HP Color laserjet 5500 - Page 10

Fuser power supply PCB ................................................................................................245
Fuser drive unit ...............................................................................................................246
Fuser inlet paper sensor .................................................................................................249
Fuser delivery sensor and output bin full sensor ............................................................250
Static discharge comb ....................................................................................................252
Formatter fan ..................................................................................................................253
Cartridge fan ...................................................................................................................253
Optional 500-sheet paper feeder ..........................................................................................255
Paper feeder left cover ...................................................................................................255
Paper feeder right cover .................................................................................................256
Paper feeder pickup and feed rollers .............................................................................257
Paper feeder separation roller ........................................................................................257
Paper feeder pickup unit .................................................................................................257
Paper feeder lifter drive unit .........................................................................................259
Paper feeder length and width detection switches .......................................................260
Paper feeder pickup clutch .............................................................................................261
Paper feeder PCB ..........................................................................................................262
7 Troubleshooting
Introduction ............................................................................................................................266
Troubleshooting process .......................................................................................................267
Pre-troubleshooting checklist .........................................................................................267
Troubleshooting flowchart ..............................................................................................268
Troubleshooting flowchart (continued) ...........................................................................270
Troubleshooting power-on ..............................................................................................270
Printer error troubleshooting .................................................................................................272
Status messages ............................................................................................................272
Warning messages .........................................................................................................272
Error messages ..............................................................................................................272
Critical error messages ...................................................................................................272
Alphabetical printer messages ..............................................................................................273
Numerical printer messages .................................................................................................302
Replacement parts configuration (HP Color LaserJet 5550 models) ...................................341
Both the formatter and DC controller ..............................................................................341
Formatter (new or previously installed in another printer) ..............................................341
DC controller (new or previously installed in another printer) ........................................342
Paper path troubleshooting ...................................................................................................343
Jams ...............................................................................................................................343
Jam locations ..................................................................................................................343
Jam locations by error message ....................................................................................343
Jam recovery ..................................................................................................................345
Avoiding paper jams .......................................................................................................346
Persistent jams ...............................................................................................................347
Basic troubleshooting for paper jams .............................................................................347
Data collection ................................................................................................................347
General paper path troubleshooting ...............................................................................348
Paper path checklist .......................................................................................................348
Paper transport troubleshooting ............................................................................................354
Paper is wrinkled or folded .............................................................................................354
Image formation troubleshooting ..........................................................................................356
Print quality problems associated with media ................................................................356
Overhead transparency defects .....................................................................................356
Print quality problems associated with the environment ................................................357
Print quality problems associated with jams ..................................................................357
Print quality troubleshooting pages ................................................................................357
viii ENWW