Remove the formatter PCA ............................................................................... 55
Wireless PCA ..................................................................................................................... 57
Remove the wireless PCA ................................................................................ 57
Laser/scanner assembly .................................................................................................... 58
Remove the laser/scanner assembly ................................................................ 58
Reinstall the laser/scanner assembly ................................................................ 60
Pickup assembly ................................................................................................................ 61
Remove the pickup assembly ........................................................................... 61
Reinstall the pickup assembly ........................................................................... 65
Fuser .................................................................................................................................. 67
Remove the fuser .............................................................................................. 67
Reinstall the fuser ............................................................................................. 71
Main motor ......................................................................................................................... 72
Remove the main motor .................................................................................... 72
Reinstall the main-motor drive belt .................................................................... 76
Pickup solenoid .................................................................................................................. 77
Remove the pickup solenoid ............................................................................. 77
Engine controller PCA ....................................................................................................... 80
Remove the engine controller PCA ................................................................... 80
Reinstall the engine controller PCA .................................................................. 84
3 Solve problems ............................................................................................................................................. 87
Solve problems checklist .................................................................................................................... 88
Troubleshooting process .................................................................................................................... 91
Determine the problem source ......................................................................................... 91
Power subsystem .............................................................................................................. 92
Power-on checks ............................................................................................... 92
Tools for troubleshooting .................................................................................................................... 93
Individual component diagnostics ...................................................................................... 93
Engine diagnostics ............................................................................................ 93
Engine-test button ............................................................................ 93
Components tests ............................................................................................. 94
Drum rotation functional check ........................................................ 94
Half self-test functional check ........................................................... 94
Diagrams ........................................................................................................................... 95
Plug/jack locations ............................................................................................ 95
Location of connectors ...................................................................................... 96
Locations of major components ........................................................................ 97
General timing charts ........................................................................................ 99
General circuit diagram ................................................................................... 100
Internal print-quality test pages ........................................................................................ 102
Cleaning page ................................................................................................. 102
Configuration page .......................................................................................... 102
ENWW vii
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