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Phaser 7700 Color Laser Printer Service Manual
111
112
12-241
12-242
FINISHER ERROR 111 STAPLER MOVE SENSOR ON
FAILURE
FINISHER ERROR 112 STAPLER MOVE SENSOR OFF
FAILURE
Open the Finisher Front Door.
Defeat the Front Door Interlock Switch.
Enter Service Diagnostics Mode.
Run the Stapler “Move Front, Move Rear” and “Reverse” tests to verify the movement of the
Stapler Carriage Assembly.
Does the Stapler Carriage Assembly move smoothly through its full range of travel?
Yes No
Refer to the Finisher Troubleshooting Procedures to troubleshoot this problem.
Inspect the Stapler Move Sensor for damage and secure mounting.
Is the sensor in good condition and secure?
Yes No
Repair or replace the sensor.
Remove the Finisher Rear Cover (RRP 42, on page 7-206) and the Board Cover (RRP 42, on
page 7-206).
Measure the voltage between Finisher Board connector P852-7 (see figure page 2-46) and
Finisher frame ground while interrupting the Move Sensor.
Does the voltage toggle between 0 VDC and +5 VDC?
Yes No
Measure the voltage at Finisher Board connector P852-8 (see figure page 2-46).
Does the voltage m5 VDC?
Yes No
Replace the Finisher Control Board.
Measure the voltage at Finisher Board connector P852-6 (see figure page 2-46).
Does the voltage measure 0 VDC?
Yes No
Replace the Finisher Control Board.
Replace the Move Sensor.
Replace the Finisher Control Board.
If the problem persists, replace Printer Engine Control Board (RRP 42, on page 7-206).
If the problem continues to persist, verify the ground continuity between Finisher frame ground
and Printer frame ground.
Error
Code
Chain /
Link
Front Panel Message
Summary of Contents for 7700DX - Phaser Color Laser Printer
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