Test 1 (print-quality test)...................................................................................110
Test 2 (copy-quality test)...................................................................................110
Test 3 (fax-quality test)......................................................................................111
Parts-removal order...........................................................................................................112
Remove the print cartridge................................................................................................113
External panels, covers, and doors....................................................................................................114
Right cover.........................................................................................................................114
Left cover...........................................................................................................................116
Print-cartridge door............................................................................................................118
Rear cover.........................................................................................................................120
Top cover...........................................................................................................................122
ADF assembly....................................................................................................................................124
Scanner assembly..............................................................................................................................126
Bezel and control panel......................................................................................................................128
Internal assemblies............................................................................................................................131
Convenience-stapler assembly (HP LaserJet 3392 only)..................................................131
Convenience-stapler power supply (HP LaserJet 3392 only)............................................132
Convenience-stapler ac inlet cable (HP LaserJet 3392 only)............................................134
Convenience-stapler power supply bracket and strap (HP LaserJet 3392 only)...............135
Speaker.............................................................................................................................136
Power-switch PCA.............................................................................................................138
Formatter...........................................................................................................................139
Duplex assembly...............................................................................................................142
Laser/scanner....................................................................................................................144
Memory-tag-reader assembly............................................................................................146
Fuser..................................................................................................................................148
Fan....................................................................................................................148
Duplex-drive gears............................................................................................150
Duplex solenoid.................................................................................................151
Fuser..................................................................................................................................153
Interlock assembly.............................................................................................................159
ECU...................................................................................................................................160
Main motor.........................................................................................................................165
Pickup-and-feed assemblies..............................................................................................167
Transfer roller....................................................................................................167
Registration-roller assembly..............................................................................................168
Main gear assembly and tray 2 pickup solenoid................................................................169
6 Troubleshooting
Troubleshooting process....................................................................................................................174
Troubleshooting checklist..................................................................................................174
Jams...................................................................................................................................................177
Causes of jams..................................................................................................................177
Tips to avoid jams..............................................................................................................177
Where to look for jams.......................................................................................................178
Jams in the print-cartridge area.........................................................................................179
Jams in the trays................................................................................................................181
Jams in the output bin........................................................................................................187
Jams in the straight-through output path...........................................................................188
Jams in the duplex path.....................................................................................................190
viii ENWW
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