Improve copy and scan image quality .............................................................................................................. 169
Introduction ..................................................................................................................................... 169
Check the scanner glass for dirt and smudges ............................................................................... 169
Check the paper settings ................................................................................................................ 170
Optimize for text or pictures .......................................................................................................... 171
Edge-to-edge copying .................................................................................................................... 172
Clean the pickup rollers and separation pad in the document feeder ........................................... 172
Improve fax image quality ................................................................................................................................ 174
Introduction ..................................................................................................................................... 174
Check the scanner glass for dirt and smudges ............................................................................... 174
Check the send-fax resolution settings ......................................................................................... 175
Check the error-correction settings ............................................................................................... 176
Check the fit-to-page setting ......................................................................................................... 177
Clean the pickup rollers and separation pad in the document feeder ........................................... 178
Send to a different fax machine ..................................................................................................... 179
Check the sender's fax machine ..................................................................................................... 179
Solve wired network problems ......................................................................................................................... 180
Introduction ..................................................................................................................................... 180
Poor physical connection ................................................................................................................ 180
The computer is using the incorrect IP address for the printer ..................................................... 180
The computer is unable to communicate with the printer ............................................................ 180
The printer is using incorrect link speed and duplex settings for the network ............................. 181
New software programs might be causing compatibility problems ............................................. 181
The computer or workstation might be set up incorrectly ............................................................ 181
The printer is disabled, or other network settings are incorrect ................................................... 181
Solve wireless network problems ..................................................................................................................... 182
Introduction ..................................................................................................................................... 182
Wireless connectivity checklist ....................................................................................................... 182
The printer does not print after the wireless configuration completes ........................................ 183
The printer does not print, and the computer has a third-party firewall installed ....................... 183
The wireless connection does not work after moving the wireless router or printer ................... 183
Cannot connect more computers to the wireless printer .............................................................. 183
The wireless printer loses communication when connected to a VPN .......................................... 184
The network does not appear in the wireless networks list .......................................................... 184
The wireless network is not functioning ........................................................................................ 184
Perform a wireless network diagnostic test .................................................................................. 184
Reduce interference on a wireless network ................................................................................... 185
Solve fax problems ............................................................................................................................................ 186
Introduction ..................................................................................................................................... 186
Fax troubleshooting checklist ........................................................................................................ 186
Solve general fax problems ............................................................................................................ 187
ENWW ix
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