Replacing and recycling supplies ...................................................................................... 65
Redistribute toner .............................................................................................................. 65
HP policy on non-HP supplies ........................................................................................... 65
HP fraud hotline ................................................................................................................. 66
Cleaning the device ............................................................................................................................ 67
To clean the exterior .......................................................................................................... 67
To clean the scanner glass ................................................................................................ 67
To clean the lid backing ..................................................................................................... 67
To clean the paper path ..................................................................................................... 68
Changing the print cartridge ............................................................................................................... 69
9 Problem solving
Problem-solving checklist ................................................................................................................... 72
Clearing jams ..................................................................................................................................... 74
Causes of jams .................................................................................................................. 74
Tips to avoid jams ............................................................................................................. 74
Where to look for jams ....................................................................................................... 75
Input trays .......................................................................................................................... 76
Output bin .......................................................................................................................... 78
Print-cartridge area ............................................................................................................ 78
Control-panel messages .................................................................................................................... 80
Alert and warning messages ............................................................................................ 80
Alert and warning message tables .................................................................... 80
Critical error messages ...................................................................................................... 81
Critical error message tables ............................................................................ 81
Print problems .................................................................................................................................... 83
Print quality problems ........................................................................................................ 83
Improving print quality ....................................................................................... 83
Understanding print-quality settings ................................................. 83
Identifying and correcting print defects ............................................................. 84
Print-quality checklist ........................................................................ 84
General print-quality issues .............................................................. 84
Media-handling problems .................................................................................................. 88
Print-media guidelines ....................................................................................... 88
Solving print-media problems ............................................................................ 89
Performance problems ...................................................................................................... 90
Copy problems ................................................................................................................................... 91
Preventing problems .......................................................................................................... 91
Image problems ................................................................................................................. 91
Media-handling problems .................................................................................................. 92
Performance problems ...................................................................................................... 94
Scan problems ................................................................................................................................... 95
Solving scanned-image problems ...................................................................................... 95
vi ENWW