Xerox WorkCentre 7132 Service Documentation page 198

012-224 (A-Finisher) Rear Tamper Home Sensor OFF Fail
BSD-ON:CH15.4
• At the end of the operation of trying to turn Off the Rear Tamper Home Sensor that was
On, the Rear Tamper Home Sensor was not detected being Off.
• The Rear Tamper Home Sensor should have turned Off and then the Rear Tamper Motor
stopped, but the Rear Tamper Home Sensor was On.
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 in normal condition, not deformed or broken and with no
not-seated gears.
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 of 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 or short circuit between J8700 and J8726. The
J8700 and J8726 are OK.
Y N
Repair the open wire 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).
A B
Revision
WorkCentre 7132
A B
Check the wires and connectors for an intermittent open or short circuit. If the problem
continues, replace the Finisher PWB (PL 22.7).
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 wire or short circuit between J8710, P/J8737A and J8737B. The wire
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 (-). The 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).
Repair 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).
wires between
voltage
January 2007
2-175
Status-indicator-raps
012-224 (A-Finisher)