Replacing and recycling supplies
.......................................................................................
285
HP policy on non-HP supplies
............................................................................................
285
Resetting the all-in-one for non-HP supplies (HP LaserJet 3390/3392 all-in-
one)
....................................................................................................................
285
HP fraud hotline
..................................................................................................................
285
Cleaning the all-in-one
.........................................................................................................................
287
To clean the exterior
...........................................................................................................
287
To clean the scanner glass and white platen (HP LaserJet 3050 all-in-one)
.....................
287
To clean the scanner glass (HP LaserJet 3052/3055/3390/3392 all-in-one)
.....................
288
To clean the lid backing (HP LaserJet 3052/3055/3390/3392 all-in-one)
..........................
289
To clean the automatic document feeder (ADF) pickup roller assembly (HP LaserJet
3052/3055/3390/3392 all-in-one)
........................................................................................
290
Cleaning the paper path
.....................................................................................................
293
To clean the paper path from HP ToolboxFX
....................................................
293
To clean the paper path from the all-in-one control panel
.................................
294
Changing the print cartridge
................................................................................................................
295
Changing the automatic document feeder (ADF) on the HP LaserJet 3390/3392 all-in-one
.............
297
Changing the automatic document feeder (ADF) pickup roller and load arm assembly
(HP LaserJet 3052/3055/3390/3392 all-in-one)
..................................................................................
299
13
Troubleshooting
Troubleshooting checklist
....................................................................................................................
304
Clearing jams
.......................................................................................................................................
308
Causes of jams
...................................................................................................................
308
Tips to avoid jams
..............................................................................................................
308
Where to look for jams
........................................................................................................
309
Print cartridge area
.............................................................................................................
309
Input trays (HP LaserJet 3050/3052/3055 all-in-one)
.........................................................
311
Input trays (HP LaserJet 3390/3392 all-in-one)
..................................................................
312
Output bin
...........................................................................................................................
315
Straight-through output path (HP LaserJet 3390/3392 all-in-one)
.....................................
315
Automatic two-sided printing (duplexing) path (HP LaserJet 3390/3392 all-in-one)
..........
317
Jams occur in the automatic document feeder (ADF)
........................................................
320
Control-panel messages
......................................................................................................................
323
Alert and warning messages
.............................................................................................
323
Alert and warning message tables
.....................................................................
323
Critical error messages
.......................................................................................................
330
Critical error message-tables
.............................................................................
330
Print problems
......................................................................................................................................
332
Print quality problems
.........................................................................................................
332
Improving print quality
........................................................................................
332
Understanding print-quality settings
..................................................
332
To temporarily change print-quality settings
.....................
332
To change print-quality settings for all future jobs
............
332
Identifying and correcting print defects
..............................................................
333
Print-quality checklist
.........................................................................
333
General print-quality issues
...............................................................
333
Media-handling problems
...................................................................................................
337
Print-media guidelines
........................................................................................
338
Solving print-media problems
............................................................................
338
ENWW
xiii