Lexmark C734 - Page 284

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4-68 Service Manual

5026

7. Remove the two screws (G).

8. Remove the duplex reference edge guide assembly.

Main Page

Default Chapter3
- Table of Contents3
Notices and Safety Information9
- Laser Notice9
- Lithium Warning15
- Safety Information15
Preface18
- Conventions18
General Information19
- Models19
- Options19
  - Media Options20
  - Memory Options20
- Printer Specifications21
- Media Specifications26
- Tools Required for Service33
- Acronyms33
Diagnostic Information35
- Start35
- Operator Panel and Menus36
- Power-On Self Test (POST) Sequence38
- Symptom Tables39
  - Printer Symptom Table39
  - Print Quality Symptom Table39
- User Status and Attendance Messages40
- Error Codes and Messages50
- Service Checks71
XX, 161.XX-Motor Error (Option Tray 2) Service Check88
XX, 163.XX-Motor Error (Option Tray 3) Service Check89
XX, 165.XX-Motor Error (Option Tray 4) Service Check90
XX, 167.XX-Motor Error (Option Tray 5) Service Check91
XX-Motor (HCIT Elevator) Error Service Check92
250.03-Paper Jam Error Service Check93
201.31-Paper Jam Error Service Check94
Paper Jam Error Service Check97
230.05-Paper Jam Error Service Check100
Paper Jam Service Check102
242.11-Paper Jam Service Check103
Paper Jam Service Check104
Paper Jam Service Check105
Paper Jam Service Check106
Paper Jam Service Check107
Paper Jam Service Check108
243.11-Paper Jam Service Check109
Paper Jam Service Check110
Paper Jam Service Check111
Paper Jam Service Check112
Paper Jam Service Check113
Paper Jam Service Check114
244.11-Paper Jam Service Check115
Paper Jam Service Check116
Paper Jam Service Check117
Paper Jam Service Check118
Paper Jam Service Check119
Paper Jam Service Check120
245.11-Paper Jam Service Check121
Paper Jam Service Check122
Paper Jam Service Check123
Paper Jam Service Check124
Paper Jam Service Check125
Transfer Module Error Service Check125
Engine Software Error, NVRAM MGR Problem Service Check126
920.25-Transfer Module Missing Error Service Check126
POST (Power-On Self Test) Error Service Check128
POST (Power-On Self Test) Printhead Motor Not Connected Error Service Check129
POST (Power-On Self Test) Error Service Check130
920 09-POST (Power-On Self Test)-Four Toner Sensors Not Connected Error Service132
Check132
920.10-POST (Power-On Self Test)-Three Toner Sensors Not Connected Error Service133
Check133
920.11-POST (Power-On Self Test)-Two Toner Sensors Not Connected Error Service134
Check134
POST (Power-On Self Test)-One Sensor Not Connected Error Service Check135
920.14-POST (Power-On Self Test)-Cartridge Motor 2 Not Connected Error Service136
POST (Power-On Self Test) Cartridge Motor 1 Not Connected Error Service Check136
Check136
- Check137
920.20-POST (Power-On Self Test)-Bad Transfer Module NVRAM Data Error Service Check138
POST (Power-On Self Test)-Bad Printhead NVRAM Data Error Service Check139
POST (Power-On Self Test)-Output bin Cable Not Connected Error Service Check140
- POST (Power-On Self Test)-Cartridge Motor 3 Not Connected Error Service Check141
- Check142
- POST (Power-On Self Test)-24 V Power Supply Failure Error Service Check143
- POST (Power-On Self Test)-Duplex Motor Not Connected Error Service Check145
- 920.28, 920.29-POST (Power on Self Test) Service Check146
- 925.03, 925.05-Fan Error Service Check146
- 925.04, 925.06-Cartridge Cooling Fan Error Service Check147
- XX, 947.XX-Transfer Roll Error Service Check148
- 950.29-EPROM Mismatch Failure150
- XX-System Board Failure Service Check151
- Interlock Switch Service Check152
- V Interlock Switch Service Check153
- Bubble Sensor Service Check154
- Dead Printer Service Check156
- Exit Sensor Service Check157
- Input Sensor Service Check159
- Networking Service Check160
- Operator Panel Service Check162
- Print Quality Service Check163
- Tray Linking Service Check169
Diagnostic Aids171
- Diagnostics Menu172
- Diagnostics Menu Structure172
- Available Tests172
- Registration175
- Quick Test177
- Alignment178
- Motor Tests179
- Print Tests180
- Input Source Tests180
- Hardware Tests182
- Panel Test182
- Button Test182
- Dram Test182
- Serial 1 Wrap183
- Duplex Tests184
- Usb Hs Test Mode184
- Print Test (Duplex)185
- Skew (Duplex)186
- Top Margin (Duplex)186
- Left Margin (Duplex)186
- Sensor Test187
- Printhead Tests188
- Mirror Motor Test188
- Servo Laser Test188
- Device Tests188
- Quick Disk Test188
- Disk Test/Clean189
- Flash Test189
- Printer Setup190
- Page Counts190
- Serial Number190
- Model Name190
- Configuration ID190
500 D192
- EP Setup192
- Reports192
- Event Log192
- Ep Defaults192
- Display Log192
- Exit Diagnostics193
- Print Log193
- Clear Log193
- Configuration Menu (CONFIG MENU)194
- Front Cover Locked in Place202
- Printhead Verification205
- Paper Jams208
Repair Information217
- Safety Information217
- Removal and Cleaning Precautions217
- Handling ESD-Sensitive Parts218
- Handing the Photoconductor Unit218
- Screw and Retainer Identification Table219
- Adjustments224
  - Printhead Alignment224
- Printer Removal Procedures234
  - Precautions to Take before Maintenance Work234
- Cover Removals235
- Printer Removals261
- Option Removals380
Connector Locations395
- Locations395
- Connectors396
  - System Board Diagram396
Preventive Maintenance405
- Safety Inspection Guide405
- Lubrication Specifications405
- Maintaining the Printer405
Parts Catalog407
- How to Use this Parts Catalog407
- Assembly 1: Covers408
- Assembly 2: Front410
- Assembly 3: Right412
- Assembly 4: Rear414
- Assembly 5: Left416
- Assembly 6: Top418
- Assembly 7: Cable Parts Packet419
- Assembly 8: Optional 550-Sheet Media Drawer and Tray420
- Assembly 9: Optional Special Media Tray Assembly421
- Assembly 10: Optional High-Capacity Input Option (HCIT)422
- Assembly 11: Options and Features424
Index427
Part Number Index433

Lexmark C734 - Page 284

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