Copy print-quality problems ............................................................................................................. 93 Color image defects .......................................................................................................................... 88 Scan-quality problems ...................................................................................................................... 94 Prevent scan-quality problems ...................................................................................... 94 Solve scan-quality problems ..........................................................................................
94 Clean the product ................................................................................................................................................ 95 Print a cleaning page ......................................................................................................................... 95 Check the scanner glass for dirt and smudges ................................................................................. 95 Clean the pickup rollers and separation pad in the document feeder .............................................
96 Solve performance problems .............................................................................................................................. 97 Solve connectivity problems ............................................................................................................................... 98 Solve direct-connect problems ......................................................................................................... 98 Solve wired network problems .........................................................................................................
98 Poor physical connection ................................................................................................ 98 The computer is using the incorrect IP address for the product ................................... 98 The computer is unable to communicate with the product ........................................... 99 The product is using incorrect link and duplex settings for the network ...................... 99 New software programs might be causing compatibility problems ............................. 99 The computer or workstation might be set up incorrectly ............................................
99 The product is disabled, or other network settings are incorrect ................................. 99 Solve wireless network problems .................................................................................................... 99 Wireless connectivity checklist .................................................................................... 100 The product does not print after the wireless configuration completes .................... 100 The product does not print, and the computer has a third-party firewall installed ...
101 The wireless connection does not work after moving the wireless router or product .......................................................................................................................... 101 Cannot connect more computers to the wireless product .......................................... 101 The wireless product loses communication when connected to a VPN ...................... 101 The network does not appear in the wireless networks list ....................................... 101 The wireless network is not functioning ......................................................................
101 Perform a wireless network diagnostic test ................................................................ 102 Reduce interference on a wireless network ................................................................ 102 Service mode functions ..................................................................................................................................... 103 Secondary service menu ................................................................................................................. 103 Open the secondary service menu ...............................................................................
103 Secondary service menu structure .............................................................................. 103 Product resets ................................................................................................................................. 105 Restore factory settings ............................................................................................... 105 NVRAM initialization ..................................................................................................... 105 Solve fax problems ............................................................................................................................................
106 Check the hardware setup .............................................................................................................. 106 viii ENWW