Xerox 7700DX Service Manual - Page 93
ERROR 44 FUSER SUB LAMP FAILURE, Error, Chain, Front Panel Message
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Error Code Chain / Link Front Panel Message 44 10-350 ERROR 44 FUSER SUB LAMP FAILURE Note If this failure reoccurs three times successively, an Engine NVRAM value is set preventing further printer use until the Clear Tech Rep Fault, Clear is run. Switch printer power OFF. Remove the Fuser Assembly. Warning Fuser may be very hot. Use extreme caution to prevent burns. Measure the resistance between the Fuser Assembly connector P600-7 (see figure page 2-47) and P600-9 (see figure page 2-47). Does the resistance measure between 20K and 100K ohms? Yes No Replace the Fuser Assembly. Reinstall Fuser. Remove the Rear Cover (RRP 1, on page 7-154), Rear Shield (RRP 9, on page 7-163) and the Rear Shield Bracket (RRP 10, on page 7-164). Measure the resistance between P404A-3 (see figure page 2-46) and P404A-4 (see figure page 2-46) on the Engine Control Board. Does the resistance measure between 20K and 100K ohms? Yes No Repair or replace the wiring harness between the Engine Control Board and the Fuser. Replace the Engine Control Board (RRP 42, on page 7-206). 45 10-351 ERROR 45 FUSER STS (REAR) FAILURE Switch printer power OFF. Remove the Fuser Assembly. Warning Fuser may be very hot. Use extreme caution to prevent burns. Measure the resistance between the Fuser Assembly connector P600- (see figure page 2-47)7 and P600-9 (see figure page 2-47). Does the resistance measure between 20K and 100K ohms? Yes No Replace the Fuser Assembly. Reinstall Fuser. Remove the Rear Cover (RRP 1, on page 7-154), Rear Shield (RRP 9, on page 7-163) and the Rear Shield Bracket (RRP 10, on page 7-164). Measure the resistance between P404A-3 (see figure page 2-46) and P404A-4 (see figure page 2-46) on the Engine Control Board. Does the resistance measure between 20K and 100K ohms? Yes No Repair or replace the wiring harness between the Engine Control Board and the Fuser. Replace the Engine Control Board (RRP 42, on page 7-206). Phaser 7700 Color Laser Printer Service Manual 2-63