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