Mac OS 9 ..........................................................................................................................57
Mac OS X .........................................................................................................................58
Printing on both sides of the paper (manual two-sided printing) ............................................59
Manual two-sided printing using the top output bin ..........................................................59
Manual two-sided printing using the straight-through output door ...................................61
Printing multiple pages on a single sheet of paper (N-up printing) .........................................65
Printing booklets ......................................................................................................................66
Printing watermarks ................................................................................................................67
5 Maintenance
Cleaning the printer .................................................................................................................70
Cleaning the print cartridge area ......................................................................................70
Cleaning the printer media path .......................................................................................72
Changing the pickup roller ......................................................................................................73
Cleaning the pickup roller ........................................................................................................79
Changing the printer separation pad .......................................................................................80
6 Problemsolving
Finding the solution .................................................................................................................84
Step 1: Is the printer set up correctly? ..............................................................................84
Step 2: Is the Ready light on? ..........................................................................................84
Step 3: Can you print a demo page? ................................................................................84
Step 4: Is the print quality acceptable? ............................................................................85
Step 5: Is the printer communicating with the computer? ................................................85
Step 6: Does the printed page look like you expected? ...................................................85
Contact HP support ..........................................................................................................86
Status light patterns ................................................................................................................87
Common Macintosh problems ................................................................................................93
Troubleshooting PostScript (PS) errors ..................................................................................97
Paper handling problems ........................................................................................................98
Paper jam .........................................................................................................................98
Print is skewed (crooked) .................................................................................................98
More than one sheet of media feeds through the printer at one time ..............................98
Printer does not pull media from the media input tray ......................................................99
Printer curled the media ...................................................................................................99
Printed media does not exit to the correct path ................................................................99
Print job is extremely slow ................................................................................................99
Printed page is different than what appeared on screen ......................................................100
Garbled, incorrect, or incomplete text ............................................................................100
Missing graphics or text, or blank pages ........................................................................100
Page format is different than on another printer .............................................................101
Graphics quality ..............................................................................................................101
Printer software problems .....................................................................................................102
Improving print quality ...........................................................................................................103
Light print or faded ..........................................................................................................103
Toner specks ..................................................................................................................103
Dropouts .........................................................................................................................104
Vertical lines ...................................................................................................................104
Gray background ............................................................................................................104
Toner smear ...................................................................................................................105
Loose toner .....................................................................................................................105
Vertical repetitive defects ...............................................................................................105
Misformed characters .....................................................................................................106
Page skew ......................................................................................................................106
Curl or wave ....................................................................................................................106
ENWW v
