Rear cover, simplex product .............................................................................................. 63
Remove the rear cover, simplex product .......................................................... 63
Face-down cover ............................................................................................................... 65
Remove the face-down cover ........................................................................... 65
Main assemblies ................................................................................................................................. 67
Formatter PCA ................................................................................................................... 67
Laser/scanner assembly .................................................................................................... 68
Remove the laser/scanner assembly ................................................................ 68
Reinstall the laser/scanner assembly ................................................................ 71
Pickup assembly ................................................................................................................ 72
Remove the pickup assembly ........................................................................... 72
Reinstall the pickup assembly ........................................................................... 78
Fuser .................................................................................................................................. 80
Remove the fuser .............................................................................................. 80
Reinstall the fuser ............................................................................................. 86
Main motor ......................................................................................................................... 87
Remove the main motor .................................................................................... 87
Reinstall the main-motor drive belt .................................................................... 92
Pickup solenoid .................................................................................................................. 93
Remove the pickup solenoid ............................................................................. 93
Engine controller PCA ....................................................................................................... 97
Remove the engine controller PCA ................................................................... 97
Reinstall the engine controller PCA ................................................................ 102
Duplex-reverse solenoid, duplex product ........................................................................ 104
Remove the duplex-reverse solenoid .............................................................. 104
Main fan, duplex product ................................................................................................. 107
Remove the main fan ...................................................................................... 107
Reinstall the main fan ...................................................................................... 109
Duplex-connector PCA, duplex product ........................................................................... 110
Remove the duplex-connector PCA ................................................................ 110
3 Solve problems ........................................................................................................................................... 113
Solve problems checklist .................................................................................................................. 114
Troubleshooting process .................................................................................................................. 116
Determine the problem source ....................................................................................... 116
Power subsystem ............................................................................................................ 117
Power-on checks ............................................................................................. 117
Tools for troubleshooting .................................................................................................................. 118
Individual component diagnostics .................................................................................... 118
Engine diagnostics .......................................................................................... 118
Engine-test button .......................................................................... 118
Components tests ........................................................................................... 119
Drum rotation functional check ...................................................... 119
ENWW vii
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