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Phaser 7700 Color Laser Printer Service Manual
2-77
117
12-255
FINISHER ERROR 117 STACKER TRAY FAILURE (Contin-
ued)
While watching the display, interrupt the Stack A and Stack B sensors.
Does the display indicate H & L for both sensors?
Yes No
Does the display indicate H & L for one sensor?
Yes No
Replace the Finisher Controller Board (RRP 77, on page 11-336).
Address the following components/assemblies in order:
•
The unresponsive sensor.
•
The Finisher Control Board (RRP 77, on page 11-336).
•
The wiring harness between the sensors and the Finisher Control Board.
Replace the Engine Control Board (RRP 42, on page 7-206) in the printer.
118
119
12-256
12-257
FINISHER ERROR 118 STAPLER FRONT CORNER SENSOR
ON FAILURE
FINISHER ERROR 119 STAPLER FRONT CORNER SENSOR
OFF FAILURE
Open the Front Door.
Defeat the Front Door Interlock.
Enter Service Diagnostics Mode.
From the “Motors/Fans Tests / Finisher Motors / Stapler Move Motor” test menu, select “Move
Front” to move the Stapler to the front of the Finisher.
From the Main Menu, select “Sensor Tests/Finisher Sensors/Stacker.”
Manually move the Stapler Assembly so as to interrupt the Stapler Front Corner Sensor.
Does the Front Panel LCD show “Front Corner” toggling between H & L.
Yes No
Remove the Rear Cover and the Board Cover (RRP 72, on page 11-330).
Measure the voltage between the Finisher Control Board P850A-2 (see figure page 2-46)
and Finisher frame ground.
Again manually move the Stapler Assembly so as to interrupt the Stapler Front Corner
Sensor.
Does the voltage toggle b5 VDC and 0 VDC?
Yes No
Remove the Finisher Front Cover (RRP 72, on page 11-330).
Measure the voltage at the Front Corner Sensor pin 2 (yellow) and Finisher frame
ground.
Once again manually move the Stapler Assembly so as to interrupt the
Stapler Front Corner Sensor.
A
B
C
Error
Code
Chain /
Link
Front Panel Message
Summary of Contents for 7700DX - Phaser Color Laser Printer
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Page 341: ...Phaser 7700 Color Laser Printer Service Manual 10 311 ly Board and Lower Tray Motor Assembly...
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