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
xi