Print and interpret the print quality page ................................................................................................... 113
Resolving print quality problems ...................................................................................................................................... 115
Introduction ...................................................................................................................................................... 115
Troubleshoot print quality problems ........................................................................................................... 115
Improve copy and scan image quality .............................................................................................................................. 123
Introduction ...................................................................................................................................................... 123
Check the scanner glass for dirt and smudges .......................................................................................... 123
Eliminate lines or streaks when using the document feeder .................................................................. 124
Check the paper settings ............................................................................................................................... 124
Check the image adjustment settings ......................................................................................................... 125
Optimize for text or pictures ......................................................................................................................... 127
Check the scanner resolution and color settings on the computer ........................................................ 128
Resolution and color guidelines ............................................................................................... 128
Color .............................................................................................................................................. 129
Edge-to-edge copying .................................................................................................................................... 129
Clean the pickup rollers and separation pad in the document feeder (fw models only) ..................... 130
Improve fax image quality .................................................................................................................................................. 131
Introduction ...................................................................................................................................................... 131
Check the scanner glass for dirt and smudges .......................................................................................... 131
Check the send-fax resolution settings ....................................................................................................... 131
Check the error-correction settings ............................................................................................................. 132
Check the t-to-page setting ........................................................................................................................ 132
Send to a dierent fax machine .................................................................................................................... 132
Check the sender's fax machine ................................................................................................................... 132
Solve wired network problems .......................................................................................................................................... 133
Introduction ...................................................................................................................................................... 133
Poor physical connection ............................................................................................................................... 133
The computer is unable to communicate with the printer ....................................................................... 133
The printer is using incorrect link and duplex settings for the network ................................................. 134
New software programs might be causing compatibility problems ....................................................... 134
The computer or workstation might be set up incorrectly ....................................................................... 134
The printer is disabled, or other network settings are incorrect ............................................................. 134
Solve wireless network problems (wireless models only) ............................................................................................ 135
Introduction ...................................................................................................................................................... 135
Wireless connectivity checklist ...................................................................................................................... 135
The printer does not print after the wireless conguration completes ................................................. 136
The printer does not print, and the computer has a third-party rewall installed ............................... 136
The wireless connection does not work after moving the wireless router or printer .......................... 136
Cannot connect more computers to the wireless printer ......................................................................... 136
The wireless printer loses communication when connected to a VPN ................................................... 137
The network does not appear in the wireless networks list .................................................................... 137
ENWW vii
