Xerox 6250N Service Manual - Page 170
Fault Isolation, Inoperable Printer Troubleshooting, Engine Power-Up Sequence
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Fault Isolation Isolate a fault to the Printer or to the Image Processor Board by running the Print Engine Test Print, see page 5-9. ■ If the printer sucessfully prints the Print Engine Test Print, replace the Image Processor Board. ■ If the Printer fails the Print Engine Test, troubleshoot the Print Engine starting with the "AC Power Supply Troubleshooting" on page 4-11. Inoperable Printer Troubleshooting Engine Power-Up Sequence 1. Engine Control Board logic check 2. Imaging Unit (Missing, NVRAM (CRUM) Error, CRUM ID, Life Over) 3. Fuser (Missing, NVRAM(CRUM) Error, Life Over) 4. Toner Cartridge (Missing, Life Over) 5. Transfer Roller (Missing, Life Over) 6. CTD Sensor (Error) 7. All paper sensor (Jam) 8. OHP sensor (Jam) 9. Door(s) (Open) 10. Environment Sensor (Error) 11. NVRAM (NVRAM error) 12. Image Processor Board POST Diagnostic check Printer Does Not Come to a "Ready" State ■ ·See "AC Power Supply Troubleshooting" on page 4-11. ■ See "Fault Isolation" on page 4-9 General Troubleshooting 4-9
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