Xerox DocuColor 12/DCCS50, Service Manual

Page: 1176 / 1617

1/05
8d-34 DocuColor 12/DCCS50
12-120, 12-121
Reissue
Finisher/Sorter
Y N
Disconnect P/J1052 . There is +5 VDC from J1052-1 to J1052-3.
Y N
+5 VDC is measured from
P/J1039 -1 to P/J1039 -3.
Y N
+5 VDC is measured from
P/J1026 -3 to P/J1026 -2.
Y N
Go to Flag 17 on BSD 12.1. Check the +5VDC wiring for an open cir-
cuit.
Replace the Finisher PWB ( PL 18.4 ).
Go to Flag 9 on BSD 12.7. Check the harness for an open circuit.
There is +5 VDC from J1052-2 to J1052-3.
Y
N
Go to Flag 10 on BSD 12.7. Check the harness for an open circuit. If the wire is
good, replace the Finisher PWB ( PL 18.4 )
Replace the Compiler Entrance Sensor ( PL 18.14 ). If the problem continues, replace
the Finisher PWB ( PL 18.4 ).
Disconnect P/J1052 . The display is High.
Y N
Go to Flag 10 on BSD12.7. Check the wire for a short circuit to GND. If the wire is
good, replace the Finisher PWB ( PL 18.4 )
Replace the Compiler Entrance Sensor ( PL 18.14 ).
Check the actuator of the Compiler Entrance Sensor for binding as it moves in and out of the
sensor.
Check
Flag 9 and Flag 10 on BSD12.7 for loose connectors or an intermittent short circuit.
Check the paper path for scraps of paper or other obstructions.
Check the following parts for wear, glazing, or slipping:
•
Finisher Transport Rolls ( PL 18.9 )
• Pinch Rolls ( PL 18.12 )
• Exit Roll ( PL 18.14 )
• Finisher Drive Belt ( PL 18.9 )
12-121 RAP
The Compiler Entrance Sensor does not detect the trail edge of a sheet of paper within a spec-
ified period of time after the lead edge of the same sheet was detected.
Initial Actions
Refer to BSD 12.1, BSD 12.5, and BSD 12.7 and for the following procedure.
Check for the following:
•
Obstructions in the Finisher paper path
• Obstructions in the Compiler Tray
• Ensure that there is sufficient nip force at the Finisher Transport Rolls and the Entrance
Roll.
• Ensure that connectors P/J1039 on the Finisher PWB and P/J1052 on the Compiler
Entrance Sensor are seated correctly and there are no obvious crimped or broken wires.
Procedure
The trail edge of the paper is past the Compiler Entrance Sensor.
Y
N
Enter dC330012-020 Finisher Transport Motor. Press Start . The Finisher Transport
Rolls are rotating.
Y
N
The Finisher Drive Belt is moving.
Y
N
The Finisher Transport Motor is rotating.
Y
N
+24 VDC is measured from
P/J1084 -1 to P/J1084 -2 of the Finisher
Transport Motor.
Y
N
Go to Flag 5 on BSD12.5. Check the wires for an open circuit. If the
wires are good, replace the Finisher PWB ( PL 18.4 ).
Press Stop . +5 VDC is measured from P/J1084 -3 to GND.
Y N
Go to Flag 4 on BSD 12.5. Check the wire for an open circuit. If the
wire is good, replace the Finisher PWB ( PL 18.4 ).
Press Start. Less than +1 VDC is measured from P/J1084 -3 to GND.
Y N
Replace the Finisher PWB ( PL 18.4 ).
Go to Flag 4 on BSD 12.5. Check the wire for an open circuit. If the wire is
good, replace the Finisher Transport Motor ( PL 18.9 ).
Ensure that the Finisher Transport Motor Pulley is fastened to the motor shaft.
Check the Compiler Drive Belt for proper tension or damage.
Check that the gears/ pulleys are properly fastened to the drive rolls.
The Exit Roll Belt is moving.
D
A
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