Xerox 7750DXF - Phaser Color Laser Printer - Finisher Stacker Height Sensor off Failure, Code 116

Error Messages and Codes 3-53
Finisher Stacker Height Sensor Off Failure, Code 116
The Stack Height Sensor did not detect that the tray went down within 5 seconds after
the Stacker Tray had been signaled to lower down at initialization. Or, the Stack
Height Sensor did not detect the tray moving up within 5 seconds after the Stacker
Tray had been signaled to lift.
Troubleshooting References
Applicable Parts Wiring and Plug/Jack Map References
■ Stacker Height Sensor/Actuator
■ Finisher Control Board
Troubleshooting Procedure
Step Actions and Questions Yes No
1
1. Actuate the stacker height sensor in
diagnostics.
2. Does the value change between H and L?
Go to step 2. Troubleshoot
using the
transmissive
sensor
procedure.
2
1. Run the Finisher Stacker Motor Down test in
diagnostics.
2. Does the stacker tray lower?
Go to step 5. Go to step 3.
3
Does the stacker motor turn? Diagnose and
repair the
mechanical
problem. Check
the stacker
motor gear,
stacker tray, and
belt track gear.
Go to step 4.
4
Is +24 VDC present at P/J 847-12 with the
Finisher Stacker Motor Down test running in
diagnostics?
Replace the
stacker motor.
Replace the
finisher control
board.
5
1. Run the Finisher Stacker Motor Up test in
diagnostics.
2. Does the stacker tray move up?
Replace the
finisher control
board.
Go to step 6.
6
Does the sacker motor turn? Diagnose and
repair the
mechanical
problem. Check
the stacker
motor gear,
stacker tray, and
belt track gear.
Go to step 7.