Half self-test functional check............................................................................................124 To perform a half self-test check.......................................................................124 To perform other checks...................................................................................124 Drum-rotation functional check .........................................................................................126 High-voltage-contacts check..............................................................................................127 To check the print-cartridge contacts ..............................................................127 To check the printer high-voltage contacts ......................................................128 Troubleshooting tools.........................................................................................................................129 Repetitive-image-defect ruler.............................................................................................129 Circuit diagram ..................................................................................................................130 Solenoid, sensors, switches, and motor.............................................................................................131 7 Parts and diagrams Ordering parts and supplies...............................................................................................................134 Parts..................................................................................................................................134 Related documentation and software................................................................................134 Parts that wear ..................................................................................................................134 Accessories and consumables...........................................................................................................135 Accessories.......................................................................................................................135 Common hardware ...........................................................................................................137 How to use the parts lists and diagrams............................................................................137 Printer exchange/parts.......................................................................................................................138 Major components..............................................................................................................................140 Alphabetical parts list.........................................................................................................................143 Numerical parts list.............................................................................................................................146 Index...................................................................................................................................................................149 vi ENWW