HP Color LaserJet Pro M479 User Guide

Resolving print quality problems....................................................................................................................................................113
Introduction...............................................................................................................................................................................113
Troubleshoot print quality ......................................................................................................................................................114
Update the printer rmware..........................................................................................................................................114
Print from a dierent software program.....................................................................................................................114
Check the paper-type setting for the print job ...........................................................................................................114
Check the paper type setting on the control panel...........................................................................................114
Check the paper type setting (Windows)............................................................................................................115
Check the paper type setting (macOS)................................................................................................................115
Check toner-cartridge status.........................................................................................................................................115
Step one: Print a supplies status page................................................................................................................115
Step two: Check supplies status ..........................................................................................................................116
Print a cleaning page ......................................................................................................................................................116
Visually inspect the toner cartridge or cartridges ......................................................................................................116
Check paper and the printing environment ................................................................................................................117
Step one: Use paper that meets HP specications ...........................................................................................117
Step two: Check the environment........................................................................................................................117
Step three: Set the individual tray alignment ....................................................................................................117
Try a dierent print driver..............................................................................................................................................118
Troubleshoot color quality.............................................................................................................................................118
Calibrate the printer to align the colors ..............................................................................................................118
Adjust color settings (Windows)...........................................................................................................................119
Print and interpret the print quality page...........................................................................................................119
Check the EconoMode settings.....................................................................................................................................120
Adjust print density .........................................................................................................................................................120
Troubleshoot image defects...................................................................................................................................................121
Improve copy and scan image quality............................................................................................................................................129
Introduction...............................................................................................................................................................................129
Check the scanner glass for dirt and smudges ...................................................................................................................129
Check the paper settings ........................................................................................................................................................129
Check the image adjustment settings ..................................................................................................................................130
Optimize for text or pictures...................................................................................................................................................130
Check the scanner resolution and color settings on the computer .................................................................................130
Resolution and color guidelines....................................................................................................................................131
Color...................................................................................................................................................................................131
Edge-to-edge copying.............................................................................................................................................................132
Clean the pickup rollers and separation pad in the document feeder.............................................................................132
Improve fax image quality ...............................................................................................................................................................133
Introduction...............................................................................................................................................................................133
Check the scanner glass for dirt and smudges ...................................................................................................................133
Check the send-fax resolution settings................................................................................................................................134
Check the Error Correction Mode setting..............................................................................................................................134
Send to a dierent fax machine.............................................................................................................................................134
Check the sender's fax machine ............................................................................................................................................134
Solve wired network problems .......................................................................................................................................................135
Introduction...............................................................................................................................................................................135
Poor physical connection ........................................................................................................................................................135
The computer is using the incorrect IP address for the printer ........................................................................................135
The computer is unable to communicate with the printer ................................................................................................135
The printer is using incorrect link and duplex settings for the network..........................................................................136
New software programs might be causing compatibility problems................................................................................136
The computer or workstation might be set up incorrectly................................................................................................136
The printer is disabled, or other network settings are incorrect ......................................................................................136
Solve wireless network problems...................................................................................................................................................136
Introduction...............................................................................................................................................................................136
ix