Xerox Phaser 7750DXF, Service Manual

Page: 113 / 505

Error Messages and Codes 3-47
Finisher Stapler Move Sensor On Failure, Code 111
Finisher Stapler Move Sensor Off Failure, Code 112
Error Code 111: The staple move sensor did not turn ON within 2 seconds after the
system has started to move to the staple position and the staple move sensor has
turned off. Or, the staple move sensor did not turn on after the move to the staple
position has completed.
Error Code 112: The staple move sensor does not turn OFF within 5 seconds after
the move to the staple position has started. Or, the staple move sensor turned OFF
after the staple position has been fixed. Or, the staple move sensor does not turn OFF
within 5 seconds after it has turned ON when the paper passed through the 1st
position of the dual staple, moving to the rear staple position.
Troubleshooting References
Applicable Parts Wiring and Plug/Jack Map References
■
Finisher Control Board
■
Staple Move Motor
Troubleshooting Procedure
Step Actions and Questions Yes No
1 1. Manually move the staple head.
2. Does the head move smoothly from
front to rear?
Go to step 2. Diagnose and
repair the
mechanical
defect.
2 1. Enter service diagnostics and run the
Stapler Move Sensor test.
2. Does the value change from L to H
when the sensor is blocked?
Go to step 3. Use the
Transmissive
Sensor procedure
to diagnose and
repair the sensor.
3
1. Run the Stapler: Move Front or Move
Rear test in diagnostics.
2. Does the stapler move motor run?
Replace the
finisher control
board. Go to step 4.
4 Is +24 VDC present at P847 pins 1, 2, 5,
and 6? Replace in the
following order:
■
stapler move
motor
■
finisher control
board
Go to step 5