Xerox DocuColor 12/DCCS50, Service Manual

Page: 1175 / 1617

1/05
8d-33 DocuColor 12/DCCS50
12-120
Finisher/Sorter
Reissue
12-120 RAP
The Compiler Entrance Sensor did not detect the lead edge of a sheet of paper within a speci-
fied period of time after the lead edge of the same sheet was detected by the Decurler Exit
Sensor.
Initial Actions
Refer to BSD12.7, BSD 12.5, and BSD 12.1 for the following procedure.
Check for the following:
•
Obstructions in the Finisher Transport paper path
• Bent or out of position paper chutes/guides in the Finisher Transport paper path
• Ensure that there is sufficient nip force at the Finisher Transport Rolls and the Exit 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 lead edge of the paper is at or past the Compiler Entrance Sensor.
Y
N
The paper entered the Finisher Transport.
Y
N
The Finisher Gate is in the Compiler position.
Y
N
Enter dC330 012-071 Finisher Gate Solenoid Open. Press Start. The Fin-
isher Gate moved to the Compiler position.
Y
N
+24 VDC is measured from
P/J1081 -A2 to GND.
Y N
+24 VDC is measured from
P/J1042 -16 on the Finisher PWB to
GND.
Y
N
Replace the Finisher PWB ( PL 18.4 ).
Go to Flag 6 on BSD 12.7. Check the wires for an open circuit.
There is +24 VDC from P/J1042 -18 to GND.
Y N
Go to Flag 5 on BSD 12.7. Check the wires for an open circuit. If the
wires are good, replace the Finisher Gate Solenoid ( PL 18.11 ).
Ensure that the Finisher Gate is connected to the Finisher Gate Solenoid
and that it moves freely. If the problem continues replace the Finisher Gate
Solenoid (
PL 18.11 ). If this does not resolve the problem, replace the Fin-
isher PWB ( PL 18.4
).
Ensure that the Finisher Gate is connected to the Finisher Gate Solenoid and
that it moves freely. If the problem continues replace the Finisher Gate and the
Finisher Gate Solenoid (
PL 18.11 ).
Check the paper path for any obstructions that could prevent the sheet from entering
the Finisher Transport.
Ensure that the Finisher Gate moves freely. If the problem continues replace the Fin-
isher Gate (
PL 18.11 ) and the Finisher Gate Solenoid ( PL 18.11 ).
Enter dC330 012-020 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 BSD 12.5. 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 ).
Replace the Finisher Transport Motor ( PL 18.9 ).
Ensure that the Finisher Transport Motor Pulley ( PL 18.9 ) is fastened to the
motor shaft.
Check the Finisher Drive Belt for slipping or damage.
Check that the gears/ pulleys are properly fastened to the drive rolls.
Ensure that the Finisher Entrance Baffle is correctly positioned and free from damage.
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 )
NOTE: The output of the Compiler Entrance Sensor is Low when the sensor is blocked, and
High when the sensor is not blocked. Paper on the sensor moves the actuator away from the
sensor, unblocking it.
Enter dC330 012-120 Compiler Entrance Sensor. Press Start . Manually actuate the Compiler
Entrance Sensor. The display changes from Low to High to Low as the actuator moves in
and out of the sensor.
Y
N
The display is always Low.
A
A
B
B
C
C
D