Check the scanner glass for dirt and smudges .......................................................................................... 170
Check the paper settings ............................................................................................................................... 171
Optimize for text or pictures ......................................................................................................................... 172
Edge-to-edge copying .................................................................................................................................... 173
Clean the pickup rollers and separation pad in the document feeder .................................................... 173
Improve fax image quality .................................................................................................................................................. 175
Introduction ...................................................................................................................................................... 175
Check the scanner glass for dirt and smudges .......................................................................................... 175
Check the send-fax resolution settings ....................................................................................................... 176
Check the error-correction settings ............................................................................................................. 177
Check the t-to-page setting ........................................................................................................................ 179
Clean the pickup rollers and separation pad in the document feeder .................................................... 180
Send to a dierent fax machine .................................................................................................................... 181
Check the sender's fax machine ................................................................................................................... 181
Solve wired network problems .......................................................................................................................................... 182
Introduction ...................................................................................................................................................... 182
Poor physical connection ............................................................................................................................... 182
The computer is using the incorrect IP address for the printer ............................................................... 182
The computer is unable to communicate with the printer ....................................................................... 182
The printer is using incorrect link speed and duplex settings for the network ..................................... 183
New software programs might be causing compatibility problems ....................................................... 183
The computer or workstation might be set up incorrectly ....................................................................... 183
The printer is disabled, or other network settings are incorrect ............................................................. 183
Solve wireless network problems ..................................................................................................................................... 184
Introduction ...................................................................................................................................................... 184
Wireless connectivity checklist ...................................................................................................................... 184
The printer does not print after the wireless conguration completes ................................................. 185
The printer does not print, and the computer has a third-party rewall installed ............................... 185
The wireless connection does not work after moving the wireless router or printer .......................... 185
Cannot connect more computers to the wireless printer ......................................................................... 185
The wireless printer loses communication when connected to a VPN ................................................... 186
The network does not appear in the wireless networks list .................................................................... 186
The wireless network is not functioning ..................................................................................................... 186
Perform a wireless network diagnostic test ............................................................................................... 186
Reduce interference on a wireless network ................................................................................................ 187
Solve fax problems .............................................................................................................................................................. 188
Introduction ...................................................................................................................................................... 188
Fax troubleshooting checklist ....................................................................................................................... 188
Solve general fax problems ........................................................................................................................... 189
Faxes are sending slowly ........................................................................................................... 189
Fax quality is poor ...................................................................................................................... 190
ENWW ix
