View the event log on the control panel display ............................................... 523
Print the PQ troubleshooting pages ................................................................. 524
Diagnostics page .............................................................................................. 525
Disable cartridge check (special mode test) .................................................... 526
Paper path sensors (special mode test) .......................................................... 527
Paper path test ................................................................................................. 527
Finishing paper path test .................................................................................. 528
Manual sensor test (special mode test) ........................................................... 528
Manual sensor test 2 (special mode test) ........................................................ 531
Component test (special mode test) ................................................................ 532
Print/Stop test ................................................................................................... 535
Colorband test .................................................................................................. 535
Information menu ............................................................................................. 535
Configure device menu/printing menu ............................................................. 536
Configure device menu/print quality menu ...................................................... 536
Configure device menu/resets menu ............................................................... 536
Test pages ......................................................................................................................................... 537
Engine test page ............................................................................................................... 537
Formatter test page ........................................................................................................... 537
Engine resets ..................................................................................................................................... 538
Cold reset .......................................................................................................................... 538
To perform a cold reset .................................................................................... 538
NVRAM initialization ......................................................................................................... 538
To initialize NVRAM ......................................................................................... 538
Hard disk initialization (4700 models) ............................................................................... 539
To initialize the hard disk ................................................................................. 539
Calibration bypass ............................................................................................................ 539
To bypass calibration ....................................................................................... 539
Quick Calibrate Now ......................................................................................................... 539
Full Calibrate Now ............................................................................................................. 539
Service menu ..................................................................................................................................... 541
Using the Service menu .................................................................................................... 541
Clear event log ................................................................................................. 541
Mono cycle count/Color cycle count ................................................................ 541
Serial number ................................................................................................... 541
Service ID ......................................................................................................... 541
Restoring the Service ID .................................................................................. 541
Converting the Service ID to an actual date .................................................... 542
Cold reset paper ............................................................................................... 542
Diagrams ........................................................................................................................................... 543
Main parts ......................................................................................................................... 543
Switches ............................................................................................................................ 545
Sensors ............................................................................................................................. 546
Solenoids .......................................................................................................................... 547
Motors and fans ................................................................................................................ 548
PCBs ................................................................................................................................. 549
DC controller PCB ............................................................................................................. 550
Connectors ........................................................................................................................ 551
General timing chart ......................................................................................................... 557
General circuit diagrams ................................................................................................... 558
xvi ENWW
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