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EPSON DFX-9000

Serial Impact Dot Matrix Printer

FIELD REPAIR GUIDE

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Notice

All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means electronic,

mechanical, photocopying, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.

All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would

greatly appreciate being informed of them.

The contents of this manual are subject to change without notice.

The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences

thereof.

EPSON is a registered trademark of SEIKO EPSON CORPORATION.

General Notice: Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their

respective owners. EPSON disclaims any and all rights in those marks.

Copyright © 2005 SEIKO EPSON CORPORATION.

Imaging & Information Product Division

I&I CS/Quality Management & PL Department

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About This ManualThe instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions as listed below:

Symbols Used in this Manual

Various symbols are used throughout this manual either to provide

additional information on a specific topic or to warn of possible danger

present during a procedure or an action. Be aware of all symbols when

they are used, and always read NOTE, CAUTION, or WARNING

messages.

Indicates an operating or maintenance procedure, practice

or condition that is necessary to keep the product’s quality.

Indicates an operating or maintenance procedure, practice,

or condition that, if not strictly observed, could result in

damage to, or destruction of, equipment.

May indicate an operating or maintenance procedure,practice or condition that is necessary to accomplish a taskefficiently. It may also provide additional information that isrelated to a specific subject, or comment on the resultsachieved through a previous action.

Indicates an operating or maintenance procedure, practiceor condition that, if not strictly observed, could result in injury

or loss of life.

Indicates that a particular task must be carried outaccording to a certain standard after disassembly andbefore re-assembly, otherwise the quality of thecomponents in question may be adversely affected.

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This page was left blank intentionally.

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Epson DFX-9000 Field Repair Guide 3/29/07

Printer Component, Software Item, LCD Display, Printer But ton Page iv.

Motors, Sensors and Switches . . . . . . . . . . . . . . . . . . . . . . . . . .154Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .154

SP Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .154

LF Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .155RF Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .155

OC Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .156

HCPP Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .157

APTC Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .158

Motor Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .151

Sensors and Swi tches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .159

Sensors and Switches Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .162 APTC Unit Mount Posi tion Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .162

Card Guide Mount Posit ion Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .164

Parallel ism Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .168

APTC Thickness Detect ion Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .179

APTC Detection Posit ion Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .192

APTC Unit Mount Posi tion Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .198

Card Guide Mount Posit ion Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .199

Parallel ism Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203

GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .214

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Printer Component, Software Item, LCD Display, Printer Button Page v.

Revision History

Date Revision Details

December 1, 2005 Initial Release.

September 1, 2006 Added Motors, Sensors, and Switches Test Points.

October 3, 2006 Corrected errors in Component Replacement Chapter.

Added Adjustments Chapter.

March 29, 2007 Added Front and Rear Tractor Removal and Installation procedures.

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Control Panel Map Printer Component, Software Item, LCD Display, Printer Button Page 1.

Control Panel Map

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Control Panel Map

Paper Path Indication

Status LCD

Paper Micro Feed Down

Paper Micro Feed Up

Paper out indicator

Paper path Select

Font Select

Pitch Select

Tear off Position Select

Top Of Form PositionSelect

Paper load, Line feedand Form Feed

Print Pause

Hold Font & Pitch to Clear print buffer Hold Tear Off & Top of Form To Enter Select Type Mode

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Button Functions At Power On

Pause Bi-Direction Adjustment

LF/FF Load Draft Self Test

Top Of Form NLQ Self TestPitch Selects Pitch

Font Default Setting Mode

LF/FF Load + Top of Form Data Dump

LF/FF Load + Tear of f Clears Driving Line Count for Ribbon Change Timing

Pitch + Font Panel Lock Out Mode

Pause + LF/FF Load + Micro Feed Down Clears EEPROM

Font + Pitch + Front/Rear Error Analysis Mode

Button

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SelecType Funct ions and Settings

NOTE: ALL UNDERLINED TEXT ARE DEFAULT SETTINGS

Select Type Function Map

While printer LCD indicates a READY state,pressing the Tear off & Top of form buttons at

the same time will allow entry into the select

type menu.

The Font & Pitch buttons will allow the user

to scroll through the menu.

Pressing either Tear off or Top of form will

allow the user to change the selected item.

Pressing Tear off & Top of form at the same

time will allow the user to exit with the option of

saving or not saving their changes.

Select Type Options1. Language - English, Franchise, Deutsche, Italiano, Espanol,Portugues.

2. Print settings - Execute.3. Pge length rear (in inches) - 3, 3.5, 4, 5.5, 6, 7, 8, 8.5, 11, 70/6, 12,14,17.

4. Pge length front (in inches) - 3,3.5, 4, 5.5, 6, 7, 8, 8.5,11, 70/6,12,14,17.

5. Skip perforation - Off , On.

6. Line spacing - 1/6 inches, 1/8 inches.

7. Left margin - 0 to 80 columns.

8. Right margin - 1 to 136 columns.

9. Platen gap - Auto, 0 to 14.

10. Auto tear of f - Off, On.

11. Auto l ine feed - Off , On.

12. Print direction - Bi-D, Uni-D.13. Software - ESC/P, IBM PPDS, Others.

14. 0 slash - Off, On.

15. I/F mode - Auto , Parallel, Serial,USB,Optional.

16. I/F wait time - 10 seconds, 30 seconds.

17. Parallel Bi-D - Off, On.

18. Packet mode - Auto , Off.

19. Baud rate. - 19200BPS, 9600BPS, 4800BPS,2400BPS,1200BPS,600BPS,300BPS.

20. Parity - None, Odd, Even, Ignore.

21. Data length - 8-bit, 7-bit.

22. Character table - PC437, PC850, PC860,PC863, PC865, PC861,BRASICII, Abicomp,

Roman8, ISO Latin 1, PC858, ISO8859-15, Italic USA, Italic France,

Italic Germany, Italic U.K., Italic Denmark, Italic Sweden, Italic Italy,

Italic Spain.

23. Auto CR (IBM) - Off , On.

24. IBM table - Table 2, Table 1.

25. Buzzer - Off, ON.

26.Low noise mode - Off, On.

27. Auto cut mode - OFF, On.

28. Auto cut/back - OFF, On.29. Overlapping forms - OFF, On.

30. Forms w/labels - OFF, On.

31. Skip binding - OFF, On.

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Default Settings Mode and Options

Power-On Default Settings ModeWith the printer off hold the Font button down & then

power on the printer. If the LCD indicates:

SETTINGS MODE you have entered default settingsmode. Within the default settings mode you have three

menus to select from using the Tear of f & Top of fo rm

buttons. Once the desired menu has been selected use

the Font & Pitch buttons to scroll through the menu.

Once the desired setting to changed has been located

use the Tear off & Top of fo rm buttons to change the

setting.

Powering off the unit will save the settings.

Default Settings Menu Options

1. Label base pos - Paper left edge, First dot.

2. Label top pos - 0/216 inches to 4752/216 inches

3. Label length - 0/216 inches to 4752/216 inches4. Label left pos - 0/120 inches to 1440/120 inches.

5. Label width - 0/120 inches to1440/120 inches.

6. Base sheet PG - 0 to14.

7. Label paper PG - 0 to 14.

1. Pause - Unlock, lock.2. Micro feed - Unlock, Lock.

3. Load - Unlock, Lock.4. LF - Unlock, Lock.5. FF - Unlock,Lock.6. Top of Form - Unlock, Lock.7. Tear Off - Unlock, Lock.8. Font - Unlock, Lock.9. Pitch - Unlock, Lock.10. Front/Rear - Unlock, Lock.11. Menu - Unlock, Lock.12. Reset - Unlock, Lock.

1. Print settings

Panel lock out

Print settings

Forms w/labels

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Component Replacement Printer Component, Software Item, LCD Display, Printer Button Page 6.

Component

Replacement

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Component Replacement

All directional references (left, right, top, bottom, front, and back/rear) are referenced with the printer positioned as

shown above.

Before removing any component from the DFX-9000, ensure that the AC Power source has beenremoved.

E DFX 9000 Fi ld R i G id 3/29/07

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Front Cover Assembly

1. Open the Front Cover .

2. Remove the Stopper from the left side of the Front Cover . Gently apply inward pressure to the clips and pull

outwards to free the Stopper from the Front Cover .

E DFX 9000 Fi ld R i G id 3/29/07

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3. Hold the Front Cover open and apply pressure to the right.

4. Pull the Front Cover forward to free it from Upper Case.

Epson DFX 9000 Field Repair Guide 3/29/07

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Rear Cover

1. Open the Rear Cover .

2. On the Rear Cover , remove the 2 screws on the left side and the 2 screws on the right side that secure the RearCover to the hinges.


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3. Slowly slide the Rear Cover away from the printer as indicated by the blue arrow. Slowly release the Hinge as

indicated by red arrow. Releasing the Hinge too quickly can cause personal injury or damage to the printer.

The hinges are spring loaded. Release the hinges slowly.Releasing a hinge too quick ly can cause personal injury or damage to the printer.


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Control Panel

1. Open the Top Cover .

2. Release the three tabs, indicated by the arrows below, that hold the Control Panel in place.

Tabs


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3. Pull the Control Panel forward and disconnect the Control Panel Wiring Harness from the Control Panel.

Control Panel Connector


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p p


Upper Case

1. At the back of the printer, remove the two screws located at the lower left and lower right corners that secure the

Upper Case.

2. Grasping the lower front right and lower front left hand corners, pull forward and then upward to release the

hooks that fasten the Upper Case to the Lower Case.


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3. Pull the Upper Case upward to completely remove the Upper Case.


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Mechanism Removal

Note: Perform the Upper Case Removal procedure before performing the steps below. Steps 2 - 4 refer

to “ Rear Grabs” , “Tilt Bar” , and “ Grommet” . Refer to the figure below for the location of these

items.

When performing Step 4, ensure that the Tilt Bar is posit ioned as indicated in the figure below to

prevent damage to the wiring harness located near the Grommet.

Front and Rear “ Grabs”

Place bottom of Tilt Bar here

Place

Place bottom ofTilt Bar in the

small square area


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1. Remove the one screw that holds the Control Panel Wiring Harness to the upper right side of the Mechanism.

2. Standing at the back of printer, grasp the two Rear Grabs and tilt the Mechanism forward.


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3. With the Mechanism tilted forward, remove the Tilt Bar, located in the right rear corner of the lower housing.

4. Insert the top of the Tilt Bar into the Rubber Grommet on the right side of Mechanism and the bottom of the

Tilt Bar into the Lower Housing as shown below. This will keep Mechanism tilted forward.

Tilt Bar

Place bottom of Tilt Bar here

Place

Place bottom ofTilt Bar in thesmall square area

Right Rear Corner of Printer


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5. Disconnect all of the data and power cables from the Main Logic Board. Figure 1 below points out which cables

are to be removed. .

6. Remove the Mechanism from the Lower Case

Figure 1


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Print Head Removal

Note: Perform the Upper Case removal procedure before performing the steps below.

1. Remove the two screws located on the left and right sides of the Print Head.

2. Slightly tilt the Print Head back, then pull the Print Head up and away from the Carriage as depicted below.


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Ribbon Mask & Ribbon Mask Holder Removal

1. Move the Carriage to the “ribbon change position” (marked by the triangle) and remove the two screws that

secure the Ribbon Mask in place.

2. Remove the three screws that secure the black Carr iage Holder and pull the Carriage Holder away from the

Carriage Assembly.

2 Screws

Triangle


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3. Remove the white FFC cable from Carriage Assembly PCB.

4. Remove the two Top of Form Data Cables.


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5. Tilt the Ribbon Mask Holder forward and slowly pull upward while guiding the Top of Form Data Cables

through the Carriage Assembly.


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Ribbon Mask Removal

1. With the platen side of the Ribbon Mask Holder facing you, apply a slight pressure to the Ribbon Mask

allowing it to bow.

2. While holding the Ribbon Mask in this position, from the Print Head side, slide one end of the Ribbon Mask out

of the Ribbon Mask Holder , then slide out the other side.


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Carriage Motor (SP Motor)

Note: The Upper Case and Mechanism removal procedure must be performed before performing the

steps below.

1. Remove the two cables from connectors CNSPHS and CNSPM located on the Main Board.

2. Release the Cable Clamp holding the Carriage Motor Harness and remove the Carriage Motor Harness from

the Cable Clamp.

CNSPHS

CNSPM


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3. There is a Ferrite Core attached to the Carriage Motor wiring harness. Release the Ferrite Core lock clips using

a small flatblade screwdriver.

4. Remove the Ferri te Core from the Carriage Motor wiring harness.

Carriage Motor wiring harness

Ferrite Core

Lock Clips


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5. Pull the Carriage Motor wiring harness through the opening on the Right Side Frame located just under the SP

Motor .

6. Remove the two screws securing FAN3 to the Right Side Frame and remove FAN3.

Fan3 Screws

Fan 3


7 R th t i th St BR t th L ft Sid F d th St

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7. Remove the two screws securing the Stopper BR to the Left Side Frame and remove the Stopper.

8. Remove the three screws securing the Carriage Motor .


9 Tilt th b d f th C i M t f th i t t t l k i th C i M t B lt

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9. Tilt the body of the Carriage Motor away from the printer to create slack in the Carriage Motor Belt.

10. Remove the Tension Pulley located on the Left Side Frame.

11. Pull the Carriage Motor to the right while guiding the Carriage Motor Belt through the Right Side Frame.


12 Remove the four screws that secure the Motor Bracket to the Carriage Motor

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12. Remove the four screws that secure the Motor Bracket to the Carriage Motor .

13. Remove the Motor Bracket from the Carriage Motor .


Ribbon Drive Assembly Removal

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Ribbon Drive Assembly Removal

Note: The Upper Case & Mechanism removal procedure must be performed before the performing the

steps below.

1. Release the Cable Clamp securing the wiring harnesses depicted below.

2. Remove the two screws securing the Platen Gap Motor to the Right Side Frame.


3 Pull the Platen Gap Motor away from the Right Side Frame

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3. Pull the Platen Gap Motor away from the Right Side Frame.

4. Disconnect the Ribbon Drive Unit Wiring Harnesses from connectors CNRMS and CNRFS on the Sensor

Board.

5. Remove the one screw securing the Ribbon Drive Unit to the Right Side Frame.


6. Pull the Ribbon Drive Unit away from the Right Side Frame and pull the wiring harnesses through the opening

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6. Pull the Ribbon Drive Unit away from the Right Side Frame and pull the wiring harnesses through the opening

in the Right Side Frame.


APTC Unit (Automatic Platen Gap) Assembly

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APTC Unit (Automatic Platen Gap) Assembly

Note: The Mechanism removal procedure must be followed before performing the steps below.

1. Remove the wiring harness from connector CNAPTCS on the Sensor Board.

2. Position the Tractor Select Cam towards the front of the printer.


3. Remove the two screws that secure the Platen Gap Assembly to the Left Side Frame.

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p y

4. Remove the Platen Gap Assembly by pulling the Platen Gap Assembly away from the Left Side Frame.


Carrier Unit (Carriage Assembly) Removal

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( g y)

Note: The Mechanism, Print Head, Carriage Motor, and Platen Gap Assembly removal procedure must

be performed before performing the steps below.

1. Remove the four screws securing the Bearing Shaft Bracket.

2. Disengage the CES Scale (Timing Fence/Carriage Encoder Strip) from the CES Sensor by carefully flexing it

forward and away from the CES Sensor .


3. Carefully slide the Stay Shaft (Carriage Guide Shaft) towards the left side of the printer.

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4. Remove the SS Bearing and washer from the right side of the Stay Shaft.

5. Slide the Stay Shaft to the left, removing it from the Carrier Unit (Carriage Assembly).

SS Bearing

Washer


6. While holding the Carriage Assembly, pivot the Carriage Assembly away from the Guide Stay.

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7. Remove the two screws securing the SP Belt (Carriage Belt) to the Carriage Assembly. This will free the

Carriage Assembly from the Mechanism.

Guide Stay


LF Motor (Paperfeed Motor) Removal

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Note: The Mechanism removal procedure must be performed before performing the steps below.

1. Match the opening in the Pulley Gear to the LF Motor (Paper Feed Motor) mounting screw as shown below.

2. Remove the two screws that secure the LF Motor to the Left Side Frame.

Mounting Screw

Opening in Pulley Gear

Mounting Screws


3. Remove the LF Motor from the Left Side Frame.

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4. Remove the LF Motor wiring harness connector from the LF Motor .


Main Logic Board Removal

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Note: Perform the Mechanism removal procedure before performing the steps below.

1. Looking at the back of the Lower Case, remove the two screws that secure the Cover Plate of the Type B

Option Slot .

2. Remove the Cover Plate.

3. Remove the five screws that secure the Main Logic Board to the Lower Case.

4. Slide the Main Logic Board towards the front of the Lower Case until there is enough clearance at the back of

the Main Logic Board to clear the Interface Slot.

5. Lift the back of the Main Logic Board then lift out the Main Logic Board.


6. Remove the two screws that secure the Guide Plate.

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7. Remove the Guide Plate.

8. Slide the Guide Rail away from the Main Logic Board.


9. Remove the five screws that secure the Interface Plate to the Main Logic Board.

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10. Remove the Interface Plate from the Main Logic Board.


Front Tractor Removal

1 Complete the Mechanism remo al proced re

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Printer Component, Software Item, LCD Display, Printer Button Page 44.

1. Complete the Mechanism removal procedure

2. Move the BLUE TRACTOR LOCKS of both the TRACTOR FL UNIT and TRACTOR FR UNIT to the position

marked “ FREE” .TRACTOR FL UNIT

TRACTOR FR UNIT

BLUE TRACTOR LOCKS


3. Lift the two CENTER GUIDES upward, and remove them from the SUB SHAFT and TRACTOR SHAFT.

CENTER GUIDES

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TRACTOR SHAFT

SUB SHAFT


4. Release the FTRPE SENSOR CABLE from the three CABLE CLAMPS on the bottom rear of the PRINTER.CABLE CLAMP

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5. Disconnect the FTRPE SENSOR CABLE from the SENSOR BOARD UNIT (CNFTRPES: 3 pins), and pull the

FTRPE SENSOR CABLE out through the hole in the left side of the FRAME.

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FTRPE SENSOR CABLE and CONNECTOR

SENSOR BOARD

Hole in left side of the frame


6. Release the FTRPE SENSOR CABLE from the CABLE CLAMP on the outside of the left side of the FRAME.CABLE CLAMP on the outside of the left side of the FRAME.

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7. Pull the FTRPE SENSOR CABLE inside the frame through the hole in the left side of the frame, and then

release the FTRPE SENSOR CABLE from the CLAMP on the inside of the left side of the frame.FTRPE SENSOR CABLE

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FTRPE SENSOR CABLE

CLAMP on the inside of the left side of the frame

Hole in left side of the frame


8. Remove the two C.P. (S-P1) 3 x 10 SCREWS that secure the SUB SHAFT to the left and right sides of the

Frame

C P (S P1) 3 X 10 SCREW t l ft id f th SUB SHAFT

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C.P. (S-P1) 3 X 10 SCREW at left side of the SUB SHAFT

C.P. (S-P1) 3 X 10 SCREW

C.P. (S-P1) 3 X 10 SCREW at right side of the SUB SHAFT


9. Move the SUB SHAFT to the recess hole in the left side of the FRAME, and then pull out the SUB SHAFT.Recess hole in left side of FRAME

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SUB SHAFT


10. Remove the E-RING that secures the right end of the TRACTOR SHAFT to the right side of the FRAME, and

remove the WASHER, SPRING WASHER, and the TRACTOR SHAFT BEARING.E RING that secures the right end of the TRACTOR SHAFT

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E-RING that secures the right end of the TRACTOR SHAFT

to the right side of the FRAME

WASHER

SPRING WASHER

TRACTOR SHAFT BEARING


11. Pull the TRACTOR SHAFT out through the hole in the left side of the FRAME.

TRACTOR SHAFT

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Front Tractor Installation

1. When reassembling the FRONT TRACTOR you must match the positions of the PHASE MARKS of both the

TRACTOR FL UNIT d TRACTOR FR UNIT P iti th PHASE MARKS b i th TRACTORS b f

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TRACTOR FL UNIT and TRACTOR FR UNIT. Position the PHASE MARKS by moving the TRACTORS before

installing the TRACTOR SHAFT.TRACTOR FL UNIT PHASE MARK

TRACTOR FR UNIT PHASE MARK


2. Install the TRACTOR SHAFT BEARING into the TRACTOR SHAFT HOLE (from the outside), at the right side

of the FRAME.

Note: Both the TRACTOR SHAFT BEARINGS and the TRACTOR SHAFT HOLES are keyed

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Note: Both the TRACTOR SHAFT BEARINGS and the TRACTOR SHAFT HOLES are keyed.TRACTOR SHAFT BEARING

TRACTOR SHAFT HOLE


3. Install the TRACTOR SHAFT BEARING into the TRACTOR SHAFT HOLE (from the outside), at the left side of

the frame.

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TRACTOR SHAFT HOLE


4. Slide the TRACTOR SHAFT through the left TRACTOR SHAFT BEARING and through the TRACTOR FL

UNIT.

NOTE: When reassembling the left front tractor secure the FTRPE SENSOR CABLE with the CABLE

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NOTE: When reassembling the left front tractor, secure the FTRPE SENSOR CABLE with the CABLE

CLAMPS, ensure that there isn’t too much tension when moving the TRACTOR FL UNIT to the right,

and that the cable does not interfere with the TRACTOR SHAFT when moving the TRACTOR FL UNIT to

the left. Ensure that the FTRPE SENSOR CABLE is underneath the TRACTOR SHAFT.FTRPE SENSOR CABLE

TRACTOR FL UNIT

TRACTOR SHAFT

CABLE CLAMP


5. Attach the SPRING WASHER to the TRACTOR SHAFT with the exterior of its curve facing the TRACTOR

SHAFT BEARING.

6 Attach the WASHER to the TRACTOR SHAFT

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6. Attach the WASHER to the TRACTOR SHAFT.

7. Attach the E-RING to the TRACTOR SHAFT.E-RING

WASHER

SPRING WASHER

TRACTOR BEARING

TRACTOR SHAFT with SPRING WASHER, WASHER, and

E-RING installed.


8. Slide the SUB SHAFT through the SUB SHAFT HOLES in the frame, the TRACTOR FL UNIT and TRACTOR

FR UNIT.e t

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Right SUB SHAFT HOLE


9. Ensure that the SUB SHAFT rests in the keyed slots in the SUB SHAFT HOLES.

Left SUB SHAFT HOLE

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Right SUB SHAFT HOLE


10. Secure the SUB SHAFT to the FRAME with the two C.P. (S-P1) 3X10 SCREWS.

C.P. (S-P1) 3 X 10 SCREW at left side of the SUB SHAFT

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C.P. (S-P1) 3 X 10 SCREW

C.P. (S-P1) 3 X 10 SCREW at right side of the SUB SHAFT


11. Attach the two CENTER GUIDES to the SUB SHAFT and TRACTOR SHAFT by hooking them under the

TRACTOR SHAFT and clipping them downward onto the SUB SHAFT.

CENTER GUIDES

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TRACTOR SHAFT

SUB SHAFT


Rear Tractor Removal

1. Complete the Mechanism removal procedure.

2. Complete the Carriage Motor (SP Motor) removal procedure.

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o p g ( ) o p o

3. Move the BLUE TRACTOR LOCKS of both the TRACTOR RL UNIT and TRACTOR RR UNIT to the positionmarked “FREE”.

TRACTOR RR UNIT

TRACTOR RL UNIT

BLUE TRACTOR LOCKS


4. Remove the two C.B.S. 3 x 6 screws that secure the FAN3 MOTOR and FAN BRACKET to the right side of the

frame.C.B.S. 3 x 6 screw

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FAN3 MOTOR

FAN BRACKET


5. Release the RTRPE SENSOR CABLE from the three CABLE CLAMPS on the bottom rear of the printer, and

then disconnect it from the SENSOR BOARD UNIT.CABLE CLAMP

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SENSOR BOARD

RTRPE SENSOR CONNECTOR


6. Pull the RTRPE SENSOR CABLE inside the printer through the hole in the left side of the frame near the

TRACTOR RL UNIT.RTRPE SENSOR CABLE

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7. Remove the TENSION PULLEY UNIT from the left side of the frame by removing one C.B.S. 3 x 6 screw.C.B.S. 3 x 6 screw

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TENSION PULLEY UNIT


8. Remove the LF BELT from the left side of the frame.LF BELT

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9. Remove the three E-RINGS securing the two DV GEARS and TENSION PULLEY to the OC SLIDE CAM L.

UPPER DV GEAR with BELT GUIDE and E-RING

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TENSION PULLEY and E-RING

LOWER DV GEAR with E-RING


10. Remove the UPPER DV GEAR with the BELT GUIDE.UPPER DV GEAR

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BELT GUIDE


11. Remove the TENSION PULLEY and LOWER DV GEAR.TENSION PULLEY

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LOWER DV GEAR


12. Remove the OC SLIDE CAM L from the left side of the frame.OC SLIDE CAM L

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13. Remove the E-RING that secures the PULLEY GEAR to the left side of the frame, and remove the PULLEY

GEAR.

E-RING

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PULLEY GEAR


14. Remove the three C.B.S. 3 x 6 screws securing the CARRIAGE MOTOR to the right side of the frame.C.B.S. 3 x 6 screw

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CARRIAGE MOTOR


15. Pull the CARRIAGE MOTOR away from the frame and turn it clockwise to expose the right side of the UPPER

REAR TRACTOR SHAFT.CARRIAGE MOTOR

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REAR UPPER TRACTOR SHAFT


16. Remove the E-Ring, WASHER, SPRING WASHER, and TRACTOR BEARING from the right side of the REAR

UPPER TRACTOR SHAFT.

REAR UPPER TRACTOR SHAFT

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E-Ring

WASHER

SPRING WASHER

TRACTOR BEARING


17. Remove the REAR UPPER TRACTOR SHAFT, TR GEAR 2, and TRACTOR BEARING from the left side of the

frameREAR UPPER REAR TRACTOR SHAFT

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TR GEAR 2

TRACTOR BEARING


18. Remove the E-Ring, WASHER, SPRING WASHER, and TRACTOR BEARING from the right side of the REAR

LOWER TRACTOR SHAFTREAR LOWER TRACTOR SHAFT

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E-Ring

WASHER

SPRING WASHER

TRACTOR BEARING


19. Remove the LOWER REAR TRACTOR SHAFT, TR GEAR 3, and TRACTOR SHAFT BEARING from the left

side of the frame.LOWER REAR TRACTOR SHAFT

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TR GEAR 3



20. Remove the two C.P. (S-P1) 3 x 10 screws that secure the SUB SHAFT to the left and right sides of the frame.C.P. (S-P1) 3 x 10 screw

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Left side of SUB SHAFT with C.P. (S-P1) 3 x 10 screw


Right side of SUB SHAFT with C.P. (S-P1) 3 x 10 screw

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21. Lift the SUB SHAFT up and out of the recessed holes in the left and right side of the frame, and pull it out of the

printer through the right side.SUB SHAFT

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22. Remove the TRACTOR RL UNIT and TRACTOR RR UNIT from inside the printer.

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23. Remove the three SPRINGS and two CENTER GUIDES from inside the printer.

SPRING

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CENTER GUIDE


Rear Tractor Installation

1. When reassembling the REAR TRACTOR, you must match the positions of the Phase Marks of both the

TRACTOR RL UNIT and TRACTOR RR UNIT, as well as the Black TABS of both SPROCKET WHEELS.

Position the Phase Marks by moving the TRACTORS before installing the TRACTOR SHAFT.

TRACTOR RL UNIT with correctly positioned PHASE MARK

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TRACTOR RL UNIT with correctly positioned PHASE MARK

Black TABS

Phase Mark

TRACTOR RR UNIT with correctly positioned PHASE MARK

Black TABS

Phase Mark


2. Install the UPPER REAR TRACTOR SHAFT BEARING into the UPPER REAR TRACTOR SHAFT hole (from

the outside), at the left side of the frame.

Note: Both the TRACTOR SHAFT Bearings and the TRACTOR SHAFT Holes are keyed.

UPPER REAR TRACTOR SHAFT hole

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UPPER REAR TRACTOR SHAFT Bearing


3. Install the UPPER REAR TRACTOR SHAFT with TR GEAR 2 connected into the UPPER REAR TRACTOR

SHAFT Bearing at the left side of the frame.UPPER REAR TRACTOR SHAFT with TR GEAR 2

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UPPER REAR TRACTOR BEARING


4. Slide the TRACTOR RL UNIT onto the REAR UPPER TRACTOR SHAFT through the SPROCKET WHEEL,

and position it between the left and right Guide Positions.

NOTE: When install ing the TRACTOR RL UNIT, ensure that there isn’ t too much tension on the RTRPE sen-

sor cable when moving the TRACTOR FL UNIT between the left and right Guide Positions.

TRACTOR RL UNIT

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SPROCKET WHEEL

Right Guide Position

Left Guide Posit ion

RTRPE SENSOR CABLE


5. Install the three TENSION SPRINGS, two GUIDE WHEELS, and the TRACTOR RR UNIT to the REAR UPPER

TRACTOR SHAFT.

TENSION SPRING

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GUIDE WHEEL

TRACTOR RR UNIT


6. Install the TRACTOR SHAFT BEARING, SPRING WASHER, WASHER, and E-Ring, to the right side of the

UPPER REAR TRACTOR SHAFT.

Note: Both the TRACTOR SHAFT Bearing and the TRACTOR SHAFT Hole are keyed. Install the Spring

Washer with the curve towards the TRACTOR SHAFT BEARING.

UPPER REAR TRACTOR SHAFT BEARING

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E-Ring

WASHER

SPRING WASHER



7. Gently pull the CARRIAGE MOTOR away from the frame and turn it counter-clockwise to line it up with its keyed

screw holes, and then reinstall the three C.B.S. 3 x 6 screws.C.B.S. 3 x 6 screw

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CARRIAGE MOTOR


8. Install the LOWER REAR TRACTOR SHAFT BEARING into the LOWER REAR TRACTOR SHAFT hole (from

the outside), at the left side of the frameLOWER REAR TRACTOR SHAFT hole

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9. Install the LOWER REAR TRACTOR SHAFT with TR GEAR 3 into the TRACTOR SHAFT BEARING and

through the TRACTOR RL UNIT and TRACTOR RR UNIT.

NOTE: The Phase Marks on both TR GEAR 2 and TR GEAR 3 are aligned with each other.

TR GEAR 2 Phase Mark

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TR GEAR 3 Phase Mark

LOWER REAR TRACTOR SHAFT


10. Route the RTRPE Sensor Cable out through the hole in the left side of the frame, and in through the hole

towards the front of the left side of the frame.RTRPE Sensor Cable

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11. Install the TRACTOR SHAFT BEARING, SPRING WASHER, WASHER, and E-Ring, to the right side of the

LOWER REAR TRACTOR SHAFT

Note: Both the TRACTOR SHAFT Bearing and the TRACTOR SHAFT Hole are keyed. Install the Spring

Washer with the curve towards the TRACTOR SHAFT BEARING

UPPER REAR TRACTOR SHAFT BEARING

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E-Ring

WASHER

SPRING WASHER



12. Route the RTRPE Sensor Cable through the two Cable Clamps at the bottom of the frame, and then reconnect

it to the SENSOR BOARD at connector CNRTRPES.Cable Clamps

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Connector CNRTRPES


13. Place the SUB SHAFT into the recessed holes in the left and right side of the frame, and then reinstall the two

C.P. (S-P1) 3 x 10 screws into its left and right side.

C.P. (S-P1) 3 x 10

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Left side of SUB SHAFT with C.P. (S-P1) 3 x 10 screw


Right side of SUB SHAFT with C.P. (S-P1) 3 x 10 screw

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14. Rotate the OC MOTOR GEAR clockwise or counterclockwise until the Phase Mark of the left OC CAM is shown

through the window of the left OC SLIDE.OC MOTOR GEAR

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OC CAM

OC CAM Phase Mark


OC CAM Phase Mark

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Left OC SLIDE


15. Install the Left OC CAM into the Left OC SLIDE so that its Phase Mark shows through the window of the Left

OC CAM SLIDE, and then reinstall the Left OC SLIDE and OC CAM.OC CAM SLIDE (back view)

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OC CAM Phase Mark (back view)

OC CAM (back view)

Left OC CAM SLIDE

OC CAM Phase Mark

OC CAM Phase Mark


16. Install the keyed NIP GEAR on the left side of the keyed NIP ROLLER SHAFT.NIP GEAR

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NIP GEAR installed on NIP ROLLER SHAFT


17. Install a DV ROLLER to the left side of the DV ROLLER R ASY SHAFT and the DV ROLLER F ASY SHAFT.DV ROLLER

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DV ROLLER and R ASY SHAFT

DV ROLLER and F ASY SHAFT


NOTE: When installing the DV ROLLERS push the right end of each DV ROLLER SHAFT to ENSURE

each is fully extended at the left side of the frame.

DV ROLLER ASY SHAFT R (right side)

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DV ROLLER ASY SHAFT F (right side)


18. Install the TENSION PULLEY, BELT GUIDE to the OC SLIDE CAM assembly

TENSION PULLEY

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TENSION PULLEY installed


19. Install the BELT GUIDE to the left side of the DV ROLLER R assembly.

BELT GUIDE

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BELT GUIDE installed


20. Install an E-Ring to secure both DV ROLLERS and the TENSION PULLEY.

E-Ring

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21. Reinstall the OC SENSOR BR UNIT using one C.P. (S-P1) 3 x 8 screwC.P. (S-P1) 3 x 8 screw

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OC SENSOR BR UNIT


22. Reinstall the TENSION PULLEY UNIT by using one C.P. (S-P1) 3 x 6 screw

C.P. (S-P1) 3 x 6 screw

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TENSION PULLEY


23. Reinstall the LF BELT and tighten the TENSION PULLEY

LF BELT

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TENSION PULLEY


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Troubleshooting Printer Component, Software Item, LCD Display, Printer Button Page 111.

Troubleshooting


Troubleshooting

Preliminary Checks

Before troubleshooting the printer, verify that each of the following conditions are met:

1. Verify that the wall socket supplies clean AC current that matches the voltage rating on the printer. Measure thevoltage at the wall socket.

2. The POWER CORD must be free from physical damage, short circuit, wire breaks, or miswiring.

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p y g , , , g

3. The printer must be grounded properly.

4. The printer should not be located in a place where volatile or inflammable gases are produced.

5. The printer must be placed on a strong, steady, and level (less than 5° inclination) surface.6. The paper used must conform to the specifications listed in Chapter 1 of the Service Manual.

7. The Periodic Maintenance Parts must be replaced on schedule.

8. If you cannot print data from the host computer, initiate the printer’s self test and check for problems with the

output. Check the Default Settings printed on the Self Test for any incorrect settings.

9. Check the printer inside and out for dirt, obstructions or physical damage.10. Make certain that all cable connections are connected properly.

11. Confirm that all gears are engaged properly and are not exhibiting excess wear or other signs of friction or

misalignment.

12. Make certain that the rollers inside the printer are free from contamination, label remnants, other debris, and

scratches.


Power-on initialization sequence.

The following flow chart illustrates the sequence of steps the printer should complete during initialization at power-on

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The following 2 page flow chart illustrates the sequence of steps the printer’s mechanism should complete during ini-

tialization at power-on.

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Error / Warning Messages

The following table is a list of general errors that might be generated by the printer. These errors can be indicated

through beeper sounds, LCD messages, and/or LEDs. This table describes the cause of the errors (Status), and the

appropriate action(s) which should be taken to resolve them.

Table 1: List of General Errors

Beeper sounds

(see below)LCD Message

LED

Status RemedyPause

Paper

Out

Tear

Off

Top of

FormFront Rear

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–

Print head hotPlease wait

Blink - - - - - Head hot warning. The

temperature of the head

thermistor is above the

allowed limit.

Wait for the temperature of

the head thermistor to fall

below the upper limit.

• • •

Error:Switching notcompleted

On - - - - - The printer fails to

completely change the

paper path.

Tear off the paper at the

Top Cover, and press the

Pause or Front/Rear

button.

• • •

Error:No paper

loaded

On On - - - - Paper out error - loading.

Continuous paper is not fed

to the standby position.

Tear off the page at the

perforation; then press the

LF/FF Load button. The printer feeds the paper to

the standby position.

• • •

Error:Paper out

On On - - - - Paper out error - No paper

is loaded on the selected

tractor.

Load paper on the selected

tractor, or select a different

tractor by pressing the

Front/Rear button.

Remove your paper and

reload it correctly.

• • •

Error:Ribbon out

On - - - - - Ink ribbon out error: The

ribbon is not installed.

Install or reinstall the

ribbon cartridge, and press

the Pause button.


• • •

Error:

Ribbon jam

On - - - - - Ribbon jam error: The

ribbon has jammed.

Remove and re-install, or

replace, the ribboncartridge.

• • •Error:Paper jam

On Blink - - - - Paper jam error: Paper is

jammed in the printer

Clear the paper jam.

Table 1: List of General Errors

Beeper sounds

(see below)LCD Message

LED

Status RemedyPause

Paper

Out

Tear

Off

Top of

FormFront Rear

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NOTE: The description “ •” and “ –” in the above shows how the beeper sounds.

• Rapid Beep: Beeper sounds for approximately 100 ms at an interval of 100 ms.

– Long Beep: Beeper sounds for approximately 500 ms at an interval of 100 ms.

Paper jam jammed in the printer.

• • •Error: Coveropen

On - - - - - Cover open error: The

printer Top Cover is open.

Close the Top Cover.

– – – – –

Fatal Error: xxTurn off printer Blink Blink Blink Blink Blink Blink Fatal error: The printer willnot recover from the error,

even after turning the

power back on.

Refer to troubleshooting based on error codes.


Fatal Errors

Error log information is stored in the EEPROM (non-volatile memory) located on the main board. Use the adjustment

program to retrieve the error log information.

To access the printer with the Adjustment Program while in a fatal error state:

1. Turn off the printer2. Turn the printer on while holding down the Front/Rear + Font + Pitch Control Panel buttons. This places the

printer in the Error Analyzing Mode.

3 R th Adj t t P

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3. Run the Adjustment Program.

O1: LES Error

Cause: Carriage Home Position was not detected.

Action:

1. Check for obstructions in the Carriage area.

2. Check for proper lubrication of the Carrier Unit (Carriage Assy) and Stay Shaft (Carriage Guide Shaft).

3. Check the SP Belt (CR Drive Belt) for proper belt tension (1500-2000 gf).

4. Inspect the Left End Sensor for debris and physical damage, and proper seating in its connector.

5. Inspect the Carrier Cable Unit (FFC cable) for physical damage and proper seating in its connectors.

6. Test the Left End Sensor (Carriage Home Position Sensor ). If there is no toggle, replace the Carrier Unit

(Carriage Assy).

7. Test the SP Motor (Carriage Motor ) with an ohmmeter (See note below). The SP Motor should have 0.88 -

1.08 ohms of resistance. If the resistance is incorrect, replace the SP Motor .8. Replace the ROM Board.

Note: A weak ohmmeter battery, uncalibrated ohmmeter, and ohmmeter test lead resistance will cause an

inaccurate resistance reading. To obtain an accurate resistance reading, test the SP Motor as follows:

1. Set the ohmmeter on its lowest resistance scale.

2. Short the ohmmeter test leads together and note the value displayed on the ohmmeter.


3. Place the ohmmeter test leads across the SP Motor windings.

Subtract the value obtained in Step 2 from the value displayed in Step 3. The result is the actual resistance of the SP

Motor .

O2: CR Driver Error

Cause: SP Motor or the SP Motor driver circuit malfunctioned.

Action:


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g



4. Inspect the Left End Sensor for debris, physical damage, and proper cable seating in its connector.


6. Inspect the Carriage Encoder Sensor (CES Sensor ) for debris, physical damage, and proper cable seating in

its connector.

7. Test the Carriage Encoder Sensor (CES Sensor ). If there is no toggle, replace the Carrier Unit (Carriage

Assy ).8. Test the SP Motor (Carriage Motor ) with an ohmmeter (See note below). The SP Motor should have 0.88 -

1.08 ohms of resistance. If the resistance is incorrect, replace the SP Motor .

9. Replace the ROM Board.







Motor .


O3: CR Horizontal Posit ion Error

Cause: The SP Motor brake signal did not switch on within 3 seconds after turning the printer on.

Action:




4 Inspect the Left End Sensor for debris physical damage and proper cable seating in its connector

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4. Inspect the Left End Sensor for debris, physical damage, and proper cable seating in its connector.


6. Inspect the Interlock Switch for physical damage, bent actuator arm, and proper cable seating in its connector.

7. Test the Interlock Switch with an ohmmeter. If there is no toggle, replace the Interlock Switch.


its connector.


Assy).

10. Test the SP Motor (Carriage Motor ) with an ohmmeter (See note below). The SP Motor should have 0.88 -

1.08 ohms of resistance. If the resistance is incorrect, replace the SP Motor .




1. Set the ohmmeter on its lowest resistance scale.2. Short the ohmmeter test leads together and note the value displayed on the ohmmeter.



Motor .


O4: LF Driver Error

Cause: Abnormal current to the LF Motor or one phase of the LF Motor was energized for too long a time period.

Action:

1. Test all four (4) windings of the LF Motor (Line Feed Motor ) with an ohmmeter (See note below). Each winding

of the LF Motor should have 0.5 - 0.6 ohms of resistance. If the resistance is incorrect, replace the LF Motor .



inaccurate resistance reading. To obtain an accurate resistance reading, test the LF Motor as fol lows:

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g g,



3. Place the ohmmeter test leads across each of the LF Motor windings.

Subtract the value obtained in Step 2 from the each of the values displayed in Step 3. The result is the actual resis-

tance of the LF Motor .

O5: CR Error

Cause: Carriage Motor deceleration error.

Action:


its connector.


Assy).



O6: High Voltage Error

Cause: Either the +42vdc (motor drive voltage) or the +37vdc (print head drive voltage) is too high.

Action:

1. Replace the Power Supply.


O7: Low Voltage Error

Cause: Either the +42vdc (motor drive voltage) or the +37vdc (print head drive voltage) is too low.

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( g ) (p g )

Action:



O8: Over Load Error

Cause: Either the power supply has failed or the voltage detection circuit has malfunctioned.

Action:




O9: Fan1 Driver Error

Cause: Fan1 not rotating.

Action:

1. Check the FAN1 connection on the Sensor Board (CNFAN1).

2. Replace FAN1.3. Check the Fan Alarm Sensor and +42vdc connections on the ROM Board (CNSEN1 and CNSEN2

respectively).


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5. Replace the Sensor Board.

OA: Fan2 Driver Error


Action:


2. Replace FAN2.

3. Check the Fan Alarm Sensor and +42vdc connections on the ROM Board (CNSEN1 and CNSEN2respectively).




OB: Fan3 Driver Error


Action:


2. Replace FAN3.3. Check the Fan Alarm Sensor and 42vdc connections on the ROM Board (CNSEN1 and CNSEN2 respectively).


5 Replace the Sensor Board

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OC: Fan4 Driver Error


Action:


2. Replace FAN4.

3. Check the Fan Alarm Sensor and 42vdc connections on the ROM Board (CNSEN1 and CNSEN2 respectively).




OD: No Head Error

Cause: Could not detect the presence of the Print Head. During power-on initialization, the print head thermistor is

checked. This error is caused by not getting a valid reading from the print head thermistor.

Action:

1. Check that the Print Head is fully seated.

2. Inspect the Carrier Cable Unit (FFC) for physical damage and proper seating in its connectors (CNFHD1,

CNFHD2,CNRHD1, and CNRHD2 on the ROM Board).

3. Test the print head thermistor with an ohmmeter by placing the ohmmeter leads across contacts SEN1 and

SEN2 f th P i t H d Th i t l h ld b i t l 1k 15k h d di th

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SEN2 of the Print Head. The resistance value should be approximately 1k - 15k ohms, depending on the

internal temperature of the Print Head. The warmer the Print Head, the lower the resistance reading.

4. Replace the ROM Board.OE: Head Driver Error

Cause: At least one pin of the Print Head has been energized for an excessive period of time.

Action:

1. Inspect the Carrier Cable Unit (FFC) for physical damage.


3. Replace the Carrier Cable Unit.

4. Replace the Print Head.


OF: APTC Error

Cause: Could not detect the APTC (Automatic Paper Thickness Control) Home Position.

Action:

1. Check connectors CNSEN1 and CNSEN2 on the ROM Board for proper seating of the cables.

2. Test all four (4) windings of the APTC Motor with an ohmmeter (See note below). Each winding of the APTCMotor should have 365 - 446 ohms of resistance. If the resistance is incorrect, replace the APTC Unit.

3. Test the APTC Home Posit ion Sensor . If it does not toggle, replace the APTC Unit.


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inaccurate resistance reading. To obtain an accurate resistance reading, test the APTC Motor as

follows:



3. Place the ohmmeter test leads across each of the APTC Motor windings.

Subtract the value obtained in Step 2 from each of the values displayed in Step 3. The result is the actual resistance

of the APTC Motor .


11: Ribbon Feed Driver Error

Cause: The Ribbon Feed Motor malfunctioned, one of the Ribbon Feed Motor drive circuits malfunctioned or a wind-

ing of the Ribbon Feed Motor was energized too long.

Action:

1. Test all four (4) windings of the RF Motor with an ohmmeter (See note below). Each winding of the RF Motor

should have 13.5 - 16.5 ohms of resistance. If the resistance is incorrect, replace the RF Motor .



inaccurate resistance reading To obtain an accurate resistance reading test the RF Motor as follows:

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inaccurate resistance reading. To obtain an accurate resistance reading, test the RF Motor as follows:



3. Place the ohmmeter test leads across each of the RF Motor windings.


of the RF Motor .

12: Ribbon Jam Error

Cause: Could not detect ribbon motion.

Action:

1. Check that the ribbon cartridge is not jammed.

1. Test all four (4) windings of the RF Motor with an ohmmeter (See note below). Each winding of the RF Motor

should have 13.5 - 16.5 ohms of resistance. If the resistance is incorrect, replace the RF Motor .

2. Test the RF (Ribbon Feed) Sensor . If it does not toggle, replace the RF Unit.3. Replace the ROM Board.


inaccurate resistance reading. To obtain an accurate resistance reading, test the RF Motor as follows:




3. Place the ohmmeter test leads across each of the RF Motor windings.


of the RF Motor .

13: HCPP (Host-computer Controlled Paper Path) Driver Error

Cause: A winding of the HCPP Motor was energized for too long a time period.

Action:

1 Test all four (4) windings of the HCPP Motor with an ohmmeter (See note below) Each winding of the HCPP

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1. Test all four (4) windings of the HCPP Motor with an ohmmeter (See note below). Each winding of the HCPP

Motor should have 145 - 165 ohms of resistance. If the resistance is incorrect, replace the HCPP Motor .

2. Replace the ROM Board.Note: A weak ohmmeter battery, uncalibrated ohmmeter, and ohmmeter test lead resistance will cause an

inaccurate resistance reading. To obtain an accurate resistance reading, test the HCPP Motor as

follows:



3. Place the ohmmeter test leads across each of the HCPP Motor windings.


of the HCPP Motor .


14: HCPP (Host-computer Controlled Paper Path) Error

Cause: Did not detect that paper path switching occurred during a paper path switching operation.

Action:

1. Check for proper connections at connectors CNSEN1 and CNSEN2 on the ROM Board.

2. Check for proper connection of the HCPP Sensor at connector CNPPSS on the Sensor Board.

3. Test the HCPP Sensor. If there is no toggle, replace the HCPP Sensor .

4. Test all four (4) windings of the HCPP Motor with an ohmmeter (See note below). Each winding of the HCPP

Motor should have 145 - 165 ohms of resistance. If the resistance is incorrect, replace the HCPP Motor .

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inaccurate resistance reading. To obtain an accurate resistance reading, test the HCPP Motor as

follows:



3. Place the ohmmeter test leads across each of the HCPP Motor windings.

Subtract the value obtained in Step 2 from each of the values displayed in Step 3. The result is the actual resistanceof the HCPP Motor .

15: O/C Driver Error

Cause: A winding in the O/C Motor was energized too long.

Action:

1. Check for proper connection of the O/C Motor at connector CNO/C on the Sensor Board.

2. Test all four (4) windings of the O/C Motor with an ohmmeter (See note below). Each winding of the O/C Motor

should have 72 - 88 ohms of resistance. If the resistance is incorrect, replace the O/C Motor .




inaccurate resistance reading. To obtain an accurate resistance reading, test the O/C Motor as follows:



3. Place the ohmmeter test leads across each of the O/C Motor windings.Subtract the value obtained in Step 2 from each of the values displayed in Step 3. The result is the actual resistance

of the O/C Motor .

16: O/C Error

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16: O/C Error

Cause: The Roller Unit (Paper Bail) failed to open or close.

Action:1. Check for proper connections at connectors CNOCS1, CNOCS2, and CNO/C on the Sensor Board.

2. Check for proper connections at connectors CNSEN1 and CNSEN2 on the ROM Board.

3. Test all four (4) windings of the O/C Motor with an ohmmeter (See note below). Each winding of the O/C Motor

should have 72 - 88 ohms of resistance. If the resistance is incorrect, replace the O/C Motor .

4. Replace the ROM Board.Note: A weak ohmmeter battery, uncalibrated ohmmeter, and ohmmeter test lead resistance will cause an

inaccurate resistance reading. To obtain an accurate resistance reading, test the O/C Motor as follows:



3. Place the ohmmeter test leads across each of the O/C Motor windings.


of the O/C Motor .


17: PC (Perforation Cutter) Driver Error

Cause: A winding in the PC Motor was energized too long.

Action:

1. Check for proper connection of the PC Motor at connector CNSEN1 on the ROM Board.

2. Replace the Perforation Cutter Unit.


18: PC (Perforation Cutter) Error

Cause: The Perforation Cutter Unit Home Position was not detected

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Cause: The Perforation Cutter Unit Home Position was not detected.

Action:

1. Check for proper connection of the PC Motor at connector CNSEN1 on the ROM Board.

2. Check for proper connection of the Perforation Cutter Unit at connector CNPC on the Sensor Board.

3. Replace the Perforation Cutter Unit.


30: CG Error Cause: Character Generator Memory Circuit failure.

Action:

Replace the ROM Board

31: NVRAM Compare Error

Cause: FRAM memory error Action:



Troubleshooting Based on Symptoms

The following section provides a list of typical symptoms exhibited by the printer when a failure has occurred. This

section describes the appropriate actions which should be taken to accurately troubleshoot the cause of the failure

based upon the symptoms exhibited by the printer

No Control Panel LED’s light Action:

1. Check the power cable connection at both ends.

2. Perform a continuity check on the power cable with a ohm meter.

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e o a co u y c ec o e po e cab e a o e e

3. Verify that the wall socket supplies clean AC power that matches the voltage rating of the printer.

4. Check the connections at both ends of the OP Cable (Control Panel Cable). Replace the OP Cable asnecessary.

5. Replace the OP Unit.

6. Replace the Power Unit.

7. Initialize the ROM Board. If initialization fails replace the ROM Board.

Multiple Control Panel LED’s lit and do not extinguish

Action:

1. Initialize the ROM Board.

2. If initializing the ROM Board fails to resolve the problem, replace the ROM Board.


No initialization, Control Panel LED’s are lit

Action:

1. Verify that the Top Cover is closed.

2. Check, and if necessary replace the CO SW Assy (Cover Open Switch Assy).

3. Check, and if necessary replace the OP Cable and connections.4. Replace the OP Unit.

5. Initialize and if necessary replace the ROM Board.

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No init ialization unless I/O Cable removed

Action:

1. Replace the data cable.

2. Check the host computer interface for failure.

No print (No Self-Test and No Printing from Host Computer)

Action:

1. Verify that the Top Cover is closed.

2. Check the Pause LED. If it is lit, press the Pause button.


4. Verify that the Carrier Cable Unit is correctly connected to the Print Head and ROM Board.



Self Test OK, no print from Host Computer

Action:

1. Check that the data I/O cable is functional and it is connected correctly to the printer and host computer.

2. Enter Setup mode on the Control Pan

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