Xerox 7700DX Service Manual - Page 114
Finisher Error 123 Set Clamp Failure, Finisher Error 124 Communication Failure, Finisher Error 125
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Error Code Chain / Link 123 12-281 ABCD Front Panel Message FINISHER ERROR 123 SET CLAMP FAILURE (Continued) Measure the voltage at the Set Clamp Sensor pin 3 (violet) and Finisher frame ground. Does the voltage measure 0 VDC? Yes No Measure the voltage between the Finisher Control Board P849-7 (see figure page 2-46) 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 Set Clamp Sensor. Replace the Set Clamp Sensor (RRP 75, on page 11-334). Repair or replace the wiring harness between the Finisher Control Board and the Set Clamp Sensor. Replace the Finisher Control Board (RRP 77, on page 11-336). Replace the Finisher Control Board (RRP 77, on page 11-336). 124 12-350 FINISHER ERROR 124 COMMUNICATION FAILURE There are no diagnostics routines or test procedures for problems involving serial communications. It is recommended to address the following suspect components/assemblies in order. • Replace the Finisher Control Board (RRP 77, on page 11-336). • Replace the Engine Controller Board (RRP 42, on page 7-206). • Perform a continuity check on the pertinent wires / harnesses involved in serial communication between the Printer and the Finisher [Refer to the Printer and Finisher Wiring Diagrams]. 125 12-399 FINISHER ERROR 125 STAPLE MODE LOGIC FAILURE There are no diagnostics routines or test procedures for problems involving serial communications. It is recommended to address the following suspect components/assemblies in order. • Replace the Stapler Assembly (RRP 82, on page 11-342). • Replace the Finisher Control Board (RRP 77, on page 11-336). • Perform a continuity check on the wiring harness between the Finisher Control Board and the Stapler [Refer to the Finisher Wiring Diagram]. 2-84 Phaser 7700 Color Laser Printer Service Manual
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