10 Contents
Admin Settings ...............................................................................................282
Default Settings..............................................................................................321
Tray Management ..........................................................................................332
Panel Language .............................................................................................337
Panel Lock Function ............................................................................... 338
Enabling the Panel Lock ................................................................................338
Disabling the Panel Lock................................................................................338
Limiting Access to Copy, Fax, Scan, and Print from USB Operations ... 339
Changing the Language ......................................................................... 340
Setting the Energy Saver Option ............................................................ 341
About the Concurrent Jobs Feature ....................................................... 342
Resetting to Factory Defaults ................................................................. 343
Entering Characters................................................................................ 344
Using the Keyboard Displayed on the Operator Panel ..................................344
Using the Number Pad...................................................................................344
10 Troubleshooting .....................................................................345
Clearing Jams......................................................................................... 346
Avoiding Jams................................................................................................346
Identifying the Location of Paper Jams ..........................................................347
Clearing Paper Jams From the DADF ...........................................................348
Clearing Paper Jams From the Bypass Tray .................................................350
Clearing Paper Jams From the Standard 550 Sheet Tray .............................352
Clearing Paper Jams From the Fusing Unit ...................................................355
Clearing Paper Jams From the Optional 550 Sheet Feeder ..........................359
Jam Problems ................................................................................................361
Basic Printer Problems ........................................................................... 365
Display Problems.................................................................................... 366
Printing Problems ................................................................................... 367
Print Quality Problems............................................................................ 369
The Output Is Too Light .................................................................................370
Toner Smears or Print Comes Off..................................................................371
Random Spots/Blurred Images ......................................................................372
The Entire Output Is Blank .............................................................................373
Streaks Appear on the Output........................................................................374
Part or the Entire Output Is Black...................................................................374
Pitched Color Dots .........................................................................................375
Vertical Blanks ...............................................................................................376
Mottle .............................................................................................................376
Ghosting.........................................................................................................377
Light-Induced Fatigue ....................................................................................377
Fog .................................................................................................................378
Bead-Carry-Out (BCO)...................................................................................378
Jagged Characters.........................................................................................379
Banding ..........................................................................................................380
Auger Mark.....................................................................................................380
Wrinkled/Stained Paper .................................................................................381
Damage on the Leading Edge of Paper...............................
..........................382