Xerox Phaser 7760 Service Manual page 403

024-976 Finisher Staple Status NG
The Staple Home Sensor has not switched Off to On within the specified time after the Staple
Motor started rotating forward.
The Staple Head Home Sensor turned On within xxx msec. after the Staple Motor reversed.
Initial Actions
• Check the Actuator for deformation.
• Check the Staple Home Sensor for improper installation.
• Check the Staple Home Sensor connectors for connection failure.
• Check the Staple Guide for a foreign substance and deformation.
• Check the Staple Motor for operating failure.
• Check the Staple 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 Staple Motor test alternately. The Staple Motor
Y N
Check continuity between the Stapler Head and Finisher PWB
ity check is OK.
Y N
Repair the open circuit or short circuit.
Replace the Stapler Head (PL 21.6). If the problem continues, replace the Finisher PWB
(PL 21.12).
Actuate the Staple Home Sensor (PL 21.6). Perform the Staple Motor test alternately. The
display changes.
Y N
Check continuity between the Stapler Head and Finisher PWB
ity check is OK.
Y N
Repair the open circuit or short circuit.
Replace the Stapler Head (PL 21.6). If the problem continues, replace the Finisher PWB
(PL 21.12).
If the problem continues, replace the Finisher PWB
Revised
Phaser 7760 Color Laser Printer
(PL 21.6) energizes.
(Figure 1). The continu-
(Figure 1). The continu-
(PL 21.12).
January 2010
2-367
Status Indicator RAP's
024-976