Xerox WorkCentre 7132 Service Documentation page 178

012-313 Rear Tamper Home Sensor Off Fail RAP
BSD-ON:12.4
After the Rear Tamper started moving away from the home position, the Rear Tamper Home
Sensor did not turn Off within the specified time.
Initial Actions
• Power Off/On
• Remove foreign substances in the Compiler Tray.
Procedure
Manually operate the Tamper mechanism. The Tamper mechanism moves smoothly.
Y N
Replace the parts that are interfering with operation.
Execute Component Control [012-221 Rear Tamper Home Sensor]. Actuate the Rear Tamper
Home Sensor with paper. The display changes.
Y N
Check the connections of P/J8805 and P/J8848. P/J8805 and
nected correctly.
Y N
Connect P/J8805 and P/J8848.
Check the wire between J8805 and J8848 for an open circuit or a short circuit (BSD 12.4
Flag 1/Flag 2). The wire between J8805 and J8848 is conducting without an open
circuit or a short circuit.
Y N
Repair the open circuit or short circuit.
Measure the voltage between the Finisher PWB P8848-A9 (+) and GND (-) (BSD 12.4
Flag 1). The voltage is approx. +5VDC.
Y N
Replace the Finisher PWB (PL 17.12).
Measure the voltage between the Finisher PWB P8848-A8 (+) and GND (-) (BSD 12.4
Flag 1).
Actuate the Rear Tamper Home Sensor with paper. The voltage changes.
Y N
Replace the Rear Tamper Home Sensor (PL 17.9).
Replace the Finisher PWB (PL 17.12).
Alternately execute Component Control [012-026 Rear Tamper Motor FRONT ON] and Com-
ponent Control [012-029 Rear Tamper Motor REAR ON]. The Rear Tamper Motor starts up.
Y N
Check the connections of P/J8824 and P/J8848. P/J8824 and
nected correctly.
Y N
Connect P/J8824 and P/J8848.
A B
Revision
WorkCentre 7132
A B
Check the wire between J8824 and J8848 for an open circuit or a short circuit (BSD 12.4
Flag 8). The wire between J8824 and J8848 is conducting without an open circuit or
a short circuit.
Y N
Repair the open circuit or short circuit.
Measure the resistance of the Rear Tamper Motor between J8824-2/5 (COM) and each
point of J8824-1/3/4/6 (BSD 12.4 Flag 7). The resistance is approx. 750Ohm.
Y N
Replace the Rear Tamper Motor (PL 17.9).
Measure the voltage between the Finisher PWB P8848-B2 (+) and GND (-), and between
P8848-B5 (+) and GND (-) (BSD 12.4 Flag 8). The voltage is approx. +24VDC.
Y N
Replace the Finisher PWB (PL 17.12).
Replace the Rear Tamper Motor (PL 17.9). If the problem persists, replace the Finisher
PWB (PL 17.12).
Replace the Finisher PWB (PL 17.12).
P/J8848 are con-
P/J8848 are con-
January 2007
2-155
Status-indicator-raps
012-313