Troubleshooting
This chapter describes how to isolate and resolve printer problems, image problems, and
media problems. Troubleshooting details are provided to resolve problems or to isolate
replaceable parts.
Basic troubleshooting..............................................................................................................82
Control panel power-on functions...........................................................................................84
Power-on Functions: Time Ranges..................................................................................84
Control Panel Pages............................................................................................................... 86
Control Panel Pages: Time Ranges.................................................................................86
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
ENWW 81
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