Xerox Phaser 7760 Service Manual page 295

012-233 Puncher Move Home Sensor On Fail
Puncher Move Home Sensor is not turned On after the lapse of 400(300*500**)msec from
operation start.Puncher Move Home Sensor is not turned on after the stop following Puncher
Move Home Sensor On.
Initial Actions
Check the following components:
• Actuator for deformation
• Puncher Move Home Sensor for improper installation
• Puncher Move Home Sensor connectors for connection failure
• Puncher Move Motor connectors for connection failure
Procedure
Enter Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools > Printer
Status Page > hold the Up and Down buttons simultaneously > Run Service Diagnostics >
OK. Perform the Puncher Move Motor test. The Puncher Move Motor
Y N
Check continuity between the Puncher Move Motor and Finisher PWB
continuity check is OK.
Y N
Repair the open circuit or short circuit.
Replace the Puncher Move Motor
isher PWB (PL 21.12).
Block/unblock the Puncher Move Home Sensor
Y N
Check continuity between the Puncher Move Home Sensor and Finisher Main PWB
ure 1). The continuity check is OK.
Y N
Repair the open circuit or short circuit.
Replace the Puncher Move Home Sensor
Finisher PWB (PL 21.12).
Check the following:
• Puncher Move Motor rack and gear for binding, wear, or damage
If the above check is OK, replace the Finisher PWB
Revised
Phaser 7760 Color Laser Printer
(PL 21.5) energizes.
(Figure
(PL 21.5). If the problem continues, replace the Fin-
(PL 21.5). The display changes.
(PL 21.5). If the problem continues, replace the
(PL 21.12).
1). The
(Fig-
January 2010
2-259
Status Indicator RAP's
012-233