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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 1 of 70

PM43
PM43c

Rev ECN Number Description Updated Pages Change Type Released by

A 330442 First release Te Chhang
B 330740 Added cleaning solution for platen rollers and Te Chhang
printhead.
Added internal rewinder and LTS procedure

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 2 of 70

Table of Contents
Section 1 ............................................................................................................................................................................................ 4
Exploded View ................................................................................................................................................................................... 4
PM43 Media Section ......................................................................................................................................................................... 4
Section 2 ............................................................................................................................................................................................ 5
Exploded View Front Panels Full Touch & ICON ......................................................................................................................... 5
Section 3............................................................................................................................................................................................ 6
Exploded View ................................................................................................................................................................................... 6
PM43 Electronics Section .................................................................................................................................................................. 6
TABLE 1: Available Models ................................................................................................................................................................ 6
Exploded View - PM43 Media Section .............................................................................................................................................. 7
Covers - Media Compartment ........................................................................................................................................................... 7
Cover – Electronics Compartment .................................................................................................................................................. 10
Front Panel Assembly ...................................................................................................................................................................... 11
Platen Roller .................................................................................................................................................................................... 13
Printhead......................................................................................................................................................................................... 14
Print Unit Components ................................................................................................................................................................... 15
Printhead Lift Handle and Pressure Adjust Mechanism .................................................................................................................. 18
Printhead Lift Sensor Assembly....................................................................................................................................................... 20
Printhead Lift Assembly ................................................................................................................................................................. 21
Printhead Lift Arm ........................................................................................................................................................................... 22
Media Guide Top Dancer Assembly and Dancer Assembly ............................................................................................................ 23
Media Guide, Bottom Assy.............................................................................................................................................................. 25
Front Media Door Replacement ..................................................................................................................................................... 26
Ribbon Wrinkle Adjustment Mechanism ........................................................................................................................................ 28
Ribbon Adjust Sub Assembly ........................................................................................................................................................... 29
Tear Bar ........................................................................................................................................................................................... 30
Media Hanger and Edge Guides ...................................................................................................................................................... 31
Ribbon Supply Assembly ................................................................................................................................................................. 32
Ribbon Take-up Mechanism ........................................................................................................................................................... 34
PM43 and PM43c Base Assembly & Rubber Feet ........................................................................................................................... 35
Spine................................................................................................................................................................................................ 37
Back Plate ........................................................................................................................................................................................ 38
Exploded View - Front Panels, Full Touch & ICON – Components .................................................................................................. 39
PM43 Service (Print) Button (Full Touch and ICON) ....................................................................................................................... 39
USB Cable Assembly ........................................................................................................................................................................ 40
Touchless Configuration Unit Assembly with Battery ..................................................................................................................... 41
User Interface PCB Assembly .......................................................................................................................................................... 42
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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 3 of 70

PM43 / PM43c LCD Touch Panel and Display Assembly ................................................................................................................. 44

PM43/PM43c Speaker .................................................................................................................................................................... 47
PM43/PM43c Full Touch & One Button (ICON) Overlays ............................................................................................................... 48
Exploded View - PM43 Electronics Section .................................................................................................................................... 49
Accessories Electronics - Interface and Radio Boards ..................................................................................................................... 49
Main Logic Board (MLB) Assembly .................................................................................................................................................. 50
Power Supply Electronics Assembly (Behind the MLB) ................................................................................................................... 52
D-Sub Wiring Cable ......................................................................................................................................................................... 54
Ribbon Take Up Gear Mechanism ................................................................................................................................................... 55
Front Panel I/O Cable (shown disconnected from the MLB) .......................................................................................................... 56
Kit, Service, Drive Pulley .................................................................................................................................................................. 57
Ribbon & Platen Motor w/Gears, Tensioner , and Drive Belts ....................................................................................................... 58
Internal Rewinder Mechanism ........................................................................................................................................................ 60
Rewinder Full Batch Take-UpAssembly ........................................................................................................................................... 66
Cutter Assembly .............................................................................................................................................................................. 67
Screws & Torque Settings ............................................................................................................................................................... 69
Print-On-Demand Label Printing System ........................................................................................................................................ 70
Testing ............................................................................................................................................................................................. 70

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 4 of 70

Section 1
Exploded
View
PM43
Media
Section

No. Description See Page

1 Assembly, Door, Media, PM43, SVC
2 Assembly, Cover, EE, PM43
3 Assembly, UI Full Touch / ICON Module, SVC
4 Platen Roller
5 Printhead
6 Print Unit
7 Front Media Door
8 Ribbon Wrinkle Adjustment Mechanism
9 Media Take Bobbin
10 Media Holder
11 Ribbon Supply Mechanism
12 Ribbon Take-up Mechanism
13 Printer Bottom and Feet (4)
14 Printer Spine or Main Deck
15 Printer Back Plate

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 5 of 70

Section 2
No. Description See Page
1 Graphic Overlay, Full Touch
Exploded 2 Display Window
3 LCD Display
View 4 Assembly, UI Full Touch Module, SVC
Front 5 Front USB Connector and Cable
6,7,8 Print Button Kit including light pipe
Panels 9 Touchless Configuration Module and Cable
Full Touch
& ICON

No. Description See Page

1 Graphic Overlay, One-Button ICON
2 Assembly, UI One- Button Module, SVC
3,5,6 Print Button Kit including light pipe
4 Front USB Connector and Cable
7 Touchless Configuration Module and Cable
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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 6 of 70

Section 3

Exploded
View
PM43
Electronics
Section

No. Description See Page

1 Accessory Radio Electronics Assembly
2 Power Supply Electronics Assembly (Behind Main Logic Board)
3 Main Logic Board (MLB) Assembly
4 Ribbon Take Up Reduction Gears
5 Front Panel I/O Cable (shown disconnected from MLB)
6 Drive Motor for Ribbon, Platen, + Gears and Belts
7 Kit, Service, Drive Pulley
8 Rewind Mechanism Electronics
9 Motor for Rewind Full Batch Mechanism
10 Rewind Drive Belt Mechanism
11 Full Batch Rewind Kit, Accessory (items #8, #9, #10 are part of this full batch
rewinder kit)
TABLE 1: PM43 - Standard Height Printer: Height 11.60” / Width 11.19” / Depth 19.04” / Weight About 34.8 lbs.
Available
Models

PM43 PM43c

PM43C - Compact Height Printer: Height 7.13” Std & 9.94 Mega top” / Width 9.94” / Depth 17.0” & 19.7”
Mega Top - Weight about 28 lbs.

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 7 of 70

Section 1 Exploded View - PM43 Media Section

OPERATION: Covers - Media Compartment
Both PM43 and PM43 offer several different media door options for different printing applications.

Tools Required
Description Part Number
Nut Driver 7mm
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 710-125S-001 Assembly Door, Media, PM43, Spare (complete assembly include front and back cover, 1
hinges, handle, and screws)
2 710-189S-001 Assembly Door, Media, PM43c, Spare (complete assembly include front and back cover, 1
hinges, handle, and screws)
3 710-191S-001 Assembly Door, Media, Short, PM43c, Spare (complete assembly include hinges and 1
screws)
4 710-192S-001 Assembly Door, Media, Dome, PM43c, Spare (complete assembly include hinges, 1
handle, screws, and clear dome cover)
5 643-165S-001 Media Window, Spare, PM43 1
6 643-166-001 Media Door Handle, PM43 1
7 203-970-001 Media Door Locking Bracket (accessory item that is available on standard price guide 1
with installation instructions)

Replacing Media Cover

1. Loosen the two screws shown below and pivot the quick release cover hinge 45 degrees so that the cover can be lifted away.
See Figure 1.

Figure 1

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 8 of 70

1 2

PM43 – Standard PM43c - Standard

3 4

PM43c – Short Door PM43c – Dome Door

Replacing Media Window

1. Remove the 5 nut clips that secure the media window and lift the media window away from the media door.

Media
Door 5
Lock

Figure 1 – Clips location & Media Door Locking Bracket Media Window

Media Door Locking Bracket

1. This locking bracket kit is available as an orderable item from standard price guide and it is a customer installable option.
See Figure 1.

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 9 of 70

Replacing Media Door Handle

1. Remove the two torx screws securing the handle and pull the handle away from the media door. See Figure 2.

Figure 2 – Location of torx screws Media Door Handle

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 10 of 70

OPERATION: Cover – Electronics Compartment

Tools Required
Description Part Number
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 710-128S-001 ASSY COVER, EE, PM43, Spare (complete assembly include screws and hinges) 1
710-148S-001 Assy Cover, EE, PM43c, Spare (complete assembly include screws and hinges) 1
2 1-994059-008 Screw, MRT 4x8 ZP, T20, (14 lbf.in/16 kgf.cm) 4

Electronic Cover Replacement

1. Remove the torx screws (2 on media side and 2 on electronic side) that secure the electronic cover. See Figure 1&2
2. Lift the electronic cover up and away from the printer spine (main deck).

Figure 1 Figure 2

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 11 of 70

OPERATION: Front Panel Assembly

This printer is available as a Full Touch or ICON front panel printer for both PM43 and PM43c.

Tools Required
Description Part Number
Torx Driver T20
Torx Driver T10

Parts Required
Item Part Number Description Qty
1 705-626S-001 Assy, UI Full Touch Module, Spare, PM43 (complete assembly include mounting screws) 1
2 705-630S-001 Assy, UI Full Touch Module, Spare, PM43c (complete assembly include mounting screws) 1
3 705-627S-001 Module,UI One Button, Assy, Spare, PM43 (complete assembly include mounting screws) 1
4 705-635S-001 Assy, UI, One-Button, Spare, PM43c(complete assembly include mounting screws) 1
Replacing the Front Panel assembly Full Touch and One Button ICON
1. Remove the Media and Electronics covers as shown on pages 7 through 9.
2. Remove the two M4 x 5 screws on the front panel media side, see Figure 1. For PM43c printer, the access door will
need to be removed first. See page 26 on how to remove the access door.
3. Remove the screw on the Electronics side top side, see Figure 2
4. Unplug P16 UI USB and P20 Touchless MLB Connectors, see Figure 3
5. Unplug the main front panel to MLB ribbon able connector, see Figure 4
6. Remove the Gnd Wire (3) and release two locking taps (1 & 2) Figure 5 and pull the front panel out
7. Replace with the new front panel by reversing the order of removal instructions

Figure 1 Figure 2

Figure 3 Figure 4

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 12 of 70

Figure 5

1 2

USB Ground Wire

PM43 PM43c

2
2

PM43 PM43c

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 13 of 70

OPERATION: Platen Roller

This printer has a customer replaceable platen roller and a spare platen roller carrier for both PM43 and PM43c. Both printer
models share the same platen roller assembly.
The spare platen roller carrier intended use is to contain a ready to use spare platen roller, which is not include in the printer,
for replacement with minimal down time.

Tools Required
Description Part Number
None Required

Parts Required
Item Part Number Description Qty
1 710-118S-001 Platen Roller Assembly, Spare (complete assembly include latch, clips, 1
bearings, and washers)
2 203-994-001 Linerless Roller, Accessory Kit, PM43 (kit include installation instruction) 1

Platen Roller Assembly Replacement

1. Raise or open the Printhead
2. Rotate the platen roller latch clockwise to detach the platen roller assembly from the printer and pull the platen roller away
from the printer. See Figure 1.
3. Insert the replacement platen roller into the printer and secure it by turning the latch counterclockwise.

Figure 1 Figure 2 – Platen Roller Carrier Platen Roller Assembly

Cleaning Platen Rollers

Recommended that the installed platen rollers be cleaned. To clean the platen roller, the following are needed:

• Silicone cleaning fluid

• Lint-free cleaning cloth
• Thermal printhead cleaning swab, wipe, or pen

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 14 of 70

OPERATION: Printhead
This printer has a customer replaceable printhead for both PM43 and PM43c.
The printer firmware can detect new printhead and retrieve the printhead information including part number and serial
number of the printhead.

Tools Required
Description Part Number
Isopropyl alcohol solution

Parts Required
Item Part Number Description Qty
1 710-129S-001 THP, 203 dpi 4”, Assy Spare PM43 1
710-179S-001 THP, 300 dpi 4”, Assy Spare PM43 1
710-180S-001 THP, 406 dpi 4”, Assy Spare PM43 1

Printhead Assembly Replacement

1. Turn the printhead lift lever counterclockwise to raise the printhead
2. Detach the magnetic pressure arm from the printhead bracket and disconnect the two cables from the printhead as you
remove it from the printer. See Figure 1.
3. Connect the two printhead cables to the new printhead
4. As you insert the new printhead bracket into the printer, make sure the metal arms on the printhead go around the
magnetic pressure arm. Attach the magnetic pressure arm to the printhead.

Printhead Cables
Magnetic Pressure Arm

Figure 1 Thermal Printhead

Cleaning Printhead
Recommended that the installed printhead be cleaned. To clean the printhead, the following are needed:

• Silicone cleaning fluid

• Lint-free cleaning cloth
• Thermal printhead cleaning swab, wipe, or pen

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 15 of 70

OPERATION: Print Unit Components

This section covers the replacement and installation of the print unit assembly that has several components. This section
addresses the bottom base print mechanism and the printhead adjustment assembly. The spare bottom base print mechanism
does not include the media guide assembly and sensor.

Tools Required
Description Part Number
Torx Driver T10
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 522-614S-001 Bottom, Base Print Mech, Spare, PM43 (include 1-994059-012) 1
2 710-106S-001 THP, Pressure Adj Assy, Spare, PM43 (complete assembly) 1
3 1-994059-012 Screw, MRT 4x12 ZP (14 lbf.in/16 kgf.cm) 4
4 808-002-000 Cable, Tie, White, Locking, 4inch 1

Bottom Base Print Mechanism Replacement

1. Turn the printhead lift lever counterclockwise to raise the printhead. See page 13 on the direction of printhead lift lever.
2. Remove the platen roller assembly. See page 12 on how to remove the platen roller assembly.
3. Remove the drive pulley to access the torx screw underneat. See page 58 on how to remove drive pulley.
4. Remove the 4 torx screws securing the bottom base print mechanism assembly

IMPORTANT!!: Make note of the guide posts and position of media guide assembly adjustment lever as you pull the print
mechanism away from the spine (main deck). See Figure 2.

5. Remove the tear bar and reverse the procedure for installation of new print mechanism assembly

Figure 1 – Location of torx securing the print mechanism assembly

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 16 of 70

Guide posts

Media Guide
Adjustment lever

Bottom Base Print Mechanism TPH Pressure Adjust

(Does not include tear bar and screws as shown)

Printhead Pressure Adjust Assembly Replacement

1. Turn the printhead lift lever counterclockwise to raise the printhead. See page 13 on the direction of printhead lift lever.
2. Remove the 5 torx screws securing the printhead pressure adjust assembly. See Figure 2 on location of torx screws.
3. Prior to removing the printhead pressure adjust assembly, it is IMPORTANT to note the position of the crank lever and guide
posts. See Figure 3, Figure 4, and Figure 5.
4. Reverse the procedure for installing the replacement printhead pressure adjust assembly.

x5

Figure 2 – Printhead Pressure Adjust Assembly

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 17 of 70

Crank Lever
Position

Figure 3 Figure 4

Figure 5

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 18 of 70

OPERATION: Printhead Lift Handle and Pressure Adjust Mechanism

This section cover the replacement of printhead lift handle and pressure adjust assembly. The printhead lift handle is used to
release the media (label) and ribbon for replacement. The pressure adjust assembly is part of the printhead adjust assembly to
adjust the printhead pressure against the platen roller for different media thickness.

The printhead pressure adjust assembly has to be removed first prior to removing the printhead lift handle and pressure adjust
assembly.

Tools Required
Description Part Number
Torx Driver T10

Parts Required
Item Part Number Description Qty
1 710-107S-001 THP, Pressure,Adj, Sub,Assy, Spare PM43 (include 800-619-010) 1
2 1-994059-012 Screw, MRT 4x12 ZP (14 lbf.in/16 kgf.cm) 2
3 800-619-010 Screw MRT 3X10 FBZ, Nylon Patch (-5 lbf.in/6 kgf.cm) 1

Printhead Lift Handle

1. Remove the printhead pressure assembly by following the procedure pages 14 through 16.
2. Remove the torx securing the printhead lift handle with a Torx driver T10 as shown on Figure 1 and remove the printhead
Lift handle away from the printhead pressure adjust assembly. It is important to make note on how the printhead lift handle
is attached to the pressure adjust assembly as shown on Figure 2.

Figure 1 – Printhead Lift Lever Figure 2

Pressure Adjust Assembly Replacement

1. Remove the printhead pressure assembly by following the procedure pages 14 through 16.
2. Remove the 2 torx screws securing the pressure adjust holder against pressure adjust assembly as shown on Figure 3 and lift
the pressure adjust holder away to remove the pressure adjust assembly for replacement. It is important to note the
fittings as shown on Figure 4.
3. Reverse the procedure for installing replacement of pressure adjust assembly.

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 19 of 70

Pressure Adjust
Holder

Figure 3 Figure 4

Pressure Adjust Assembly

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 20 of 70

OPERATION: Printhead Lift Sensor Assembly

Printhead lift sensor senses when the printhead lifted. This printhead lift sensor assembly is used on both PM43 and PM43c.

Tools Required
Description Part Number
Torx Driver T10
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 236-261S-130 ASSY, CABLE, HEADLIFT SENSOR, Spare, PM43 (include 1-994058-010) 1
2 1-994058-010 Screw MRT 3X10 FBZ (-5 lbf.in/6 kgf.cm) 2

Printhead Lift Sensor Assembly Replacement

1. Remove the 2 torx screws securing the headlift sensor assembly. See Figure 1.
2. Unplug the sensor cable assembly from the MLB and lift the headlift sensor away
3. Reverse the procedure to install replacement headlift sensor assembly

Figure 1

Headlift Sensor Assembly

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 21 of 70

OPERATION: Printhead Lift Assembly

This section cover the replacement of printhead lift mechanism assembly replacement. Replacing the assembly require
removing the print motor assembly first and possible driver gears to gain access to the torx screws securing the printhead lift
mechanism on the electronic side. The print unit components would also need to remove.

Tools Required
Description Part Number
Torx Driver T10
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 201-030-001 Lift, TPH Sub, Assy, Spare, PM43 (include 1-994058-010) 1
2 1-994058-010 Screw MRT 3X10 FBZ (5 lbf.in/6 kgf.cm) 2

Printhead Lift Mechanism Assembly Replacement

1. Remove the print mechanism stepper motor prior to removing the printhead lift mechanism assembly. See Motor
Replacement Section on how to remove the print mechanism stepper motor.
2. Remove the print unit components. See Print Unit Components Section.
3. Remove the torx screw securing the headlift sensor reflector. See Figure 1.
4. Remove the torx screw securing the headlift compression spring and slide the printhead lift mechanism assembly away from
the spine (main deck)

Figure 1 Figure 2

Printhead Lift Sub Assembly, PM43

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 22 of 70

OPERATION: Printhead Lift Arm

This section covers the instructions on replacing the printhead lift arm. The purpose the of the printhead lift arm is to adjust
the printhead pressure to compensate for different media width and thickness.
Accessing the printhead lift arm for replacement will require removal of the printhead pressure adjustment mechanism and
printhead lift mechanism assembly.

Tools Required
Description Part Number
Torx Driver T10

Parts Required
Item Part Number Description Qty
1 710-104S-001 Arm,HP Sub,Assy Spare PM43 1

Printhead Lift Arm Replacement

1. Remove the printhead pressure adjustment mechanism. See page 16 for instructions on how to remove the printhead
pressure adjustment mechanism.
2. Remove the printhead lift mechanism assembly. See page 21 for instructions on how to remove the printhead
lift mechanism assembly
3. Remove the spring tensioner and printhead lift actuator
4. Squeeze the push button together and carefully slide the magnetic arm assembly as shown in Figure 1. It is IMPORTANT to
watch the compression spring as you slide the arm assembly away from the
5. Reverse the instructions for re-installation.

Spring Tensioner

Lift Actuator
Compression 1
Spring
Figure 1 Arm Assembly, Magnetic, PM43

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 23 of 70

OPERATION: Media Guide Top Dancer Assembly and Dancer Assembly

This section cover the replacement of top media guide dancer assembly and the dancer assembly.

Tools Required
Description Part Number
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 710-119S-001 Guide,Media,Top Dancer, Assy Spare PM43 1
2 710-139S-001 Dancer, Assy, Spare PM43 1
3 705-628S-001 Sensor, LSS Upper Assy, Space PM43 1
4 1-994059-008 Screw, MRT 4x8 ZP, T20, (14 lbf.in/16 kgf.cm) 1

Media Guide Top Dancer Assembly Replacement

1. Remove the torx screw securing the top media guide dancer assembly from the electronic side. See Figure 1.
2. Disconnect the media sensor assembly from connector P20 on the main logic board (MLB) and slide the top media guide
dancer assembly away from the spine (main deck). It is IMPORTANT to note the spring position behind the spine (main deck)
guide post, guide posts, and guide pin. See Figure 2, 3, & 4.
3. For Item #3 LSS upper assembly, the assembly can be removed without having to perform Step #1. LSS upper assembly can
be removed by detaching the assembly away from the guide pin. See Figure 7.
4. For Item #2 Dancer Assembly, the assembly can be removed by removing the c-clip and slide the assembly outward. See
Figure 8.

Spring
4

Figure 1 Figure 2 Figure 3

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 24 of 70

1 Spring

Guide Pin

Guide Posts 2

Figure 4 – Guide, Media, Top, Dancer, Spare, Assembly Figure 5 - Dancer Assembly

Figure 6 - Sensor, LSS Upper Assembly, Spare

Figure 7 – Removing LSS Upper Assembly Figure 8 – Removing Dancer Assembly

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 25 of 70

OPERATION: Media Guide, Bottom Assy

The bottom media assembly include the media guide sensor for printing on different media (label) width. This assembly is used
on both the PM43 and PM43c.
The assembly is secured by the bottom base print mechanism and it secure by the guide posts (2 each side of the bottom
guide) against the spine (main deck) and the inside of the bottom base print mechanism.

Tools Required
Description Part Number
None required

Parts Required
Item Part Number Description Qty
1 710-120S-001 Guide, Media, Bottom Dancer, Assy Spare PM43 (complete assembly include media guide 1
sensor, belt, adjust lever, etc.)
2 808-002-000 Cable, Tie, White, Locking, 4inch 1

Bottom Dancer Media Guide Assembly Replacement

1. Remove bottom base print mechanism assembly. See Page 14&15 on how to remove the bottom base print mechanism
assembly.
2. Disconnect the media guide sensor cable P34 from main logic board (MLB) and cut the tie cable securing the cable.
3. Detach the bottom media guide assembly from the spine (main deck). It is IMPORTANT to make note of the guide posts.
See Figure 1 & Figure 2.
4. Reverse the procedure for installing replacement bottom media guide assembly.

Figure 1 Figure2

Guide, Media, Bottom Dancer Assembly Spare

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 26 of 70

OPERATION: Front Media Door Replacement

The access door is for PM43 and PM43c. The door is a customer replaceable part.

Tools Required
Description Part Number
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 815-076S-001 Door, Access, PM43 1
2 TBD Door, Access, PM43c 1
3 1-994059-012 Screw, MRT 4x12 ZP (14 lbf.in/16 kgf.cm) 1

Access Door Replacement PM43

1. Open the access door and carefully lift the one corner of the access door with a plastic tool. See Figure 1.
2. Replacement access door should snap onto the guide

Area

Figure 1

Door, Access, PM43

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 27 of 70

Access Door Replacement PM43c

1. Remove the torx screw securing the access door. See Figure 2.
2. Slide the access door right and lift the door away from the bottom deck.

Figure 2

Access Door, PM43c

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 28 of 70

OPERATION: Ribbon Wrinkle Adjustment Mechanism

This section covers the instruction on how to adjust the ribbon wrinkle for printers with thermal transfer ribbon option. Direct
thermal printer will not have the ribbon wrinkle adjustment mechanism.

Tools Required
Description Part Number
Torx Driver T10
Torx Driver T20

Parts Required
Item Part Number Description Qty
None

Ribbon Wrinkle Adjustment

1. See Steps for instructions on how to adjust the ribbon wrinkle.

Step 1 Step 2

Step 3 Step 4

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OPERATION: Ribbon Adjust Sub Assembly

The purpose of the ribbon adjust assembly is to adjust the ribbon alignment for ribbon wrinkle for printers with thermal
transfer ribbon option. Direct thermal printer will not have the ribbon adjust sub-assembly.

Tools Required
Description Part Number
Torx Driver T10
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 710-099S-001 Ribbon Adjust Sub Assembly, Spare (include screws, washer, rod, and plate) 1

LSS Upper Sensor Assembly Replacement

1. Remove the torx screw securing the ribbon adjust assembly. See Figure 1.
2. Slide the ribbon adjust assembly toward the electronics and gears side to remove from the spine (main deck).
3. Reverse the instructions for re-installation.

Torx screw

Figure 1 Ribbon Adjust Sub Assembly, Spare

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 30 of 70

OPERATION: Tear Bar

This is a customer replaceable part; no tooling is required for this operation.

Tools Required
Description Part Number
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 650-799S-001 Tear Bar, Spare, PM43 (include torx screws 1-994059-008) 1
2 1-994059-008 Screw, MRT 4x8 ZP, T20, (14 lbf.in/16 kgf.cm) 3

Tear Bar Replacement

1. Remove the 3 torx screws securing the tear bar against the bottom print mechanism assembly and remove the tear bar. See
Figure 1.
2. Reverse the procedure for re-installation.

Figure 1

Tear Bar, Spare

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 31 of 70

OPERATION: Media Hanger and Edge Guides

The media hanger and edge guides (large and small edge guide) come as a complet service kit.

Tools Required
Description Part Number
Phillips screw driver, 16mm bit

Parts Required
Item Part Number Description Qty
1 201-043-001 Hanger, Media, Service Kit, PM43 (kit include media hanger, small edge guide, 1
large edge guide, and screw)
2 203-977-001 Rotation Hanger, Accessory Kit, PM43 1

Media Hanger Replacement

1. Remove the Phillips screw securing the media hanger against the spine (main deck). See Figure 1.
2. Detach the media hanger away from the spine (main deck)
3. Reverse the procedure for re-installation.

Edge Guides Replacement

1. Lower the edge guide and insert a flat head screw to release the edge guide from the media hanger. See Figure 1.
2. To install the new edge guide, expand the edge guide and snap the edge guide onto the media hanger.

Production unit will use

Phillips M6x16mm screw

Figure 1

Media Hanger Edge Guide, Small, PM43 Edge Guide, Large, PM43

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OPERATION: Ribbon Supply Assembly

The ribbon supply assembly has reflective material that senses ribbon low. Ribbon low sensor assembly located behind the
ribbon supply assembly senses the reflective material and signal to the main logic board.

Tools Required
Description Part Number
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 710-096S-001 Module, Ribbon Supply Sub, Assembly, Spare, PM43 1
2 236-263-001 Sensor, Ribbon Low Cable, Assembly, PM43 1

Ribbon Supply Assembly Replacement

1. Remove the torx screw securing the ribbon supply assembly module to the ribbon supply rod. See Figure 1 on location of
the torx screw.
2. Pull the ribbon supply assembly module away from the ribbon supply rod. It is IMPORTANT to note the position of the
ribbon supply assembly guide pin attached to the spine (main deck).
3. Reverse the instructions for re-installation.

Figure 1

Ribbon Supply Assembly Module

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Ribbon Low Cable Sensor Assembly Replacement

1. Remove the electronic cover
2. Disconnect the ribbon low cable P25 on the main logic board (MLB)
3. Detach the ribbon sensor holder and pull the ribbon low sensor assembly through the spine (main deck).

Figure 2 Ribbon Low Cable Sensor Assembly

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OPERATION: Ribbon Take-up Mechanism

This section covers the replacement of ribbon take-up mechanism. Make note of the guide pins when removing the
mechanism on the electronics side.

Tools Required
Description Part Number
Torx Driver T20
Allen Driver, 1.5mm-2.0mm

Parts Required
Item Part Number Description Qty
1 710-094S-001 Module, Ribbon Rewind Sub, Assy Spare PM43 1
2 650-829-001 Spring,Plate1 inch Core PM43 1
3 1-994059-008 Screw, MRT 4x8 ZP, T20, (14 lbf.in/16 kgf.cm) 5

Ribbon Take-up Replacement

1. Remove the torx screws securing the ribbon rewind assembly module. See Figure 1.
2. Remove the Allen set screw to remove the ribbon hub. See Figure 2.
3. Remove the C-clips and slide the ribbon rewind assembly toward the electronics side.
4. Reverse the procedure for re-installation.

3 Location of
Allen set
screw

Figure 1 Figure 2

2
1

Ribbon Rewind Assembly Module, PM43 Spring Plate, 1 Inch Core, PM43

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OPERATION: PM43 and PM43c Base Assembly & Rubber Feet

This is NOT a customer replaceable part.

Tools Required
Description Part Number
Torx Driver T10
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 710-126S-001 Base Assembly, Spare, PM43 1
2 710-146S-001 Base Assembly, Spare, PM43C 1
3 813-172-001 Foot, Rubber PM43 4
4 1-994059-008 Screw, MRT 4x8 ZP, T20, (14 lbf.in/16 kgf.cm) 6

Base Assembly Replacement

1. Remove the torx screws (x4 on electronics side and x2 on media side) securing the base assembly to the spine (main deck).
See Figure 1 & Figure 2.
2. Lift the base assembly away from the spine.
3. Reverse the procedure for re-installation.

4 4

4 4

Figure 1 Figure 2

1 2

Base Assembly, Spare, PM43 Base Assembly, PM43c

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Rubber Foot Replacement

1. Release the push pin and remove the rubber foot. See Figure 3
2. Reverse the procedure for re-installation.

Figure 3 Rubber Foot. PM43

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OPERATION: Spine
This is a NOT customer replaceable part. The spine (main deck) will rarely need replacement unless major damage require
doing so. Replacement of the spine require removing all install components, which is a complete disassembly of the printers.

Tools Required
Description Part Number
Torx Driver T10
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 710-124S-001 Spine Assembly, Spare, PM43 1
2 710-147S-001 Spine Assembly, Spare, PM43C 1

Spine Replacement
1. Remove all attached mechanical and electrical parts.
2. Remove the torx screws securing the spine against the base assembly.

1 2

Spine Assembly, PM43 Spine Assembly, PM43c

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OPERATION: Back Plate

This is a NOT customer replaceable part.

Tools Required
Description Part Number
Torx Driver T10
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 710-127S-001 Assembly, Cover, IO, Spare, PM43 1
710-149S-001 Assembly, Cover, IO, Spare, PM43c 1
2 710-103S-001 Assembly, Plate, Back, Spare, PM43 1
710-150S-001 Assembly, Plate, Back, Spare, PM43c 1

Back Plate Replacement

1. Procedure - TBA
2. Procedure - TBA

I/O Cover Replacement

1. Procedure - TBA
2. Procedure - TBA

2
1

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Section 2 Exploded View - Front Panels, Full Touch & ICON – Components
OPERATION: PM43 Service (Print) Button (Full Touch and ICON)
This section covers the replacement of the print button for both full-touch and ICON version of printers. To replace the button,
the full-touch/ICON front panel need to be removed first.

Tools Required
Description Part Number
Torx Driver T10

Parts Required
Item Part Number Description Qty
1 201-023-001 Kit, Service Button, PM43 1
2 201-024-001 Kit, Service, Button, PM43c 1
3 234-078S-0200 PCB Assembly, Feed Button, PM43 1
4 800-593-006 Screw, Plastic, M3x6, PH, Torx, T10 (3 lbf.in/3.5kgf.cm) 2
5 800-593-012 Screw, Plastite, M3x12, PH, Torx,T10 (3 lbf.in/3.5kgf.cm) 2
Button Replacement
1. Remove the front panel to access the print button for replacement. See page 11 on how to remove the front panel.
2. Remove the torx screws securing the print button PCBA to the front panel and remove the button. See Figure 1.
3. Reverse the procedure for re-installation.
Coup

5
3
Figure 1

2
1

Print Button, PM43 Print Button, PM43c

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OPERATION: USB Cable Assembly

This section covers the replacement of front panel USB assembly. The front panel USB option is only available for PM43.
PM43c does not have this option.
To replace the USB connector, the full-touch/ICON front panel need to be removed first for PM43.

Tools Required
Description Part Number
Torx Driver T10

Parts Required
Item Part Number Description Qty
1 234-068S-002 Front USB Receptacle, Cable Assembly 1
2 800-593-006 Screw, Plastite, M3x6, PH, Torx, T10 (3 lbf.in/3.5kgf.cm) 2

Front Panel USB Cable Assembly Replacement

1. Remove the front panel to access the USB cable assembly for replacement. See page 11 on how to remove the front panel.
2. Remove the torx screws securing the USB PCBA to the front panel and remove the front panel USB connector. See Figure 1.
3. Disconnect the USB cable from connector P26 on the main logic board (MLB).
4. Reverse the procedure for re-installation.

Figure 1 Front Panel USB Cable Assembly

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OPERATION: Touchless Configuration Unit Assembly with Battery

This section covers the replacement instructions for touchless configuration unit assembly with battery. The purpose of the
touchless configuration option is to allow customer to pre-configure the printer without taken the printer out of the box. The
touchless configuration unit contain a battery powered RFID chip that store the configuration information.
To configure the touchless configuration, an RFID reader is required. For example, an IF2 with standard RFID antenna or an
IP30 connecting to handheld computer.
When replacing the touchless configuration unit, the unit has to be re-programmed with an RFID reader to match the printer
configuration information.

Tools Required
Description Part Number
Torx Driver T8

Parts Required
Item Part Number Description Qty
1 705-625S-001 Touchless, Config Unit, Assembly, Spare, PM43 (include screws and lithium 1
battery 317-235-001)
2 800-593-006 Screw, Plastite, M3x6, PH, Torx, T10 (3 lbf.in/3.5kgf.cm) 2

Touchless Assembly Replacement

1. Remove the front panel to access the touchless configuration unit for replacement. See page 11 on how to remove the
front panel.
2. Remove the torx screws securing the touchless configuration unit PCBA to the front panel. See Figure 1.
3. Disconnect the touchless configuration unit cable from connector P20 on the main logic board (MLB) and ground cable to
remove the touchless configuration unit assembly
4. Reverse the procedure for re-installation.

1
2

Figure 1 Touchless Config Unit Assembly

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OPERATION: User Interface PCB Assembly

This section covers the replacement of user interface PCB assembly. The user interface PCB assembly for full touch
panel is shared between PM43 and PM43c. The user interface PCB assembly for one-button option is not shared
between the two models.

Tools Required
Description Part Number
Torx Driver T10

Parts Required
Item Part Number Description Qty
1 234-040S-0500 PCB Assembly, User Interface, Full Touch, PM43&PM43c 1
234-049S-0500 PCB Assembly, User Interface, One-Button, PM43 1
234-173S-0100 PCB Assembly, User Interace, One-Button, PM43c 1
3 800-593-006 Screw, Plastite, M3x6, PH, Torx, T10 (3 lbf.in/3.5kgf.cm) 3
Feed Button PCB Assembly Replacement
1. Remove the front panel to access the LCD display for replacement. See page 11 on how to remove the front panel.
2. Remove the overlay. See page 45 on how to remove the overlay.
3. Lift the connector latching mechanism J1 & J2 on the user interface PCB assembly to release LCD and LCD backlight ribbon
cable. Important to note the direction of the lift. See Figure 2 for reference.
4. Disconnect the keypad, feed button PCB assembly, and touch panel cables.
5. Remove the 3 torx screws securing the user interface PCB assembly. See Figure 1 on torx screws location.
6. Reverse the procedure for re-installation.

Figure 1

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Lift the connector latch mechanism

to release the LCD and LCD
backlight ribbon cables

Figure 2

2
1

User Interace PCB Assembly, One-Button User Interace PCB Assembly, Full-Touch

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OPERATION: PM43 / PM43c LCD Touch Panel and Display Assembly

This section covers the replacement of LCD display assembly and LCD touch panel.

Tools Required
Description Part Number
Torx Driver T10
Tweezer

Parts Required
Item Part Number Description Qty
1 346-314S-001 LCD Display Assembly, PM43 / PM43c 1
2 346-315S-001 LCD Touch Panel, PM43 / PM43c 1
3 643-171S-001 User Interface PCB Support Bracket, PM43 1
4 643-200S-001 User Interface PCB Support Bracket, PM43c 1
5 800-593-006 Screw, Plastite, M3x6, PH, Torx, T10 (3 lbf.in/3.5kgf.cm, 2.6 lbf.in/3 kgf.cm) 5

LCD Display Assembly Replacement

1. Remove the front panel to access the LCD display for replacement. See page 11 on how to remove the front panel.
2. Remove user interface PCB assembly. See page 43 on how to remove the user interface PCB assembly.
3. Remove the overlay. See page 48 on how to remove the overlay.
4. Remove the torx screwing the touch panel under the overlay. See Figure 2.
5. Remove the 5 torx screws securing the user interface PCB support bracket. See Figure 1 on torx locations for PM43. PM43c
has 3 torx screws securing the user interace PCB support bracket.
6. Reverse the procedure for re-installation.

3.0 lbf.in/3.5 kgf.cm 5

Figure 1 – PM43 Full Touch Front Panel

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LCD Touch Panel Replacement

1. Remove the front panel to access the LCD display for replacement. See page 11 on how to remove the front panel.
2. Remove user interface PCB assembly. See page 43 on how to remove the user interface PCB assembly.
3. Remove the overlay. See page 48 on how to remove the overlay.
4. Remove the torx screwing the touch panel under the overlay. See Figure 2.
5. Remove the 5 torx screws securing the user interface PCB support bracket. See Figure 1 on torx locations for PM43. PM43c
has 3 torx screws securing the user interace PCB support bracket.
5. Reverse the procedure for re-installation. It is important to note the touch panel ribbon cable routing. See Figure 3 &
Figure4 comparing the correct and incorrect cable routing.

5 2.6 lbf.in/3 kgf.cm

Figure 2

3 4

UI PCB Support Bracket, PM43 UI PCB Support Bracket, PM43c

1
2

LCD Display Assembly LCD Touch Panel

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Figure 3 – Incorrect Touch Panel Cable Routing Figure 3 – Correct Touch Panel Cable Routing

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OPERATION: PM43/PM43c Speaker

Different speaker assembly for PM43 and PM43c.

Tools Required
Description Part Number
Torx Driver T10

Parts Required
Item Part Number Description Qty
1 201-026-001 Kit, Speaker, Spare, PM43 (include torx screws 1-994066-08 x2) 1
2 201-027-001 Kit, Speaker, Spare, PM43C (include torx screws 1-994066-08 x2) 1
3 1-994066-08 Screw MRT M2X8 ZP 2

Speaker Replacement
1. Remove the front panel to access the speaker assembly. See page 11 on how to remove the front panel.
2. Remove the torx screws securing the speaker assembly. See Figure 1 & Figure 2.
3. Disconnect the speaker cable from the main logic board (MLB) and remove the speaker assembly.
4. Reverse the procedure for re-installation.

Figure 1 – PM43 Figure 2 – PM43c

2
1

Speaker Assembly, Spare, PM43 Speaker Assembly, Spare, PM43c

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OPERATION: PM43/PM43c Full Touch & One Button (ICON) Overlays

This is a customer replaceable part, no tooling is required for this operation.

Tools Required
Description Part Number

Parts Required
Item Part Number Description Qty
1 355-554-001 GRAPHIC, OVERLAY,FULL TOUCH, PM43 1
2 355-579-001 GRAPHIC, OVERLAY, FULL TOUCH, PM43C 1
3 355-578-001 GRAPHIC, OVERLAY, ONE-BUTTON, PM43 1
4 355-752-001 Overlay, 1-Button, PM43c 1

Overlay Replacement
1. To replace the overlay, carefully lift one corner of the overlay. See Figure 1. It is important to notice not to lift the mylar
material with the overlay. See Figure 2.
2. To install new overlay, peel of adhesive backing.
3. Carefully align the new overlay and press down firmly.

Mylar
Carefully lift one
of these corners

Figure 1 Figure 2

1
3
2 4

PM43 – Full Touch PM43c – Full Touch PM43 – One-Button PM43c – One-Button

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Section 3 Exploded View - PM43 Electronics Section

OPERATION: Accessories Electronics - Interface and Radio Boards
These are primarily plug in assemblies as seen in the exploded view on page 6. The P/Ns are available in the Intermec Price
Guide as accessory kit that include installation instructions. This section does not contain installation and replacement
instructions at this time. The instructions will be addressed at the next revision of this service work instructions.

Tools Required
Description Part Number
Torx Driver T10
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 270-177-005 RFID Kit, PM43, Europe 1
270-177-014 RFID Kit, PM43, FCC, North America 1
270-177-037 RFID Kit, PM43, Israel 1
270-188-001 Kit, Parallel Port 1
270-190-001 Kit, Dual USB Host Ports 1
270-191-001 Kit, Dual with RS232 & RS232 1
270-192-001 Kit, UART & IND with RS232 1
201-025-001 RFID, Default Assembly, PM43, Spare (default country code. Require programming 1
of country code for the supported country)
2 270-189-001 Kit, Wireless LAN & Bluetooth 1

Accessories Installation and Replacement

1. All accessories are available in the price guide include installation instructions. See Price Guide under Accessories for both
PM43 and PM43c printer models. Go to http://www.intermec.com/partner-products/prtrpm43a/selling-points.aspx under
Manuals to download the installation instructions for all accessories.

Figure 1 – Installed Accessory Location #1 Figure 2 – Installed Wi-Fi Accessory Location #2

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OPERATION: Main Logic Board (MLB) Assembly

Remove all installed interface option (RFID, Wi-Fi/Bluetooth, USB interface, parallel interface, DUART interface, etc.) board
prior to removing the MLB. See Figure 3 as a reference with all the options and connections.

Tools Required
Description Part Number
Torx Driver T20
Nut Driver 5mm or 3/16

Parts Required
Item Part Number Description Qty
1 234-032S-001 PCB ASSY,MLB, Spare (include 5 Torx screws PN 1-994059-008. Does not 1
include grounding plate and hex standoffs)
2 318-051-001 Real Time Clock (RTC) Battery, Accessory 1
3 1-994059-008 Screw, MRT 4x8 ZP, T20, (14 lbf.in/16 kgf.cm) 5

Main Logic Board (MLB) Replacement

1. Remove 5 Torx screws that secure the MLB. For printer with installed option, there will be 4 Torx screws and a
standoff. See Figure 1 for reference.
2. Remove standoff for printer with installed options

3 3
2
Optional Real-Time Clock
(RTC) Battery

1
1
3

1
Standoff with
installed option

3
3

Figure 1 – Main Logic Board Spare MLB

3. Disconnect all attached cablings and carefully remove MLB away from the power supply back plate. See Figure 3.
4. Remove the grounding plate and hex standoffs from the defective MLB and install onto replacement MLB. See Figure 2.
(Note: This procedure is necessary for initial built of spare MLB that did not include grounding plate and standoff)

Figure 2 MLB Grounding Plate & Hex Standoff

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5. Reverse the procedure when re-installing MLB.

RTC Ribbon
Sensor
Cable
Speaker Cable

Wi-Fi/Bluetooth
Option PSU Cable

Front Panel
PSU Cable Cable
Option Interface
Connector
Stepper Motor Printhead Cable
Cable
Front Panel USB Cable

Paper Low
Sensor Cable

Gap Sensor Rewinder

Cable Option Cable
Dual USB
Not used Option
Black Mark
Sensor Cable

Label Taken
Sensor Cable Touchless Head Lift
Option Cable Sensor Cable
Figure 3 – Main Logic Board Connections

Figure 4 – Reference Printer System Architecture

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OPERATION: Power Supply Electronics Assembly (Behind the MLB)

The power supply unit attaches to the spine (main deck) assembly with five torx screws and 2 torx screws on the exterior
backplane. When removing the power supply unit, note the cable routing and tie wrapping to ensure proper re-installation.

Tools Required
Description Part Number
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 234-050S-001 Power Supply Unit (PSU), Assy, PM43, Spare (include PSU, PSU Bracket, and 1
Torx screws)
2 1-994059-008 Screw, MRT 4x8 ZP, T20, (14 lbf.in/16 kgf.cm) 7
3 236-254-001 Power Cable, Main Logic Board (MLB) – Power Supply Unit (PSU) 1
4 808-002-000 Cable, Tie, White, Locking, 4inch 1

Power Supply Unit Replacement

1. Remove the 5 torx screws with Torx driver T20 that secure the PSU onto the spine (main deck) assembly. See Figure 1
for location of the torx screws.
2. Remove the 2 torx screws with Torx driver T20 that secure the PSU on the back plate. See Figure 2.
3. Cutoff the tie wrap that secure the power supply unit and ribbon sensor cable. See Figure 3.
4. Reverse the procedure for re-installation.

2 2

Figure 1 Figure 2

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Figure 3

Power Supply Unit Spare Power Cable, MLB-PSU

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OPERATION: D-Sub Wiring Cable

This 15Pins D-Sub wiring assembly is reserved adding on full batch take-up option.

Tools Required
Description Part Number
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 1-206165-01 D-Sub, 15Pin Wiring Assy PM43 (does not include the screws as shown) 1
2 1-994059-008 Screw, MRT 4x8 ZP, T20, (14 lbf.in/16 kgf.cm) 1

1. Remove the 2 torx screws that secure the d-sub wiring assembly and pull the assembly through the spine (main deck). See
Figure 1 on screw location.

1
2

Figure 1 D-Sub Wiring Assembly

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OPERATION: Ribbon Take Up Gear Mechanism

The ribbon take-up gears are available as a set.

Tools Required
Description Part Number
Torx Driver T10
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 201-029-001 Gear, Ribbon Reduction, Spare Kit, PM43 1

Ribbon Reduction Gear kit Replacement Instructions

1. Complete the drive belt replacement instructions in this procedure
2. Using common a T20 Torx Bit driver and E-clip removal tool release and replace the gears as shown in the following
Figures 1 and 2.
3. For installation reverse these steps

Figure 1 Figure 2

Gear, Ribbon Reduction, Spare Kit

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 56 of 70

OPERATION: Front Panel I/O Cable (shown disconnected from the MLB)
The front panel I/O cable connects between the front panel assembly and the main logic board.

Tools Required
Description Part Number

Parts Required
Item Part Number Description Qty
1 236-257-001 Cable, MLB CONSOLE PM43 1

Front Panel I/O Cable Replacement

1. Remove the media and electronic cover.
2. Remove the front panel to access the speaker assembly. See page 11 on how to remove the front panel.
3. Disconnect the console cable from P1 on front panel PCBA assembly and P13 on the main logic board (MLB).
4. For installation reverse these steps

MLB Console Cable, PM43

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 57 of 70

OPERATION: Kit, Service, Drive Pulley

This is NOT a customer replaceable part.

Tools Required
Description Part Number
Allen Driver, 1.5mm-2.0mm

Parts Required
Item Part Number Description Qty
1 201-028-001 Pulley, Drive Kit Spare PM43 ( Include Platen Roller Coupling P/N655-318-001, and 1
set screw P/N 1-994109-00)

Drive Pulley Replacement Instructions

1. Remove the service pulley cover (guard) as shown in Figure 1 and slip the timing belt off with an upward motion
2. Using a 6/64 Allen Driver release the set screw and pull up as shown in Figure 2
3. For installation reverse these steps

Figure 1 Figure 2

Pulley, Drive Kit, Spare, PM43

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 58 of 70

OPERATION: Ribbon & Platen Motor w/Gears, Tensioner , and Drive Belts
This is NOT a customer replaceable part.

Tools Required
Description Part Number
Torx Driver T10
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 710-112-001 Motor, Print Mech, Assy PM43 (does not include torx screws as shown) 1
2 710-115S-001 Roller, Tension, Assy, Spare PM43 (does not include screws as shown) 1
3 655-321-001 Belt,PulleyTimingT63 W7mmL189mm,S3M PM43 1
4 655-323-001 Belt,PulleyTimingT54 W7mmL162mmS3M PM43 1
5 1-994059-008 Screw, MRT 4x8 ZP, T20, (14 lbf.in/16 kgf.cm) 1
6 1-9904059-005 Screw, MRT 3x5 ZP 1

5
1 3
4

2
5

Print Mechanism Motor Tension Roller Assembly Belt, Pulley, Timing

Motor Replacement
1. For easy access to the motor hardware, first remove the front panel per the instructions in the Front Panel
replacement section, page 10
2. Unplug the motor cable connector from the MLB marked P33 Step 1, see Figure 1
3. Loosen the belt tension screw No. 1, and remove all four motor corner mounting screws , see figure 2
4. Remove the service pulley cover (guard) as shown in Figure 3 and slip the timing belt off with an upward motion, see
Figure 4
5. Tilt and pull the motor up as noted by the red arrows in Figure 5
6. To replace the motor reverse these steps, keeping in mind the drive belts are positioned as shown in Figure 5.

Figure 1 Figure 2 Figure 3

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 59 of 70

Figure 4 Figure 5

Drive Belt Replacement

1. Remove the motor as per the motor replacement instructions
2. Remove the center ribbon drive gear by removing the mounting screw, see Figure 6
3. Slip the center gear off and lift each drive belt off, see Figures 7 and 8, note relative P/Ns of drive belts as shown in
Figure 8 , lower belt P/N 655-321-001(189mm) and upper ribbon take up drive is P/N 655-323-001 (162mm)
4. For installation reverse these steps

Figure 6 Figure 7 Figure 8

Roller Tension Replacement

1. Remove the motor as per the motor replacement instructions.
2. Remove the 3 mounting screws as shown in red circles. See Figure7.
3. Lift and remove the Roller Tension assembly as shown in Figure 9, loosen the belt tension screw for this step.

Figure 9

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 60 of 70

OPERATION: Internal Rewinder Mechanism

The internal rewinder is a factory configurable option. Printers built without the internal rewinder option can be retrofitted to
include the internal rewinder by Intermec Service Depots or third party service depots that are authorized by Intermec.

Tools Required
Description Part Number
Torx Driver T10
Torx Driver T20
Allen Driver, 1.5mm-2.0mm

Parts Required
Item Part Number Description Qty
1 710-090S-001 Internal Media Rewinder, Sub-Assy, Spare Kit, PM43 (include stepper motor, 1
rewinder assembly, belt, stepper rewinder PCBA)
2 715-616S-001 Label Taken Sensor (LTS), Spare Kit, PM43 1
3 710-168-001 Motor,Stepper Rewind PM43 (does not include mount plate as shown) 1
4 234-053S-0300 PCB Assy, Rewind Motor Driver 1
5 825-218-001 Belt,Rewinder PM43 1
6 710-089S-001 Media Rewinder, Sub-Assembly, PMB43 1
7 657-030-001 Shaft, Media Divert, Spare, PM43 1
8 653-679-001 Plate, Batch, PM43 1
9 1-994059-008 Screw, MRT 4x8 ZP, T20 (14 lbf.in/16 kgf.cm) – Mounting Torx screws 8
10 1-994058-004 Screw, MRT 3X4 ZP, T10 (5 lbf.in/6 kgf.cm) – Included with LTS spare kit 2

Label Taken Sensor (LTS) Replacement

1. Remove the media and electronic cover.
2. Remove the front panel. See page 11 on how to remove the front panel.
3. Disconnect sensor cable from P29 connector on the main logic board.
4. Remove Torx screwing the sensor mounting plate and remove the sensor assembly. See Figure 1.
5. Reverse the procedure to install replacement sensor assembly

10
6

2
6

Figure 1 Label Taken Sensor (LTS) Spare

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 61 of 70

Internal Rewinder Mechanism

5 4
6

6 3
6

Media Rewinder Assembly Rewinder Belt Stepper Motor Assembly Rewinder Motor Driver PCBA

Stepper Motor Assembly Replacement

1. Remove the media and electronic cover.
2. Disconnect stepper motor cable from motor driver PCBA.
3. Remove the 4 Torx screws securing the stepper motor assembly and motor driver PCBA. See Figure 2.
(Note: Make of the belt tension)
4. Unhook the rewinder belt from the stepper motor assembly and note the position of belt.
5. Remove the 4 Torx screws securing the stepper motor to the mounting plate.
(Note: stepper motor mounting plate is not included in a spare motor. It does come with 710-090S-001 Spare Kit.)
6. Reverse the procedure to install replacement stepper motor assembly.
7. Pull the stepper motor assembly away while tighting the Torx screws to tighten rewinder belt tension. See Figure 3.

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 62 of 70

Rewinder Stepper
Motor Cable

Guide Pin

X4

Figure 2 – Stepper Motor Assembly Removal

Guide Pin

Figure 3 – Stepper Motor Assembly Re-Installation

Rewinder Belt Replacement

1. Remove the media and electronic cover.
2. Disconnect stepper motor cable from motor driver PCBA.
3. Remove the 4 Torx screws securing the stepper motor assembly and motor driver PCBA. See Figure 2.
(Note: Make of the belt tension)
4. Unhook the rewinder belt from the stepper motor assembly and note the position of belt.
5. Reverse the procedure to install replacement rewinder belt.

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 63 of 70

Media Rewinder Assembly Replacement

1. Remove the media and electronic cover.
2. Remove the Allen set screw on the media rewinder and slide the half away. See Figure 4.
4. Remove the 2 Torx screws securing the assembly. See Figure 5.
5. Carefully lift the media rewinder assembly and unhook belt.

Allen set screw

9 9
location

Figure 4 – Allen set screw location on media rewinder assembly Figure 5

Rewinder Motor Driver PCBA Replacement

1. Remove the media and electronic cover.
2. Disconnect stepper motor cable from motor driver PCBA.
3. Disconnect the rewinder motor PCBA cable from P6 on the main logic board.
4. Remove the 4 Torx screws securing the stepper motor assembly and motor driver PCBA. See Figure 2.
(Note: Make of the belt tension)
5. Unhook the rewinder belt from the stepper motor assembly and note the position of belt.
6. Lift the rewinder PCBA from the spine and make note of the guide pin for re-installation. See Figure 6.
(Note: rewinder PCBA mounting plate is not included rewinder motor driver PCBA. It does come with 710-090S-001 Spare
Kit.)
6. Reverse the procedure to install replacement stepper motor assembly.
7. Pull the stepper motor assembly away while tighting the Torx screws to tighten rewinder belt tension. See Figure 3.

Figure 6

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 64 of 70

Media Shaft Divert Installation

1. Open media cover
2. Hand screw media shaft divert to the spine (main deck).

Media Shaft Divert

Installation
Location

7
6

Figure 6 – Location of media shaft divert Media Shaft Divert

Batch Plate Installation

1. Remove front media door. See page 26 on how to remove the front media door.
2. Remove tear bar and re-use the 3 Torx screws for batch plate installation
3. Install batch plate. See Figure 5.

9 9 9

Figure 7 – Batch Plate Installation

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 65 of 70

Internal Rewinder Assembly Service Kit

The intend of the internal rewinder service kit and label taken spare are for retrofitting a PM43/PM43c without the internal
rewinder option installed from the factory by an authorized Intermec service partners or Intermec service depot.

Figure 7 –Service Kit 710-090S-001 Kit include this type of gear

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 66 of 70

OPERATION: Rewinder Full Batch Take-Up Assembly

The media batch take up spool assembly is part of rewinder full batch take-up kit. The kit is available as an accessory that
include installation instructions. This section does not contain instructions on how to replace the rewinder full batch take-up
kit. The installation and replacement instructions will be covered on next revision of this service work instructions.

Tools Required
Description Part Number
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 203-974-001 Peel-Off, Kit 1
2 203-976-001 Rewinder Full Batch Take-Up Accessory Kit 1
3 203-972-001 Core, 3 Inch, Accessory Kit, PM43 1
4 234-053S-0300 PCB, Rewinder Motor Driver, Spare, PM43 1
5 236-259-001 Cable, Assembly, MLB, Full Rewinder 1
6 236-284-001 Cable, Assembly, MLB, Rewinder 1
7 710-089S-001 Media Rewinder, Sub-Assembly, Spare, PM43 1

Rewinder Full Batch Take-up and Peel-Off Kit Replacement

1. All accessories are available in the price guide including installation instructions. See Price Guide under Accessories for both
PM43 and PM43c printer models. Go to http://www.intermec.com/partner-products/prtrpm43a/selling-points.aspx under
Manuals to download the installation instructions for all accessories.

Full Batch Take-Up Assembly, Media Side Full Batch Take-Up Assembly, Electronic Side

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 67 of 70

OPERATION: Cutter Assembly

The batch rewind spool and belt mechanism are part of rewinder full batch take-up kit. The kit is available as an accessory that
include installation instructions. This section does not contain instructions on how to replace the rewinder full batch take-up
kit. The installation and replacement instructions will be covered on next revision of this service work instructions.

Tools Required
Description Part Number
Torx Driver T10
Torx Driver T20

Parts Required
Item Part Number Description Qty
1 203-991-001 Cutter, Accessory Kit, PM43 1
2 203-992-001 Cutter, Accessory Kit, PM43c 1
3 203-993-001 Cutter Vertical Tray, Accessory Kit, PM43 1

Accessories Installation and Replacement

1. All accessories are available in the price guide include installation instructions. See Price Guide under Accessories for both
PM43 and PM43c printer models. Go to http://www.intermec.com/partner-products/prtrpm43a/selling-points.aspx under
Manuals to download the installation instructions for all accessories.

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 68 of 70

OPERATION: Labeling
The PM43 contains a variety of labels on its bottom housing. These labels consist of both pre-printed labels that are ready to
apply off the shelf and print on demand labels that have specific content that must be printed to match the particular unit
being serviced. Anytime a bottom housing assembly is replaced, it will need new labels installed. See the Service Repair
Information web site for software and format files needed to reproduce the print on demand label set.

Tools Required
Description Part Number

Isopropyl alcohol solution

Parts Required
Item Part Number Description Qty
1 1-970315-40 Print-On-Demand Label 45mm x 60mm, Blank, Family Certification Label 1
2 1-970315-60 Print-On-Demand Label 45mm x 22mm, Blank, Serial Number Label 1
2 13062806 Black Ribbon 2.8 X 6024 TMX3202 RS-011 1

Certification Label
1. Refer to Print-On-Demand Label Printing System to print the certification label.
2. Refer to Figure 1 for location of the certification label.

Sample Sample

Figure 1 – Family Certification Label

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 69 of 70

Serial Number Label

1. Refer to Print-On-Demand Label Printing System to print the serial number label
2. Refer to Figure 2 for location of the serial number label on the back plate.

Figure 2 – Serial Number Label

OPERATION: Screws & Torque Settings

1-994059-012 Screw, MRT 4x12 ZP 14 lbf.in/16 kgf.cm
1-994059-008 Screw MRT 4x8 ZP T20 Grip 14 lbf.in/16 kgf.cm
Secure main logic board (MLB) x5
Secure power supply unit x7
1-994059-005 Screw, MRT 3x5 ZP 14 lbf.in/16 kgf.cm
1-994066-08 Screw MRT M2X8 ZP (not setup. Part of the speaker 14 lbf.in/16 kgf.cm
spare kits) 5 lbf.in/6 kgf.cm
1-994058-010 Screw MRT 3X10 FBZ 5 lbf.in/6 kgf.cm
800-593-006 Screw, Plastite, M3x6, PH, Torx, T10 3 lbf.in/3.5kgf.cm
800-619-010 Screw MRT 3X10 FBZ, Nylon Patch 5 lbf.in/6 kgf.cm
2.6 lbf.in/3 kgf.cm
800-593-012 Screw, Plastite, M3x12, PH, Torx,T10 3 lbf.in/3.5kgf.cm

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PM43 Service Work Instructions PM43,PM43C SWIPM43x-000 70 of 70

OPERATION: Print-On-Demand Label Printing System

The PM43 and PM43s use the same print-on-demand label printing system as manufacturing to print the configuration
number, serial number, and corresponding certification label.
The print-on-demand label printing system utilities front-end software T45765 and the format files design to support different
printer models and configurations.

Print-On-Demand Label Printing System

1. Print-on-Demand procedure can be found on the Intermec New Products Test Engineering SharePoint site. Access to
this site is available to Intermec Team Members only.
2. The format files for PM43 can be found on the Intermec New Products Test Engineering SharePoint site. Access to this
site is available to Intermec Team Members only.
3. Print-on-demand front-end software T45765 can be found on the Intermec New Products Test Engineering SharePoint
site. Access to this site is available to Intermec Team Members only.

OPERATION: Testing
The PM43 and PM43c use the same service test software and fixture.
It is require running the printer through the service test especially when replacing new main logic board (MLB) and touchless
configuration unit assembly to program printer information to the new board.

Testing Instructions
1. The test procedure for both PM43 and PM43c is OTPPHXAA-000
2. The test software for both PM43 and PM43c is called Phoenix Final Test. The software PM43 be found on the
Intermec New Products Test Engineering SharePoint site. Access to this site is available to Intermec Team Members
only.
3. The test fixture bill of material can be found Intermec New Products Test Engineering SharePoint site. Access to this
site is available to Intermec Team Members only.
4. The test will require test media and ribbon material. See below.

Ribbon
Media
Printer TTR Size DT Media Type Size
Type
6000 "
DuraTran 4x6 DT III 4x6
PM43A 12084106 E06175 E06144
II (8") Lightning (8")
DuraTran 4x6 DT III 4x6
PM43C 12084106 E06175 E06144
II (8") Lightning (8")

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