Xerox WorkCentre 7132 Service Documentation page 200

012-263 (A-Finisher) Rear Tamper Home Sensor ON Fail
BSD-ON:CH15.4
During the moving of the Rear Tamper from when the Rear Tamper Home Sensor was Off to
the home position, the Rear Tamper Home Sensor was not detected turning On within a speci-
fied time after the Rear Tamper started moving.
Initial Actions
• Check the Rear Tamper Home Sensor is properly installed and has no foreign object and
that the actuator is not broken.
• Power Off/ON.
Procedure
Check the Rear Tamper for any foreign object, deformation and binding that prevents it from
moving. The Rear Tamper is free from defects and binding.
Y N
Repair the deformation and remove the foreign object(s) and the binding.
Check the drive mechanism to the Rear Tamper for a deformed or broken part and not-seated
gears. The drive mechanism is free from defects and gears seat properly.
Y N
Repair the Rear Tamper drive mechanism.
Enter Component Control [012-221]. Move the Rear Tamper by hand to block and unblock the
Rear Tamper Home Sensor. The display changes.
Y N
Check the connections of P/J8700 and P/J8726. P/J8700 and P/J8726 are securely
connected.
Y N
Connect P/J8700 and P/J8726 securely.
Check for an open wire or short circuit between J8700 and J8726. The wire between
J8700 and J8726 are OK.
Y N
Repair the open or short circuit.
Measure the voltage between Finisher PWB J8700-12 (+) and GND (-). The voltage is
approx. +5VDC.
Y N
Go to Wirenet 7.2.36 A-Finisher +5VDC and check the +5VDC circuit.
Measure the voltage between Finisher PWB J8700-11 (+) and GND (-). Move the Rear
Tamper by hand to block and unblock the Rear Tamper Home Sensor. The
changes.
Y N
Replace the Rear Tamper Home Sensor (PL 22.9).
Check the wires and connectors for an intermittent open or short circuit. If the problem
continues, replace the Finisher PWB (PL 22.7).
A
Revision
WorkCentre 7132
A
Enter [012-026] and [012-029] alternately. The Rear Tamper Motor rotates.
Y N
Check the connections of P/J8710, P/J8737A and P/J8737B. P/J8710, P/J8737A and
P/J8737B are securely connected.
Y N
Connect P/J8710, P/J8737A and P/J8737B securely.
Check for an open or short circuit between J8710, P/J8737A and J8737B. The
between J8710, P/J8737A and J8737B are OK.
Y N
Repair the open or short circuit.
Measure the voltage between Finisher PWB J8710-1 (+) and GND (-), and between
J8710-3 (+) and GND (-). Each voltage is approx. +24VDC.
Y N
Go to Wirenet 7.2.38 A-Finisher +24VDC and check the +24VDC circuit. If the prob-
lem continues, replace the Finisher PWB (PL 22.7).
Replace the Rear Tamper Motor (PL 22.10). If the problem continues, replace the Finisher
PWB (PL 22.7).
Check the wires and connectors for an intermittent open or short circuit. If the problem contin-
ues, replace the Finisher PWB (PL 22.7).
voltage
January 2007
2-177
wires
Status-indicator-raps
012-263 (A-Finisher)