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Diagnostic Aids 3-1
5055-01x
3. Diagnostic Aids
Note: When trouble shooting, or prior to making any adjustment to
print quality, always be sure of the following:
• The printer is installed on a level rigid surface.
• The OPCs are never exchanged. Do not exchange a black OPC
for a color OPC, as they have different surface phase counts.
• Radar Page is always used when adjusting print registration.
Power-On Self Test Sequence
1. Power on.
2. Printer and RIP controller check:
• ROM and RAM
• Fuser thermistor
3. Printer hardware check:
• Paper jam
• Printer cartridge unit
• Toner supply
• Paper cassette present
4. Fuser temperature check. Temperature regulated.
5. Ready:
• Printer controller
• RIP controller
• Printer condition
• Motor/Fan
• Heater
6. DC motor drive 1
7. Feeding paper
8. Print
9. Stepper motor drive 2
10. Paper exit
11. Stop
Service.bk Page 1 Thursday, October 4, 2001 12:20 PM