Left cover ........................................................................................................

334

Pickup unit (middle cassette) ..........................................................................

335

Pickup unit (lower cassette) ............................................................................

336

Pickup unit (upper cassette) ............................................................................

336

Input tray is not attached ................................................................

336

Input tray is attached ......................................................................

337

Auto-close unit ................................................................................................

339

Pickup motor ...................................................................................................

339

Paper-feeder driver PCA .................................................................................

339

7 Solve problems

 

Troubleshooting process ..................................................................................................................

342

Determine the problem source ........................................................................................

342

Pre-troubleshooting checklist ..........................................................................

342

Troubleshooting checklist ................................................................................

343

Troubleshooting flowchart ...............................................................................

344

Power subsystem ............................................................................................................

345

Power-on checks .............................................................................................

345

Power-on troubleshooting overview ...............................................

345

Tools for troubleshooting ..................................................................................................................

347

Internal print-quality test pages ........................................................................................

347

Diagnostics page .............................................................................................

347

Configuration pages ........................................................................................

348

Configuration page .........................................................................

348

HP embedded Jetdirect page .........................................................

350

Embedded protocol page ...............................................................

351

Finding important information on the configuration pages ..............

352

Solve performance problems ...........................................................................................................

353

Solve connectivity problems .............................................................................................................

354

Solve direct-connect problems ........................................................................................

354

Solve network connectivity problems ...............................................................................

354

Solve network printing problems .....................................................................

354

Verify communication over the network ..........................................................

355

Control-panel message types ...........................................................................................................

356

Control-panel messages ..................................................................................................................

357

Event log messages .........................................................................................................................

422

Print an event log .............................................................................................................

422

Show an event log ...........................................................................................................

422

Sample event log .............................................................................................................

423

Clear the event log ...........................................................................................................

423

Event log message ..........................................................................................................

424

Paper-handling problems .................................................................................................................

428

Jams ................................................................................................................................

428

ENWW

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