Xerox WorkCentre 7132 Service Documentation page 175

012-310 Front Tamper Home Sensor On Fail RAP
BSD-ON:12.4
After the Front Tamper started moving to the home position, the Front Tamper Home Sensor
did not turn On within 800ms.
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 [012-220 Front Tamper Home Sensor]. Actuate the Front Tamper
Home Sensor with paper. The display changes. The display changes.
Y N
Check the connections of P/J8807 and P/J8848. P/J8807 and
nected correctly.
Y N
Connect P/J8807 and P/J8848.
Check the wire between J8807 and J8848 for an open circuit or a short circuit (BSD 12.4
Flag 5/Flag 6). The wire between J8807 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-A3 (+) and GND (-) (BSD 12.4
Flag 6). The voltage is approx. +5VDC.
Y N
Replace the Finisher PWB (PL 17.12).
Measure the voltage between the Finisher PWB P8848-A2 (+) and GND (-) (BSD 12.4
Flag 5).
Actuate the Front Tamper Home Sensor with paper. The voltage changes.
Y N
Replace the Front Tamper Home Sensor (PL 17.9).
Replace the Finisher PWB (PL 17.12).
Alternately execute Component Control [012-020 Front Tamper Motor FRONT ON] and Com-
ponent Control [012-023 Front Tamper Motor REAR ON]. The Front Tamper Motor starts up.
Y N
Check the connections of P/J8823 and P/J8848. P/J8823 and
nected correctly.
Y N
Connect P/J8823 and P/J8848.
A B
Status-indicator-raps
012-310
A B
Check the wire between J8823 and J8848 for an open circuit or a short circuit (BSD 12.4
Flag 7). The wire between J8823 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 Front Tamper Motor between J8823-2/5 (COM) and each
point of J8823-1/3/4/6 (BSD 12.4 Flag 7). The resistance is approx. 750Ohm.
Y N
Replace the Front Tamper Motor (PL 17.9).
Measure the voltage between the Finisher PWB P8848-B8 (+) and GND (-), and between
P8848-B11 (+) and GND (-) (BSD 12.4 Flag 7). The voltage is approx. +24VDC.
Y N
Replace the Finisher PWB (PL 17.12).
Replace the Front 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
2-152
Revision
WorkCentre 7132