the connector. Also check for continuity within the con-
erate.
feed clutch connector ter- nector cable. If none, remedy or replace the cable.
minals.

Defective main PCB. Run maintenance item U032 and check if CN6-A11 on the main
PCB goes low. If not, replace the main PCB.

(24) Broken registration clutch Check for continuity across the coil. If none, replace the registra-
The registration coil. tion clutch.
clutch does not op-
Poor contact in the regis- Reinsert the connector. Also check for continuity within the con-
erate.
tration clutch connector nector cable. If none, remedy or replace the cable.
terminals.

Defective main PCB. Run maintenance item U032 and check if CN10-A2 on the main
PCB goes low. If not, replace the main PCB.

(25) Broken feedshift solenoid Check for continuity across the coil. If none, replace the feedshift
The feedshift sole- coil. solenoid.
noid does not oper-
Poor contact in the Reinsert the connector. Also check for continuity within the con-
ate.
feedshift solenoid connec- nector cable. If none, remedy or replace the cable.
tor terminals.

Defective main PCB. Run maintenance item U033 and check if CN16-A1 and CN16-
A2 on the main PCB go low. If not, replace the main PCB.

(26) Broken toner feed solenoid Check for continuity across the coil. If none, replace the toner
The toner feed sole- coil. feed solenoid.
noid does not oper-
Poor contact in the toner Reinsert the connector. Also check for continuity within the con-
ate.
feed solenoid connector nector cable. If none, remedy or replace the cable.
terminals.

Defective main PCB. Run maintenance item U033 and check if CN9-B2 on the main
PCB goes low. If not, replace the main PCB.

1-5-54
 2DF

Problem Causes Check procedures/corrective measures

(27) Poor contact in the clean- Reinsert the connector. Also check for continuity within the con-
The cleaning lamp ing lamp connector termi- nector cable. If none, remedy or replace the cable.
does not turn on. nals.

Defective cleaning lamp. Check for continuity. If none, replace the cleaning lamp.

Defective main PCB. If the cleaning lamp turns on when CN9-B7 on the main PCB is
held low, replace the main PCB.

(28) Poor contact in the expo- Reinsert the connector. Also check for continuity within the con-
The exposure lamp sure lamp connector termi- nector cable. If none, remedy or replace the cable.
does not turn on. nals.

Defective inverter PCB. Run maintenance item U061 and check if the exposure lamp
turns on with CN1-1 and CN1-2 on the inverter PCB go low. If
not, replace the inverter PCB.

Defective scanner drive Run maintenance item U061 and check if the exposure lamp
PCB. turns on with CN1-3 on the scanner drive PCB goes low. If not,
replace the scanner drive PCB.

Defective main PCB. Run maintenance item U061 and check if CN37-3 on the main
PCB goes low. If not, replace the main PCB.

(29) Defective inverter PCB. If the exposure lamp does not turn off with CN1-1 and CN1-2 on
The exposure lamp the inverter PCB high, replace the inverter PCB.
does not turn off.
Defective scanner drive If CN1-3 on the scanner drive PCB are always low, replace the
PCB. scanner drive PCB.

(30) Broken wire in fixing Check for continuity across each heater. If none, replace the
The fixing heater heater M or S. heater M or S.
does not turn on
Fixing unit thermostat trig- Check for continuity across thermostat. If none, remove the
(C6000).
gered. cause and replace the thermostat.

(31) Broken fixing unit thermis- Measure the resistance. If it is ∞ Ω, replace the fixing unit ther-
The fixing heater tor wire. mistor.
does not turn off.
Dirty sensor part of the Check visually and clean the thermistor sensor parts.
fixing unit thermistor.

(32) Broken main charger wire. See page 1-5-44.

Main charging is not
Leaking main charger
performed.
housing.

Poor contact in the high-

voltage transformer PCB
connector terminals.

Defective main PCB.

Defective high- voltage

transformer PCB.

(33) Poor contact in the high- See page 1-5-43.

Transfer charging is voltage transformer PCB
not performed. connector terminals.

Defective main PCB.

Defective high-voltage
transformer PCB.

1-5-55
2DF

Problem Causes Check procedures/corrective measures

(34) Defective main PCB. See page 1-5-43.
No developing bias
Defective high-voltage
is output.
transformer PCB.

(35) Defective original detec- If the level of CN5-2 on the scanner drive PCB does not change
The original size is tion switch. when the original detection switch is turned on and off, replace
not detected. the original detection switch.

(36) Original is not placed cor- Check the original and correct if necessary.
The original size is rectly.
not detected cor-
Poor contact in the original Reinsert the connector. Also check for continuity within the con-
rectly.
size detection sensor con- nector cable. If none, remedy or replace the cable.
nector terminals.

Defective original size de- Check if sensor operates correctly. If not, replace it.
tection sensor.

(37) Poor contact in the touch Reinsert the connector. Also check for continuity within the con-
The touch panel panel connector terminals. nector cable. If none, remedy or replace the cable.
keys do not work.
Defective touch panel or If any keys do not work after the touch panel has been initial-
operation unit PCB. ized, replace the touch panel or operation unit PCB.

(38) Poor contact in the upper Reinsert the connector. Also check for continuity within the con-
The message re- paper switch connector nector cable. If none, remedy or replace the cable.
questing paper to be terminals.
loaded is shown
Defective upper paper Check if CN13-B12 on the main PCB goes low when the upper
when paper is
switch. paper switch is turned on with 5 V DC present at CN13-B13 on
present in the upper
the main PCB. If not, replace the upper paper switch.
drawer.

(39) Poor contact in the lower Reinsert the connector. Also check for continuity within the con-
The message re- paper switch connector nector cable. If none, remedy or replace the cable.
questing paper to be terminals.
loaded is shown
Defective lower paper Check if CN13-B18 on the main PCB goes low when the upper
when paper is
switch. paper switch is turned on with 5 V DC present at CN13-B19 on
present in the lower
the main PCB. If not, replace the lower paper switch.
drawer.

(40) Poor contact in the bypass Reinsert the connector. Also check for continuity within the con-
The message re- paper switch connector nector cable. If none, remedy or replace the cable.
questing paper to be terminals.
loaded is shown
Defective bypass paper Check if CN6-A6 on the main PCB goes low when the bypass
when paper is
switch. paper switch is turned on with 5 V DC present at CN6-A5 on the
present on the by-
main PCB. If not, replace the bypass paper switch.
pass tray.

(41) Poor contact in the upper Reinsert the connector. Also check for continuity within the con-
The size of paper in paper length switch con- nector cable. If none, remedy or replace the cable.
the upper drawer is nector terminals.
not displayed cor-
Defective upper paper Check if CN13-B2 on the main PCB goes low when the upper
rectly.
length switch. paper length switch is turned on. If not, replace the upper paper
length switch.

Poor contact in the upper Reinsert the connector. Also check for continuity within the con-
paper width switch con- nector cable. If none, remedy or replace the cable.
nector terminals.

Defective upper paper Check if the levels of CN12-3, CN12-4 and CN12-5 on the main
width switch. PCB change alternately when the width guide in the upper
drawer is moved. If not, replace the upper paper width switch.

1-5-56
 2DF

Problem Causes Check procedures/corrective measures

(42) Poor contact in the lower Reinsert the connector. Also check for continuity within the con-
The size of paper in paper length switch con- nector cable. If none, remedy or replace the cable.
the lower drawer is nector terminals.
not displayed cor-
Defective lower paper Check if CN13-A19 on the main PCB goes low when the lower
rectly.
length switch. paper length switch is turned on. If not, replace the lower paper
length switch.

Poor contact in the lower Reinsert the connector. Also check for continuity within the con-
paper width switch con- nector cable. If none, remedy or replace the cable.
nector terminals.

Defective lower paper Check if the levels of CN12-9, CN12-10 and CN12-11 on the
width switch. main PCB change alternately when the width guide in the lower
drawer is moved. If not, replace the lower paper width switch.

(43) Poor contact in the bypass Reinsert the connector. Also check for continuity within the con-
The printing width of paper length switch con- nector cable. If none, remedy or replace the cable.
the paper on the nector terminals.
bypass tray is not
Defective bypass paper Check if CN6-B11 on the main PCB goes low when the bypass
detected correctly.
length switch. paper length switch is turned on. If not, replace the bypass pa-
per length switch.

Poor contact in the bypass Reinsert the connector. Also check for continuity within the con-
paper width switch con- nector cable. If none, remedy or replace the cable.
nector terminals.

Defective bypass paper Check if the levels of CN6-A1, CN6-A2 and CN6-A3 on the main
width switch. PCB change alternately when the insert guide on the bypass
table is moved. If not, replace the bypass paper width switch.

(44) A piece of paper torn from Check and remove if any.

A paper jam in the copy paper is caught
paper feed, paper around feed switch 1/2/3,
conveying or fixing registration switch,
section is indicated feedshift switch or eject
when the main switch.
switch is turned on.
Defective feed switch 1. Run maintenance item U031 and turn feed switch 1 on and off
manually. Replace the switch if indication of the corresponding
switch on the operation panel is not displayed in reverse.

Defective feed switch 2. Run maintenance item U031 and turn feed switch 2 on and off
manually. Replace the switch if indication of the corresponding
switch on the operation panel is not displayed in reverse.

Defective feed switch 3. Run maintenance item U031 and turn feed switch 3 on and off
manually. Replace the switch if indication of the corresponding
switch on the operation panel is not displayed in reverse.

Defective registration Run maintenance item U031 and turn the registration switch on
switch. and off manually. Replace the switch if indication of the corre-
sponding switch on the operation panel is not displayed in re-
verse.

Defective eject switch. Run maintenance item U031 and turn the eject switch on and off
manually. Replace the switch if indication of the corresponding
switch on the operation panel is not displayed in reverse.

Defective feedshift switch. Run maintenance item U031 and turn the feedshift switch on
and off manually. Replace the switch if indication of the corre-
sponding switch on the operation panel is not displayed in re-
verse.

1-5-57
2DF

Problem Causes Check procedures/corrective measures

(45) Poor contact in the con- Reinsert the connector. Also check for continuity within the con-
The message re- nector terminals of safety nector cable. If none, remedy or replace the cable.
questing covers to switch 1 or 2.
be closed is dis-
Defective safety switch 1 Check for continuity across each switch. If there is no continuity
played when the
or 2. when the switch is on, replace it.
front cover and con-
veying cover are
closed.

(46) Wiring is broken, shorted Check for continuity. If none, repair.

Others. or makes poor contact.

Noise. Locate the source of noise and remove.

1-5-58
 2DF

1-5-5 Mechanical problems

Problem Causes/check procedures Corrective measures
(1) Check if the surfaces of the following rollers Clean with isopropyl alcohol.
No primary paper feed. or pulleys are dirty with paper powder: up-
per/lower forwarding pulleys, upper/lower
paper feed pulleys, upper/lower separation
pulleys, feed rollers, registration rollers, by-
pass forwarding pulleys, bypass paper feed
pulleys and bypass separation pulleys.

Check if the upper/lower forwarding pulleys, Check visually and replace any deformed
upper/lower paper feed pulleys or upper/ pulleys (see page 1-6-3).
lower separation pulleys is deformed.

Electrical problem with the following electro- See pages 1-5-53 and 54.
magnetic clutches: upper/lower paper feed
clutches, feed clutches 1/2/3, bypass paper
feed clutch and bypass feed clutch.

(2) Check if the surfaces of the right and left Clean with isopropyl alcohol.
No secondary paper registration rollers are dirty with paper pow-
feed. der.

Electrical problem with the registration See page 1-5-54.

clutch.

(3) Width guide in a drawer installed incorrectly. Check the width guide visually and correct
Skewed paper feed. or replace if necessary.

Deformed width guide in a drawer. Repair or replace if necessary .

Check if a pressure spring along the paper Repair or replace.

conveying path is deformed or out of place.

(4) Check if the scanner wire is loose. Reinstall the scanner wire (see page 1-6-
The scanner does not 16).
travel.
The scanner motor malfunctions. See page 1-5-52.

(5) Check if the upper or lower separation pulley Replace the upper or lower separation pul-
Multiple sheets of paper is worn. ley if it is worn (see page 1-6-3).
are fed at one time.
Check if the paper is curled. Change the paper.

(6) Check if the paper is excessively curled. Change the paper.

Paper jams.
Deformed guides along the paper conveying Repair or replace if necessary.
path.

Check if the contact between the right and Check visually and remedy if necessary.
left registration rollers is correct.

Check if the contact between the feed roller Check visually and remedy if necessary.
and feed pulley is correct.

Check if the press roller is extremely dirty or Clean or replace the press roller.
deformed.

Check if the contact between the heat roller Repair if any springs are off the separation
and its separation claws is correct. claws.

Check if the contact between the eject roller Check visually and remedy if necessary.
and pulley is correct.

The feedshift solenoid malfunctions. See page 1-5-54.

1-5-59
2DF

Problem Causes/check procedures Corrective measures

(7) Check if the developing unit is extremely Clean the developing unit.
Toner drops on the pa- dirty.
per conveying path.

(8) Check if the pulleys, rollers and gears oper- Grease the bearings and gears.
Abnormal noise is ate smoothly.
heard.
Check if the following electromagnetic Correct.
clutches are installed correctly: upper/lower
paper feed clutches, feed clutches 1/2/3,
bypass paper feed clutch and bypass feed
clutch.

1-5-60
 2DF

1-6-1 Precautions for assembly and disassembly

(1) Precautions
• Be sure to turn the main switch off and disconnect the power plug before starting disassembly.
• When handling PCBs, do not touch connectors with bare hands or damage the board.
• Do not touch any PCB containing ICs with bare hands or any object prone to static charge.
• Use only the specified parts to replace the fixing unit thermostat. Never substitute electric wires, as the copier may be
seriously damaged.
• Use the following testers when measuring voltages:
Hioki 3200
Sanwa MD-180C
Sanwa YX-360TR
Beckman TECH300
Beckman DM45
Beckman 330*
Beckman 3030*
Beckman DM850*
Fluke 8060A*
Arlec DMM1050
Arlec YF1030C
* Capable of measuring RMS values.
• Prepare the following as test originals:
1. NTC (new test chart)
2. NPTC (newspaper test chart)

1-6-1
2DF

(2) Running a maintenance item

Start

Enter “10871087” using

Maintenance mode is entered.
the numeric keys.

Enter the maintenance item

number using the cursor up/down keys
The maintenance item is
or numeric keys.
selected.

Press the start key.

The selected maintenance item is run.

Press the stop/clear key.

Yes Repeat the same

maintenance item?

No

Yes
Run another maintenance
item?

No

Enter “001” using the cursor

up/down keys or numeric keys Maintenance mode is exited.
and press the start key.

End

1-6-2
 2DF

1-6-2 Paper feed section

(1) Detaching and refitting the forwarding, paper feed and separation pulleys
Follow the procedure below to replace the forwarding, paper feed and separation pulleys.

Procedure
• Removing the primary paper feed units
1. Open the front cover and pull out the upper
and lower drawers.
2. Remove the one screw from each of the
primary paper feed units and then the units.

Primary paper feed units

Figure 1-6-1

• Removing the forwarding pulley

3. Remove the stopper.
4. Raise the forwarding pulley retainer in the
direction the arrow, and remove from the Forwarding pulley
primary paper feed unit. retainer

Stopper

Figure 1-6-2

5. Remove the stop ring, pull the forwarding Stop ring Forwarding pulley shaft
pulley shaft in the direction of the arrow, and
remove the forwarding pulley.

Forwarding pulley

Figure 1-6-3

1-6-3
2DF

• Removing the paper feed pulley Paper feed shaft

6. Remove the two stop rings.
Stop rings
7. Pull the paper feed shaft toward the rear of
the primary paper feed unit (in the direction of
the arrow) and remove the paper feed pulley.

Paper feed pulley

Figure 1-6-4

• Removing the separation pulley

8. Remove the stop ring on the rear of the
primary paper feed unit.
9. Pull the separation shaft toward the machine
rear (in the direction of the arrow) and
remove the separation pulley.

Stop ring
Separation shaft
Separation pulley

Figure 1-6-5

10. Replace the forwarding, paper feed and

separation pulleys.

Caution: Machine front Machine rear

• When fitting the forwarding pulley, orient it
correctly as shown in Figure 1-6-6.
• When fitting the separation pulley, keep the blue
end of the separation toward the machine rear.

11. Refit all removed parts.

Forwarding pulley

Figure 1-6-6

1-6-4
 2DF

(2) Detaching and refitting the bypass separation, bypass paper feed and bypass forwarding pulleys
Follow the procedure below to replace the bypass separation, bypass paper feed and bypass forwarding pulleys.

Procedure
• Removing the bypass unit
1. Remove the four screws holding the lower
right cover and then the cover.

Lower right cover

Figure 1-6-7

2. Remove the two screws holding the bypass Connectors

unit and disconnect the two connectors, and
then remove the unit.

Bypass unit

Figure 1-6-8

Bushing Stop ring

• Removing the bypass separation pulley
3. Reverse the bypass unit and remove the
spring and stop ring from the bypass
separation pulley and move the bushing Bypass separation shaft
inside.

Spring

Figure 1-6-9

1-6-5
2DF

4. Raise the bypass separation shaft as shown

in the diagram, remove the holder plate and
the bushing, and then remove the bypass
separation pulley. Holder plate
* Take care not to remove the spring pin of
Bushing
the gear at the rear of the bypass separation
shaft. If it is removed, refit it to its original
position.

Bypass separation shaft

Bypass separation pulley

Figure 1-6-10

• Removing the bypass paper feed pulley Bypass unit cover

5. Detach the connector of the bypass paper
switch and remove the wire from the three
clamps.
6. Remove the screw holding the bypass unit
cover and then the cover.

Clamps
Connector

Figure 1-6-11

7. Remove the stop ring and bushing on the Stop ring

front of the bypass paper feed shaft.

Bypass paper feed shaft

Bushing

Figure 1-6-12

1-6-6
 2DF

8. Raise the bypass paper feed shaft as shown Stop ring

in the illustration, remove the stop ring, and
Bypass paper feed shaft
then remove the bypass paper feed pulley.
Caution:
• When fitting the bypass paper feed pulley, keep
the blue end of the paper feed toward the
machine rear.

Bypass paper feed pulley

Figure 1-6-13
Stop ring
• Removing the bypass forwarding pulley Clamp
9. Remove the wire of the bypass paper feed
clutch from the clamp.
10. Remove the stop ring and bypass paper feed
clutch.
• When refitting, insert the cutout in the
bypass paper feed clutch over the stopper
on the copier.

Bypass paper feed clutch

Figure 1-6-14

Bushing
11. Remove the screw from the cam at the rear
of the bypass forwarding pulley shaft and Bypass forwarding pulley shaft
move the cam and the bushing toward the
inner side.

Cam

Figure 1-6-15

1-6-7
2DF

12. Remove the stop ring of the bypass paper Stop ring
Bushing
feed shaft and slide the bushing in the
direction of the arrow.

Bypass paper feed shaft

Figure 1-6-16

13. Slide the bypass forwarding pulley shaft Bypass forwarding pulley shaft
temporarily toward the rear side and then
raise it to remove from the bypass unit.
* Remove the shaft while raising the actuator
of the bypass paper switch.

Acutuator

Figure 1-6-17

14. Remove the bushing an cam on the rear of

the bypass forwarding pulley shaft.
Cam

Bypass forwarding pulley shaft

Bushing

Figure 1-6-18

1-6-8
 2DF

15. Remove the stop ring and slide the bypass

forwarding pulley with the forwarding pulley
Stop ring
retainer from the shaft to remove it.
16. Replace the bypass separation, bypass paper
feed and bypass forwarding pulleys. Bypass forwarding pulley

Forwarding pulley retainer

Figure 1-6-19

Bypass paper feed shaft

17. Refit all removed parts.
* Fit the bypass unit cover so that the film on
the cover is positioned under the bypass
paper feed shaft.

Films

Figure 1-6-20

1-6-9
2DF

(3) Adjustment after roller and clutch replacement

Perform the following adjustment after refitting rollers and clutches.

(3-1) Adjusting the leading edge registration of image printing

Make the following adjustment if there is a regular error between the leading edges of the copy image and original.

U066 U071
U034
(P. 1-6-29) (P. 1-4-16)

Caution:
Check the copy image after the adjustment. If the image is still incorrect, perform the above adjustments in maintenance
mode.

Procedure
Leading edge registration (50 ± 1 mm)

Start

Enter maintenance mode.

Correct image Output Output
example 1 example 2

Enter “034” using the numeric keys. Figure 1-6-21

Message display
Press the start key. RCL ON : Leading edge registration
RCL ON (DUP) : Leading edge registration for
duplex copying (second face)
Select the items to be adjusted. RCL ON (BYP) : Leading edge registration for
feeding the bypass

Press the interrupt key. Press the start key

The new setting is stored

Press the start key
to output a test pattern.

For output example 1, increase

Is the leading edge No the value using the cursor down key.
registration correct? For output example 2, decrease
the value using the cursor up key.
Yes Setting range (initial setting)
RCL ON: –30.0 – +30.0 (0.5)
Press the stop/clear key to exit RCL ON (DUP): –10.0 – +10.0 (0)
maintenance mode. RCL ON (BYP): –10.0 – +10.0 (-1.0)
Changing the value by 1 moves the
leading edge by 0.5 mm.
End

1-6-10
 2DF

(3-2) Adjusting the leading edge registration for memory image printing
Make the following adjustment if there is a regular error between the leading edge of the copy image and the leading
edge of the original during memory copying.

U053 U034 U065 U066

U407
(P. 1-4-12) (P. 1-6-10) (P. 1-6-27, 28) (P. 1-6-29)

Caution:
Before making the following adjustment, ensure the above adjustments have been made in maintenance mode.

Procedure

Start

Enter maintenance mode. Original Copy Copy

example 1 example 2

Enter “407” using the numeric keys.

Figure 1-6-22

Press the start key.

Press the interrupt key. Press the start key.

The new setting is stored.

Press the start key
and make a test copy.

For copy example 1, decrease the

Is the leading edge No value using the cursor down key.
registration correct? For copy example 2, increase the
value using the cursor up key.
Yes
Setting range: –10 – +10
Press the stop/clear key to Initilal setting: 0
exit maintenance mode. Changing the value by 1 moves
the leading edge by 1 mm.

End

1-6-11
2DF

(3-3) Adjusting the center line of image printing

Make the following adjustment if there is a regular error between the center lines of the copy image and original when
paper is fed from the drawer.

U067 U072
U034
(P. 1-6-30) (P. 1-4-17)

Caution:
Check the copy image after the adjustment. If the image is still incorrect, perform the above adjustments in maintenance
mode.

Procedure

Center line of printing

Start

Enter maintenance mode.

Enter “034” using the numeric keys. Correct image Output Output
example 1 example 2

Figure 1-6-23
Press the start key.
LSU OUT: Optical axis adjustment data
LSU OUT (DUP): Optical axis adjustment
Select the item to be adjusted. data for duplex copying
(second face)

Press the interrupt key. Press the start key.

The new setting is stored.

Press the start key to output a test

pattern.

For output example 1, decrease

No the value using the cursor down key.
Is the image correct?
For output example 2, increase
the value using the cursor up key.
Yes Setting range (initial setting)
LSU OUT: –10.0 – +10.0 (–7.2)
Press the stop/clear key to exit LSU OUT (DUP): –5.0 – +5.0 (0)
maintenance mode. Changing the value by 1 moves the
center line by 0.1 mm.

End

1-6-12
 2DF

(3-4) Adjusting the margins for printing

Make the following adjustment if the margins are not correct.

U403 U404
U402
(P. 1-6-31) (P. 1-4-49)

Caution:
Check the copy image after the adjustment. If the margins are still incorrect, perform the above adjustments in
maintenance mode.

Procedure

Start

Enter maintenance mode.

Enter “402” using the numeric keys.

LEAD : printer leading edge margin

AC : printer left/right margins
Press the start key. TRAIL : printer trailing edge margin
TRAIL (DUP) : printer trailing edge margin for
duplex copying (second face)
Select the items to be adjusted.

Press the interrupt key. Press the start key.

The new setting is stored.

Press the start key to output a test
pattern using A3/11" ¥ 17" paper.

Change the setting.

Increasing the value using the cursor up
No key makes the margin winder.
Are the margins correct?
Decreasing the value using the cursor
down key makes the margin narrower.
Yes
Setting range (initial setting)
Printer leading edge margin: 0 – +10 (3.7)
Yes Proceed to Printer left/right margin: –5 – +10 (2.7)
another mode? Printer trailing edge margin: –5 – +10 (4.2)
Printer trailing edge margin for duplex copying
(second face): –5 – +10 (3.5)
No Changing the value by 1 moves the center line by 0.5 mm.

Press the stop/clear key to

exit maintenance mode.
Printer leading edge margin
(6 ± 2.5 mm)
End
Ejection direction
(reference)
Printer Printer
left margin right margin
(6 ± 2.0 mm) (6 ± 2.0 mm)

Printer trailing edge margin Printer trailing edge margin

(6 ± 2.5 mm) for duplex copying (6 ± 2.5 mm)
Normal copy mode Duplex copy mode
(A3/11" × 17") (second face, A3/11" × 17")
Figure 1-6-24

1-6-13
2DF

(3-5) Adjusting the amount of slack in the paper

Make the following adjustment if the leading edge of the copy image is missing or varies randomly, or if the copy paper is
Z-folded.

Procedure

Start
Original Copy Copy
example 1 example 2
Enter maintenance mode.
Figure 1-6-25
Enter “051” using the numeric keys.
• Amount of slack in the paper at the registration roller
DECK DATA : Drawers
Press the start key. BYPASS DATA : Bypass tray
DUPLEX DATA : Duplex copying (second face)
Select "RESIST DATA" or • Amount of slack in the paper at the paper feed roller
"FEED DATA". BYPASS : Bypass tray
1ST DECK : Upper drawer
2ND DECK : Lower drawer
Select the item to be adjusted. 3RD DECK : Optional drawer 1
4TH DECK : Optional drawer 2
LCF : Optional large paper deck

Press the interrupt key. Press the start key.

The new setting is stored.
Press the start key
to make a test copy.

Is the leading
edge of the image missing Yes
or varying randomly (copy Increase the value using the cursor up key.
example 1)?

No

Is the copy
paper Z-folded (copy Yes
Decrease the value using the cursor down key.
example 2)?
Setting range (initial setting)
• Amount of slack in the paper at the registration roller
No DECK DATA : –30 – +20 (0)
BYPASS DATA : –30 – +20 (0)
DUPLEX DATA : –30 – +20 (0)
Press the stop/clear key to
exit maintenance mode. • Amount of slack in the paper at the paper feed roller
BYPASS : 0 – +255 (110)
1ST DECK : 0 – +255 (20)
2ND DECK : 0 – +255 (0)
End 3RD DECK : 0 – +255 (0)
4TH DECK : 0 – +255 (0)
LCF : 0 – +255 (0)

The greater the value,

the larger the amount of slack;
the smaller the value, the smaller
the amount of slack.

1-6-14
 2DF

1-6-3 Optical section

Contact glass
(1) Detaching and refitting the exposure lamp Upper rear cover
Replace the exposure lamp as follows.

Procedure
1. Remove the original cover or the DF.
2. Remove the upper right cover, upper front
cover, upper rear cover and contact glass. Upper right cover

Figure 1-6-26

3. Move the mirror 1 frame to the cutouts of the

machine.
Caution: When moving the mirror 1 frame, do
not touch the exposure lamp nor the inverter
PCB.
4. Remove the two screws holding the metal
plate on the rear of the machine and then the
plate.

Metal plate

Figure 1-6-27

5. Detach the exposure lamp connector from the

Exposure lamp
inverter PCB.
6. Remove the two screws holding the exposure
lamp and then the lamp.
7. Replace the exposure lamp and refit all the
removed parts.

Connector

Figure 1-6-28

1-6-15
2DF

(2) Detaching and refitting the scanner wires

Take the following procedure when the scanner wires are broken or to be replaced.

Caution:
After replacing the scanner wire, make a test copy and check the copy image. If the image is incorrect, perform the
adjustments (see pages 1-6-25 to 31).

(2-1) Detaching the scanner wires

Procedure
1. Remove the exposure lamp (see page 1-6- Scanner left cover
19).
2. Remove the upper left cover and scanner left
cover.

Upper left cover

Figure 1-6-29

3. Remove the inverter wire guide plate and Inverter wire guide plate
then the wire from the inverter PCB.

Inverter wire

Figure 1-6-30

4. Remove the screw holding each of the front

and rear wire retainers and then remove the
mirror 1 frame from the scanner unit.

Mirror 1 frame

Front wire retainer Rear wire retainer

Figure 1-6-31

1-6-16
 2DF

5. Unhook the round terminal of the scanner

wire from the scanner tension spring on the
left side of the scanner unit. Scanner tension spring
6. Remove the scanner wire.

Scanner wire

Scanner wire

Figure 1-6-32

(2-2) Fitting the scanner wires

Caution:
When fitting the wires, be sure to use those specified below.
Machine front: P/N 2AV1219 (black)
Machine rear: P/N 2AV1220 (gray)

Fitting requires the following tools:

Two frame securing tools (P/N 2AV6808)
Two scanner wire stoppers (P/N 3596811)

Procedure
1. Insert the locating ball on each of the scanner
wires into the hole in the respective scanner Scanner wire stoppers
wire drum and wind the scanner wire three
turns inward and four turns outward.
• With the locating ball as the reference point,
wind the shorter end of each of the wires
inward.
2. Secure the scanner wires using the scanner
wire stoppers.
Three turns inward Three turns inward

Locating ball
Four turns outward Four turns outward
Scanner wire drum

Figure 1-6-29

1-6-17
2DF

3. Insert the two frame securing tools into the Frame securing tools
positioning holes at the front and rear of the
scanner unit to pin the mirror 2 frame in
position.

Mirror 2 frame

Figure 1-6-34

4. Loop the inner ends of the scanner wires around the grooves in the pulleys at the right of the scanner unit,
winding from below to above. ......................................................................................................................... 1
5. Loop the scanner wires around the inner grooves in the pulleys on the mirror 2 frame, winding from above to
below. .............................................................................................................................................................. 2
6. Hook the round terminals onto the catches inside the scanner unit. .............................................................. 3

Figure 1-6-35

1-6-18
 2DF

7. Loop the outer ends of the scanner wires around the grooves in the scanner wire pulleys at the left of the
scanner unit, winding from below to above. .................................................................................................... 4
8. Loop the scanner wires around the outer grooves in the pulleys on the mirror 2 frame, winding from below to
above. ............................................................................................................................................................. 5
9. Wind the scanner wires around the grooves in the scanner wire guides at the left of the scanner unit. ........ 6
10. Hook the round terminals onto the scanner tension springs. .......................................................................... 7

Figure 1-6-36

11. Remove the scanner wire stoppers and frame

securing tools. Frame securing tools
12. Gather the scanner wires toward the locating
balls.
13. Move the mirror 2 frame from side to side to
correctly locate the wires in position.
14. Put the mirror 1 frame on the scanner rail and
move it toward the left side of the machine.
15. Insert the frame securing tools into the
positioning holes (leftmost holes) at the front
and the rear of the scanner unit and screw
the mirror 1 frame while securing both the
mirror 1 frame and the mirror 2 frame. Mirror 1 frame
16. Remove the two frame securing tools
17. Refit all the removed parts.

Figure 1-6-37

1-6-19
2DF

(3) Detaching and refitting the laser scanner unit

Take the following procedure when the laser scanner unit is to be checked or replaced.

Procedure
1. Remove the developing unit and drum unit
(see pages 1-6-32 and 34).
2. Remove the four screws holding the lower
right cover and then the cover.
Remove the three screws holding the eject
cover and then the cover.

Eject cover
Lower right cover

Figure 1-6-38

3. Remove the four screws holding the front

right cover and then the cover.

Front right cover

Figure 1-6-39

4. Remove the five screws holding the inner Inner cover

cover and then the cover.

Figure 1-6-40

1-6-20
 2DF

5. Remove the two screws and detach the Fan duct Connector
connector and then remove the fan duct.

Figure 1-6-41

6. Remove the six screws holding the toner Toner container retainer
container retainer and then the retainer.

Figure 1-6-42

7. Remove the four screws and detach the Connector

connector and then remove the laser scanner
unit.
8. Replace the laser scanner unit and refit all
the removed parts.

Laser scanner unit

Figure 1-6-43

1-6-21
2DF

(4) Adjusting the skew of the laser scanner unit (reference)

Perform the following adjustment if the leading and trailing edges of the copy image are laterally skewed (lateral
squareness not obtained).

Caution:
• After adjusting the skew of the laser scanner unit, make a test copy and check the copy image. If lateral squareness is
still not obtained, perform "(6) Adjusting the position of the ISU" (see page 1-6-25).

Procedure

Start

Enter maintenance mode.

Correct image Copy Copy

Enter “993” using the numeric keys. example 1 example 2

Figure 1-6-44
Press the start key.
Refit the laser scanner unit and
turn the main switch on.
Select “VTC-PG2”.

Press the interrupt key.

Press the start key and make

a copy at 100% magnification.
Turn the main switch off and carry out steps
1 to 6 of "(3) Detaching and refitting the laser
scanner unit" (see page 1-6-20).
* In case of copy sample 1
Loosen the screw in the direction of the
No white arrow (e).
Is the image correct?
Reduce the height of the LSU spacer in the
direction of the white arrow (e).
* In case of copy sample 2
Yes Tighten the screw in the direction of the
black arrow (\).
Press the stop/clear key to Increase the height of the LSU spacer in
exit maintenance mode. the direction of the black arrow (\)
(See figure 1-6-45).

End

Screw

LSU spacer

Figure 1-6-45

1-6-22
 2DF

(5) Detaching and refitting the ISU (reference)

Take the following procedure when the ISU is to be checked or replaced.

Caution:
After replacing the ISU, make a test copy and check the copy image. If the image is incorrect, perform the adjustments
(see pages 1-6-25 to 31).

ISU installation requires the following tools:

Two positioning pins (P/N 1856812)

Procedure
• Detaching the ISU
1. Remove the contact glass (see page 1-6-19).
2. Remove the rear and shield covers and
detach connector CN34 on the main PCB.

CN34
Figure 1-6-46

3. Remove the eight screws holding the ISU

cover and then the cover.

ISU cover

Figure 1-6-47

4. Remove the two screws holding the original Original size detection sensor retainer
size detection sensor retainer and then the
retainer.
5. Remove the four screws holding the ISU and
then the ISU.
6. Check or replace the ISU.

ISU

Figure 1-6-48
1-6-23
2DF

• Refitting the ISU

1. Fit the ISU using the two positioning pins. Positioning pins
2. Secure the ISU using the four screws.
3. Remove the two positioning pins and refit all
the removed parts.

ISU

Figure 1-6-49

1-6-24
 2DF

(6) Adjusting the position of the ISU (reference)

Perform the following adjustment if the leading and trailing edges of the copy image are laterally skewed (lateral
squareness not obtained).

Caution:
• Be sure to perform “(4-1) Adjusting the skew of the laser scanner unit” (page 1-6-22) first.
• Before making the following adjustment, output a VTC-PG2 pattern in maintenance item U993 to use as the original for
the adjustment.

Procedure

Start Copy Copy

Correct image
example 1 example 2

Place the original Figure 1-6-50

on the contact glass.

Press the start key and make

a test copy at 100% magnification. Refit the contact glass.

Remove the contact glass and adjust

the lateral squareness of the ISU by
No
Is the image correct? rotating the pin.
For copy example 1, rotate the pin in
the direction of the black arrow (\).
For copy example 2, rotate the pin in
Yes the direction of the white arrow (e).

End

Pin

Figure 1-6-51

1-6-25
2DF

(7) Adjusting the longitudinal squareness (reference)

Perform the following adjustment if the copy image is longitudinally skewed (longitudinal squareness not obtained).

Caution:
• Adjust the amount of slack in the paper (page 1-6-14) first. Check for the longitudinal squareness of the copy image,
and if it is not obtained, perform the longitudinal squareness adjustment.
• Before making the following adjustment, output a VTC-PG2 pattern in maintenance item U993 to use as the original for
the adjustment.

Procedure

Start

Original Copy Copy

example 1 example 2
Place the original
on the contact glass.
Figure 1-6-52

Retighten the two screws and

Press the start key and make refit the contact glass.
a test copy at 100% magnification.

Remove the contact glass.

Loosen the two screws and
adjust the position of the
No mirror 2 frame.
Is the image correct? For copy example 1,
move the frame in the direction of
the white arrow (e).
Yes For copy example 2,
move the frame in the direction of
the black arrow (b).

End

Screws

Mirror 2 frame

Figure 1-6-53

1-6-26
 2DF

(8) Adjusting magnification of the scanner in the main scanning direction

Perform the following adjustment if the magnification in the main scanning direction is not correct.

U053 U065 U065 U067

(main scanning (auxiliary scanning
(P. 1-4-12) direction) direction) (P. 1-6-28) (P. 1-6-30)

Caution:
Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode.
Also, perform “(9) Adjusting magnification of the scanner in the auxiliary scanning direction” (page 1-6-28) and “(11)
Adjusting the scanner center line” (page 1-6-30) after this adjustment.

Procedure

Start

Enter maintenance mode. Copy

Original Copy
example example 2
Enter “065” using the numeric keys.
Figure 1-6-54

Press the start key.

Select “MAIN SCAN ADJ”

(main scanning direction).

Press the interrupt key. Press the start key.

The new setting
Place an original and press is stored.
the start key to make a test copy.

For copy example 1, increase the

No value using the cursor up key.
Is the image correct? For copy example 2, decrease the
value using the cursor down key.

Yes Setting range: –25 – +25

Initial setting: 0
Press the stop/clear key to Changing the value by 1 changes
exit maintenance mode. the magnification by 0.1%.
Increasing the value makes
the image wider, and decreasing it
makes the image narrower.
End

1-6-27
2DF

(9) Adjusting magnification of the scanner in the auxiliary scanning direction

Perform the following adjustment if the magnification in the auxiliary scanning direction is not correct.

U053 U065 U065 U070

(main scanning (auxiliary scanning
(P. 1-4-12) direction) (P. 1-6-27) direction) (P. 1-4-15)

Caution:
Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode.

Procedure

Start

Enter maintenance mode.

Original Copy Copy
Enter “065” using the numeric keys. example 1 example 2

Figure 1-6-55
Press the start key.

Select “SUB SCAN ADJ”

(auxiliary scanning direction).

Press the interrupt key. Press the start key.

The new setting
Place an original and press is stored.
the start key to make a test copy.

For copy example 1, increase the

value using the cursor up key.
No For copy example 2, decrease the
Is the image correct?
value using the cursor down key.

Yes Setting range: –25 – +25

Initial setting: –2
Press the stop/clear key to Changing the value by 1 changes
exit maintenance mode. the magnification by 0.1%.
Increasing the value makes
the image longer, and decreasing it
make the image shorter.
End

1-6-28
 2DF

(10) Adjusting the scanner leading edge registration

Perform the following adjustment if there is regular error between the leading edges of the copy image and original.

U034 U071
U066
(P. 1-6-10) (P. 1-4-16)

Caution:
Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode.

Procedure

Scanner leading edge registration

Start

Enter maintenance mode.

Original Copy Copy

Enter “066” using the numeric keys. example 1 example 2

Figure 1-6-56
Press the start key.

ADJUST DATA: Scanner leading

edge registration
Select the item to be adjusted.
ADJUST DATA2: Scanner leading
edge registration for rotate copying

Press the interrupt key. Press the start key.

The new setting
is stored.
Place an original and press
the start key to make a test copy.

For copy example 1, decrease

Is the scanner No the value using the cursor down key.
leading edge registration For copy example 2, increase
correct? the value using the cursor up key.

Yes Setting range (initial setting)

ADJUST DATA: -32 - +32 (7)
Press the stop/clear key to ADJUST DATA2: -20 - +20 (0)
exit maintenance mode. Changing the value by 1 moves
the leading edge by 0.17 mm.

End

1-6-29
2DF

(11) Adjusting the scanner center line

Perform the following adjustment if there is a regular error between the center lines of the copy image and original.

U034 U072
U067
(P. 1-6-12) (P. 1-4-17)

Caution:
Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode.

Procedure

Scanner center line

Start

Enter maintenance mode.

Original Copy Copy

example 1 example 2
Enter “067” using the numeric keys.

Figure 1-6-57
Press the start key.

ADJUST DATA: Scanner axis

Select the item to be adjusted. adjustment data
ADJUST DATA2: Scanner axis
adjustment data for rotate copying

Press the interrupt key. Press the start key.

The new setting

is stored.
Place an original and press
the start key to make a test copy.

For copy example 1, decrease

Is the scanner No the value using the cursor up key.
center line correct? For copy example 2, increase
the value using the cursor down key.
Yes Setting range (initial setting)
ADJUST DATA: -39 - +39 (-18)
Press the stop/clear key to ADJUST DATA2: -39 - +39 (0)
exit maintenance mode. Changing the value by 1 moves
the leading edge by 0.17 mm.

End

1-6-30
 2DF

(12) Adjusting the margins for scanning an original on the contact glass
Perform the following adjustment if the margins are not correct.

U402 U404
U403
(P. 1-6-13) (P. 1-4-49)

Caution:
Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode.

Procedure
Start

Enter maintenance mode.

Enter “403” using the numeric keys.

Press the start key.

A MARGIN: scanner left margin
B MARGIN: scanner leading edge margin
Select the item to be adjusted. C MARGIN: scanner right margin
D MARGIN: scanner trailing edge margin

Press the interrupt key. Press the start key.

The new setting

is stored.
Press the start key
to make a test copy.

Change the setting.

Increasing the value using the cursor
No up key makes the margin wider.
Are the margins correct?
Decreasing the value using the
cursor down key makes the margin
Yes narrower.
Setting range (default)
Yes Scanner left margin: 0 – +10 (3)
Proceed to another mode? Scanner leading edge margin: 0 – +10 (1.5)
Scanner right margin: 0 – +10 (2)
Scanner trailing edge margin: 0 – +10 (2)
No Changing the value by one moves
the margin by 0.5 mm for all.

Press the stop/clear key to

exit maintenance mode.
Scanner leading edge margin (3 ± 1.5 mm)

End Ejection direction

(reference)
Scanner Scanner
left margin right margin
(2 ± 1.0 mm) (2 ± 1.0 mm)

Scanner trailing edge margin

(2 ± 1.0 mm)

Figure 1-6-58

1-6-31
2DF

1-6-4 Drum section

(1) Detaching and refitting the drum unit

Follow the procedure below to replace the drum unit.

Cautions:
• Avoid direct sunlight or strong light when detaching and refitting the drum unit.
• Never touch the drum surface when holding the drum unit.

Procedure
1. Open the conveying cover and remove the
developing unit (see page 1-6-34).
2. Remove the screws holding the drum unit
and then the unit.
3. Replace the drum unit and refit all the
removed parts.

Drum unit

Figure 1-6-59

(2) Detaching and refitting the main charger unit

Follow the procedure below to replace the main charger unit.

Procedure
1. Open the front cover. Hole
2. Pull out the main charger unit holding the
knob.
3. While pushing the hole with a sharp-pointed
object, remove the main charger unit.
4. Replace the main charger unit and refit all the
removed parts.

Knob Main charger unit

Figure 1-6-60

1-6-32
 2DF

(3) Detaching and refitting the drum separation claw assemblies

Follow the procedure below to replace the drum separation claw assemblies.

Procedure
1. Remove the drum unit (see page 1-6-32). Drum separation claw assemblies
2. Push the drum separation claw assemblies
with the minus driver from the top of the
corner hole and remove the claw assemblies.
3. Replace the drum separation claw
assemblies and refit all the removed parts.

Coner
hole

Figure 1-6-61

1-6-33
2DF

1-6-5 Developing section

(1) Detaching and refitting the developing unit

Follow the procedure below to replace the developing unit.

Procedure
1. Open the front cover.
2. Remove the toner container and toner
disposal tank.
3. Remove the screw and turn the developing
release lever in the direction of the arrow.

Developing release lever

Figure 1-6-62

4. Remove the developing unit.

5. Replace the developing unit and refit all the
removed parts.

Developing unit

Figure 1-6-63

1-6-34
 2DF

1-6-6 Transfer section

(1) Detaching and refitting the transfer roller assembly

Follow the procedure below to replace the transfer roller assembly.

Procedure
1. Open the conveying cover. Transfer roller assembly
2. While holding down the projection, slide the
transfer roller assembly toward the front to
remove it.
3. Replace the transfer roller assembly and refit
all the removed parts.

Projection

Figure 1-6-64

1-6-35
2DF

1-6-7 Fixing section

(1) Detaching and refitting the fixing unit

Follow the procedure below to check or replace the fixing unit.

Procedure
1. Open the front cover and conveying cover.
2. Remove the three screws holding the front
left cover and then the cover.

Front left cover

Figure 1-6-65

3. Remove the screw holding the fixing unit and

then the unit.
4. Check or replace the transfer roller assembly
and refit all the removed parts.

Fixing unit
Figure 1-6-66

(2) Detaching and refitting the heat roller separation claws Upper fixing cover
Follow the procedure below to replace the heat roller separation claws.

Procedure Claw
1. Remove the fixing unit.
2. Remove the two screws and detach the Claw
upper fixing cover while holding the four
claws.
Claw

Claw

Figure 1-6-67

1-6-36
 2DF

3. Remove the heat roller separation claws from

the upper fixing cover.
4. Replace the heat roller separation claws and
refit all the removed parts.

Heat roller separation claws

Figure 1-6-68

(3) Detaching and refitting the press roller

Follow the procedure below to replace the press roller. Press spring

Procedure
1. Remove the fixing unit (see page 1-6-36).
2. Remove the upper fixing cover (see page 1-
6-36).
3. Remove the front and rear press springs.
Press spring

Figure 1-6-69

4. Detach the press roller from the fixing unit Bearing

and remove the front and rear bearings.
5. Replace the press roller and refit all the
Press roller
removed parts.

Bearing

Figure 1-6-70

1-6-37
2DF

(4) Detaching and refitting the fixing heater M and S

Follow the procedure below to replace the fixing heater M and S.

Procedure
1. Remove the fixing unit (see page 1-6-36).
2. Remove the upper fixing cover (see page 1-
6-36).
3. Remove the screw on the front of the fixing
unit thermostat and two screws on the rear of
the fixing unit.
Fixing unit thermostat Screws

Figure 1-6-71

4. Pull out the fixing heater M and S from the

fixing unit.

Fixing heater M

Fixing heater S

Figure 1-6-72

5. Replace the fixing heater M and S, and refit

all the removed parts. Fixing heater M
* When refitting the fixing heaters, take care
not to refit fixing heaters M and S to wrong
positions. Refit fixing heater M (black wire) to
the fixing unit housing with mark B and fixing
heater S (white wire) to the housing with mark
W.

Fixing heater S
Figure 1-6-73

1-6-38
 2DF

(5) Detaching and refitting the heat roller

Follow the procedure below to replace the heat roller.

Procedure
1. Remove the fixing unit (see page 1-6-36). Fixing gear
2. Remove the upper fixing cover (see page 1-
6-36).
3. Remove the press roller and fixing heater M
and S (see pages 1-6-37 and 38).
4. Remove the fixing gear.

Figure 1-6-74

5. Detach the heat roller from the fixing unit. C ring

Remove the C ring, gear, bearing and Bearing
bushing on the rear of the heat roller and then
remove the C ring, bearing and bushing on
the front.
6. Replace the heat roller and refit all the Heat roller
removed parts.
Gear
Bushing Bushing

C ring

Bearing

Figure 1-6-75

1-6-39
2DF

(6) Detaching and refitting the fixing unit thermistor

Follow the procedure below to replace the fixing unit thermistor.

Procedure
1. Remove the fixing unit (see page 1-6-36).
2. Remove the upper fixing cover (see page 1-
6-36).
3. Disconnect the connector of the fixing unit
thermistor.

Connector

Figure 1-6-76

4. Remove the heat roller (see page 1-6-39). Fixing unit thermistor
5. Turn the fixing unit over and remove the
screw to remove the fixing unit thermistor.

Figure 1-6-77

1-6-40
 2DF

1-7-1 Upgrading the firmware on the main PCB

Firmware upgrading requires the following tools:

Compact Flash (Products manufactured by SANDISK are recommended.)

NOTE
When writing data to a new Compact Flash from a computer, be sure to format it in advance.
(For formatting, insert a Compact Flash and select a drive.)
For a desktop computer, connect a Compact Flash card reader/writer to it. For a notebook computer, use a PC card adapter
or a connection portion only for Compact Flash.

Procedure
1. Turn the main switch off and disconnect the
power plug.
2. Remove the middle right cover.
Insert it with its rear side toward the front side
of the machine.
3. Insert Compact Flash in a notch hole of the
copier.
Notch hole
4. Insert the power plug and turn the main
switch on. Upgrading firmware starts for 3
minutes.
Caution:
Never turn the main switch off during
upgrading.
5. "Completed" is displayed on the touch panel
when upgrading is complete.
6. Turn the main switch off and disconnect the
power plug. Compact
7. Remove Compact Flash from the copier and Flash
refit the middle right cover.
8. Insert the power plug and turn the main
switch on.
Figure 1-7-1

1-7-1
2DF

1-7-2 Replacing the backup ROM

Replacing the backup ROM requires the following tools:

ROM replacing tool

Procedure
1. Insert the claw of the ROM replacing tool into
the groove of the backup ROM.
2. Press the ROM replacing tool from both the ROM replacing tool
right and the left sides. The backup ROM is
removed.
3. Replace the backup ROM.

Backup ROM

Figure 1-7-3

1-7-2
 2DF

1-7-3 Adjustment-free variable resistors (VR)

The variable resistors listed below are set at the factory prior to shipping and cannot be adjusted in the field.
• High-voltage transformer PCB: VR42, VR201, VR204, VR205
• Inverter PCB: VR1, VR2

1-7-3
 2DF

2-1-1 Paper feed section

The paper feed section consists of the primary feed and secondary feed subsections. Primary feed conveys paper from
the upper drawer, lower drawer or bypass tray to the left and right registration rollers, at which point secondary feed
takes place and the paper travels to the transfer section in sync with the printing timing.

Each drawer consists of a lift driven by the lift motor and other components. Each drawer can hold up to 500 sheets of
paper. Paper is fed from the drawer by the rotation of the forwarding pulley and paper feed pulley. The separation pulley
prevents multiple sheets from being fed at one time, via the torque limiter.

Figure 2-1-1 Paper feed from the upper and lower drawers

1 Upper forwarding pulley & Left registration roller

2 Lower forwarding pulley * Registration switch (RSW)
3 Upper paper feed pulley ( Feed roller 1
4 Lower paper feed pulley ) Feed pulley
5 Upper separation pulley ⁄ Feed switch 1 (FSW1)
6 Lower separation pulley ¤ Feed roller 2
7 Upper paper switch (PSW-U) ‹ Feed pulley
8 Lower paper switch (PSW-L) › Feed switch 2 (FSW2)
9 Upper lift limit switch (LICSW-U) fi Feed roller 3
0 Lower lift limit switch (LICSW-L) fl Feed pulley
! Upper paper width switch (PWSW-U) ‡ Feed switch 3 (FSW3)
@ Lower paper width switch (PWSW-L) ° Front registration guide
# Upper paper length switch (PLSW-U) · Paper conveying guide
$ Lower paper length switch (PLSW-L) ‚ Vertical paper conveying guide 1
% Drawer lift ΠVertical paper conveying guide 2
^ Right registration roller

2-1-1
2DF

The bypass table can be hold up to 200 sheets of paper at one time. Paper is fed from the bypass table by the rotation of
the bypass forwarding pulley and bypass paper feed pulley. Also during paper feed, the bypass separation pulley
prevents multiple sheets from being fed at one time by the torque limiter.

Figure 2-1-2 Paper feed from the bypass table

1 Bypass table
2 Bypass lift guide
3 Bypass forwarding pulley
4 Bypass paper feed pulley
5 Bypass separation pulley
6 Bypass feed roller 1
7 Bypass feed pulley
8 Bypass feed roller 2
9 Bypass feed pulley
0 Bypass paper switch (BYPPSW)
! Bypass feed switch (BYPFSW)
@ Bypass paper length switch (BYPPLSW)
# Bypass paper width switch (BYPPWSW)

2-1-2
 2DF

MPCB

RCL CN16-B6

RSW CN10-A2

FCL1 CN11-14

FSW1 CN11-17

PSW-U LICSW-U CN13-B9

PFCL-U CN13-B12
CN16-B1

FCL2 CN13-A12

FSW2 PSW-L LICSW-L CN13-B15

PFCL-L CN13-B18
CN16-B4

FCL3 CN13-A5

FSW3 CN13-A2

CN13-A7

Figure 2-1-3 Paper feed section block diagram (upper and lower drawers)

BYPFCL BYPPFCL

BYPPSW
BYPFSW
CN9-A2

CN6-A11

CN6-A6

CN6-A9

MPCB

Figure 2-1-4 Paper feed section block diagram (bypass table)

2-1-3
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Image ready

Start key
100 ms
DM

48 ms 124 ms
RCL

30 ms
FCL1
75 ms
17 ms
PFCL-U

RSW

FSW1

Timing chart 2-1-1 Paper feed from the upper drawer

a:100 ms after the start key is pressed, the drive motor (DM) turns on to start the drive for the paper feed section. At the
same time, the upper paper feed clutch (PFCL-U) turns on, and the forwarding and paper feed pulleys rotate to start
primary paper feed.
b:75 ms after the leading edge of the paper turns the feed switch 1 (FSW1) on, the feed clutch 1 (FCL1) turns on and
the feed roller 1 rotates.
c:17 ms after the leading edge of the paper turns the registration switch (RSW) on, the upper paper feed clutch (PFCL-
U) and feed clutch 1 (FCL1) turn off.
d: 48 ms after image ready signal turns on, the registration clutch (RCL) turns on, and the right registration roller rotates
to start secondary paper feed. At the same time, feed clutch 1 (FCL1) turns on for 30 ms.
e: 124 ms after the trailing edge of the paper turns the registration switch (RSW) off, the registration clutch (RCL) turns
off.

Image ready

Start key
100 ms
DM

48 ms 124 ms
RCL

BYPPFCL
280 ms
300 ms

BYPFCL
100 ms 35 ms

RSW

Timing chart 2-1-2 Paper feed from the bypass tray

a: 100 ms after the start key is pressed, the drive motor (DM) turns on to start the drive for the paper feed section.
b: 300 ms after the drive motor (DM) turns on, the bypass paper feed clutch (BYPPFCL) turns on.
c: 100 ms after the bypass paper feed clutch (BYPPFCL) turns on, the bypass feed clutch (BYPFCL) turns on.
d: 280 ms after the bypass feed clutch (BYPFCL) turns on, the bypass paper feed clutch (BYPPFCL) turns off.
e: 35 ms after the registration switch (RSW) turns on, the bypass feed clutch (BYPFCL) turns off.
f: 48 ms after image ready signal turns on, the registration clutch (RCL) turns on, and the right registration roller rotates
to start secondary paper feed.
g:124 ms after the trailing edge of the paper turns the registration switch (RSW) off, the registration clutch (RCL) turns
off.

2-1-4
 2DF

2-1-2 Main charging section

The main charging section consists of the main charger assembly, drum and so on. The drum is electrically charged
uniformly (500 µA) by means of a grid to form a latent image on the surface.
The main charger unit charges the drum so that a latent image is formed on the surface, the shield grid ensuring the
charge is applied uniformly.

Main charger unit

Tungsten wire

Drum

Shield grid

Figure 2-1-5 Main charging section

MC REM MC
CN1-4 CN7-4

24 V DC
CN1-2 CN7-2

Grid

HVTPCB
MPCB Drum

ZENER PCB

Figure 2-1-6 Main charging section block diagram

2-1-5
2DF

Start key
100 ms
DM

MC REM
100 ms 5s
EM 409 ms

ESW

Timing chart 2-1-3 Main charging section operation

a:100 ms after the start key is pressed, the drive motor (DM) turns on.
b:100 ms after the drive motor (DM) turns on, main charging (MC REM) starts.
c:The leading edge of the paper turns on the eject switch (ESW), and at the same time the eject motor (EM) turns on.
d:409 ms after the paper is ejected and the eject switch (ESW) turns off, main charging (MC REM) ends.
e: 5 s after the end of main charging (MC REM), the eject motor (EM) turns off.

2-1-6
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2-1-3 Optical section

The optical section consists of the scanner, mirror frame and image scanning unit for scanning and the laser scanner unit
for printing.

Figure 2-1-7 Optical section

1 Mirror 1 frame
2 Mirror 2 frame
3 Exposure lamp (EL)
4 Mirror 1
5 Mirror 2
6 Mirror 3
7 Lens
8 CCD PCB (CCDPCB)
9 Image scanning unit
0 Laser scanner unit (LSU)
! Scanner motor (SM)
@ Scanner home position switch (SHPSW)

2-1-7
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(1) Original scanning

The original image is illuminated by the exposure lamp (EL) and scanned by the CCD PCB (CCDPCB) in the image
scanning unit via the three mirrors, the reflected light being converted to an electrical signal.
The scanner and mirror frames travel to scan on the optical rails on the front and rear of the machine to scan from side to
side. The speed of the mirror frames is half the speed of the scanner.
When the DF* is used, the scanner and mirror frames stop at the DF original scanning position to start scanning.
* Optional.

Original

SHPSW
ODSW

SM EL
CCDPCB
CN5-2

CN4-2

CN2-1-
CN2-6

CN3-1- CN1-1-
CN3-2 CN1-2

SDPCB
CN1-14
CN1-1-

INPCB
CN37-14

CN34-15
CN37-1-

CN34-1-
MPCB

Figure 2-1-8 Optional section block diagram

Start key
338 P
200 P
Fwd. rotation
SM 472 P 10394 P
Rev. rotation

9922 P 200 P
SHPSW

FVSYNC signal

Timing chart 2-1-4 Scanner operation

a: When the start key is pressed, the scanner motor (SM) reverses for 338 pulses and then rotates forward.
b: 472 pulses after the scanner motor (SM) starts rotating forward, the FVSYNC signal turns on for 9922 pulses for
scanning.
c: The scanner motor (SM) reverses for 10394 pulses and then rotates forward.
d: 200 pulses after the scanner home position switch (SHPSW) turns on, the scanner motor (SM) reverses.
e: 200 pulses after the scanner home position switch (SHPSW) turns off, the scanner motor (SM) turns off, and the
scanner stops at its home position.

2-1-8
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(2) Image printing

The image data scanned by the CCD PCB (CCDPCB) is processed on the main PCB (MPCB) and transmitted as image
printing data to the laser scanner unit (LSU). By repeatedly turning the laser on and off, the laser scanner unit forms a
latent image on the drum surface.

Figure 2-1-9 Laser scanner unit (1)

1 Laser diode PCB (LDPCB)

2 Collimator lens
3 Cylindrical lens
4 Polygon motor (PM)
5 Polygon mirror
6 fθ lens
7 Mirror
8 Mirror
9 BD sensor mirror
0 Cylindrical correcting lens
! BD sensor

2-1-9
2DF

Drum

Figure 2-1-10 Laser scanner unit (2)

1 Laser diode: Generates the laser beam which forms a latent image on the drum.
2 Collimator lens: Collimates the diffused laser beam emitted from the laser diode to convert it into a cylindrical beam.
3 Cylindrical lens: Shapes the collimated laser beam to suit the printing resolution.
4 Polygon mirror: Six-facet mirror that rotates at approximately 28031 rpm with each face reflecting the laser beam
toward the drum for one main-direction scan.
5 fθ lens: Corrects for non-linearity of the laser beam scanning speed on the drum surface, keeps the beam diameter
constant and corrects for the vertical alignment of the polygon mirror to ensure that the focal plane of the laser beam
is on the drum surface.
6 Mirror: Reflects the laser beam and changes the irradiation direction.
7 Mirror: Reflects the laser beam and changes the irradiation direction.
8 BD sensor mirror: Reflects the laser beam to the BD sensor to generate the main-direction (horizontal) sync signal.
9 Cylindrical correcting lens: Corrects for the deviation of the laser beam reflected by the BD sensor mirror to the BD
sensor.
0 BD sensor: Detects the beam reflected by the BD sensor mirror, outputting a signal to the main PCB (MPCB) to
provide timing for the main-direction sync signal.

2-1-10
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The dimensions of the laser beam are as shown in Figure 2-1-11.

Less than 100 µm

Less than 85 µm

Figure 2-1-11

Scanning in the main direction is provided by the rotating polygon mirror, while scanning in the auxiliary direction is
provided by the rotating drum, forming a static latent image on the drum.
The static latent image of the letter “A”, for example, is formed on the drum surface as shown in Figure 2-1-12. Electrical
charge is dissipated on the area of the drum surface irradiated by the laser.
The focal point of the laser beam is moved line by line, and adjacent lines slightly overlap each other.

Main scanning direction

Auxilary scanning
direction

: laser beam is on

Figure 2-1-12

2-1-11
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2-1-4 Developing section

The developing section consists of the developing unit and the toner container.
The developing unit consists of the developing roller where a magnetic brush is formed, the doctor blade and the
developing spirals that agitate the toner.
When the toner sensor (TNS) detects a low toner level in the developing unit, the toner replenishment signal is output to
the main PCB (MPCB). The main PCB (MPCB) that has received the signal turns on the toner replenishment solenoid
(TNFSOL) and replenishes toner from the toner container to the developing unit.
Also, the toner container sensor (TCS) checks whether or not toner remains in the toner container.

1 Developing unit housing

2 Developing roller
3 Toner sensor (TNS)
4 Doctor blade
5 Right developing spiral
6 Left developing spiral

Figure 2-1-13 Developing section

Developing roller

Left developing spiral

Right developing spiral

Developing paddle

Flow of the toner

Figure 2-1-14 Flow of the toner

2-1-12
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(1) Formation of magnetic brush

The developing roller consists of a magnet roller with four poles and a sleeve roller. Rotation of the sleeve roller around
the magnet roller entrains toner, which in turn forms a magnetic brush at pole N1 on the magnet roller. The height of the
magnetic brush is regulated by the doctor blade; the developing result is affected by the position of the poles on the
magnet roller and the position of the doctor blade.
A developing bias voltage generated by the high-voltage transformer PCB (HVTPCB) is applied to the developing roller
to provide image contrast.

Doctor blade
A S1

90 88

N1 N2

Developing roller 88

S2

N1:870 × 10-4T
A: Distance between the doctor blade and developing roller; 0.23 to 0.35 mm
N2:420 × 10-4T
S1:700 × 10-4T
S2:910 × 10-4T

Figure 2-1-15 Forming a magnetic brush

TCS
CN9-A5 TCS

TNFSOL
CN9-B2 TNFSOL

MPCB
TNS

TNS SIG
CN9-A9

DB REM
CN7-1 CN1-1
24 V DC DB
CN7-2 CN1-2

HVTPCB

Figure 2-1-16 Developing section block diagram

2-1-13
2DF

(2) Computing the absolute humidity

The humidity sensor (HUMSENS) converts the relative humidity detected by the humidity sensing element into a voltage
and sends it to the main PCB (MPCB). The main PCB (MPCB) computes the absolute humidity based on this HUMSENS
signal and the temperature (ETTH signal) detected by the external temperature thermistor (ETTH).

MPCB

HUMPCB
ETTH
1 ETTH
CN16-B10

2 GND
Humidity CN16-B9
sensing element

3 HUMSENS CN16-B8

HUMSENS
4 5 V DC
CN16-B7

Figure 2-1-17 Absolute humidity computation block diagram

2-1-14
 2DF

(3) Single component developing system

This machine uses the single component developing system, and reversal processing is performed with a + charged
drum (a-Si) and a + charged magnetic toner.
With the single component developing system, toner is electrically charged by friction with the developing sleeve and +
charged when it passes through the magnetic doctor blade. The toner that has passed through the magnetic doctor
blade forms a uniform layer on the developing sleeve. When the toner layer comes to the location where the developing
sleeve is the nearest to the drum, toner moves between the drum and the developing sleeve by an electric field of the
magnetic pole. Then, when the developing sleeve rotates and passes through the nearest location to the drum, on the
portion of the drum that has been exposed to light, toner is attracted toward the drum by potential difference between the
developing bias and the drum surface and development is performed. On the other hand, on the portion of the drum that
has not been exposed to light, toner is attracted toward the sleeve and development is not performed. When toner
comes to an area where the gap between the drum and the developing sleeve is large, an electric field disappears and
toner does not leave the developing sleeve. Development is complete.

Magnetic toner blade

Toner

South pole

Drum North pole

Developing sleeve

Figure 2-1-17-1 Single component developing system

2-1-14-1
2-1-15
2DF

Developing bias parameters

For the bias to the developing sleeve, an alternating
current (AC) is applied. Parameters for the
developing bias are shown below. V Duty

Vp-p: Difference between the maximum and the

minimum of applied voltage
1.72 kV (fixed)
Vf: Frequency
Typically 2.6 kHz. This value varies depending on the
preset value of the drum surface potential and the Vo
environmental correction. (Can be adjusted with the
Vdc Vp-p
maintenance item U101.)
Duty: Ratio of time where + voltage is applied in a VL
0
cycle
Typically 45%. This value varies depending on the
preset value of the drum surface potential and the
environmental correction. (Can be adjusted with the
maintenance item U101.)
Vde: Developing shift bias potential
160 V (Can be changed to 180 V with the
maintenance item U101) Vf

Supplementation
V0: Drum surface potential on non-image area (area
not exposed to light)
VL: Drum surface potential on image area (area
exposed to light) Figure 2-1-17-2 Developing bias waveform

2-1-16
2-1-14-2
 2DF

2-1-5 Transfer and separation sections

The transfer and separation section consists mainly of the transfer roller, separation electrode and drum separation
claws.
A high voltage generated by the high-voltage transformer PCB (HVTPCB) is applied to the transfer roller for transfer
charging (100 µA).
aper after transfer is separated from the drum by applying separation bias that is output from the high-voltage
transformer PCB (HVTPCB) to the separation electrode (60 or 10 µA depending on the paper).

Drum separation claw

Separation electrode

Drum

Transfer roller

Figure 2-1-18 Transfer and separation sections

Separation
SC electrode
TC REM Drum
CN7-9 CN1-9
SC REM
CN7-6 CN1-6
Transfer roller
24 V DC
CN7-2 CN1-2 TC

HVTPCB
MPCB

Figure 2-1-19 Transfer and separation sections block diagram

2-1-15
2DF

Image ready
Secondary paper Secondary paper feed end
feed start

48 ms 124 ms
RCL

190 ms
EM

RSW

ESW

TC REM 323 ms

SC REM
1 ms 1 ms

Timing chart 2-1-5 Transfer and separation sections operation

a: 190 ms after the registration clutch (RCL) turns on to start secondary paper feed, transfer charging (TC REM) starts.
b: 1 ms after transfer charging (TC REM) starts, separation bias (SC REM) turns on.
c: 323 ms after the trailing edge of the paper turns the registration switch (RSW) off, transfer charging (TC REM) ends.
d: 1 ms after transfer charging (TC REM) ends, separation bias (SC REM) turns off.

2-1-16
 2DF

2-1-6 Cleaning and charge erasing sections

The cleaning section consists of the cleaning blade that removes residual toner from the drum surface after the transfer
process, and the cleaning spiral that carries the residual toner back to the waste toner tank.
The cleaning lamp (CL) consists of LEDs and removes residual charge on the drum before main charging.
Also the toner quantity in the waste toner tank is sensed with the overflow sensor (OFS).

Cleaning roller
Cleaning spiral Cleaning lamp (CL)

Cleaning blade

Drum

Figure 2-1-20 Cleaning and charge erasing sections

CL REM
CN9-B7
CL

Drum

MPCB

OFS
OFS CN6-B2

Figure 2-1-21 Cleaning and charge erasing sections block diagram

2-1-17
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2-1-7 Fixing section

The fixing section consists of the parts shown in Figure 2-1-22. When paper reaches the fixing section after the transfer
process, it passes between the press roller and heat roller, which is heated by fixing heaters M or S (FH-M or FH-S).
Pressure is applied by the fixing unit pressure springs so that the toner on the paper is melted, fused and fixed onto the
paper. The heat roller is heated by fixing heaters M or S (FH-M or FH-S) inside it; its surface temperature is detected by
the fixing unit thermistor (FTH) and is regulated by the fixing heaters turning on and off.
If the fixing section becomes abnormally hot, fixing unit thermostat (FTS) operates shutting the power to the fixing
heaters off. When the fixing process is completed, the paper is separated from the heat roller by its separation claws and
is conveyed from the copier to eject and switchback section.

1 Upper fixing unit cover

2 Fixing housing
3 Heat roller
4 Heat roller separation claw
5 Fixing heater M (FH-M)
6 Fixing heater S (FH-S)
7 Fixing unit thermostat (FTS)
8 Fixing unit thermistor (FTH)
9 Press roller
0 Press roller separation claw

Figure 2-1-22 Fixing section

FTS

Heat roller

CN5-3
FH-M

FH-S

CN5-1 ILSW
CN5-2
PSPCB

FTH
CN2-2

CN2-1
FH-M REM

FH-S REM

5 V DC
FTH
CN1-5

CN1-6

CN10-A6
CN10-A5

MPCB

Figure 2-1-23 Fixing section block diagram

2-1-18
 2DF

Fixing temperature 165°C/329°F

(secondary stabilization)

Fixing temperature 110°C/230°F

(primary stabilization) Copying enabled Aging end

MSW

500 ms
FH-M
13 s
500 ms
FH-S

DM 30 s
100 ms

DB REM
900 ms

CFM
Half speed Full speed 15 s Half speed
(for second speed)

CFM
Full speed
(for first speed)

1s
PM

10 s
TC REM

Timing chart 2-1-6 Fixing section operation

a: 500 ms after the main switch (MSW) is turned on, fixing heater M (FH-M) turns on to heat the heat roller. At the same
time, cooling fan motor (CFM) turns on.
* The fan motor for second speed rotates at half speed and the motor for first speed rotates at full speed.
b: 500 ms after fixing heater M (FH-M) turns on, fixing heater S (FH-S) turns on.
c: 1 s after fixing heater M (FH-M) turns on, the polygon motor (PM) of the laser scanner unit turns on.
d: When the fixing temperature reaches 110°C/230°F, the copier enters primary stabilization, and fixing heater M (FH-
M) turns off temporarily and turns on again after 13 s.
e: 100 ms after the primary stabilization, the drive motor (DM) turns on. Also the cooling fan motor (for second speed)
switches to full speed rotation.
f: 900 ms after the drive motor (DM) turns on, the developing bias (DB REM) turns on and at the same time transfer
charging (TC REM) starts.
g: When the fixing temperature reaches 165°C/329°F, the copier enters secondary stabilization. Fixing heaters M and S
(FH-M and FH-S) are turned on and off to keep the fixing temperature at 165°C/329°F and aging starts.
h: 10 s after copying is enabled, transfer charging (TC REM) ends.
i: 30 s after the secondary stabilization, the drive motor (DM) turns off and the aging ends.
j: 15 s after the drive motor (DM) turns off, the cooling fan motor (for second speed) switches to half speed rotation.

2-1-19
2DF

2-1-8 Eject and switchback sections

The eject and switchback sections eject paper on which fixing has ended with the eject roller that is rotated by forward
rotation of the eject motor.
In duplex copying, paper is turned over by reverse rotation of the eject motor. When paper is transferred to the job
separator or the internal finisher, the feedshift solenoid (FSSOL) is turned on to activate the feedshift guide to switch the
paper transfer path.

1 Feedshift guide
2 Eject roller
3 Eject pulley
4 Switchback roller
5 Switchback pulley
6 Eject switch (ESW)
7 Feedshift switch (FSSW)
8 Feedshift solenoid (FSSOL)

Figure 2-1-24 Eject and switchback sections

EM

FSSW FSSOL

ESW
CN16-B11-
CN16-A1-
CN16-A5

CN16-A11
CN16-B14
CN16-A2

MPCB

Figure 2-1-25 Eject and switchback sections block diagram

2-1-20
 2DF

Secondary paper feed end

RCL

EM Fwd. rotation Rev. rotation Fwd. rotation

50 ms 50 ms
RSW
40 ms 518 ms
ESW

FSSW

Timing chart 2-1-7 Eject and switchback sections operation

a: The leading edge of paper (front face) turns on the eject switch (ESW), and at the same time the eject motor (EM)
starts forward rotation.
b: 40 ms after passing of the trailing edge of paper turns off the eject switch (ESW), the eject motor (EM) turns off for 50
ms and then starts reverse rotation.
c: The leading edge of paper (reverse face) turns on the eject switch (ESW), and at the same time the eject motor (EM)
turns off for 50 ms and then starts forward rotation.
d: 518 ms after passing of the trailing edge of the paper turns off the eject switch (ESW), the eject motor (EM) turns off.

2-1-21
 2DF

2-2-1 Electrical parts layout

(1) PCBs

8 7
5 6
4

Figure 2-2-1 PCBs

; Machine front

Machine inside

Machine rear

1. Main PCB (MPCB) ....................................... Controls the other PCBs, electrical components and optional devices.
2. Power source PCB (PSPCB) ....................... Generates +24 V DC, 12 V DC and 5V DC; controls the fixing heater.
3. High-voltage transformer PCB
(HVTPCB) .................................................... Main charging. Generates developing bias and high voltages for
transfer.
4. Scanner drive PCB (SDPCB) ...................... Controls the scanning section.
5. Inverter PCB (INPCB) .................................. Controls the exposure lamp.
6. CCD PCB (CCDPCB) .................................. Reads the image off originals.
7. Right operation unit PCB (OPCB-R) ............ Consists of the operation keys and display LEDs.
8. Left operation unit PCB (OPCB-L) ............... Controls touch panel and LCD indication.
9. Laser diode PCB (LDPCB) .......................... Generates and controls the laser light.

2-2-1
2DF

(2) Switches and sensors

20 21
22

3
2

34 25
24

32

27 31
28
14
4
30 26
1
23
33

;
29 13
15
16 19

7
5

9
17 11
8
6 Machine front
35
10 Machine inside
12
18 Machine rear

Figure 2-2-2 Switches and sensors

1. Main switch (MSW) ...................................... Turns the AC power on and off.

2. Interlock switch (ILSW) ................................ Turns the AC power for the fixing heater on and off.
3. Safety switch 1 (SSW1) ............................... Breaks the safety circuit when the front cover is opened.
4. Safety switch 2 (SSW2) ............................... Breaks the safety circuit when the conveying unit is opened.
5. Upper paper switch (PSW-U) ....................... Detects the presence of paper in the upper drawer.
6. Lower paper switch (PSW-L) ....................... Detects the presence of paper in the lower drawer.
7. Upper lift limit switch (LICSW-U) .................. Detects the upper drawer lift reaching the upper limit.
8. Lower lift limit switch (LICSW-L) .................. Detects the lower drawer lift reaching the upper limit.
9. Upper paper size length switch
(PLSW-U) ..................................................... Detects the length of paper in the upper drawer.
10. Lower paper size length switch
(PLSW-L) ..................................................... Detects the length of paper in the lower drawer.
11. Upper paper size width switch
(PWSW-U) ................................................... Detects the width of paper in the upper drawer.
12. Lower paper size width switch
(PWSW-L) .................................................... Detects the width of paper in the lower drawer.
13. Bypass paper switch (BYPPSW) ................. Detects the presence of paper on the bypass tray.
14. Bypass paper size length switch
(BYPPLSW) ................................................. Detects the length of paper on the bypass tray.

2-2-2
 2DF

15. Bypass paper size width switch

(BYPPWSW) ................................................ Detects the width of paper on the bypass tray.
16. Feed switch 1 (FSW1) ................................. Controls feed clutch 1 drive timing.
17. Feed switch 2 (FSW2) ................................. Controls feed clutch 2 drive timing
18. Feed switch 3 (FSW3) ................................. Controls feed clutch 3 drive timing
19. Bypass feed switch (BYPFSW) ................... Controls bypass feed clutch drive timing
20. Scanner home position switch (SHPSW) .... Detects the optical system in the home position.
21. Original detection switch (ODSW) ............... Operates the original size detection sensor.
22. Original size detection sensor (OSDS) ........ Detects the size of the original.
23. Registration switch (RSW) ........................... Controls the secondary paper feed start timing.
24. Eject switch (ESW) ...................................... Detects a paper misfeed in the fixing section.
25. Feedshift switch (FSSW) ............................. Detects a paper misfeed in the switchback section in a duplex copy.
26. Toner sensor (TNS) ..................................... Detects the toner density in the developing unit.
27. Toner container detection switch
(TCDSW) ..................................................... Detects the presence of the toner container.
28. Toner container sensor (TCS) ...................... Detects the quantity of toner in a toner container.
29. Toner disposal tank detection switch
(TDDSW) ..................................................... Detects the presence of the toner disposal tank.
30. Overflow sensor (OFS) ................................ Detects when the toner disposal tank is full.
31. Humidity sensor (HUMSENS) ...................... Detects absolute humidity.
32. Fixing unit thermistor (FTH) ......................... Detects the heat roller temperature.
33. Front cover switch (FRCSW) ....................... Detects the opening and closing of the front cover.
34. Conveying cover switch (CCSW) ................. Detects the opening and closing of the conveying cover.
35. Side cover switch (SCSW) ........................... Detects the opening and closing of the side cover.

2-2-3
2DF

(3) Motors

12,13,14 9

1
8

15
10
16

;
2
3
11

Machine front

4 Machine inside

Machine rear

Figure 2-2-3 Motors

1. Drive motor (DM) ......................................... Drives the machine.

2. Paper feed motor (PFM) .............................. Drives paper feed section.
3. Upper lift motor (LM-U) ................................ Drives upper drawer lift.
4. Lower lift motor (LM-L) ................................. Drives lower drawer lift.
5. Scanner motor (SM) .................................... Drives the optical system.
6. Eject motor (EM) .......................................... Drives the eject section.
7. Cooling fan motor 1 (CFM1) ........................ Cools the machine interior.
8. Cooling fan motor 2 (CFM2) ........................ Cools the machine interior.
9. Cooling fan motor 3 (CFM3) ........................ Cools the machine interior.
10. Cooling fan motor 4 (CFM4) ........................ Cools the machine interior (LSU).
11. Cooling fan motor 5 (CFM5) ........................ Cools the machine interior (around the power supply unit).
12. Cooling fan motor 6 (CFM6) ........................ Cools the machine interior and supports paper transfer for duplex
copying.
13. Cooling fan motor 7 (CFM7) ........................ Cools the machine interior and supports paper transfer for duplex
copying.
14. Cooling fan motor 8 (CFM8) ........................ Cools the machine interior and supports paper transfer for duplex
copying.
15. Cooling fan motor 9 (CFM9) ........................ Cools the machine interior.
16. Polygon motor (PM) ..................................... Drives the polygon mirror.

2-2-4
 2DF

(4) Other electrical components

11

16

15

13 14
10
12

8
7 6

;
3

2 Machine front

Machine inside
5 17
Machine rear

Figure 2-2-4 Other electrical components

1. Upper paper feed clutch (PFCL-U) .............. Primary paper feed from the upper drawer.
2. Lower paper feed clutch (PFCL-L) ............... Primary paper feed from the lower drawer.
3. Feed clutch 1 (FCL1) ................................... Controls the drive of feed roller.
4. Feed clutch 2 (FCL2) ................................... Controls the drive of feed roller.
5. Feed clutch 3 (FCL3) ................................... Controls the drive of feed roller.
6. Bypass paper feed clutch (BYPPFCL) ......... Primary paper feed from the bypass tray.
7. Bypass feed clutch (BYPFCL) ..................... Controls the drive of bypass feed roller.
8. Registration clutch (RCL) ............................. Secondary paper feed.
9. Feedshift solenoid (FSSOL) ........................ Operates the feedshift guide.
10. Toner feed solenoid (TNFSOL) .................... Replenishes toner.
11. Exposure lamp (EL) ..................................... Exposes originals.
12. Cleaning lamp (CL) ...................................... Removes residual charge from the drum surface.
13. Fixing heater M (FH-M) ................................ Heats the heat roller.
14. Fixing heater S (FH-S) ................................. Heats the heat roller.
15. Fixing unit thermostat (FTS) ........................ Prevents overheating in the fixing section.
16. Total counter (TC) ........................................ Displays the total number of copies produced.
17. Drawer heater (DH) ..................................... Dehumidifies the drawer section.

2-2-5
 2DF

2-3-1 Power source PCB

Power source PCB

F1 Rectifier circuit
D3 T1
D101
AC input 24 V DC
F2 D102
+ + C101 24 V DC
+ C102
output
C5 Q1 circuit
GND

Zero-cross 5 V DC
circuit
PC3 + 5 V DC
output
C201 circuit
Switching GND
control circuit
IC1

PC4
Fixing heater Overvoltage
control circuit detection circuit
PC5
IC201
HEATER TRA1 PC1
MAIN ON ZERO CROSS
OUT
HEATER
REM1
HEATER
TRA2 PC2 HEATER
SUB ON
REM2

Figure 2-3-1 Power source PCB block diagram

The power source PCB (PSPCB) is a switching regulator that converts an AC input to generate 24 V DC and 5 V DC. It
includes a rectifier circuit, a switching regulator circuit, a 24 V DC output circuit, a 5 V DC output circuit and a fixing heater
control circuit.
The rectifier circuit full-wave rectifies the AC input using the diode bridge D3. The smoothing capacitor C5 smoothes out the
pulsed current from the diode bridge.
In the switching control circuit, PWM controller IC1 turns the power MOSFET Q1 on and off to switch the current induced in
the primary coil of the transformer T1.
The 24 V DC output circuit smoothes the current induced in the secondary coil of the transformer T1 via diodes D101 and
D102 and smoothing capacitors C101 and C102, and the output is controlled by the overvoltage detection circuit IC201 and
the power MOSFET Q201. For 24 V DC output, the PWM controller IC (IC1) of the switching control circuit changes the duty
of the switching pulse width of the power MOSFET Q1 via a photo coupler PC4 based on the output voltage status to adjust
the 24 V DC output.
The 5 V DC output circuit smoothes the current induced in the secondary coil of the transformer T1 via diodes D101 and
D102 and smoothing capacitors C101 and C102, and the output is controlled by the overvoltage detection circuit IC201 and
the power MOSFET Q201. For 5 V DC output, the PWM controller IC (IC1) of the switching control circuit changes the duty
of the switching pulse width of the power MOSFET Q1 via a photo coupler PC5 based on the output voltage status to adjust
the 5 V DC output.
The overvoltage detection circuit IC201 monitors the overvoltage status of 24 V DC and 5 V DC, and when it detects an
abnormal status, it gives immediately feedback to the PWM controller IC (IC1) via a photocoupler PC5 to stop control
operation and moves the power source to a standby condition.
The fixing heater control circuit sends a waveform of which zero-cross is detected to the main PCB (MPCB), which controls
the timing of HEATER REM 1 and 2 based on it to turn on the phototriacs PC1 and PC2. When the phototriacs PC1 and PC2
turn on, AC current flows through the triacs TRA1 and TRA2 to turn the fixing heaters M and S on.

2-3-1
2DF

100V
C212 L202 T5A 250V FG2
Q120

J2E
F203 CN4
CT101

CN2
1 1
J23

PC1

PC2
D301
C301

C213

J26
C214

19

20
J22

PC3

J24 J27
J14
L201
L4 +5VADJ

Z3
L203 CN1

J19
VF201
J5 1

C21

C203

J20
J2

TRA2
J21

J7
BEA1
PC5
L3 R54
R53 Z2 Q3

CN3

J18
CN6 1 J17
J13
C20 IC201
J3

CN5 1 PC4

+24VADJ J34
J4 D201
TRA1

J25
C207
J11 J12

2
Q4
R204

1C1
IC101 J16

Q201
H15A 250V BEA4 Q1

R201
J6 C11 J15

R202
F3

R203

C205
R26

R30
F2 T10A 125V VR101
J1 F4 C15 C130
T10A
D2 J8
J36 125V C302

C12 R38
CI L2 D1 J10 C201
C2 C131
Z1

BEA101

F201 T10A 125V

F202 T10A 125V

T1 J9 C107

D101
L103

Q101
D6
C5

BEA102
1
CN9 RI J31

C104
BEA104
TB1 F1 T2.5A 125V C102 C106
L1 D3 J30

Q102
CN7 TB3

D102
NTC2
R39

TB2

J29
FG1 BEA103
C6

C3

C4

L102
C7

D7
1
NTC1 C17
C101
C16

L101

200V
C212 L202 T5A 250V FG2
Q120

J28
F203 CN4
CT101

CN2
1 1
J23
PC1

PC2
D301
C301

C213

J26
C214

19

20
J22
PC3

J24 J27
J14
L201

L4 +5VADJ
Z3

L203 CN1

J19
VF201
J5 1
C21

C203

J20
J2

TRA2
J21
J7

BEA1
PC5
L3
R54

R53 Z2 Q3

CN3

J18
CN6 1 J17
J13
C20 IC201
J3

CN5 1 PC4
+24VADJ J34

J4 D201
TRA1

J25
C207
J11 J12

2
Q4
R204
1C1

IC101 J16
Q201

T8AH 250V BEA4 Q1

R201

J6 C11 J15
R202

F3
R203

C205
R26

R30

F2 T6.3AH 250V VR101

J1 F4 C15 C130
T6.3AH
D2 J8
J36 250V C302
C12 R38

CI L2 D1 J10 C201
C2 C131
Z1

BEA101

F201 T10A 125V

F202 T10A 125V

T1 J9 C107
D101

L103
Q101
D6

C5
BEA102

1
CN9 RI J31

C104
1 BEA104
TB1 F1 T2.5AH 250V C102 C106
L1 CN9 D3 J30
Q102

CN7 TB3
D102

NTC2
R39

TB2
J29

FG1 BEA103
C6

C3

C4

L102
C7

D7

1
NTC1
C101
C17
C16

L101

Figure 2-3-2 Power source PCB silk-screen diagram

2-3-2
 2DF

Terminals (CN) Voltage Remarks

TB-1 TB-2 120V AC 120 V AC supply, input
TB-1 TB-2 220-240 V AC 220-240 V AC supply, input
1-1 1-2 24 V DC 24 V DC supply for SSW1, output
1-5 1-2 5 V DC 5 V DC supply for MPCB, output
1-6 1-2 24 V DC 24 V DC supply for MPCB, output
2-1 2-2 0 - 5 V DC Heater current monitor signal, output
2-3 2-2 0/5 V DC FH-S on/off, input
2-4 2-2 0/5 V DC FH-M on/off, input
2-5 2-2 5 V DC 5 V DC supply from MPCB, input
2-6 2-2 0/5 V DC (pulse) Zero-cross signal, input
2-7 2-2 0/5 V DC CFM5 remote signal, input
2-8 2-2 0/5 V DC SLEEP singal, input
3-1 3-5 24 V DC 24 V DC supply for finisher*, output
3-2 3-6 24 V DC 24 V DC supply for finisher*, output
3-3 3-7 24 V DC 24 V DC supply for finisher*, output
3-4 3-8 24 V DC 24 V DC supply for finisher*, output
3-9 3-10 5 V DC 5 V DC supply for finisher*, output
3-11 3-12 5 V DC 5 V DC supply for large paper deck*/paper feed desk*, output
3-14 3-13 24 V DC 24 V DC supply for large paper deck*/paper feed desk*, output
3-15 3-18 24 V DC 24 V DC supply for mailbox*, output
3-16 3-19 24 V DC 24 V DC supply for mailbox*, output
3-17 3-20 5 V DC 5 V DC supply for mailbox*, output
4-1 6-1 0/24 V DC CFM5 on/off, output
4-2 6-1 24 V DC 24 V DC supply for CFM5, output
5-1 5-3 120/0 V AC FH-M on/off, output
5-1 5-3 220-240/0 V AC FH-M on/off, output
5-2 5-3 120/0 V AC FH-S on/off, output
5-2 5-3 220-240/0 V AC FH-S on/off, output
6-2 6-1 24 V DC 24 V DC supply for SDPCB, output
6-4 6-3 5 V DC 5 V DC supply for SDPCB, output
6-5 6-7 24 V DC 24 V DC supply for STDF*/SRDF*, output
6-6 6-8 24 V DC 24 V DC supply for STDF*/SRDF*, output
6-9 6-11 5 V DC 5 V DC supply for STDF*/SRDF*, output
6-10 6-12 5 V DC 5 V DC supply for STDF*/SRDF*, output
9-1 TB-2 120 V AC 120 V AC supply for MSW, output
9-1 TB-2 220-240 V AC 220-240 V AC supply for MSW, output
*Optional.

2-3-3
2DF

2-3-2 Main PCB

Main PCB

Operation unit Scan signal

Operation
XIO Detection signal input unit PCB
U42
Operation
CPU LCD LCD display data
FLASH controller BUF LCD
U29, 34 U24

Address bus
Compact
Operation unit Flash
Data bus
CPU
U26 Fax transmission/
reception data
A/D BUF Fax board*
converter
U17,18 Analog image data
SDRAM Odd
U25 S/H IC CCD PCB
U16 Even

MIP
U21
Printer data Printer
board*
Address bus

Data bus

Scanner
drive PCB

Printing data
Main CPU Backup VTC
FLASH FLASH U22 BUF LSU
U7 U9

High-voltage
transformer PCB
Main CPU XIO
U8 U14,15

Paper feed unit

Drum unit
Main CPU Detection signal input Developing unit
SRAM Fixing unit
U11, 56 Control signal output
Driver Duplex unit*
STDF*
SRDF*
Detaction signal input
Job separator*
Control signal output Saddle finisher*
Driver
Built-in finisher*
Booklet stitcher*

*Optional.

Figure 2-3-3 Main PCB block diagram

2-3-4
 2DF

The main PCB (MPCB) consists of the main CPU and operation unit CPU. The main CPU U8 communicates with other
PCBs, the image processing system and the engine drive system. The operation unit CPU U26 controls the LCD display
and the entire operation section.
The main CPU U8 operates on an 8-bit bus. It uses the SRAM U11 and U56 for work memory and FLASH U9 for backup
memory. In accordance with the control program in the main CPU FLASH U7, the main CPU U8 communicates with the
operation unit CPU and optional devices via the serial communication function in the CPU and XIO U14 and U15. The main
CPU U8 controls the CCD PCB (CCDPCB), which is for image input control, and the LSU, which is for image output control
via the image processing ASIC MIP U21, and drives the machine, conveys paper and detects abnormalities via XIO U14,
U15 and U22.
The operation unit CPU U26 operates on an 32-bit bus. It uses the SRAM U25 for work memory. In accordance with the
control program in the main CPU FLASH U29, which also contains LCD display fonts, the operation unit CPU U26 controls
key switches and LEDs on the operation unit PCB (OPCB) and controls the LCD display via the LCD controller U24.

2-3-5
2DF

CN34 CN37 CN32 CN33 CN41 CN42 CN38

CN46
U40
CN47

U26 U58
U16

U38

CN49

CN48
U42

U29
CN31
U14

CN50
U21 U37
U25

U47

CN44

CN40
U56 CN43
U24

CN39
U45
U15

CN36
U49

CN7
U11
U9 U7
U22
U52
CN14

CN6
CN1
CN15
U8

CN51
CN45

CN9
CN4 CN8

CN3 CN13 CN12 CN5 CN35 CN2 CN16 CN10 CN11

Figure 2-3-4 Main PCB silk-screen diagram

2-3-6
 2DF

Terminals (CN) Voltage Remarks

1-1 1-7 0/5 V DC SLEEP signal, output
1-2 1-7 0/5 V DC CFM5 remote signal, output
1-3 1-7 0/5 V DC (pulse) Zero-cross signal, input
1-4 1-7 5 V DC 5V DC supply for PSPCB, output
1-5 1-7 0/5 V DC FH-M on/off, output
1-6 1-7 0/5 V DC FH-S on/off, output
1-8 1-7 0 - 5 V DC Heater current monitor signal, input
2-1 2-2 24 V DC 24 V DC supply from SSW2, input
2-5 2-2 5 V DC 5 V DC supply from PSPCB, input
2-6 2-2 24 V DC 24 V DC supply from PSPCB, input
3-A1 3-A2 0/5 V DC (pulse) Serial signal for mailbox*, input
3-A3 3-A4 0/5 V DC (pulse) Serial signal from mailbox*, output
3-A5 3-A4 0/5 V DC Mailbox* connection signal, input
3-A6 3-A4 0/5 V DC RESET signal for mailbox*, output
3-B1 3-B2 0/5 V DC (pulse) Serial signal for large paper deck*/paper feed desk*, output
3-B3 3-B4 0/5 V DC (pulse) Serial signal from large paper deck*/paper feed desk*, input
3-B5 3-B4 0/5 V DC FSW on/off signal from large paper deck*/paper feed desk*, input
3-B6 3-B4 0/5 V DC RESET signal for large paper deck*/paper feed desk*, output
4-1 4-2 0/5 V DC (pulse) Serial signal from finisher*, input
4-3 4-4 0/5 V DC (pulse) Serial signal for finisher*, output
5-1 4-4 0/5 V DC RESET signal for finisher*, output
5-2 4-4 0/5 V DC Finisher* connection signal, input
6-A1 6-A4 0/5 V DC BYPPWSW paper width detection signal, input
6-A2 6-A4 0/5 V DC BYPPWSW paper width detection signal, input
6-A3 6-A4 0/5 V DC BYPPWSW paper width detection signal, input
6-A5 6-A4 5 V DC 5 V DC supply for BYPPSW, output
6-A6 6-A4 0/5 V DC BYPPSW on/off, input
6-A8 6-A7 24 V DC 24 V DC supply for BYPPFCL, output
6-A9 6-A7 0/24 V DC BYPPFCL on/off, output
6-A10 6-A7 24 V DC 24 V DC supply for BYPFCL, output
6-A11 6-A7 0/24 V DC BYPFCL on/off, output
6-B1 6-B3 5 V DC 5 V DC supply for OFS, output
6-B2 6-B3 0/5 V DC OFS on/off, input
6-B4 6-B5 0/5 V DC TDDSW on/off, input
6-B6 6-B7 0/5 V DC FRCSW on/off, input
6-B8 6-B9 0/24V DC CFM3 on/off, output
6-B10 6-B12 5 V DC 5 V DC supply for BYPPLSW, output
6-B11 6-B12 0/5 V DC BYPPLSW on/off, input
7-1 7-3 0 - 5 V DC Developing bias control voltage, output
7-2 7-3 24 V DC 24 V DC supply for HVTPCB, output
7-4 7-3 0/5 V DC Main charging on/off, output
7-5 7-3 0/5 V DC (pulse) Developing bias CLOCK signal, output
7-6 7-3 0/5 V DC Separation charging on/off, output
7-7 7-3 0 - 5 V DC Separation charging control voltage, output
7-8 7-3 0 - 5 V DC Transfer charging control voltage, output
7-9 7-3 0 - 5 V DC Transfer limit voltage, output
7-10 7-3 0/5 V DC Transfer charging on/off, output
7-11 7-3 0/5 V DC Transfer reverse bias remote signal, output
7-12 7-3 0/5 V DC Transfer forward bias remote signal, output
7-13 7-3 0/5 V DC Transfer current detection signal, input
7-14 7-3 0/5 V DC Transfer current detection signal, input
8-1 8-7 5 V DC 5 V DC supply for LSU, output
8-2 8-7 0/5 V DC LSU SAMPLE signal, output
8-3 8-7 0/5 V DC LSU POWCONT signal, output
8-4 8-7 0/5 V DC LSU LASER signal, output
8-5 8-7 0/5 V DC LSU VIDEO + signal, output
*Optional.

2-3-7
2DF

Terminals (CN) Voltage Remarks

8-6 8-7 0/5 V DC LSU VIDEO - signal, output
8-8 8-9 0/5 V DC LSU PD signal, input
8-10 8-11 24 V DC 24 V DC supply for PM, output
8-12 8-11 0/24 V DC PM SCAN signal, output
8-13 8-9 0/5 V DC PM READY signal, input
8-14 8-11 0/5 V DC (pulse) PM CLOCK signal, output
9-A2 9-A1 0/5 V DC BYPFSW on/off, input
9-A3 9-A1 5 V DC 5 V DC supply for BYPFSW, output
9-A4 9-A6 5 V DC 5 V DC supply for TCS, output
9-A5 9-A6 0/5 V DC TCS on/off, input
9-A8 9-A10 5 V DC 5 V DC supply for TNS, output
9-A9 9-A10 0/5 V DC TNS on/off, input
9-A11 9-A10 0/5 V DC Developing unit detection signal, input
9-A12 9-A10 0/5 V DC Developing unit FUSE CUT signal, output
9-B2 9-B1 0/24 V DC TNFSOL on/off, output
9-B3 9-B4 0/5 V DC TCDSW on/off, input
9-B7 9-B6 0/5 V DC CL on/off, output
9-B8 9-B6 0/5 V DC Drum unit DATA signal, output
9-B9 9-B6 0/5 V DC Drum unit CLOCK signal, output
9-B11 9-B10 0/5 V DC Drum unit detection signal, input
9-B12 9-10 5 V DC 5 V DC supply for drum unit, output
10-A2 10-A1 0/5 V DC RSW on/off, input
10-A3 10-A1 5 V DC 5 V DC supply for RSW, output
10-A5 10-A8 5 V DC 5 V DC supply for FTH, output
10-A6 10-A8 0 - 5 V DC FTH detection voltage, input
10-A7 10-A8 0/5 V DC FTH FUSE CUT signal, input
10-B1 10-B3 24 V DC 24 V DC supply for DUPFCL*, output
10-B2 10-B3 0/24 V DC DUPFCL* on/off, output
10-B4 10-B3 0/5 V DC DUPPCSW* on/off, input
10-B5 10-B3 5 V DC 5 V DC supply for DUPPCSW*, output
10-B7 10-B6 0/5 V DC Duplex unit* connection signal, input
11-1 11-3 24 V DC 24 V DC supply for DM, output
11-2 11-4 24 V DC 24 V DC supply for PFM, output
11-5 11-7 5 V DC 24 V DC supply for DM, input
11-9 11-3 0/24 V DC DM S/S signal, output
11-10 11-4 0/24 V DC PFM S/S signal, output
11-11 11-3 0/24 V DC DM L/D signal, input
11-12 11-4 0/24 V DC PFM L/D signal, input
11-13 11-7 0/5 V DC (pulse) DM CLOCK signal, output
11-14 11-4 0/24 V DC FCL1 on/off, output
11-15 11-4 24 V DC 24 V DC supply for FCL1, output
11-17 11-16 0/5 V DC FSW1 on/off, input
11-18 11-16 5 V DC 5 V DC supply for FSW, output
12-1 12-6 24 V DC 24 V DC supply for PWSW-U, output
12-2 12-6 24 V DC 24 V DC supply from PWSW-U, input
12-3 12-6 0/24 V DC PWSW-U paper width detection signal, input
12-4 12-6 0/24 V DC PWSW-U paper width detection signal, input
12-5 12-6 0/24 V DC PWSW-U paper width detection signal, input
12-7 12-12 24 V DC 24 V DC supply for PWSW-L, output
12-8 12-12 24 V DC 24 V DC supply from PWSW-L, input
12-9 12-12 0/24 V DC PWSW-L paper width detection signal, input
12-10 12-12 0/24 V DC PWSW-L paper width detection signal, input
12-11 12-12 0/24 V DC PWSW-L paper width detection signal, input
13-A2 13-A1 0/5 V DC FSW3 on/off, input
13-A3 13-A1 5 V DC 5 V DC supply for FSW3, output
13-A4 13-A16 24 V DC 24 V DC supply for FCL3, output
*Optional.

2-3-8
 2DF

Terminals (CN) Voltage Remarks

13-A5 13-A16 0/24 V DC FCL3 on/off, output
13-A7 13-A6 0/5 V DC FSW2 on/off, input
13-A8 13-A6 5 V DC 5 V DC supply for FSW2, output
13-A10 13-A9 0/5 V DC SCSW on/off, input
13-A11 13-A16 24 V DC 24 V DC supply for FCL2, output
13-A12 13-A16 0/24 V DC FCL2 on/off, output
13-A13 13-A14 0/5 V DC LM-U paper level detection switch on/off, input
13-A15 13-A14 0/5 V DC LM-U paper level detection switch on/off, input
13-A17 13-A16 0/24 V DC LM-U on/off, output
13-A19 13-A18 0/5 V DC PLSW-L on/off, inout
13-B2 13-B1 0/5 V DC PLSW-U on/off, inout
13-B3 13-B4 0/5 V DC LM-L paper level detection switch on/off, input
13-B5 13-B4 0/5 V DC LM-L paper level detection switch on/off, input
13-B7 13-B6 0/24 V DC LM-L on/off, output
13-B9 13-B8 0/5 V DC LICSW-U on/off, input
13-B10 13-B8 5 V DC 5 V DC supply for LICSW-U, output
13-B12 13-B11 0/5 V DC PSW-U on/off, input
13-B13 13-B11 5 V DC 5 V DC supply for PSW-U, output
13-B15 13-B14 0/5 V DC LICSW-L on/off, input
13-B16 13-B14 5 V DC 5 V DC supply for LICSW-L, output
13-B18 13-B17 0/5 V DC PSW-L on/off, input
13-B19 13-B17 5 V DC 5 V DC supply for PSW-L, output
16-A1 16-A14 0/24 V DC FSSOL release signal, output
16-A2 16-A14 0/24 V DC FSSOL acutuate signal, output
16-A3 16-A14 24 V DC 24 V DC supply for FSSOL, output
16-A5 16-A4 0/5 V DC FSSW on/off, input
16-A6 16-A4 5 V DC 5 V DC supply for FSSW, input
16-A11 16-A10 0/5 V DC ESW on/off, input
16-A12 16-A10 5 V DC 5 V DC supply for ESW, output
16-A13 16-A14 0/24 V DC CFM1 on/off, output
16-A16 16-A15 0/5 V DC CCSW on/off, input
16-B1 16-A14 0/24 V DC PFCL-U on/off, output
16-B2 16-A14 24 V DC 24 V DC supply for PFCL-U, output
16-B3 16-A14 24 V DC 24 V DC supply for PFCL-L, output
16-B4 16-A14 0/24 V DC PFCL-L on/off, output
16-B5 16-A14 24 V DC 24 V DC supply for RCL, output
16-B6 16-A14 0/24 V DC RCL on/off, output
16-B7 16-B9 5 V DC 5 V DC supply for HUMSENS, output
16-B8 16-B9 0 - 5 V DC HUMSENS detection voltage, input
16-B10 16-B9 0 - 5 V DC ETTH detection voltage, input
16-B11 16-A14 0/24 V DC (pulse) EM coil energization pulse, output (B)
16-B12 16-A14 0/24 V DC (pulse) EM coil energization pulse, output (B)
16-B13 16-A14 0/24 V DC (pulse) EM coil energization pulse, output (A)
16-B14 16-A14 0/24 V DC (pulse) EM coil energization pulse, output (A)
16-B15 16-A14 24 V DC 24 V DC supply for CFM4, output
16-B16 16-A14 0/24 V DC CFM4 on/off, output
31-1 2-2 24 V DC 24 V DC supply from MSW, input
31-2 2-2 0/5 V DC MSW on/off, output
31-3 2-2 24 V DC 24 V DC supply for TC, output
31-4 2-2 0/5 V DC TC count signal, output
31-8 31-7 0/5 V DC Key counter* connection signal, input
31-9 2-2 24 V DC 24V DC supply for key counter*, output
31-10 2-2 0/5 V DC Key counter* count signal, output
32-1 2-2 0/5 V DC OFM* RET signal, output
32-2 2-2 0/5 V DC (pulse) OFM* CLOCK signal, output
32-3 2-2 0/5 V DC OFM* CWB signal, output
*Optional.

2-3-9
2DF

Terminals (CN) Voltage Remarks

32-4 2-2 0/5 V DC OCM* ENABLE signal, output
32-5 2-2 0/5 V DC OCM* RET signal, output
32-6 2-2 0/5 V DC (pulse) OCM* CLOCK signal, output
32-7 2-2 0/5 V DC OCM* CWB signal, output
32-8 2-2 OCM* current control voltage Vref, output
32-9 2-2 0/5 V DC OCM* drive control signal M3, output
32-10 2-2 0/5 V DC OCM* drive control signal M2, output
32-11 2-2 0/5 V DC OCM* drive control signal M1, output
33-A2 2-2 0/5 V DC OSBSW* on/off, input
33-A3 2-2 0/5 V DC OFSW* on/off, input
33-A4 2-2 0/5 V DC OSSW* on/off, input
33-A7 2-2 0/5 V DC SRDF* connection signal, input
33-A8 2-2 0/5 V DC OSWSW* on/off, input
33-A9 2-2 0/5 V DC DFSSW2* on/off, input
33-A10 2-2 0/5 V DC DFSSW1* on/off, input
33-A11 2-2 0/5 V DC OSLSW* on/off, input
33-A12 2-2 0/5 V DC DFTSW* on/off, input
33-B1 2-2 0/5 V DC OSLED* (red) on/off, output
33-B2 2-2 0/5 V DC OSLED* (green) on/off, output
33-B3 2-2 0/24 V DC SBPSOL* release signal, output
33-B4 2-2 0/24 V DC SBPSOL* actuate signal, output
33-B5 2-2 0/24 V DC OFCL* on/off, output
33-B6 2-2 0/24 V DC EFSSOL* on/off, output
33-B8 2-2 0/24 V DC SBFSSOL* on/off, output
33-B9 2-2 0/24 V DC OFSOL* release signal, output
33-B10 2-2 0/24 V DC OFSOL* actuate signal, output
33-B11 2-2 0/5 V DC OFM* ENABLE signal, input
33-B12 2-2 0/5 V DC OFM* ENABLE signal, input
34-2 34-1 4.5 V DC (pulse) CCDPCB ODD signal, input (analog)
34-4 34-3 4.5 V DC (pulse) CCDPCB EVEN signal, input (analog)
34-5 34-7 12 V DC 12 V DC supply for CCDPCB, output
34-6 34-7 5 V DC 5 V DC supply for CCDPCB, output
34-8 34-9 0/5 V DC (pulse) CCDPCB CLP signal, output
34-10 34-11 0/5 V DC (pulse) CCDPCB SHIFT signal, output
34-12 34-11 0/5 V DC (pulse) CCDPCB CLOCK + signal, output
34-13 34-11 0/5 V DC (pulse) CCDPCB CLOCK - signal, output
34-14 34-11 0/5 V DC (pulse) CCDPCB RS + signal, output
34-15 34-11 0/5 V DC (pulse) CCDPCB RS - signal, output
35-1 35-3 0/5 V DC JBESW* on/off, input
35-2 35-3 5 V DC 5 V DC supply for JBESW*, output
35-5 35-4 0/5 V DC Job separator* connection signal, input
35-7 35-6 0/5 V DC EPDSW* on/off, input
35-8 35-6 5 V DC 5 V DC supply for EPDSW*, output
35-9 35-4 0/5 V DC LED (JOB)* on/off, output
35-10 35-4 5 V DC 5 V DC supply for LED (JOB)*, output
35-11 35-4 0/24 V DC FSSOL (JOB)* release signal, output
35-12 35-4 0/24 V DC FSSOL (JOB)* actuate signal, output
35-13 35-4 24 V DC 24 V DC supply for FSSOL (JOB)*, output
36-1 42-B4 0/5 V DC (pulse) OPCB-L DIGLED6 signal, output
36-2 42-B4 0/5 V DC (pulse) OPCB-L DIGLED5 signal, output
36-3 42-B4 0/5 V DC (pulse) OPCB-L DIGLED4 signal, output
36-4 42-B4 0/5 V DC (pulse) OPCB-L DIGLED3 signal, output
36-5 42-B4 0/5 V DC (pulse) OPCB-L DIGLED2 signal, output
36-6 42-B4 0/5 V DC (pulse) OPCB-L DIGLED1 signal, output
36-7 42-B4 0/5 V DC (pulse) OPCB-L SCAN4 signal, output
36-8 42-B4 0/5 V DC (pulse) OPCB-L SCAN3 signal, output
*Optional.

2-3-10
 2DF

Terminals (CN) Voltage Remarks

36-9 42-B4 0/5 V DC (pulse) OPCB-L SCAN2 signal, output
36-10 42-B4 0/5 V DC (pulse) OPCB-L SCAN1 signal, output
36-11 42-B4 0/5 V DC OPCB-L DIGKEY3 signal, input
36-12 42-B4 0/5 V DC OPCB-L DIGKEY2 signal, input
36-13 42-B4 0/5 V DC OPCB-L DIGKEY1 signal, input
37-2 37-1 0/5 V DC SHPSW on/off, input
37-3 37-1 0/5 V DC EL on/off, output
37-4 37-1 0/5 V DC SM ENABLE signal, output
37-5 37-1 0/5 V DC SM RET signal, output
37-6 37-1 0/5 V DC SM CWB signal, output
37-7 37-1 0/5 V DC (pulse) SM CLOCK signal, output
37-8 37-1 0/5 V DC SM drive control signal M5, output
37-9 37-1 0/5 V DC SM drive control signal M4, output
37-10 37-1 0/5 V DC SM drive control signal M3, output
37-11 37-1 0/5 V DC SM drive control signal M2, output
37-12 37-1 0/5 V DC SM drive control signal M1, output
37-13 37-1 SM current control voltage Vref, output
37-14 37-1 0/5 V DC ODSW on/off, input
37-16 37-15 0/5 V DC OSDS on/off, input
37-17 37-15 5 V DC 5 V DC supply for OSDS, output
42-A1 42-B4 0/5 V DC OPCB-L BUZZER signal, output
42-A2 42-B4 0/5 V DC (pulse) Touch panel detection voltage X1, input
42-A3 42-B4 0/5 V DC (pulse) Touch panel detection voltage Y1, input
42-A4 42-B4 0/5 V DC (pulse) Touch panel detection voltage X2, output
42-A5 42-B4 0/5 V DC (pulse) Touch panel detection voltage Y2, output
42-A6 42-B4 0/5 V DC (pulse) LCD FRAME signal, output
42-A7 42-B4 0/5 V DC (pulse) LCD LOAD signal, output
42-A8 42-B4 0/5 V DC (pulse) LCD CP signal, output
42-A9 42-B4 GND LCD VSS signal, output
42-A10 42-B4 5 V DC LCD VDD signal, output
42-A11 42-B4 GND LCD VSS signal, output
42-A12 42-B4 0/5 V DC LCD DISPLAY signal, output
42-A13 42-B4 0/5 V DC (pulse) LCD D0 data, output
42-A14 42-B4 0/5 V DC (pulse) LCD D1 data, output
42-A15 42-B4 0/5 V DC (pulse) LCD D2 data, output
42-A16 42-B4 0/5 V DC (pulse) LCD D3 data, output
42-A17 42-B4 0/5 V DC (pulse) LCD VEE signal, output
42-B2 42-B1 24 V DC 24 V DC supply for OPCB-R, output
42-B3 42-B4 0/5 V DC OPCB-R LAMP OFF signal, output
42-B5 42-B4 5 V DC 5 V DC supply for OPCB-R, output
42-B6 42-B4 0/5 V DC (pulse) OPCB-R DIGLED8 signal, output
42-B7 42-B4 0/5 V DC (pulse) OPCB-R DIGLED7 signal, output
42-B8 42-B4 0/5 V DC (pulse) OPCB-R SCAN8 signal, output
42-B9 42-B4 0/5 V DC (pulse) OPCB-R SCAN7 signal, output
42-B10 42-B4 0/5 V DC (pulse) OPCB-R SCAN6 signal, output
42-B11 42-B4 0/5 V DC (pulse) OPCB-R SCAN5 signal, output
42-B12 42-B4 0/5 V DC OPCB-R DIGKEY9 signal, input
42-B13 42-B4 0/5 V DC OPCB-R DIGKEY8 signal, input
42-B14 42-B4 0/5 V DC OPCB-R DIGKEY7 signal, input
42-B15 42-B4 0/5 V DC OPCB-R DIGKEY6 signal, input
42-B16 42-B4 0/5 V DC OPCB-R DIGKEY5 signal, input
42-B17 42-B4 0/5 V DC OPCB-R DIGKEY4 signal, input
43-A1 43-A2 5/0 V DC (pulse) Printer board* PRINTN signal, output
43-A3 43-A2 5/0 V DC (pulse) Printer board* SI signal, output
43-A4 43-A2 5/0 V DC (pulse) Printer board* SCLK signal, input
43-A5 43-A2 5/0 V DC (pulse) Printer board* SBSY signal, output
*Optional.

2-3-11
2DF

Terminals (CN) Voltage Remarks

43-A6 43-A2 5/0 V DC (pulse) Printer board* SO signal, input
43-A7 43-A2 5/0 V DC (pulse) Printer board* RESET signal, output
43-A8 43-A2 5/0 V DC (pulse) Printer board* PDOUT signal, output
43-A10 43-A2 5/0 V DC (pulse) Printer board* VDATAP signal, input
43-A12 43-A2 5/0 V DC (pulse) Printer board* VDATAN signal, input
43-A14 43-A2 5/0 V DC (pulse) Printer board* FPCLKsignal, output
43-A15 43-A2 5/0 V DC (pulse) Printer board* FPDAT signal, input
43-A17 43-A2 5/0 V DC (pulse) Printer board* VDATA signal, input
43-B1 43-A2 5 V DC Printer board* 5 V DC supply, output
43-B2 43-A2 5 V DC Printer board* 5 V DC supply, output
43-B3 43-A2 5 V DC Printer board* 5 V DC supply, output
43-B4 43-A2 5/0 V DC (pulse) Printer board* SDIR signal, output
43-B5 43-A2 5/0 V DC (pulse) Printer board* ESGIR signal, output
43-B6 43-A2 5/0 V DC (pulse) Printer board* VDFON signal, output
43-B7 43-A2 5/0 V DC (pulse) Printer board* VSREQN signal, output
43-B12 43-A2 5/0 V DC (pulse) Printer board* FPDIR signal, output
43-B13 43-A2 5/0 V DC (pulse) Printer board* FPPOWER signal, output
43-B15 43-A2 5 V DC Printer board* 5 V DC supply, output
43-B16 43-A2 5 V DC Printer board* 5 V DC supply, output
43-B17 43-A2 5 V DC Printer board* 5 V DC supply, output
43-B18 43-A2 5 V DC Printer board* 5 V DC supply, output
43-B19 43-A2 5 V DC Printer board* 5 V DC supply, output
43-B20 43-A2 5 V DC Printer board* 5 V DC supply, output
44-1 44-2 3.3 V DC Fax board* 3.3 V DC supply, output
44-3 44-4 5/0 V DC (pulse) Fax board* FPVCLK signal, output
44-5 44-6 5/0 V DC (pulse) Fax board* FVCLK signal, input
44-7 44-8 5/0 V DC (pulse) Fax board* FMRE signal, input
44-9 44-10 5/0 V DC (pulse) Fax board* /FPVD signal, input
44-11 44-12 5/0 V DC (pulse) Fax board* /FPHSYNC signal, output
44-13 44-14 5/0 V DC (pulse) Fax board* /FPVSYNC signal, output
44-15 44-16 5/0 V DC (pulse) Fax board* /FOVSYNC signal, output
44-17 44-18 5/0 V DC (pulse) Fax board* /FOHSTHIN signal, output
44-19 44-20 5/0 V DC (pulse) Fax board* FMIPOUTO signal, output
44-21 44-22 5/0 V DC (pulse) Fax board* FMREOUT signal, output
44-23 44-24 5/0 V DC (pulse) Fax board* FFOCLK signal, output
44-25 44-26 5/0 V DC (pulse) Fax board* /MMISTS signal, output
44-27 44-28 Analog Fax board* FMMI_TXD2 signal, output
44-29 44-30 Analog Fax board* FMMI_RXD2 signal, input
44-31 44-30 5/0 V DC (pulse) Fax board* /FAXRESET signal, output
44-32 44-30 5/0 V DC (pulse) Fax board* /FAXREADY signal, input
44-33 44-30 5/0 V DC (pulse) Fax board* /PREQ signal, input
44-34 44-30 5/0 V DC (pulse) Fax board* /SREQ signal, input
44-35 44-30 5/0 V DC (pulse) Fax board* /SETFAX signal, input
44-36 44-30 5/0 V DC (pulse) Fax board* /MAINSTS signal, output
44-38 44-37 Analog Fax board* FMAIN_TXD0 signal, output
44-40 44-39 Analog Fax board* FMAIN_RXD0 signal, input

2-3-12
 2DF

2-3-3 Operation unit PCB

Operation unit right PCB

DIGKEY4 KEY1 KEY2 KEY3 KEY4

CN3-1
DIGKEY5 KEY5 KEY6 KEY7 KEY8
CN3-2
DIGKEY6 KEY9 KEY10 KEY11 KEY12
CN3-3
DIGKEY7 KEY13 KEY14 KEY15 KEY16
CN3-4
DIGKEY8 KEY17 KEY18 KEY19 KEY20
CN3-5
DIGKEY9 KEY21 KEY22
CN3-6

D1 D2 D3
SCAN5
CN3-7
SCAN6
CN3-8
SCAN7
CN3-9
SCAN8
CN3-10
L1 L2 L3
DIGLED7 R1
CN3-11

L4 L5 L6
DIGLED8 R2
CN3-12

A B
Main PCB Operation unit left PCB

DIGKEY1 KEY23 A KEY24 A KEY25 A KEY26 A

CN1-1
KEY28 KEY29 KEY30
DIGKEY2 KEY27 A KEY33 B KEY34 B KEY35 B
CN1-2
KEY31 KEY32
DIGKEY3 KEY36 B KEY37 B
CN1-3

D4 D5 D6 D7
SCAN1
CN1-4
SCAN2
CN1-5
SCAN3
CN1-6
SCAN4
CN1-7
L7 L10 L14 L17
L7-1 L10-1
DIGLED1 R100
CN1-8
L15 L19
L7-2 L10-2
DIGLED2 R102
CN1-9
L8 L11 L16 L21
L8-1 L11-1
DIGLED3 R104
CN1-10
L23
L8-2 L11-2
DIGLED4 R106
CN1-11
L9 L25
L9-1
DIGLED5 R108
CN1-12

L9-2
DIGLED6 R110
CN1-13

Figure 2-3-5 Operation unit PCB block diagram

2-3-13
2DF

The operation unit PCB (OPCB) consists of the operation unit left PCB (OPCB-L) and the operation unit right PCB (OPCB-
R).
The operation unit right PCB (OPCB-R) consists of key switches and LEDs. The lighting of LEDs is determined by scan
signals (SCAN5 to SCAN8) and LED lighting selection signals (DIGLED7 to DIGLED8) from the main PCB (MPCB). The
key switches operated are identified by the scan signals (SCAN5 to SCAN8) and the return signals (DIGKEY4 to
DIGKEY9).
As an example, to light LED 1 (L1), the LED lighting selection signal (DIGLED7) should be driven low in synchronization with
a low level on the scan signal (SCAN5). LEDs can be lit dynamically by repeating such operations.
As another example, if KEY 1 is pressed, the corresponding key switch is turned on feeding the low level of the scan signal
(SCAN5) back to the main PCB (MPCB) via the return signal (DIGKEY4). The main PCB (MPCB) locates the position where
the line outputting the scan signal and the line inputting the return signal cross, and thereby determines which key switch
was operated.
The operation unit left PCB (OPCB-L) consists of key switches and LEDs. The lighting of LEDs is determined by scan
signals (SCAN1 to SCAN4) and LED lighting selection signals (DIGLED1 to DIGLED6) from the main PCB (MPCB). The
key switches operated are identified by the scan signals (SCAN1 to SCAN4) and the return signals (DIGKEY1 to
DIGKEY3).
As an example, to light LED 7 (L7), the LED lighting selection signal (DIGLED1) should be driven low in synchronization with
a low level on the scan signal (SCAN1). LEDs can be lit dynamically by repeating such operations.
As another example, if KEY 23 is pressed, the corresponding key switch is turned on feeding the low level of the scan signal
(SCAN1) back to the main PCB (MPCB) via the return signal (DIGKEY1). The main PCB (MPCB) locates the position where
the line outputting the scan signal and the line inputting the return signal cross, and thereby determines which key switch
was operated.

2-3-14
 2DF

CN3 FG FG
1 B1 B3 17 B2
K19 L1 L2

C5
K20
C1 C3 TR2 TR1
LF1
C2 C4 K21 K22
FG
1 5
K13
K1 K5 K9
T1

3
CN6
L4
6 TR4
10 K16

1
K14
K2 K6 K10
TR3
C6
L5

K17
K3 K7 K11
L3
L6

K18
K4 K8 K12 K15

Figure 2-3-6 Operation unit right PCB silk-screen diagram

FG
K28 K33 K29 K34 K30 K35 K31 K36 K32 K37
CN2 L17 L19 L21 L23 L25
CN1
VR1 IC1 1 17 BZ1
1 9 1 13
+
C111 C110
+
L7 K23 L12
FG B100
C100
+
C101
L8 K24 L13

TH1
12

L9 K25 L14
TR5
CN5

FG

L15
L10 K26
1

1 CN4 4

FG

L16
L11 K27

Figure 2-3-7 Operation unit left PCB silk-screen diagram

2-3-15
2DF

Terminals (CN) Voltage Remarks

1-1 3-14 0/5 V DC OPCB-L DIGKEY1 signal, output
1-2 3-14 0/5 V DC OPCB-L DIGKEY2 signal, output
1-3 3-14 0/5 V DC OPCB-L DIGKEY3 signal, output
1-4 3-14 0/5 V DC (pulse) OPCB-L SCAN1 signal, input
1-5 3-14 0/5 V DC (pulse) OPCB-L SCAN2 signal, input
1-6 3-14 0/5 V DC (pulse) OPCB-L SCAN3 signal, input
1-7 3-14 0/5 V DC (pulse) OPCB-L SCAN4 signal, input
1-8 3-14 0/5 V DC (pulse) OPCB-L DIGLED1 signal, input
1-9 3-14 0/5 V DC (pulse) OPCB-L DIGLED2 signal, input
1-10 3-14 0/5 V DC (pulse) OPCB-L DIGLED3 signal, input
1-11 3-14 0/5 V DC (pulse) OPCB-L DIGLED4 signal, input
1-12 3-14 0/5 V DC (pulse) OPCB-L DIGLED5 signal, input
1-13 3-14 0/5 V DC (pulse) OPCB-L DIGLED6 signal, input
2-1 3-14 0/5 V DC LCD VEE signal, input
2-2 3-14 0/5 V DC (pulse) LCD D3 data, input
2-3 3-14 0/5 V DC (pulse) LCD D2 data, input
2-4 3-14 0/5 V DC (pulse) LCD D1 data, input
2-5 3-14 0/5 V DC (pulse) LCD D0 data, input
2-6 3-14 0/5 V DC LCD DISPLAY signal, input
2-7 3-14 GND LCD VSS signal, input
2-8 3-14 5 V DC LCD VDD signal, input
2-9 3-14 GND LCD VSS signal, input
2-10 3-14 0/5 V DC (pulse) LCD CP signal, input
2-11 3-14 0/5 V DC (pulse) LCD LOAD signal, input
2-12 3-14 0/5 V DC (pulse) LCD FRAME signal, input
2-13 3-14 0/5 V DC (pulse) Touch panel detection voltage Y2, input
2-14 3-14 0/5 V DC (pulse) Touch panel detection voltage X2, input
2-15 3-14 0/5 V DC (pulse) Touch panel detection voltage Y1, output
2-16 3-14 0/5 V DC (pulse) Touch panel detection voltage X1, output
2-17 3-14 0/5 V DC (pulse) OPCB-L BUZZER signal, input
3-1 3-14 0/5 V DC OPCB-R DIGKEY4 signal, output
3-2 3-14 0/5 V DC OPCB-R DIGKEY5 signal, output
3-3 3-14 0/5 V DC OPCB-R DIGKEY6 signal, output
3-4 3-14 0/5 V DC OPCB-R DIGKEY7 signal, output
3-5 3-14 0/5 V DC OPCB-R DIGKEY8 signal, output
3-6 3-14 0/5 V DC OPCB-R DIGKEY9 signal, output
3-7 3-14 0/5 V DC (pulse) OPCB-R SCAN5 signal, input
3-8 3-14 0/5 V DC (pulse) OPCB-R SCAN6 signal, input
3-9 3-14 0/5 V DC (pulse) OPCB-R SCAN7 signal, input
3-10 3-14 0/5 V DC (pulse) OPCB-R SCAN8 signal, input
3-11 3-14 0/5 V DC (pulse) OPCB-R DIGLED7 signal, input
3-12 3-14 0/5 V DC (pulse) OPCB-R DIGLED8 signal, input
3-13 3-14 5 V DC 5 V DC supply for OPCB-R, input
3-15 3-14 0/5 V DC OPCB-R LAMP OFF signal, input
3-16 3-17 24 V DC 24 V DC supply for OPCB-R, input
4-1 3-14 0/5 V DC (pulse) Touch panel detection voltage Y2, output
4-2 3-14 0/5 V DC (pulse) Touch panel detection voltage X2, output
4-3 3-14 0/5 V DC (pulse) Touch panel detection voltage Y1, input
4-4 3-14 0/5 V DC (pulse) Touch panel detection voltage X1, input
5-1 3-14 0/5 V DC (pulse) LCD FRAME signal, output
5-2 3-14 0/5 V DC (pulse) LCD LOAD signal, output
5-3 3-14 0/5 V DC (pulse) LCD CP signal, output
5-4 3-14 GND LCD VSS signal, output
5-5 3-14 5 V DC LCD VDD signal, output
5-6 3-14 GND LCD VSS signal, output
5-7 3-14 Analog LCD control signal, output

2-3-16
 2DF

Terminals (CN) Voltage Remarks

5-8 3-14 0/5 V DC LCD DISPLAY signal, output
5-9 3-14 0/5 V DC (pulse) LCD D0 data, output
5-10 3-14 0/5 V DC (pulse) LCD D1 data, output
5-11 3-14 0/5 V DC (pulse) LCD D2 data, output
5-12 3-14 0/5 V DC (pulse) LCD D3 data, output
6-1 3-14 Analog LCD BACK LIGHT control signal, output
6-3 3-14 GND LCD BACK LIGHT control signal, output

2-3-17
2DF

2-3-4 Scanner drive PCB

SDPCB

SM Vref
SM M1 SM A
SM M2 SM _A
SM M3 SM B SM

SM M4 Stepping SM _B
SM M5 motor
driver
SM CLK IC1
SM CWB
MPCB
SM RET

SM ENABLE EL
DT1

EL ON REM EL
DT2 INPCB

ODSW
ODSW

SHPSW
SHPSW

Figure 2-3-8 Scanner drive PCB block diagram

The scanner drive PCB (SDPCB) consists of a stepping motor driver IC (IC1) as the center, digital transistors DT1 and DT2,
etc.
Drive of the scanner motor (SM) is controlled by the current setting voltage (SM Vref) that is output from the main PCB
(MPCB), the mode signals (SM M1 to M5, SM CWB), the phase switchover clock signal (SM CLK), and the drive/stop signal
(SM ENABLE).
Also the main PCB (MPCB) outputs a control signal (EL) through a digital transistor (DT2) to the inverter PCB (INPCB) to
turn on or off the exposure lamp (EL).
Also the scanner drive PCB (SDPCB) acts as an interchange circuit of signals for the original detection switch (ODSW) and
the scanner home position switch (SHPSW).

2-3-18
 2DF

C111 C115
CN6

C120
JP102 CN1

C118
L1
4 1

R12
C114

C3
C1
C110

C5
1 14

J2 R1

R7

R8

R9
C101

L3

JP100
JP101
L2

JP15

JP16
C10

L4
JP5

JP6

C6

C7

C8

C9
R2
R3

R6
C11

J1
+

6
EC B
DT1 C12 C13 IC1 J5

CN2
1

J3
J4
CN4

C17 22 1

C18
+
C16

J6
J9

1
C19
J11
3

D1 C21

J7
C20
J8
C22
+
J10

J12 +

J13

R15
R16
JP7
JP8

3
C100

CN5
C102
TP1

J16
J17
J15
J14

1
C23
JP9
L5 CN3
5
C112 1 6 C117
E C B
C119

C121
2 JP11

C116
DT2
C113

Figure 2-3-9 Scanner drive motor PCB silk-screen diagram

Terminals (CN) Voltage Remarks

1-2 1-1 0/5 V DC SHPSW on/off, output
1-3 1-1 0/5 V DC EL on/off, input
1-4 1-1 0/5 V DC SM ENABLE signal, input
1-5 1-1 0/5 V DC SM RET signal, input
1-6 1-1 0/5 V DC SM CWB signal, input
1-7 1-1 0/5 V DC (pulse) SM CLOCK signal, input
1-8 1-1 0/5 V DC SM drive control voltage M5, input
1-9 1-1 0/5 V DC SM drive control voltage M4, input
1-10 1-1 0/5 V DC SM drive control voltage M3, input
1-11 1-1 0/5 V DC SM drive control voltage M2, input
1-12 1-1 0/5 V DC SM drive control voltage M1, input
1-13 1-1 SM current control voltage Vref, input
1-14 1-1 0/5 V DC ODSW on/off, input
2-1 3-6 0/24 V DC (pulse) SM coil energization pulse, output (_B)
2-2 3-6 24 V DC 24 V DC supply for SM, output
2-3 3-6 0/24 V DC (pulse) SM coil energization pulse, output (B)
2-4 3-6 0/24 V DC (pulse) SM coil energization pulse, output (A)
2-5 3-6 24 V DC 24 V DC supply for SM, output
2-6 3-6 0/24 V DC (pulse) SM coil energization pulse, output (_A)
3-1 3-5 0/5 V DC EL on/off, output
3-2 3-5 0/5 V DC EL on/off, output
3-3 3-5 24 V DC 24 V DC supply for INPCB, output
3-4 3-5 24 V DC 24 V DC supply for INPCB, output
4-1 4-3 5 V DC 5 V DC supply for SHPSW, output
4-2 4-3 0/5 V DC SHPSW on/off, output
5-1 5-3 5 V DC 5 V DC supply for ODSW, output
5-2 5-3 0/5 V DC ODSW on/off, output
6-2 6-1 24 V DC 24 V DC supply from PSPCB, input
6-4 6-3 5 V DC 5 V DC supply from PSPCB, input

2-3-19
2DF

2-3-5 CCD PCB

CCD PCB

2 CLK
Clock driver
RS IC1, 4 RS Differential
CCD receiver
IC2 CLP CLP IC3
Main PCB
SHIFT SHIFT

Odd Odd
Transistor Q2

Even Even
Transistor Q1

Figure 2-3-10 CCD PCB block diagram

The CCD PCB (CCDPCB) is equipped with a CCD sensor IC2 for original scanning.
The clock signals (CLK, RS, CLP, and SHIFT) for driving the CCD sensor (IC2) are sent as differential signals from the main
PCB (MPCB), reconstructed to normal signals by the differential receiver (IC3), and then input to the CCD sensor (IC2) via
the clock driver (IC1 and IC4).
Image signals are analog signals. Even- and odd-numbered pixels are output separately. These analog image signals are
amplified by emitter followers in the transistors Q1 and Q2 and then transmitted to the analog signal processing circuit in the
main PCB (MPCB).

2-3-20
 2DF

C22 Q2 L1

R41
R42

15
C1

C2

CN1
L4 TP4 R2 L2 Q3

G
R43

14
R39 R40

C13
C8
C23

R4
C9

IC1
9
R38 C21 R3 R11

C14
C15

S
R21

C12
R26 R6
R5

9
C4
R28
R8

C10
R30 R10 C11

R18
L5
L6
R13
R32

C18
C16

IC3
C7
R19

1
C20
1

R44
C19

R20
TP1 R23

2
R33 Q1 R15 R22
IC4

R16

1
R45 R36 R46
C17 R24 L3 C6
R35

Figure 2-3-11 CCD PCB silk-screen diagram

Terminals (CN) Voltage Remarks

1-1 1-5 0/5 V DC (pulse) CCDPCB RS – signal, input
1-2 1-5 0/5 V DC (pulse) CCDPCB RS + signal, input
1-3 1-5 0/5 V DC (pulse) CCDPCB CLOCK – signal, input
1-4 1-5 0/5 V DC (pulse) CCDPCB CLOCK + signal, input
1-6 1-5 0/5 V DC (pulse) CCDPCB SHIFT signal, input
1-8 1-7 0/5 V DC (pulse) CCDPCB CLP signal, input
1-10 1-9 5 V DC 5 V DC supply from CCDPCB, input
1-11 1-9 12 V DC 12 V DC supply from CCDPCB, input
1-12 1-13 4.5 V DC (pulse) CCDPCB EVEN signal, output (analog)
1-14 1-15 4.5 V DC (pulse) CCDPCB ODD signal, output (analog)

2-3-21
 Timing chart No. 1 From the main switch turned on to machine stabilization

MSW: On
Primary stabilization
fixing temperature
110°C/230°F
Secondary stabilization
fixing temperature
165°C/329°F
Copying enabled*1
MSW CN31-1

FH-M CN1-5 500 ms 13 s

30 s

FH-S CN1-6 500 ms

DM CN11-9,11 100 ms 10 s*3

DB REM CN7-1 700 ms

CFM (second speed) 15 s

Half speed Full speed Half speed

CFM (first speed) Full speed *2

PM CN8-12 1000 ms

TC REM CN7-10 3s 2s
900 ms
+400 V +3000 V +400 V

*1: Copying is enabled as follows:

1. When fixing temperature at the main switch turning on is 100°C/212°F or lower
Absolute humidity is 15 g/m3 or higher:
Copying is enabled 120 s after fixing heater M (FH-M) turning on.
2. When fixing temperature at the main switch turning on is 100°C/212°F or lower
The fixing temperature at the main switch turning on is 13°C/55.4°F or higher and the ambient temperature is 18°C/64.4°F or higher:
Copying is enabled at the earlier timing of either 41 s after fixing heater M (FH-M) turning on or when the copier enters secondary stabilization.
Other than the above:
Copying is enabled at the later timing of either 69 s after fixing heater M (FH-M) turning on or when the copier enters secondary stabilization.
3. Other conditions than 1 and 2
Copying is enabled when the copier enters secondary stabilization.
*2: Rotates for 180 s at full speed when the fixing temperature at the main switch turning on is 100°C/212°F or lower, and the absolute humidity is 15 g/m3 or higher.
2DF

2-4-1
*3: 60 s when the fixing temperature at main switch turning on is 100°C/212°F or lower, and the absolute humidity is 15 g/m3 or higher.
 Timing chart No. 2 Scanner initialization 2DF

2-4-2
Scanner initialization (SHPSW: ON, ODSW: ON)
Fwd. rotation
SM CN37-8,9,10 Off
11,12
Rev. rotation
SHPSW CN37-2
1418 P 944 P 944 P 1418 P

200 P 114 P

Scanner initialization (SHPSW: ON, ODSW: OFF)

Fwd. rotation
SM CN37-8,9,10 Off
11,12
Rev. rotation
SHPSW CN37-2
1418 P 944 P 944 P 1418 P 824 P

200 P 114 P

Scanner initialization (SHPSW: OFF, ODSW: ON)

Fwd. rotation
SM CN37-8,9,10 Off
11,12
Rev. rotation

1418 P 944 P 944 P 1418 P

SHPSW CN37-2
200 P 200 P 114 P

Scanner initialization (SHPSW: OFF, ODSW: OFF)

Fwd. rotation
SM CN37-8,9,10 Off
11,12
Rev. rotation

1418 P 944 P 944 P 1418 P 824 P

SHPSW CN37-2
200 P 200 P 114 P
 Timing chart No. 3 Original scanning operation

Scanning an A3/11" × 17" original, magnification ratio 100% (ODSW: ON)

200 P
Fwd. rotation
SM CN37-8,9,10 Off 10394 P
11,12
Rev. rotation

SHPSW CN37-2

FVSYNC signal 338 P 472 P 9922 P 200 P

Scanning an A3/11" × 17" original, magnification ratio 100% (ODSW: OFF)

200 P
Fwd. rotation
SM CN37-8,9,10 Off
10394 P
11,12
Rev. rotation

SHPSW CN37-2

FVSYNC signal 824 P 338 P 472 P 9922 P 200 P

2DF

2-4-3
 Timing chart No. 4 Copying an A3/11"× ×17" original onto an A5R/51/2"×
×81/2" copy paper from the bypass table, 2DF

2-4-4
magnification ratio 25%, manual copy density control

Image ready
Start key
48 ms
100 ms
DM CN11-9,11

PFM CN11-10,12

RCL CN16-B6 190 ms 124 ms

200 ms

BYPPFCL CN6-A9 100 ms 280 ms

BYPFCL CN6-A11 35 ms

MC REM CN7-4 100 ms

5000 ms
EM CN16-B11 - B14

RSW CN10-A2
409 ms

ESW CN16-A11

BYPFSW CN9-A2

323 ms
TC REM CN7-10

DB REM CN7-1 210 ms

19 ms

SC REM CN7-6 324 ms

FCL1 CN11-14
11 ms
 Timing chart No. 5 Copying an A4/11"××81/2" original onto an A4/11"×
×81/2" copy paper from the copier upper drawer, magnification
ratio 100%, auto copy density control

Image ready
Start key
48 ms
100 ms
DM CN11-9,11

PFM CN11-10,12

RCL CN16-B6 190 ms 124 ms

Min 78 ms

FCL1 CN11-14 30 ms
75 ms

PFCL-U CN16-B1 17 ms

MC REM CN7-4 100 ms

5000 ms
EM CN16-B11 - B14

RSW CN10-A2
409 ms

ESW CN16-A11

FSW1 CN11-17

323 ms
TC REM CN7-10

DB REM CN7-1 19 ms 210 ms

SC REM CN7-6 1 ms 324 ms

2DF

2-4-5
 Timing chart No. 6 Copying an A4/11"××81/2" original onto an A4/11"××81/2" copy paper from the copier upper drawer, magnification 2DF

2-4-6
ratio 100%, auto copy density control, ejection to the job separator

Image ready
Start key

100 ms 48 ms 300 ms
DM CN11-9,11

PFM CN11-10,12

RCL CN16-B6 190 ms 124 ms

Min 78 ms

FCL1 CN11-14 30 ms

17 ms
PFCL-U CN16-B1

100 ms 200 ms
MC REM CN7-4

EM CN16-B11 - B14
296 ms
FSSOL CN16-A2 970 ms

FSSOL(JOB) CN35-12

RSW CN10-A2

FSW1 CN11-17

FSSW CN16-A5

JBESW CN35-1
323 ms 215 ms
TC REM CN7-10 350 ms

500 ms
DB REM CN7-1
 Timing chart No. 7 Continuous copying of an A5R/51/2"× ×81/2" original onto two sheets of A3/11"×
×17" copy paper from the copier
lower drawer, magnification ratio 400%, manual copy density control

Image ready
Start key
48 ms
DM CN11-9,11 100 ms 300 ms

PFM CN11-10,12

190 ms
RCL CN16-B6 190 ms 124 ms 124 ms
Min 78 ms 78 ms
FCL1 CN11-14 30 ms 30 ms

FCL2 CN13-A12
17 ms 17 ms
PFCL-L CN16-B4

MC REM CN7-4 100 ms 200 ms

EM CN16-B11 - B14

RSW CN10-A2
518 ms

ESW CN16-A11

FSW1 CN11-17

FSW2 CN13-A10

TC REM CN7-10 323 ms 323 ms 350 ms 215 ms

DB REM CN7-1 500 ms

2DF

2-4-7
 Timing chart No. 8 Duplex copying of an A3/11"××17" book original onto one duplex A4/11"×
×81/2" copy from the copier upper drawer, 2DF

2-4-8
magnification ratio 100%, auto copy density control

Image ready
Image ready
Start key

DM CN11-9,11 100 ms 48 ms 48 ms 300 ms

PFM CN11-10,12

RCL CN16-B6 190 ms 124 ms 190 ms 124 ms

Min 78 ms Min 78 ms

FCL1 CN11-14 30 ms 30 ms

PFCL-U CN16-B1 17 ms

DUPCL CN10-B2 15 ms

MC REM CN7-4 100 ms 200 ms

Fwd.rotation Rev. rotation Fwd.rotation
EM CN16-B11 - B14 at low speed 50 ms at high speed 50 ms at low speed
40 ms
RSW CN10-A2
518 ms
ESW CN16-A11

FSW1 CN11-17

FSSW CN16-A5

DUPPCSW CN10-B4

323 ms 323 ms
TC REM CN7-10 350 ms 215 ms

DB REM CN7-1 500 ms

 Timing chart No. 9 Continuous, duplex copying of two single-sided A4/11"××81/2" originals onto two duplex A4/11"×
×81/2" copies
from the copier upper drawer, magnification ratio 100%, auto copy density control

Image ready
Image ready
Start key
48 ms 48 ms
DM CN11-9,11 100 ms 300 ms

PFM CN11-10,12
Min 2000 ms
RCL CN16-B6 190 ms 124 ms 190 ms 124 ms 190 ms 124 ms 190 ms 124 ms
Min 78 ms Min 78 ms
FCL1 CN11-14 30 ms 30 ms 30 ms 30 ms
17 ms
PFCL-U CN16-B1 15 ms

DUPCL CN10-B2 17 ms 15 ms

MC REM CN7-4 100 ms 200 ms

50 ms 50 ms 50 ms 50 ms
Fwd. rotation Rev. rotation Fwd. rotation Rev. rotation Fwd. rotation
EM CN16-B11 - B14 at low speed at high speed at low speed at high speed at low speed
40 ms 40 ms
RSW CN10-A2
518 ms
1400 ms 1400 ms
ESW CN16-A11

FSW1 CN11-17

FSSW CN16-A5

DUPPCSW CN10-B4

323 ms 323 ms 323 ms 323 ms 350 ms 215 ms

TC REM CN7-10

500 ms
DB REM CN7-1
2DF

2-4-9
 Timing chart No. 10 Continuous copying an A3/11"× ×17" original onto two sheets of A3/11"×
×17" copy paper from the paper feed desk 2DF
upper drawer, magnification ratio 100%, auto copy density control

2-4-10
Image ready
Start key

300 ms
DM CN11-9,11 100 ms 48 ms

PFM CN11-10,12

DDM

190 ms 190 ms
RCL CN16-B6 124 ms 124 ms
Min 78 ms 78 ms

FCL1 CN11-14 30 ms 30 ms

FCL2 CN13-A12

FCL3 CN13-A5 17 ms 17 ms

DPFCL-U 1379 ms 1379 ms

MC REM CN7-4 100 ms

200 ms

EM CN16-B11 - B14

RSW CN10-A2
518 ms

ESW CN16-A11

FSW1 CN11-17

FSW2 CN13-A10

FSW3 CN13-A2
215 ms
323 ms 323 ms
TC REM CN7-10
350 ms
500 ms
DB REM CN7-1
 Timing chart No. 11 Copying an A4/11"× ×81/2" original onto an A4/11"×
×81/2" copy paper from the paper feed desk lower drawer,
magnification ratio 100%, manual copy density control
Image ready
Start key
300 ms
100 ms 48 ms
DM CN11-9,11

PFM CN11-10,12

DDM
190 ms
RCL CN16-B6 Min 78 ms 124 ms

FCL1 CN11-14 30 ms

FCL2 CN13-A12 17 ms

FCL3 CN13-A5 123 ms

DFCL 123 ms

344 ms
DPFCL-L
200 ms
100 ms
MC REM CN7-4

518 ms
EM CN16-B11 - B14

RSW CN10-A2

ESW CN16-A11

FSW1 CN11-17

FSW2 CN13-A10

FSW3 CN13-A2

DFSW
215 ms
323 ms
TC REM CN7-10 350 ms
500 ms
2DF

2-4-11
DB REM CN7-1
 Chart of image adjustment procedures 2DF

2-4-12
Adjust- Maintenance mode
ing Item Image Description Original Page Remarks
order Item No. Mode
Adjusting the lateral square- Adjusting the skew of the laser scanner –– –– U993 (PG2) 1-6-22
ness (printing adjustment) unit (printing adjustment) Test chart
1

Adjusting the magnification Polygon motor speed adjustment U053 POLYGON U053 test 1-4-12
in the main scanning di- MOTOR pattern
2 rection (printing adjustment)

Adjusting the magnification Drive motor speed adjustment U053 MAIN MOTOR U053 test 1-4-12
in the auxiliary scanning di- pattern
3 rection (printing adjustment)

Adjusting the center line of Adjusting the LSU print start timing U034 LSUOUT U034 test 1-6-12 The center line of the bypass
the bypass table (printing pattern table is used as the reference
4 adjustment) in the adjustment of the center
lines for other paper sources.

Adjusting the center line of Adjusting the position of the rack –– –– U034 test –– Adjusts the position of each
the drawers and large paper adjuster pattern paper source.
5 deck (printing adjustment)

Adjusting the leading edge Registration clutch turning on timing U034 RCL ON U034 test 1-6-10 To make an adjustment for
registration (printing adjust- (secondary paper feed start timing) pattern duplex copying, select “RCL
6 ment) ON (DUP)”.

Adjusting the leading edge LSU illumination start timing U402 LEAD U402 test 1-6-13
margin (printing adjustment) pattern
7

Adjusting the trailing edge LSU illumination end timing U402 TRAIL U402 test 1-6-13 To make an adjustment for
margin (printing adjustment) pattern duplex copying, select “TRAIL
8 (DUP)”.
 Adjust- Maintenance mode
ing Item Image Description Original Page Remarks
order Item No. Mode
Adjusting the left and right LSU illumination start/end timing U402 AC U402 test 1-6-13
margins (printing adjust- pattern
9 ment)

Adjusting the lateral square- Adjusting the position of the ISU (scann- –– –– Test chart 1-6-25
ness (scanning adjustment) ing adjustment)
0

Adjusting magnification of Data processing U065 MAIN SCAN ADJ Test chart 1-6-27 No adjustment for copying
the scanner in the main using the DF.
! scanning direction
(scanning adjustment)

Adjusting magnification of Original scanning speed U065 SUB SCAN ADJ Test chart 1-6-28 U065: For copying an original
the scanner in the auxiliary U070 ADJUST DATA 1-4-15 placed on the contact glass.
@ scanning direction U070: For copying originals
(scanning adjustment) from the DF.

Adjusting the center line Adjusting the original scan data (image U067 ADJUST DATA Test chart 1-6-30 U067: For copying an original
(scanning adjustment) adjustment) U072 ADJUST DATA 1-4-17 placed on the contact glass.
# U072: For copying originals
from the DF.

Adjusting the leading edge Original scan start timing U066 ADJUST DATA Test chart 1-6-29 U066: For copying an original
registration (scanning ad- U071 LEAD EDGE ADJ 1-4-16 placed on the contact glass.
$ justment) U071: For copying originals
from the DF.

Adjusting the leading edge Adjusting the original scan data (image U403 B MARGIN Test chart 1-6-31 U403: For copying an original
margin (scanning adjust- adjustment) U404 B MARGIN 1-4-49 placed on the contact glass.
% ment) U404: For copying originals
from the DF.

Adjusting the trailing edge Adjusting the original scan data (image U403 D MARGIN Test chart 1-6-31 U403: For copying an original
margin (scanning adjust- adjustment) U404 D MARGIN 1-4-49 placed on the contact glass.
^ ment) U404: For copying originals
from the DF.
2DF

2-4-13
 Adjust- Maintenance mode
2DF
ing Item Image Description Original Page Remarks
order Item No. Mode

2-4-14
Adjusting the left and right Adjusting the original scan data (image U403 AC MARGIN Test chart 1-6-31 U403: For copying an original
margins (scanning adjust- adjustment) U404 AC MARGIN 1-4-49 placed on the contact glass.
& ment) U404: For copying originals
from the DF.

When maintenance item U092 (Adjusting the scanner automatically) is run using the specified original (P/N 2A068020), the following adjustments are automatically made:
• Adjusting the scanner center line (U067)
• Adjusting the scanner leading edge registration (U066)
• Adjusting the scanner magnification in the main scanning direction (U065)
• Adjusting the scanner magnification in the auxiliary scanning direction (U065)

Image quality
Item Specifications
100% magnification Copier: ±0.8%
Using SRDF: ±1.5%
Enlargement/reduction Copier: ±1.0%
Using SRDF: ±1.5%
Lateral squareness (copier mode) Copier: ±1.5 mm/375 mm
Using SRDF: ±2.5 mm/375 mm
Lateral squareness (printer mode) ±1.0 mm/375 mm
Margins (copier mode) A: 2.0 +2.0
–1.5 mm
B: 3.0 ± 2.5 mm
C: 2.0 +2.0
–1.5 mm
D: 3.0 ± 2.5mm
Margins (printer mode) A: 6.0 ± 2.0 mm
B: 6.0 ± 2.5 mm
C: 6.0 ± 2.0 mm
D: 6.0 ± 2.5 mm
Leading edge registration Drawer: ±2.5 mm
Bypass: ±2.5 mm
Duplex copying: ±2.5 mm
Skewed paper feed (left-right difference) Drawer: 1.5 mm or less
Bypass: 1.5 mm or less
Duplex copying: 2.0 mm or less
Lateral image shifting Drawer: ±2.0 mm or less
Bypass: ±2.0 mm or less
Duplex copying: ±3.0 mm or less
Curling Drawer: ±3.0 mm or less
Bypass: 10.0 mm or less
Duplex copying: 10.0 mm or less
 2DF

Maintenance parts list

Maintenance part name

Part No. Fig. No. Ref. No.
Name used in service manual Name used in parts list
Upper/lower paper feed pulley PULLEY, PAPER FEED 2AR07220 4 4
Upper/lower separation pulley PULLEY, SEPARATION 2AR07230 4 5
Upper/lower fowarding pulley PULLEY, LEADING FEED 2AR07240 4 6
Bypass paper feed pulley UPPER PULLEY, BYPASS 61706770 10 29
Bypass separation pulley PULLEY, SEPARATION 2AR07230 10 20
Bypass forwarding pulley PULLEY, LEADING FEED 2AR07240 10 34
Bypass feed roller 1 ROLLER2 BYPASSFEED 2BL06540 11 11
Bypass feed roller 2 ROLLER4 BYPASSFEED 2BL06560 11 12
Left registration roller ROLLER REGIST L 2BL16021 7 11
Right registration roller RIGHT ROLLER REGIST 2BL06270 5 51
Feed pulley PULLEY FEED 2BL16080 6,7 37,8
Feed roller 1 PULLEY FEED 2BL06930 5 59
Feed roller 2 ROLLER B FEED 2BL06080 5 5
Feed roller 3 ROLLER C FEED 2BL06090 5 6
Registration switch SWITCH REGISTRATION 2BL27420 5 32
Contact glass CONTACT GLASS 35912010 9 46
Slit glass CONTACT GLASS, ADF 2AV12250 9 19
Mirror 1 MIRROR A 2AV12150 9 9
Mirror 2 and mirror 3 MIRROR B 2AV12160 9 10
Exposure lamp LAMP, SCANNER 2AV12100 9 4
Original size detection switvh SENSOR, ORIGINAL 35927290 9 53
Transfer roller unit TR-700 TRANSFER ASS’Y 5PLPXHLAPKX 7 25
Developing unit DEVELOPER ASS’Y 2BJ93010 13 1
Drum unit DRUM ASS’Y 2BJ93020 15 1
Main charger unit MC ASS’Y 2BL93090 15 48
Fixing unit FIXING ASS’Y 120 2BJ93040 14 -
FIXING ASS’Y 230 2BJ93050 14 -
Press roller separation claw CLAW, PRESS ROLLER 2BL20350 6 8
Eject roller ROLLER EXIT 2BL21020 8 4
Switchback roller ROLLER FEED SHIFT 2BL21030 8 3
Eject pulley PULLEY EXIT B 2BL21520 8 37
Switchback pulley PULLEY FEED SHIFT 2BL21330 6 2

2-4-15
2DF

Periodic maintenance procedures

Maintenance
Section Method Maintenance cycle Points and cautions Page
part/location
Test copy and Perform at the maximum Test copy Every service
test print copy size

Maintenance
Section Method Maintenance cycle Points and cautions Page
part/location
Paper feed Upper/lower paper feed Replace Every service Replace. 1-6-3
section pulley
Upper/lower separation Replace Every service Replace. 1-6-3
pulley
Upper/lower forwarding Replace Every service Replace. 1-6-3
pulley
Bypass paper feed pulley Replace Every service Replace. 1-6-5
Bypass separation pulley Replace Every service Replace. 1-6-5
Bypass forwarding pulley Replace Every service Replace. 1-6-5
Bypass feed roller 1 Clean Every service Clean with alcohol or a dry cloth.
Bypass feed roller 2 Clean Every service Clean with alcohol or a dry cloth.
Left registration roller Clean Every service Clean with alcohol or a dry cloth.
Right registration roller Clean Every service Clean with alcohol or a dry cloth.
Feed pulley Clean Every service Clean with alcohol or a dry cloth.
Feed roller 1 Clean Every service Clean with alcohol or a dry cloth.
Feed roller 2 Clean Every service Clean with alcohol or a dry cloth.
Feed roller 3 Clean Every service Clean with alcohol or a dry cloth.
Registration switch Clean Every service Clean with a dry cloth.

Maintenance
Section Method Maintenance cycle Points and cautions Page
part/location
Optical section Slit glass Clean Every service Clean with alcohol and then
a dry cloth.
Contact glass Clean Every service Clean with alcohol and then
a dry cloth.
Mirror 1 Clean Every service Clean with alcohol and then
a dry cloth only if vertical black
lines appear on the copy image.
Mirror 2 and mirror 3 Clean Every service Clean with alcohol and then
a dry cloth only if vertical black
lines appear on the copy image.
Lens Clean Every service Clean with a dry cloth only if
vertical black lines appear on
the copy image.
Reflector Clean Every service Clean with a dry cloth only if
vertical black lines appear on
the copy image.
Exposure lamp Clean or replace Every service Replace if an image problem
occurs.
Optical rail Grease Every service Check noise and shifting and
then apply scanner rail grease
PG671.
Original size detection Clean Every service Clean the sensor emitter and
sensor receiver with alcohol or a dry
cloth only if there is a problem.

2-4-16
 2DF

Maintenance
Section Method Maintenance cycle Points and cautions Page
part/location
Transfer/ Transfer roller unit Replace Every service Replace. 1-6-35
separation
section

Maintenance
Section Method Maintenance cycle Points and cautions Page
part/location
Developing Developing unit Replace Every service Replace. 1-6-34
section

Maintenance
Section Method Maintenance cycle Points and cautions Page
part/location
Main charging/ Drum unit Replace Every service Replace. 1-6-32
drum section

Maintenance
Section Method Maintenance cycle Points and cautions Page
part/location
Fixing section Fixing unit Replace Every service Replace. 1-6-36
Press roller separation Check, replace Every service Check and replace if it is
claw and clean deformed. Clean with alcohol
after feeding 500,000 sheets.

Maintenance
Section Method Maintenance cycle Points and cautions Page
part/location
Eject section Eject roller Clean Every service Clean with alcohol or a dry cloth.
Eject pulley Clean Every service Clean with alcohol or a dry cloth.
Switchback roller Clean Every service Clean with alcohol or a dry cloth.
Switchback pulley Clean Every service Clean with alcohol or a dry cloth.

Maintenance
Section Method Maintenance cycle Points and cautions Page
part/location
Covers Covers Clean Every service Clean with alcohol or a dry cloth.

Maintenance
Section Method Maintenance cycle Points and cautions Page
part/location
Other Image quality Check and adjust Every service

2-4-17
2DF

Optional devices supplied parts list

Paper feed desk

Name used in service manual Name used in installation guide Part No.
Retainer Retainer 3AT02150
Pin Pin 74315200
CVM4 × 06 cross-head chromate binding screw Cross-head chromate binding screw, CVM4 × 06 B1004060
Stay Stay 3AT02250
M4 × 10 chrome TP screw Chrome TP screw, M4 × 10 B4104100

Facsimile System

Name used in service manual Name used in installation guide Part No.
Fax board Fax board 3CM01020
Auxiliary power source PCB (100 V) Auxiliary power source PCB (100 V) 3CM01030
Auxiliary power source PCB (200 V) Auxiliary power source PCB (200 V) 3CM01040
Fax kit label sheet Fax kit label sheet 3CM05010
Certification label (120 V only) FCC68 label sheet (120 V only) 3CM05040
Certification label (120 V only) LINE IC label sheet (120 V only) 3CM05030
NCU retainer NCU retainer 3CM26010
Auxiliary power source retainer Auxiliary power source retainer 3CM26020
Fax cable Fax cable 3CM27010
Fax-PCB-Power cable Fax-PCB-Power cable 3CM27040
NCU board (N.A.) NCU board (N.A.) 3CM01030
NCU board (CTR) NCU board (CTR) 3CM01040
NCU board (EUG) NCU board (EUG) 3CM01050
NCU cable NCU cable 2AW27020
Battery pack Battery pack 2AW27070
Speaker Speaker 35427120
Modular connecter cable (120 V only) “B“ Modular connecter cable (120 V only) 76727300
M3 × 06 chrome binding screw +TP-A chrome binding screw M3 × 06 B4103060
Upper-sheet Upper-sheet 3CM26030
Lower-sheet Lower-sheet 3CM26040

Network facsimile System

Name used in service manual Name used in installation guide Part No.
Fax board Fax board 3DB01010
Auxiliary power source PCB assembly (100 V) Auxiliary power source PCB assembly (100 V) 3CM01030
Auxiliary power source PCB assembly (200 V) Auxiliary power source PCB assembly (200 V) 3CM01040
Fax kit label sheet Fax kit label sheet 3CM05010
Certification label (120 V only) FCC68 label sheet (120 V only) 3CM05040
Certification label (120 V only) LINE IC label sheet (120 V only) 3CM05030
Modular connecter cable (120 V only) “B“ Modular connecter cable (120 V only) 76727300
M3 × 06 chrome binding screw +TP-A chrome binding screw M3 × 06 B4103060
Fax cable Fax cable 3CM27010
Fax-PCB-Power cable Fax-PCB-Power cable 3CM27040
NCU board assembly (N.A.) NCU board assembly (N.A.) 3B101030
NCU board assembly (CTR) NCU board assembly (CTR) 3B101040
NCU cable NCU cable 2AW27020

Printing System

Name used in service manual Name used in installation guide Part No.
Clamp Clamp, CKN-05 M2105890
Band Band M2307010

2-4-18
 2DF

Scanning System

Name used in service manual Name used in installation guide Part No.
RTC board RTC board 3CS01010
Sccaner board Sccaner board 3B301010
CD-ROM (scanner) CD-ROM (scanner) 3B327010
CD-ROM (document processing) CD-ROM (document processing) 3BJ27060

Duplex unit

Name used in service manual Name used in installation guide Part No.
Nut plate Nut plate 2BL07120
M3 × 10 bronze binding screw M3 × 10 bronze binding screw B1303100

Built-in finisher

Name used in service manual Name used in installation guide Part No.
Large ejection cover Large ejection cover 3B504020
Front ejection cover Front ejection cover 3B504080
Rear ejection cover Rear ejection cover 3B504090
Flat spring ejection Flat spring ejection 3B502050
+TP-A chrome screw M3 × 05 +TP-A chrome screw M3 × 05 B4103050
+TP-A bronze screw M3 × 05 +TP-A bronze screw M3 × 05 B4303050

Job separator

Name used in service manual Name used in installation guide Part No.
Job separator tray Job separator tray 3B620030
Left front cover JS Left front cover JS 3B604010
+TP-A bronze screw M3 × 05 +TP-A bronze screw M3 × 05 B4303050

2-4-19
 8
7
6
5
4
3
2
1
FFC
40 40 FMAIN_RXD0
39 39 GND 24V 1 C119-2
MODRXD 22 22 C119-1
RXIN 38 38 FMAIN_TXD0 PG- 2
21 21

C32(CN45)
C6-3 BE
C6-1 BE
37 37 GND

C6-4 OE
C6-2 RD
C30-1 LB
MODTXD

C30-8 BE
C30-7 PK
C30-4 BE
C30-3 PE
20 20

C30-6 DE
C30-2 BN

C30-5 RD

C33-9 WE
C33-8 WE
C33-7 WE
C33-6 WE
C33-5 WE
C33-4 WE
C33-3 WE
C33-2 WE
C33-1 WE
C30-9 YW

C30-13 LB
C30-14 PE
C30-12 BN
C30-10 GY
C30-11 GN
/MAINSTS

C33-14 WE
C33-13 WE
C33-12 WE
C33-11 WE
C33-10 WE
36 36

C29-A9 WE
C29-A8 WE
C29-A7 WE
C29-A6 WE
C29-A5 WE
C29-A4 WE
C29-A3 WE
C29-A2 WE
C29-A1 WE

/RINGDET 19 19

C29-A11 WE
C29-A10 WE
C29-B12 YW
C29-B11 YW
C29-B10 YW

/ONHOOK2 +2.4V 35 35 /SETFAX

18 18 1
/ONHOOK1 2 S.GND 34 34 /SREQ
17 17 C97-1 GY

OPTION

A
A

1 12

BACKUP
/PREQ CON

NCUPCB
33 33

BATTERY
NCUTYPE1 16 16 - 2 11 C97-2 GY
SPEAKER 32 32 /FAXREADY

C102
C104
C103

/OFFHOOK 15 15 1 2 DREQ 3 10 C97-3 GY

S.GND 31 31 /FAXRESET C97-4 GY

1
2
3
4
5
6
7
8
9
NCUTYPE3 14 14 2 2 1 4 9
1
2
3

ACK

10
11
12
13
14
C97-5 GY

C40 (CN1)
30 30 GND

4 5V
NCUTYPE2 RXD 5 8

SPEAKER
13 13

9
8
7
6
5
4
3
2
1

2 24V
C97-6 GY

14 1 GND
3 GND
1 GND
FMMI_RXD2 7

14
13
12
11
10
29 29 GND 6

C12(CN6)
FAXSEL 12 12 C97-7 GY

1 14 ODSW
3 12 SM M1
4 11 SM M2
5 10 SM M3
6 9 SM M4
7 8 SM M5

C61
GND TXD 7 6

13 2 SHPSW
28 28

8 7 SM CLK
12 3 EL REM
10 5 SM RET
7 5 5V

TELSEL

9 6 SM CWB
11 11 C97-8 GY
General wiring diagram

2 13 SM VREF
8
2 10 24V
4 8 24V

FMMI_TXD2 GND 5

C36(CN40)
27 27
5 7 GND
8 4 GND
3 GND

SDPCB
EARTH 10 10 C97-9 GY

11 4 SM ENABLE
GND GND 9 4
PLSDIL 26 26 C97-10 GY
1 11 BYPFCL

9 9 GND 10 3
6 6 BYPPSW

3 9 BYPPFCL

25 25 /MMISTS C97-11 GY
1 5V(200Ω)
2 BYPPLSW

SHUNT 8 8 5V 11 2

OPTION
FAXPCB
C97-12 GY
9 3 BYPPWSW2
10 2 BYPPWSW1
11 1 BYPPWSW0

KMUTE 24 24 GND 5V 12 1
7 7

C119 PG
24V
EXTRING2 23 23 FFOCLK
6 6 C98-1 RD

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

5V
22 22 GND 24V 1

/B
/A

5V
5V
EL
EL
EXTRING1

N.C
N.C

12V
5 5 C98-2 BE

24V
24V

GND
MRY
GND
24V
24V
P.GND 2

MSW
FMREOUT

GND
GND
GND
GND
21 21

AGND
GND 4 4 3 C98-3 BE

ODSW
GND GND
PD
20 20

SHPSW
+5V 3 3 COIN EN 4 C98-4 YW

C55(CN44)
GND
GND
GND
1
2
3

VDO-
R24V
19 19 FMIPOUT0 C98-5 BN

VDO+
SCAN

AGND 2 2 N.C 5

LASER
SCCLK

GND C98-6 GN

2
1
18 18

SAMPLE
5V SAFE
6
SCRDYN

+12V FEED COUNT

3
2
1

1 1 C98-7 GY
/FOHSTHIN

POWCONT
17 17 EJECT COUNT 7
C98-8 RD

C35(CN39)

9
8
7
6
5
4
3
2
1
C42(CN3)

C43(CN4)
8

C44(CN5)
16 16 GND COPYING SIG

C41(CN2)

C116
3
2
1
3
1
2
3
4
5
6
1
2
3
4
5
6

2
1
TXD 9 C98-9 WE
15 15 FOVSYNC C98-10 RD
3
2
1

GND 10
1
2

14 14 GND C98-11 WE

C32-2 BE
C32-1 RD
RXD 11
13 13 /FPVSYNC GND 12 C98-12 GN
2
1

C18-5 LB
C18-4 BE
C18-2 BE
GND

1
2
3
4
5
6

1
2
3

C18-1 OE
12 12

C18-3 YW

C115-2 BE
C115-1 PE
11 11 /FPHSYNC KEY CARD REM B10
3 5V
2 PD
1 GND

10 10 GND 24V A10

B
B

SM
9 9 /FPVD GND B9
1
2
3

3
2
1
COPY ENABLE
BYPPSW

A9
BYPPLSW

8 8 GND
B0 B8
1
2

7 7 FMRE

1
2
3
4
5
6
1
2
3
4
5

5V A8 PD
6 6 GND B1
2
1

B7

SHPSW
5 5 FVCLK 5V
LASER SCANNER UNIT

A7
BYPPFCL

EL ON

C111
4 4 GND B2 B6

OPTION
3 3 FPVCLK 5V A6 EL
C50-1 WE

ODSW
24V
DIGLED6 1 GND B3 B5
2 2

C34(CN38)
C50-2 WE 5V A5

(ONLY JAPAN)
DIGLED5 2 C50-3 WE 1 1 M3.3V B4

KEY CARD MK-1

B4

INPCB
DIGLED4 3 C50-4 WE
C112

Y2 DIGLED3 4 5V A4
1 C50-5 WE C59-13 WE B5 B3
X2 DIGLED2 5 C50-6 WE 1 DIGLED6
BYPFCL

PANEL
2 C59-12 WE 5V A3

TOUCH
Y1 DIGLED1 6 2 DIGLED5
BYPPWSW

C62
3 C50-7 WE C59-11 WE B6 B2 F.G
X1 SCAN4 7 3 DIGLED4

C59
4 C50-8 WE C59-10 WE 5V A2
SCAN3 8 4 DIGLED3
SCAN2 9 C50-9 WE C59-9 WE B7 B1
C50-10 WE C59-8 WE 5 DIGLED2 5V A1
SCAN1 10 6 DIGLED1
C50-11 WE C59-7 WE

F.G
DIGKEY3 11 7 SCAN4
DIGKEY2 12 C50-12 WE C59-6 WE
8 SCAN3

C50(CN36)
LCD FRAME 12 1 DIGKEY1 13 C50-13 WE C59-5 WE
LCD LOAD 11 2 9 SCAN2
C59-4 WE
C7-1 BK

C49-A1 WE 10 SCAN1
C7-3 WE

C35-3 BE
C35-2 BE

LCD CP 10 3
C35-8 RD
C35-7 GY
C35-1 RD
C36-1 GY
C36-2 GY
C36-3 GY
C36-4 GY
C36-5 GY
C36-6 GY
C36-7 GY
C36-8 GY
C36-9 GY

17 C59-3 WE
C35-6 GN

BUZZER
C35-9 WE
C35-4 YW

11 DIGKEY3
C35-10 RD
C36-10 GY
C36-11 GY
C36-12 GY

C35-12 GN

C49-A2 WE
C35-11 WE

C33-17 WE
C33-16 WE
C33-15 WE
C29-B6 YW
C29-B7 YW
C29-B1 YW
C29-B2 YW
C29-B3 YW
C29-B4 YW
C29-B5 YW

C29-B8 YW
C29-B9 YW

LCD VSS(SG) 9 4 X1 16 C59-2 WE 1 C40-14 WE

8 C49-A3 WE 12 DIGKEY2 GND
LCD VDD(+5V) 5 Y1 15 C59-1 WE C40-13 WE

JOB
13 DIGKEY1 SHPSW 2

UNIT
LCD VSS(SG) 7 6 14 C49-A4 WE C40-12 WE
X2
2
1
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1

EL REM 3

C72
1
2

C49-A5 WE C60-17 WE
12
11
10
12
11
10

OPTION
LCD CONT 6 7 Y2 13 C40-11 WE
C98
C97

OPCB-L
C49-A6 WE A1 BUZZER SM ENABLE 4
C107
C105

C100

5 8 12 C60-16 WE C40-10 WE

FSSOL
1
2
3
4
5
6
7
8
9

LCD DISP OFF LCD FRAME

5 1
4 2
3 3
2 4
1 5

2 1
1 2

C
C

1
2

A2 X1 SM RET 5
10
11

C49-A7 WE C60-15 WE

SEPARATER
4 9 11 C40-9 WE
F.G

LCD D0

C60
LCD LOAD
24V

TXD

SM CWB 6
RXD

A3 Y1
GND
GND
GND

C49-A8 WE
--

LCD D1 3 10 10 C60-14 WE C40-8 WE

1 3 5V

LCD CP
5V
5V
5V

7
P.GND

C49-A9 WE C60-13 WE A4 X2 SM CLK

9 C40-7 WE
OFS

2
TXD

11
3 1 GND

LCD D2
ACK

LCD VSS (SG)

RXD

GND
GND
GND
GND
GND
GND
CON

COIN EN

C106

A5 Y2 SM M5 8
2 2 OSDS

C49-A10 WE
DREQ

LCD D3 1 12 LCD VDD (+5V) 8 C60-12 WE C40-6 WE

EPDSW

JBESW
DH

SM M4 9

LED
A6 LCD FRAME
TDDSW

LCD VSS (SG) 7 C49-A11 WE C60-11 WE C40-5 WE

SM M3 10

C33(CN37)
FEED COUNT

A7 LCD LOAD
COPYING SIG

C49-A12 WE
EJECT COUNT

LCD DISP OFF 6 C60-10 WE C40-4 WE

FRCSW

C49-A13 WE A8 LCD CP SM M2 11
LCD D0 5 C60-9 WE SM M1 12 C40-3 WE
C49-A14 WE A9 LCD VSS (ONLY JAPAN)

2
1
3
3
2
1
C60-8 WE C40-2 WE

3
2
1
LCD D1 4 A10 LCD VDD SM VREF 13 COIN VENDER
LCD D2 3 C49-A15 WE C60-7 WE C40-1 WE (ONLY JAPAN)
C49-A16 WE A11 LCD VSS ODSW 14 OPTION
LCD D3 2 C60-6 WE GND 15 C100-3 WE KMAS
A12 LCD DISP OFF

LCD
VEE OFF 1 C49-A17 WE C60-5 WE C100-2 WE
and 220-240V spec.)

SIG
OPTION
A13 LCD D0 16
CFM3

C60-4 WE 5V 17 C100-1 WE
(Optional for 120V spec.

A14 LCD D1

5V
5V
1
2
3

C60-3 WE

GND
GND
GND
A15 LCD D2
1
2
3

C49-B1 WE

R24V
P.GND 17 C60-2 WE A16 LCD D3

JBESW
C49-B2 WE

EPDSW
FSSOL2
FSSOL1
16

SET SIG
R24V C60-1 WE C105-1 YW
3
2
1

15

LED REM
C49-B3 WE C63-17 WE A17 VEE OFF RS-

5V(200Ω)
CCFT HOT LAMP OFF 15 14 C105-2 GY
1 14 C49-B4 WE C63-16 WE B1 P.GND RS+
N.C S.GND B2 R24V CLK- 13 C105-3 YW OPTION
2 C49-B5 WE C63-15 WE

C49(CN42)
BACK LIGHT 5V 13 C105-4 GY
FG

BUILT-IN FINIHSER

C77
N.C 3 C49-B6 WE B3 LAMP OFF CLK+ 12
DIGLED8 12 C63-14 WE C105-5 YW
CCFT COLD

OPCB-R
C49-B7 WE B4 S.GND 11
OSDS

4 DIGLED7 11 C63-13 WE GND

HVTPCB

C49-B8 WE B5 5V SHIFT 10 C105-6 GY

SCAN8 10 C63-12 WE C105-7 YW
9 C49-B9 WE C63-11 WE B6 DIGLED8 GND 9
SCAN7 C105-8 GY

9 5
8 C49-B10 WE C63-10 WE B7 DIGLED7 CLP 8

C63
SCAN6

C64
C105-9 YW
5V

B8 SCAN8 7
C31(CN34)

7 C49-B11 WE C63-9 WE GND

UNIT
TXD

SCAN5
RXD

C105-10 GY
GND
GND
GND
GND
GND

B9 SCAN7 6
GND

C49-B12 WE 5V
R24V

6 C63-8 WE
TiCTL
RiSEL

DIGKEY9
F2 24V
F2 24V

C105-11 GY
RESET

TVSEL

B10 SCAN6
BVSEL

5
HVCLK

THFDR
THVDR

C49-B13 WE 12V
THRDR

1
2
TiSENS
RHVDR
MHVDR
SET SIG

5 C63-7 WE
TVSENS

DIGKEY8 B11 SCAN5 C105-12 YW

OFS

INVERTER
4 C49-B14 WE C63-6 WE EVEN
DIGKEY7 B12 DIGKEY9 3 C104-13 GY

1 13 C48-1 WE
2 12 C48-2 WE
3 11 C48-3 WE
4 10 C48-4 WE
5 9 C48-5 WE
6 8 C48-6 WE
7 7 C48-7 WE
8 6 C48-8 WE
10 4 C48-9 WE
C49-B15 WE C63-5 WE GND

D
D

C48-10 WE
11 3 C48-11 WE
12 2 C48-12 WE
13 1 C48-13 WE
DIGKEY6 B13 DIGKEY8 ODD 2 C105-14 YW
C49-B16 WE

TCS
DIGKEY5 2 C63-4 WE B14 DIGKEY7 C101-15 GY
C49-B17 WE C63-3 WE GND 1
DIGKEY4 1 B15 DIGKEY6
1
2
3
4
5
6
7
8
9

UNIT
9
8
7
6
5
4
3
2
1
10
11
12

C63-2 WE
14
13
12
11
10

B16 DIGKEY5 SCCLK 14 1 C102-14 LB

C63-1 WE B17 DIGKEY4 C102-13 BN
SCRDYN 13 2
TDDSW
12

SCAN 12 3 C102-12 PE
C64-13 WE
C108
C114

DEVELOPING
13 R24V GND 11 4 C102-11 BE
C64-12 WE C102-10 RD
C64-11 WE 12 FSSOL1 R24V 10 5

TNFSOL
11 FSSOL2 C102-9 DE

1
2
3
6

C107
CL C64-10 WE GND 9
C102-8 PK

TNS
10 5V(200Ω)
14 c28-1 WE
11 C25-1 GY
10 C25-2 GY
9 C25-3 GY
8 C25-4 GY
7 C25-5 GY
6 C25-6 GY
5 C25-7 GY
4 C25-8 GY
3 C25-9 GY

CFM2
8
6 C28-9 WE
7 C28-8 WE
8 C28-7 WE
9 C28-6 WE
10 C28-5 WE
11 C28-4 WE
12 C28-3 WE
13 C28-2 WE

PD

BYPFSW
C64-9 WE
2 C25-10 GY
1 C25-11 GY
C25-12 GY

1 C28-14 WE
2 C28-13 WE
3 C28-12 WE
4 C28-11 WE
5 C28-10 WE

9 LED REM 8 C102-7 BE

RCL
C64-8 WE GND 7
C30(CN8)

PFCL-U
PFCL-L
8 5V VDO- 6 9 C102-6 YW

3
2
1
C64-7 WE C102-5 GY
7 EPDSW 10

DRUM UNIT
C64-6 WE VDO+ 5
C102-4 GN

3
2
1
6 GND LASER 4 11
C48(CN35)

C64-5 WE C102-3 BN

REM 2 1
GND 1 2
5 SET SIG POWCONT 3 12
C64-4 WE 4 GND C102-2 LB
SAMPLE 2 13
C3-9

C64-3 WE C102-1 PE
C3-10
C24-1
C24-2

3 GND

FUSE
14

TCDSW
C64-2 WE 5V SAFE 1
C1-1 RD

2 5V

EEPROM
C23-2 BE
C23-4 BE

C23-1 RD
C10-1 RD
C31-1 GY
C31-3 GY
C31-5 GY
C31-6 GY
C31-8 GY

C64-1 WE
C23-3 WE
C31-2 YW
C31-4 YW
C31-7 YW
C31-9 YW
C31-10 GY
C31-12 GY
C31-14 GY

5V 3
TCS 2
GND 1
1 JBESW C103-1 YW
C31-11 YW
C31-13 YW
C31-15 YW

GND 12B
C70-3 WE BYPPLSW 11B C103-2 YW

1
2
3
C70-2 WE A1 GND 10B C103-3 YW
5V (200Ω)
C52

8
7
6
5
4
3
2
1

A2 BYPFSW C107-1 YW
C11

C70-1 WE GND 9B
A3 5V C107-2 YW
C101

C69-3 WE 8B
1
2
3
4
5
6
7
8
1 1
2 2

CFM3
10 5V

A4 5V

24V
C106-1 YW

RCL
1 RS-

C69-2 WE
11 12V

GND 7B
8 CLP
2 RS+

15 GND
14 ODD
13 GND
9 GND
7 GND
5 GND
4 CLK-

A5 TCS C106-2 YW
3 CLK+

12 EVEN

C69-1 WE
6 SHIFT

FRCSW 6B
A6 GND C105-1 YW

PFCL-U 1
UP24V 2
C68-10 WE GND 5B
TXD
RXD

P0 10
24V

GND
GND
GND
R24V

5V 9
TNS 8
GND 7
DVUNITN 6
DEVHITN 5
N.C 4
3
2
1
1
2
3
R24V 1
CFM2 REM 2
GND 1
BYPFSW 2
5V 3
A7 P0 C105-2 YW
F3 5V

C68-9 WE TDDSW 4B
RESET

A8 5V C105-3 YW
SET SIG

E
E

C68-8 WE 3B

C79
GND

P0 10 10

4
3
2
1
1 1

C74
C76
C78
A9 TNS C105-4 YW

C68
C69
C67
C66
C70
C65

C68-7 WE OFS 2B
A10 GND 1B C105-5 YW
C68-6 WE A11 DVUNITN 5V CCDPCB
C68-5 WE 12A
C29(CN6)

A12 DEVHITN 11A C104-1 WE

A13 N.C BYPFCL NO
C67-2 YW 24V 10A C104-2 WE

1 2 C45-B5 YW
2 1 C45-B6 YW
FINIHSER
B1 GND

GND 1 2 C47-B1 YW
TNFSOL 2 1 C47-B2 YW
TCDSW 2 C47-B3 YW
GND 1 C47-B4 YW
2 C46-B9 YW
2 C45-B1 YW
1 C45-B2 YW
LO24V 1 2 C45-B3 YW
PFCL-L 2 1 C45-B4 YW
C104-3 WE
GND 5 5 C47-B9 YW

10 C47-A7 WE
9 C47-A8 WE
8 C47-A9 WE
3 C47-A4 WE
2 C47-A5 WE
1 C47-A6 WE
3 C47-A1 WE
2 C47-A2 WE
1 C47-A3 WE
GND 9 9 C47-B5 YW
CL 8 8 C47-B6 YW
EEDATA 7 7 C47-B7 YW
EESCLK 6 6 C47-B8 YW
COM
C67-1 YW BYPPFCL 9A

1 C46-B10 YW
DRUNITN 4 4 C47-B10 YW
5V 3 3 C47-B11 YW
N.C 2 2 C47-B12 YW

7 C47-A10 WE
6 C47-A11 WE
5 C47-A12 WE
OPTION
B2 TNFSOL C104-4 WE
SSW2

C66-2 YW
C47(CN9)

24V 8A
C66-1 YW B3 TCDSW 7A C104-5 WE
B4 GND GND
C65-10 YW BYPPSW 6A C104-6 WE
C65-9 YW B5 P0 5A C104-7 WE
5V
N.C

B6 GND
GND
GND
GND
GND

C65-8 YW GND 4A C104-8 WE NO

F1 24V
F1 24V
F1 24V
F1 24V

C65-7 YW B7 CL 3A C104-9 WE COM

B8 EEDATA BYPPWSW2
C65-6 YW BYPPWSW1 2A C104-10 WE
SSW1

C45-B7 YW
C45-B8 YW
C45-B9 YW
B9 EESCLK C104-11 WE

C46-A1 WE
C46-A2 WE
C46-A3 WE
C46-B1 YW
C46-B2 YW
C46-B3 YW
C46-B4 YW
C46-B5 YW
C46-B6 YW
C46-B7 YW
C46-B8 YW
C45-A1 WE
C45-A2 WE
C45-A3 WE
C45-A4 WE
C45-A5 WE
C45-A6 WE
C45-A7 WE
C45-A8 WE
C45-A9 WE

C45-B10 YW
C65-5 YW BYPPWSW0 1A

C45-A10 WE
C45-A11 WE
C45-A12 WE
C45-A14 WE
C45-A13 WE
C45-A16 WE
C45-A15 WE
C45-B14 YW
C45-B13 YW
C45-B12 YW
C45-B11 YW
C45-B16 YW
C45-B15 YW

B10 GND
C65-4 YW B11 DRUNITN
C65-3 YW C108-14 WE

1
2
3
4
5
6
7
8
9
B12 5V BVSEL 1
2
1

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

C83
C84
C96

C82

C73
C75
10
11
12
C81
1
2
3
4
5
6
7
8
9

C108-13 WE

C80
R24V 2

1 4
2 3
3 2
4 1
B13 N.C C108-12 WE

9
8
7
6
5
4
3
2
1
FTH

1
2

3
2
1
GND

8
7
6
5
4
3
2
1
12
11
10
9

C73-3 WE C108-11 WE
C51

MHVDR 4
2 GND

A1 GND
EM A
EM B

C73-2 WE C108-10 WE
1 CCSW

HVCLK 5

5V
5V
5V

5V
A2 RSW
EM A-D
EM B-D

C108-9 WE

24V

24V
C73-1 WE

GND
GND
GND

GND

GND
6
ESW
2 1 GND
1 C3-1

A3 5V RHVDR
FIXING UNIT

C108-8 WE

FSSW
C71-5 WE
N.C

2
1

RiSEL 7
1
2

A4 P0

DUP P0

3
2
1
FSSOL2
FSSOL1
8 C3-8 BE
7 C3-7 BE
6 C3-6 BE
5 C3-5 BE

SET SIG
C108-7 WE

DUPFCL
4 C3-4 RD
3 C3-3 RD
2 C3-2 RD
RD

C71-4 WE

1
2
3
4
A5 5V TiCTL 8
1 2 CFM1 24V
C28(CN7)

C108-6 WE

DUPPCSW
C71-3 WE

4
3
2
1
A6 FTH TVSEL 9
C71-2 WE C108-5 WE

5V
A7 FTH OUT THVDR 10
C108-4 WE

5V

GND
C71-1 WE

RSW
A8 GND THRDR 11
FTS

GND
C108-3 WE
2 R24V

ETTH
A9 5V THFDR 12

F
F

TiSENS 13 C108-2 WE
C75-8 YW A10 C108-1 WE

3
2
1
HUMSENS
B1 24V TVSENS 14
1 CFM4 REM

C75-7 YW
3
2
1
C46(CN10)

B2 DUPFCL
CCSW
EM

C75-6 YW C39-1 GY
P0
5V

B3 GND DFTSW 12A

170°C

FTH
FH-S

FH-M

3
2
1

C75-5 YW C39-2 GY
GND

B4 DUPPCSW OSLSW 11A

C75-4 YW B5 5V DFSSW1 10A C39-3 GY

1
2
C75-3 YW
FTH OUT

B6 GND DFSSW2 9A C39-4 GY

C75-2 YW C39-5 GY

2
1
B7 SET SIG OSWSW 8A
C75-1 YW C39-6 GY
ESW

HUMSENS
B8 DUP P0 DF SET 7A
C74-2 YW C39-7 GY

RSW
B9 R24V RESERVE(SW) 6A

DUPPCSW
C74-1 YW C39-8 GY C27-12A GY
1
2
3
4
5

B10 RESERVE(SW) 5A 1 12 DFTSW C6-5 RD

FSSW

C39-9 GY C27-11A GY F2 24V 11 1

OSSW 4A 2 11 OSLSW F2 24V 10 2 C6-6 RD
C81-12 WE A1 FSSOL2 3A C39-10 GY C27-10A GY 3 10 DFSSW1 C6-7 BE
OFSW
CFM1

C81-11 WE C39-11 GY C27-9A GY GND 9 3

OPTION A2 FSSOL1 OSBSW 2A 4 9 DFSSW2 C6-8 BE

UNIT
5
4
3
2
1
4
3
2
1

GND 8 4
3
2
1

C81-10 WE A3 24V N.C 1A C39-12 GY C27-8A GY 5 8 OSWSW C6-9 OE

RESIST
C81-9 WE C27-7A GY F3 5V 7 5
CFM4

-RATION
7 DF SET C6-10 OE
C27(CN33)

12B 6
1
2
3
4
5
4
3
2
1

A4 GND OFM ENABLE F3 5V 6 6

DUPLEX UNIT
C81-8 WE C27-6A GY
C39

C38-1 YW 6
C58

A5 FSSW OFM ENABLE 11B 7 RESERVE(SW) C6-11 BE

C71

DUPFCL
C81-7 WE C38-2 YW C27-5A GY GND 5 7
A6 5V OFSOL(ACT) 10B 8 5 RESERVE(SW) GND 4 8 C6-12 BE
C81-6 WE A7 GND OFSOL(RET) 9B C38-3 YW C27-4A GY 9 4 OSSW
C81-5 WE C38-4 YW C27-3A GY N.C 3 9
UNIT

A8 SBFSSOL 8B 10 3 OFSW OFM CLK 2 10

EJECT

FSSOL

C81-4 WE A9 5V 7B C38-5 YW C27-2A GY 11 2 OSBSW

C81-3 WE RESERVE(SOL) C27-1A GY OFM RET 1 11
A10 GND EFSSOL 6B C38-6 YW 12 1 N.C
C46-A4 WE
C46-A5 WE
C46-A6 WE
C46-A7 WE
C46-A8 WE

UNIT C81-2 WE A11 ESW OFCL 5B C38-7 YW

F.G

C27-11B YW
FEED1

C81-1 WE A12 5V SBPSOL(ACT) 4B C38-8 YW 1 12 OFM ENABLE

C27-10B YW
FCL1
DM

C82-2 WE C38-9 YW 2 11 OFM ENABLE

PFM

A13 CFM1 24V SBPSOL(RET) 3B C27-9B YW

C82-1 WE A14 GND OSLED(GREEN) 2B C38-10 YW 3 10 OFSOL(ACT)
C83-2 WE C38-11 YW C27-8B YW 4 9 OFSOL(RET)
A15 GND OSLED(RED) 1B C27-7B YW
C83-1 WE A16 CCSW 5 8 SBFSSOL
C27-6B YW

G
G

C76-2 YW B1 PFCL-U C37-1 GY 6 7 RESERVE(SOL)

C38

C76-1 YW OCM M1 11 C27-5B YW 7 6 EFSSOL

C37-2 GY
C45(CN16)

2
1

B2 UP24V 10 C27-4B YW
ILSW

C78-2 YW OCM M2 8 5 OFCL

B3 LO24V OCM M2 9 C37-3 GY C27-3B YW
C78-1 YW C37-4 GY 9 4 SBPSOL(ACT)
1
2
PWSW-L

B4 PFCL-L OCM VREF 8 C27-2B YW

PWSW-U

C79-2 YW 3
FSW1

C37-5 GY 10 SBPSOL(RET)
OPTION

B5 24V 7
5V

OCM CWB C27-1B YW

SG
PG

PG

C79-1 YW B6 RCL C37-6 GY 11 2 OSLED(GREEN)

OCM CLK 6
R24V

R24V

C80-4 YW B7 5V C37-7 GY 12 1 OSLED(RED)

5
DM L/D
DM S/S

OCM RET
DM CLK

C80-3 YW
STDF or SRDF

C37-8 GY
PFM L/D

UPPER DRAWER
PFM S/S
C26(CN32)

C26-11 GY
LOWER DRAWER

1
2
3
4
5
1
2
3
4
5

B8 HUMSENS OCM ENABLE 4 1 11 OCM M1

C80-2 YW B9 GND C37-9 GY C26-10 GY
C80-1 YW OFM CWB 3 2 10 OCM M2
C37-10 GY C26-9 GY
3 1
2 2
1 3

B10 ETTH OFM CLK 2 3 9 OCM M2

C84-4 YW B11 EM B-D C37-11 GY C26-8 GY
C84-3 YW OFM RET 1 4 8 OCM VREF
B12 EM B C26-7 GY 7
4
3
7
6
5
4
3
2
1

C84-2 YW 5 OCM CWB

C86
C85

B13 EM A-D C114-1 GY C26-6 GY

C37

RESET 12 6 6 OCM CLK

5V

C84-1 YW
C13-8 BE
C13-7 BE
C13-4 BE
C13-3 BE
C12-3 BE
C12-1 BE

C13-6 OE
C13-5 OE
C13-2 RD
C13-1 RD
C12-4 OE
C12-2 RD

B14 C114-2 GY C26-5 GY

24V

EM A SET SIG 11 7 5 OCM RET

GND

GND
GND

C96-2 YW
FCL1
R24V

R24V

C114-3 GY C26-4 GY
FSW1

B15 R24V 10 4
LO24V
UP24V

C96-1 YW GND 8 OCM ENABLE

B16 CFM4 REM RXD 9 C114-4 GY C26-3 GY 9 3 OFM CWB
PWSW-L2
PWSW-L1
PWSW-L0
PWSW-U2
PWSW-U1
PWSW-U0

C114-5 GY C26-2 GY
C21-9 LB

8 2
2 C21-4 BE
C21-7 BE
C21-3 BE

GND 10 OFM CLK

1 C21-2 RD
C21-5 OE
C21-1 RD

C85-1 RD
C21-13 PK
C21-11 PE

C21-10 BN

1 R24V C114-6 GY C26-1 GY

C21-12 YW

C86-1 RD TXD 7 11 1 OFM RET

2 R24V GND 6 C114-7 GY
C85-2 BE 3 PG C114-8 GY
C25(CN50)

C86-2 BE 5V 5
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1

4 PG C114-9 GY
5
4
3
2
1

C85-3 OE GND 4
5 5V GND 3 C114-10 GY
2
7
2
7

6 5V F2 24V 2 C114-11 GY
C88

C85-4 BE
C89

C87

7 SG F2 24V 1 C114-12 GY
8 SG
C7-3 WE

C85-5 LB 9 DM S/S C52-1

C19-B7 YW
C19-B6 YW
C19-B5 YW
C19-B4 YW
C19-B3 YW
C19-B2 YW
C19-B1 YW
C22-B2 BE
C22-B4 BE
C22-B3 RD

C86-3 BN
C22-A2 BE
C22-A4 BE
C22-A6 PK

2
C22-B1 WE
C22-B5 YW

C22-A5 BN

SET SIG
C22-A1 RD

MPCB

C19-A17 WE
C19-A16 WE
C19-A15 WE
C19-A14 WE
C19-A13 WE
C19-A19 WE
C19-A18 WE
C22-A3 WE

10 PFM S/S
9
8
7
6
5
4
3
2
1
3
2
1

C52-2
6 C20-9 GY
5 C20-8 GY
8 C20-7 GY
1 C20-6 GY
4 C20-5 GY
3 C20-4 GY
6 C20-3 GY
5 C20-2 GY
8 C20-1 GY

C85-6 PE
12
11
10

RESET 1 C51-2 RD
3 C21-16 BE
1 C21-14 PE

5 C21-18 OE
2 C21-15 RD
1 C20-12 GY
4 C20-11 GY
3 C20-10 GY

4 C21-17 GN

11 DM L/D
C21(CN11)

1 F1 24V
H
H

C24(CN5)

C86-4 YW 12 PFM L/D C51-3 RD 2 F1 24V

5V

6
5
4
3
2
1

C85-7 PK N.C 10 C51-4 RD

C92

C91
C99
24V

C93
C57

13 DM CLK 3 F1 24V
C54
GND
GND
GND
GND
GND
GND
FH-S
FH-M

C87-1 PE 14 FCL1 N.C 9 C51-5 RD 4 F1 24V

H LIVE

1
2
3
4
5
6
F3 24V
F3 24V
F2 24V
F2 24V

C87-2 RD 15 24V N.C 8 C51-6 BE

2 GND
4 GND
2 GND
2 GND

5
7 TXD

GND
2 GND
4 GND
9 RXD
8 GND
10 GND

C87-3 BE 16 GND N.C 7 C51-7 BE 6 GND

1 PLSW-L
1 PLSW-U

C87-4 GN N.C 6 C51-8 BE

5 LM-U W2

17 FSW1 7 GND
TXD
RXD
GND
GND

3 LM-L SW1
5 LM-L SW2

1 LM-L REM
12 NEUTRAL

3 LM-U SW1
1 LM-U REM

C87-5 OE
11 FSW3 SIG

18 5V N.C 5 C51-9 BE 8 GND C5(CN5)

C52-3 BE
RESET

C6(CN6)
C23(CN4)

GND 4 C52-8 RD
SET SIG

C52-4 WE 9 F3 24V
C19-A9 WE
C19-A8 WE
C19-A7 WE
C19-A6 WE
C19-A5 WE
C19-A4 WE
C19-A3 WE
C19-A2 WE
C19-A1 WE

C88-5 GY TXD 3 C52-7 BE

C19-A12 WE
C19-A11 WE
C19-A10 WE

1 R24V C52-5 BE 10 GND

C88-6 GY 2 UP24V GND 2 C53-4 OE 11 5V
C52-6 RD
C3(CN3)

C88-3 GY RXD 1 C53-3 BE

9
8
7
6

3 PWSW-U0
5
4
3
2
1

12 GND
or

12
11
10

C88-4 GY C52-2 BE
C90

4 PWSW-U1 C53-5 GN 13 GND

DESK

C88-1 GY
DECK

RESET B6 C52-1 RD
1
2
3
4
5
6
7
8
9

5 PWSW-U2
BOX

C54-11 YW 14 24V
MAIL

10
11
12
OPTION

C88-2 GY 6 GND FSW3 SIG B5 C56-6 RD 15 F1 24V

C89-5 GY GND B4 C54-10 BE C56-5 RD
LM-L

7
LM-U

R24V
5V

16 F1 24V
5V

C54-9 RD
5V

24V

C89-6 GY B3 C56-4 RD
24V

RXD CFM5 REM 1 2

24V

PLSW-L

GND
C20(CN12)

GND

8 LO24V
PLSW-U

17 F3 5V
GND
FCL3

C54-8 BE
FCL2
LIVE

GND
GND

FSW3

FSW2

C89-3 GY GND B2 C56-3 BE

SCSW

9 PWSW-L0 18 GND 24V 2 1

CFM5

C54-7 WE
RESET

GND
GND
GND

C89-4 GY TXD B1 C56-2 BE

F3 5V

10 PWSW-L1 C57-1 PK 19 GND

OPTION F1 24V
F1 24V

C89-1 GY 11 PWSW-L2 RESET A6 C56-1 BE 20 GND

C57-2 BN
C22(CN3)

C89-2 GY 12 GND SET SIG A5

C57-3 BE C10-6 RD
C4(CN4)

GND A4 6 F2 24V
PSPCB

C90-12 WE TXD A3 C57-4 WE C10-5 OE 5 5V

UPPER

A1 GND
6
5
4
3
2
1

C57-5 BE
LOWER

C90-11 WE A2 C10-4 BE
1
2
3
4
5
6

GND 4 GND
C53

A2 FSW3 C57-6 RD C10-3 BE

C90-10 WE
FEED UNIT

RXD A1
PSW-L

3 GND
PSW-U

A3 5V INLET
C1(CN1)

C10-2 BE
1
2
3
4
5
6

C90-9 WE A4 24V 2 GND TB1

C56

C1-6 RD C11-1 RD LIVE

3 1
2 2
1 3

C90-8 WE A5 FCL3 F2 24V 6 1 24V

C90-7 WE 5 C1-5 OE (#250)
A6 GND 5V C17-8 BN GROUND
C7-1 BK

C90-6 WE 4 C1-4 BE 1 LMPMON TB2

1
2
3
1
2
3

I
I

GND
C3-13 BE
C3-12 BE
C3-14 RD
C3-11 OE

A7 FSW2 C1-3 BE C17-7 BE 2 GND COM

FEED UNIT LICSW-L
LICSW-U

C90-5 WE
C22-B6 GN

GND 3 (#250)
1
2

A8 5V C17-6 YW
C10(CN2)

C90-4 WE C1-2 BE 3 FH-S

C3-20 BE
C3-19 BE
C3-18 BE
C3-17 OE
C3-16 RD
C3-15 RD

GND 2
2
1

A9 GND C11-2 RD C17-5 PK 4 FH-M

C90-3 WE A10 SCSW R24V 1 C17-4 OE
C90-2 WE 5 5V
C2(CN2)

1
2

A11 24V C17-3 GN

1
2
3
1
2
3

C2-1 BN
TB3

6 ZCROSS
FSW3

C90-1 WE A12 FCL2 LMPMON 8 C17-2 GY

2
1
(#187)

C91-5 WE GND 7 C2-2 BE 7 CFM5

2
1
C9(CN9)

A13 LM-U SW2 C2-3 YW C17-1 PE 8 SLEEP

C91-4 WE FH-S 6
1
2

A14 GND
SCSW

C91-3 WE FH-M 5 C2-4 PK

5V
5V

A15 LM-U SW1

5V
5V

C91-2 WE 5V 4 C2-5 OE NEUTRAL

GND
GND
GND

GND

A16 GND C2-6 GN

C17(CN1)

C91-1 WE ZCROSS 3 LIVE

PSW-L
PSW-U
C14-5
C14-6
C14-3
C14-4

A17 LM-U REM C2-7 GY LIVE

C92-2 WE
LICSW-L

2
LICSW-U

A18 GND CFM5

C2-8 PE
C14-7 BE

FCL3
C14-9 RD

C92-1 WE
C14-8 YW

SLEEP 1
C14-10 LB

A19 PLSW-L
3 1
2 2
1 3

C99-2 YW B1 GMD
C99-1 YW B2 PLSW-U 12
5V

C93-5 YW
12V

11
FCL2
SUB

MRY
GND

B3 LM-L SW2
4
3
2
1

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

C93-4 YW 10 C15-1 LB
AGND

K.COUNT REM
C15

B4 GND
PSPCB

C15-2 RD
C110
C109
OPTION

C93-3 YW 24V 9
2 1
1 2
2 1
1 2

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

B5 LM-L SW1 C15-3 YW

C93-2 YW SET SIG 8
VERTICAL
24V

B6 GND
GND

C93-1 YW GND 7 C15-4 BE

B7 LM-L REM C109-2
FSW2
24V
24V

C94-6 YW TC2 REM 6

5
4
3
2
1

SET SIG
C18

B8 GND
MSW

C109-2 RD
6
5
4
3
2
1
6
5
4
3
2
1

C94-5 YW 5
C14(CN31)

B9 LICSW-U 24V
CONVEYING UNIT

C110-1
TC REM

C94-4 YW TC REM 4
TC2 REM

B10 5V C110-2 RD C16

K.COUNT REM

C94-3 YW 24V 3
C95

B11 GND C16-1 PE C14-2 PE

C94
RESERVE

C94-2 YW B12 PSW-U MSW OFF REM 2 1 2 MSW OFF REM

C94-1 YW 24V 1 C16-2 RD C14-1 RD 2 1 24V
B13 5V
C95-6 YW B14 GND
C95-5 YW B15 LICSW-L
C95-4 YW C116-1 OE
J
J

OPTION

5 C19-B9 YW
6 C19-B8 YW

B16 5V C116-3 BE
1 C19-B19 YW
2 C19-B18 YW
3 C19-B17 YW
4 C19-B16 YW
5 C19-B15 YW
6 C19-B14 YW
1 C19-B13 YW
2 C19-B12 YW
3 C19-B11 YW
4 C19-B10 YW

C95-3 YW B17 GND

C19(CN13)

C95-2 YW C116-5 YW
KEY CARD 1

B18 PSW-L C116-6 BE

TC

C95-1 YW
TC2

B19 5V C116-7 LB
C116-8 PE
OR KEY COUNTER

C115 1 1 MSW
C116-9 BE 2 2 GND
8
7
6
5
4
3
2
1

2-4-20
2DF
KYOCERA MITA EUROPE B.V. KYOCERA MITA DANMARK A/S
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KYOCERA MITA TAIWAN
KYOCERA MITA SVENSKA AB CORPORATION
Vretenvagen 2 7F-1~2, No.41, Lane 221, Gangchi Rd.
171 54 Solna, Sweden Neihu District, Taipei, Taiwan, 114. R.O.C.
Phone: (08) 546 550 00 Phone: (02) 87511560
KYOCERA MITA NORGE
Postboks 150 Oppsal, NO 0619 Oslo KYOCERA MITA
Olaf Helsetsvei 6, NO 0694 Oslo CORPORATION
Phone: (22) 62 73 00 2-28, 1-chome, Tamatsukuri, Chuo-ku
Osaka 540-8585, Japan
Phone: (06) 6764-3555

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is a trademark of Kyocera Corporation
is a registered trademark of KYOCERA MITA CORPORATION
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