Half self-test functional check ......................................................... 119
Diagrams ......................................................................................................................... 120
Plug/jack locations .......................................................................................... 120
Location of connectors .................................................................................... 121
Locations of major components ...................................................................... 122
General timing charts ...................................................................................... 125
General circuit diagram ................................................................................... 126
Internal print-quality test pages ........................................................................................ 127
Cleaning page ................................................................................................. 127
Configuration page .......................................................................................... 127
Print-quality troubleshooting tools .................................................................................... 128
Repetitive defect ruler ..................................................................................... 128
Interpret control-panel light patterns ................................................................................ 128
Clear jams ........................................................................................................................................ 133
Common causes of jams ................................................................................................. 133
Jam locations ................................................................................................................... 133
Clear jams from the input trays ........................................................................................ 134
Clear jams from the duplexer ........................................................................................... 136
Clear jams from the output areas .................................................................................... 138
Clear jams from inside the product .................................................................................. 139
Solve repeated jams ........................................................................................................ 141
Change jam recovery ...................................................................................................... 142
Solve paper-handling problems ........................................................................................................ 143
Solve image-quality problems .......................................................................................................... 144
Image defect table ........................................................................................................... 144
Light print or faded .......................................................................................... 144
Toner specks ................................................................................................... 144
Dropouts .......................................................................................................... 145
Vertical lines .................................................................................................... 145
Gray background ............................................................................................. 145
Toner smear .................................................................................................... 146
Loose toner ..................................................................................................... 146
Vertical repetitive defects ................................................................................ 146
Misformed characters ...................................................................................... 146
Page skew ....................................................................................................... 147
Curl or wave .................................................................................................... 147
Wrinkles or creases ......................................................................................... 147
Toner scatter outline ....................................................................................... 148
Moisture .......................................................................................................... 148
Change print density ........................................................................................................ 149
Clean the product ............................................................................................................................. 150
Clean the pickup roller ..................................................................................................... 150
Clean the paper path ....................................................................................................... 151
Clean the print-cartridge area .......................................................................................... 153
viii ENWW
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