Control Panel Lights................................................................................................................87 Control Panel Light Patterns.............................................................................................87 Fatal Errors.......................................................................................................................91 Image troubleshooting............................................................................................................92 Print cartridge problems...................................................................................................92 Solving image-quality problems .......................................................................................92 Solving paper-feed problems..................................................................................................99 Solving print paper-feed problems....................................................................................99 Functional checks.................................................................................................................103 Half self-test functional check.........................................................................................103 Drum rotation functional check ......................................................................................105 High-voltage contacts check...........................................................................................105 Troubleshooting tools ...........................................................................................................107 Repetitive image defect ruler..........................................................................................107 Circuit diagram ..............................................................................................................108 Solenoid, sensors, and switches...........................................................................................109 7 Parts and diagrams Ordering parts and supplies .................................................................................................112 Parts ..............................................................................................................................
112 Related documentation and software ............................................................................112 Parts that wear .............................................................................................................112 Accessories and consumables ............................................................................................113 Common hardware ........................................................................................................114 How to use the parts lists and diagrams ........................................................................114 Field-replaceable units .........................................................................................................115 Alphabetical parts list............................................................................................................118 Numerical parts list...............................................................................................................119 Index ENWW v