6 Removal and replacement
Introduction ......................................................................................................................................... 90
Removal and replacement strategy ................................................................................................... 90
Electrostatic discharge ....................................................................................................................... 90
Required tools ................................................................................................................................... 90
Before performing service .................................................................................................................. 92
After performing service ..................................................................................................................... 92
Post-service test ................................................................................................................................. 93
Print-quality test ................................................................................................................. 93
Parts removal order ............................................................................................................................ 94
Remove the print cartridges ............................................................................................................... 95
Rollers ................................................................................................................................................ 96
Pickup roller ....................................................................................................................... 96
Separation roller ................................................................................................................ 98
Transfer roller ................................................................................................................................... 100
Feed assembly ................................................................................................................................. 102
External panels, covers, and doors .................................................................................................. 103
Right cover ....................................................................................................................... 103
Left cover ......................................................................................................................... 105
Front door and Tray 1 or jam-access door ...................................................................... 107
Control-panel module and photo-card reader PCA ......................................................... 111
Rear-side cover ............................................................................................................... 115
Rear-upper cover ............................................................................................................. 116
Rear door and rear-lower cover ....................................................................................... 117
Top cover ........................................................................................................................ 119
Internal assemblies .......................................................................................................................... 122
Main motor ....................................................................................................................... 122
Fuser motor ..................................................................................................................... 123
Intermediate transfer belt (ITB) ........................................................................................ 124
Reinstall the ITB .............................................................................................. 129
DC controller PCA ........................................................................................................... 131
Special consideration ...................................................................................... 131
Remove the DC controller PCA ...................................................................... 131
Formatter PCA ................................................................................................................. 134
Special consideration ...................................................................................... 134
Remove the formatter PCA ............................................................................. 134
Power supply (high-voltage) ............................................................................................ 136
Power supply (low-voltage) .............................................................................................. 140
Power supply (fuser) ........................................................................................................ 146
Fuser ................................................................................................................................ 149
7 Problem solve
Solve problems checklist .................................................................................................................. 154
ENWW vii