Introduction ...................................................................................................................................................... 132
Check the scanner glass for dirt and smudges .......................................................................................... 132
Eliminate lines or streaks when using the document feeder .................................................................. 133
Check the paper settings ............................................................................................................................... 133
Check the image adjustment settings ......................................................................................................... 133
Optimize for text or pictures ......................................................................................................................... 134
Check the scanner resolution and color settings on the computer ........................................................ 134
Resolution and color guidelines ............................................................................................... 134
Color .............................................................................................................................................. 135
Edge-to-edge copying .................................................................................................................................... 135
Clean the pickup rollers and separation pad in the document feeder .................................................... 136
Improve fax image quality .................................................................................................................................................. 137
Introduction ...................................................................................................................................................... 137
Check the scanner glass for dirt and smudges .......................................................................................... 137
Check the send-fax resolution settings ....................................................................................................... 138
Check the error-correction settings ............................................................................................................. 138
Check the t-to-page setting ........................................................................................................................ 138
Clean the pickup rollers and separation pad in the document feeder .................................................... 139
Send to a dierent fax machine .................................................................................................................... 140
Check the sender's fax machine ................................................................................................................... 140
Solve wired network problems .......................................................................................................................................... 141
Introduction ...................................................................................................................................................... 141
Poor physical connection ............................................................................................................................... 141
The computer is unable to communicate with the printer ....................................................................... 141
The printer is using incorrect link and duplex settings for the network ................................................. 142
New software programs might be causing compatibility problems ....................................................... 142
The computer or workstation might be set up incorrectly ....................................................................... 142
The printer is disabled, or other network settings are incorrect ............................................................. 142
Solve wireless network problems ..................................................................................................................................... 143
Introduction ...................................................................................................................................................... 143
Wireless connectivity checklist ...................................................................................................................... 143
The printer does not print after the wireless conguration completes ................................................. 144
The printer does not print, and the computer has a third-party rewall installed ............................... 144
The wireless connection does not work after moving the wireless router or printer .......................... 144
Cannot connect more computers to the wireless printer ......................................................................... 144
The wireless printer loses communication when connected to a VPN ................................................... 145
The network does not appear in the wireless networks list .................................................................... 145
The wireless network is not functioning ..................................................................................................... 145
Perform a wireless network diagnostic test ............................................................................................... 145
Reduce interference on a wireless network ................................................................................................ 145
Solve fax problems .............................................................................................................................................................. 147
viii ENWW
