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Phaser 480 Color Printer
6
Troubleshooting
System power-up sequence 6-1
Print engine troubleshooting 6-2
Verifying image processor operation by using the Test Pattern Generator 6-2
Verifying print engine operation by using its self-test print 6-3
Verifying power supply operation 6-4
Measuring AC supply voltage 6-4
Inspecting the power supply fuses 6-4
Determining if the image processor is overloading the engine 6-4
Media jams and the paper path 6-5
Media-based problems 6-5
Paper-pick errors 6-5
Paper-clamping errors 6-6
Print-eject jams 6-7
Checking the paper-feed and drive train 6-7
Media skews passing through the paper path 6-7
Transfer roll jam 6-7
Printing and print quality problems 6-8
Streaks or lines
parallel to the long axis of printing 6-8
Not printing 6-9
Printing too light or too dark 6-9
Image is offset or cut off 6-10
Wrinkling 6-10
Misregistration 6-10
Problems and solutions 6-11
Print engine error conditions and their causes 6-11
Power problems 6-12
Front panel indicators 6-12
Macintosh printing problems 6-13
PC DOS printing problems 6-14
Windows printing problems 6-15
Workstation printing problems 6-16
Image processor 6-17
Image processor normal indicators 6-17
Image processor hard and soft error indicators 6-17
Verifying the image processor's operation 6-17
Image processor self-diagnostics 6-18
Image processor rear panel switches for self-testing 6-18
Printing the configuration page 6-19
Rear panel switches (diagnostics) 6-19
Resetting NVRAM 6-20
