Image problems ............................................................................................................... 127 Media-handling problems ................................................................................................ 128 Performance problems .................................................................................................... 130 Functional checks ............................................................................................................................. 131 Engine test page ..............................................................................................................
131 Drum rotation test ............................................................................................................ 131 Half self-test functional check .......................................................................................... 132 Perform a half self-test check .......................................................................... 132 Perform other checks ..................................................................................... 132 Heating element check ....................................................................................................
133 High-voltage contacts check ............................................................................................ 133 Check the print-cartridge contacts ................................................................ 133 Check the high-voltage connector assembly .................................................. 134 Service-mode functions .................................................................................................................... 135 NVRAM initialization ........................................................................................................
135 Super NVRAM initialization .............................................................................................. 135 Secondary service menu ................................................................................................. 135 Problem-solving tools ....................................................................................................................... 137 Product information pages and reports ............................................................................ 137 Configuration page ..........................................................................................
137 Demo page ...................................................................................................... 137 Menu map ........................................................................................................................ 137 Service menu ................................................................................................................... 138 Restore the factory-set defaults ...................................................................... 138 Clean the paper path .......................................................................................
138 Archive print .................................................................................................... 138 Problem-solving diagrams ................................................................................................................ 140 Repetitive image defects ................................................................................................. 140 Interface ports .................................................................................................................. 141 Formatter connectors .......................................................................................................
142 ECU connectors ............................................................................................................... 143 Solenoid and motor .......................................................................................................... 144 Rollers .............................................................................................................................. 145 Sensors ............................................................................................................................ 146 Major components ...........................................................................................................
147 PCAs (base unit) .............................................................................................................. 148 Circuit diagram ................................................................................................................. 149 Firmware updates ............................................................................................................................. 150 7 Parts Ordering information .........................................................................................................................
152 Supplies and hinge tool .................................................................................................................... 152 Cable and interface accessories ...................................................................................................... 152 Whole-unit replacement ................................................................................................................... 153 Control-panel overlays .....................................................................................................................
157 Supplementry documentation and support ....................................................................................... 160 Parts lists and diagrams ................................................................................................................... 162 Types of screws ............................................................................................................... 163 Scanner assemblies .........................................................................................................................
164 Assemblies ....................................................................................................................................... 166 vi ENWW