Xerox WorkCentre 7132 Service Documentation page 391

024-980 (A-Finisher) Stacker Tray Full Stack
BSD-ON:CH15.8
One of the following:
• At Power On, the Stack Height Sensor detected the height and the Full position.
• During the operation of adjusting (lowering) the height of the Stacker Tray for small paper
to be ejected, the Full position was detected.
• During the operation of adjusting (lowering) the height of the Stacker Tray for large paper
to be ejected, the Half position (Full-of-Large-Sheets position) was detected.
• With the Half position (Full-of-Large-Sheets position) already detected, paper (large
paper) a stack of which is limited to the Half position was ejected.
Initial Actions
• Check that the Stack Height Sensor is properly installed, not broken and has no foreign
objects.
• Check Stacker Stack Sensors 1 and 2 are properly installed and free from foreign objects
and that their actuators are not broken.
• Power Off/On.
Procedure
Check for remaining paper and foreign objects on the Stacker Tray. The Stacker Tray is free
of paper and/or foreign objects.
Y N
Remove the remaining paper and/or foreign object(s).
Check the drive mechanism to the Stacker Tray for a deformed or broken part and not-seated
gears. The drive mechanism is free of defects and the gears seat properly.
Y N
Repair the Stacker Tray mechanism.
Enter COmponent Control [012-267]. Block and unblock the Stack Height Sensor with a piece
of paper. The display changes.
Y N
Check the connections of P/J8708 and P/J8727. P/J8708 and P/J8727 are securely
connected.
Y N
Connect P/J8708 and P/J8727 securely.
Check for an open or short circuit between J8708 and J8727. The
J8708 and J8727 are OK.
Y N
Repair the open or short circuit.
Measure the voltage between J8708-3 (+) on the Finisher PWB and GND (-). The volt-
age is approx. +5VDC.
Y N
Go to Wirenet 7.2.36 A-Finisher +5VDC and check the +5VDC circuit.
A B
Status-indicator-raps
024-980 (A-Finisher)
A B
Measure the voltage between J8708-2 (+) on the Finisher PWB and GND (-). Block and
unblock the Stack Height Sensor with a piece of paper. The voltage changes.
Y N
Replace the Stack Height Sensor (PL 22.10).
Check the wires and connectors for an intermittent open or short circuit. If the problem
continues, replace the Finisher PWB (PL 22.7).
Run DC330[012-278].
Enter [012-278]. Rotate the Stacker Stack Sensor 1 actuator by hand to block and unblock the
sensor. The display changes.
Y N
Check the connections of P/J8707 and P/J8722. P/J8707 and P/J8722 are securely
connected.
Y N
Connect P/J8707 and P/J8722 securely.
Check for an open or short circuit between J8707 and J8722. The
J8707 and J8722 are OK.
Y N
Repair the open wire or short circuit.
Measure the voltage between J8707-6 (+) on the Finisher PWB and GND (-). The volt-
age is approx. +5VDC.
Y N
Go to Wirenet 7.2.36 A-Finisher +5VDC and check the +5VDC circuit.
Measure the voltage between J8707-5 (+) on the Finisher PWB and GND (-). Rotate the
Stacker Stack Sensor 1 actuator by hand to block and unblock the sensor. The voltage
changes.
Y N
Replace the Stacker Stack Sensor 1(PL 22.8).
Check the wires and connectors for an intermittent open or short circuit. If the problem
continues, replace the Finisher PWB (PL 22.7).
Run DC330[012-279].
Enter [012-279]. Rotate the Stacker Stack Sensor 2 actuator by hand to block and unblock the
sensor. The display changes.
Y N
Check the connections of P/J8707 and P/J8721. P/J8707 and P/J8721 are securely
wires between
connected.
Y N
Connect P/J8707 and P/J8721 securely.
Check for an open or short circuit between J8707 and J8721. The
J8707 and J8721 are OK.
Y N
Repair the open or short circuit.
Measure the voltage between J8707-3 (+) on the Finisher PWB and GND (-). The volt-
age is approx. +5VDC.
C
January 2007
2-358
wires between
wires between
Revision
WorkCentre 7132