Xerox Phaser 7760 Service Manual page 233

012-112 H-Transport Entrance Sensor On Jam
H-Transport Entrance Sensor is not turned on within a specified time.
Initial Actions
• Check for obstructions in the paper path
• Check the H-Transport Drive Motor Belt for wear or damage.
• Check the Guides on the H-Transport Cover for damage, wear or faulty installation.
Procedure
Enter Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools > Printer
Status Page > hold the Up and Down buttons simultaneously > Run Service Diagnostics >
OK. Open the H-Transport Cover and actuate the H-Transport Entrance Sensor
The display changes.
Y N
Check the circuit of the H-Transport Entrance Sensor
Transmissive Sensor Procedure for troubleshooting procedure.
Perform the H-Transport Drive Motor test. The H-Transport Drive Motor
gizes.
Y N
Check the circuit of the H-Transport Drive Motor
troubleshooting procedure.
Close the H-Transport Cover. Perform the Gate Solenoid test. The Gate Solenoid
actuates.
Y N
Check the circuit of the Gate Solenoid
troubleshooting procedure.
Check the following:
• Ensure that the connectors shown in the circuit diagrams are securely connected and that
the wires are not damaged.
• Check the H-Transport Motor and its associated gears and belts for damage, contamina-
tion or misalignment.
• Remove the Bumpers from the Baffle in Horizontal Transport and verify operation
21.27).
If the above checks are OK, then replace the H-Transport Entrance Sensor
problem persists, replace the Finisher PWB
Revised
Phaser 7760 Color Laser Printer
(PL
(Figure 1). Refer to Section 6,
(PL 21.26) ener-
(Figure 1). Refer to the OF 99-9
(PL
(Figure 1). Refer to Section 2, OF 99-8
(PL 21.25). If the
(PL 21.12).
21.25).
RAP for
21.25)
RAP for
(PL
January 2010
2-197
Status Indicator RAP's
012-112