Lexmark 4500-00 Series

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2-14 Service Manual

4500–E320/E322

Fuser failure–thermistor open error code

The operator panel is indicating a fuser failure–thermistor open

subcode.

Replace the fuser assembly.

Main Page

Table of Contents3
Laser Notices7
Safety Information17
Preface22
General Information23
Model Differences26
Printer Operation27
Printer Dimensions and Clearance27
Options28
Acronyms29
Diagnostic Information31
Start31
Diagnostics (E320/E322)31
Operator Panel32
Status Information33
Attendance Information34
Service Information37
Service Error Codes41
Operator Panel Light Summary Table55
Error Code Table56
Symptom Tables62
Diagnostics (E220/E321/E323)65
Operator Panel66
Light Patterns67
Status Information Light Patterns68
Obtaining Information about Printer Service Error Codes74
Service Error Codes75
Power-On Operations89
Power-On Self Test (POST)90
Symptom Tables90
Service Checks93
Cold Fuser Service Check94
Cooling Fan Service Check (E320/E322)95
Cooling Fan Service Check (E220/E321/E323)96
Controller Card Service Check (E220/E321/E323)97
Cover Interlock Switch Service Check (E320/E322)99
Cover Interlock Switch Service Check (E220/E321/E323)100
Dead Machine Service Check101
Engine Board Service Check (E320/E322)102
Fuser Service Check104
Hot Fuser Service Check106
Low Voltage Power Supply (LVPS) Service Check106
Main Motor Service Check107
Operator Panel Button Service Check108
Operator Panel Service Check109
Paper Feed Service Checks111
Parallel Port Service Check115
Print Quality Service Checks116
Transfer Roll Service Check129
Resetting User Defaults (E320/E322)130
Restoring Factory Defaults (E320/E322)131
Restoring Factory Defaults (E220/E321/E323)131
Using Hex Trace Mode (E320/E322)132
Using Hex Trace Mode (E220/E321/E323)132
Using Print Quality Test Pages (E320/E322)133
Using Print Quality Test Pages (E220/E321/E323)134
Using the Special Function Menu (E320/E322)135
Using the Special Function Menu (E220/E321/E323)136
Diagnostic Aids137
Diagnostic Aids (320/E322)137
Performing Self Test137
Information Priority137
Printer Operation Modes138
Printer Modes Summary Table139
Normal Printing Mode142
Demo Printing Mode143
Printing Menu Settings Page144
Diagnostic Tests Mode145
Special Function Menu147
Configuration Mode150
Diagnostic Aids151
Diagnostic Aids (E220/E321/E323)171
Operator Panel171
Configuration Menu Group or Diagnostic Menu Group172
Printer Diagnostics Mode176
Repair Information179
Handling Electrostatic Discharge (ESD)-Sensitive Parts179
Adjustment180
Printhead Assembly180
Lubrication181
Removal Procedures182
Cover Removals182
Auto Sheet Feed (ASF) Assembly Removal183
Charge Roll Assembly Removal184
Controller Card Cage Removal185
Controller Card Removal185
Cooling Fan Removal186
D-Roll Removal187
Engine Board Removal (E320/E322 Only)187
Fuser Assembly Removal188
High Voltage Power Supply (HVPS) Removal188
Low Voltage Power Supply (LVPS) Removal189
Operator Panel Removal189
Paper Feed Clutch Solenoid Removal190
Printhead Assembly Removal191
Transfer Roll Removal191
Connector Locations193
LVPS-Low Voltage Power Supply Board193
HVPS-High Voltage Power Supply Board194
Engine Board (E320/E322 Only)194
RIP Controller (E320/E322 Only)198
Controller (E220/E321/E323 Only)199
RIP Controller (E220/E321/E323 Only)200
Option Card (Replaceable on E320/E322 Only)203
E220/E321/E323 Wiring Diagram204
Preventive Maintenance205
Parts Catalog207
How to Use this Parts Catalog207
Assembly 1: Covers (E320/E322)208
Assembly 2: Frame214
Assembly 3: Fuser216
Assembly 4: Main Drive218
Assembly 5: Paper Feed220
Assembly 6: Printhead222
Assembly 7: Electronics224
Assembly 8: Options228
Assembly 10: Miscellaneous233
Index233
Part Number Index241

Lexmark 4500-00 Series - Page 44

Table of Contents

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