Xerox 7700DX Service Manual - Page 108
Finisher Error 118 Stapler Front Corner Sensor, On Failure, Finisher Error 119 Stapler Front Corner
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Error Code Chain / Link Front Panel Message 118 12-256 FINISHER ERROR 118 STAPLER FRONT CORNER SENSOR ON FAILURE (Continued) 119 12-257 FINISHER ERROR 119 STAPLER FRONT CORNER SENSOR OFF FAILURE (Continued) ABC Does the voltage toggle between +5 VDC and 0 VDC? Yes No Measure the voltage at Front Corner Sensor pin 1 (gray). Does the voltage measure +5 VDC? Yes No Measure the voltage between the Finisher Control Board P850A-3 and Finisher frame ground. Does the voltage measure +5 VDC? Yes No Replace the Finisher Control Board (RRP 77, on page 11-336). Repair or replace the wiring harness between the Finisher Control Board and the Front Corner Sensor. Measure the voltage at the Front Corner Sensor pin 3 (violet) and Finisher frame ground. Does the voltage measure 0 VDC? Yes No Measure the voltage between the Finisher Control Board P850A-1 and Finisher frame ground. Does the voltage measure 0 VDC? Yes No Replace the Finisher Control Board (RRP 77, on page 11-336). Repair or replace the wiring harness between the Finisher Control Board and the Front Corner Sensor. Replace the Front Corner Sensor. Repair or replace the wiring harness between the Finisher Control Board and the Front Corner Sensor. Replace the Finisher Control Board (RRP 77, on page 11-336). Replace the Finisher Control Board (RRP 77, on page 11-336). 2-78 Phaser 7700 Color Laser Printer Service Manual
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