Xerox Phaser 7760 Service Manual page 360

012-946 Top Tray Full
The Top Tray Full Sensor was turned On for 10 seconds continuously.
Initial Actions
• Check the Top Tray Full Sensor for improper installation.
• Check the Top Tray Full Sensor connectors for connection failure.
• Check the Top Tray Full Sensor Actuator for deformation and operation 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. Actuate the Top Tray Full Sensor. (PL
Status Indicator RAP's
012-946
21.11) The display changes.
Figure 1 012-946 Top Tray Full Sensor
Y N
Check continuity between the Top Tray Full Sensor and Finisher PWB
continuity check is OK.
Y N
Repair the open circuit or short circuit.
Replace the Top Tray Full Sensor
isher PWB (PL 21.12).
If the problem continues, replace the Finisher PWB
January 2010
2-324
(Figure
(PL 21.11). If the problem continues, replace the Fin-
(PL 21.12).
Phaser 7760 Color Laser Printer
1). The
Revised