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HP 3500 Series - Page 11

HP 3500 Series
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ENWW ix
Tray 1 (multipurpose tray) pick-up solenoid (SL1) removal . 257
Tray 2 pick-up solenoid (SL2) removal . . . . . . . . . . . . . . . . . 257
Secondary transfer roller engaging solenoid (SL4) removal 258
Duplex feed solenoid (SL5) removal (HP3700 only) . . . . . . 259
Registration clutch (CL1) removal . . . . . . . . . . . . . . . . . . . . . 260
Black (K) development clutch (CL2 - image drive) removal . 261
Developing engaging drive clutch (CL3) removal . . . . . . . . 261
Motor and fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Feed motor (M1) removal . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Delivery motor (M2) removal . . . . . . . . . . . . . . . . . . . . . . . . 264
Drum motor (M3) removal . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Developing motor (M4) removal . . . . . . . . . . . . . . . . . . . . . . 266
Primary transfer roller engaging motor (M5) removal . . . . . . 268
Exhaust fan (FAN1) removal . . . . . . . . . . . . . . . . . . . . . . . . 270
Circuit Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
DC controller PCB removal . . . . . . . . . . . . . . . . . . . . . . . . . 272
Formatter PCB removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
High-voltage power supply PCB removal . . . . . . . . . . . . . . 276
Low-voltage power supply PCB removal . . . . . . . . . . . . . . . 279
Memory controller PCB removal . . . . . . . . . . . . . . . . . . . . . 280
Control Panel PCB removal . . . . . . . . . . . . . . . . . . . . . . . . . 281
Miscellaneous parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Swing rod guide, left removal . . . . . . . . . . . . . . . . . . . . . . . . . 282
Swing rod/lock guide, right removal . . . . . . . . . . . . . . . . . . . . 282
Transfer contact assembly removal . . . . . . . . . . . . . . . . . . . . 282
Developing contact assembly . . . . . . . . . . . . . . . . . . . . . . . . . 283
Tray 2 (cassette) parts removal. . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Tray 2 (cassette) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Cassette (Tray 2) guide, right, removal. . . . . . . . . . . . . . . . . . 285
500-Sheet paper feeder (Tray 3) covers . . . . . . . . . . . . . . . . . . . 290
Front cover removal - 500-sheet paper feeder . . . . . . . . . . . 290
Right cover removal - 500-sheet paper feeder . . . . . . . . . . . 291
Left cover removal - 500-sheet paper feeder . . . . . . . . . . . . 291
500-Sheet paper feeder internal parts. . . . . . . . . . . . . . . . . . . . . . 292
Pick-up roller removal - 500-sheet paper feeder . . . . . . . . . . 292
Separation pad removal - 500-sheet paper feeder . . . . . . . . 293
Pick-up drive unit removal - 500-sheet paper feeder . . . . . . 293
500-Sheet paper feeder sensor/solenoid/motor/PCB . . . . . . . . . . 294
500-Sheet paper feeder PCB removal - 500-sheet feeder . . 295
Pick-up clutch (CL4) removal - 500-sheet feeder . . . . . . . . . 295
Pick-up solenoid (SL3) removal - 500-sheet feeder . . . . . . . 296
Paper sensor (PS3) removal - 500-sheet feeder . . . . . . . . . 296
7 Troubleshooting
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Troubleshooting process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
Pre-troubleshooting checklist . . . . . . . . . . . . . . . . . . . . . . . . 304
Troubleshooting flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Troubleshooting power-on . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Printer error troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Status messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Critical error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Alphabetical printer messages . . . . . . . . . . . . . . . . . . . . . . . 309

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