Xerox DocuColor 12/DCCS50, Service Manual

Page: 1168 / 1617

1/05
8d-26 DocuColor 12/DCCS50
11-350 Decurler 1 Fail RAP, 11-512 Simple Catch Tray
Reissue
Finisher/Sorter
Enter dC330 012-012 Decurler Stepping Motor Speed 220. The Decurler Motor rotates.
Y N
Approximately +16 VDC is measured between
P/J653 -3, 4, 5, 6 and GND.
Y N
Replace the Decurler PWB ( PL 18.6 ).
Replace the Decurler Motor ( PL 18.8 ).
Enter dC330 012-013 Decurler Stepping Motor Speed 350. The Decurler Motor rotates.
Y N
Approximately +23 VDC is measured between
P/J653 -3, 4, 5, 6 and GND.
Y N
Replace the Decurler PWB ( PL 18.6 ).
Replace the Decurler Motor ( PL 18.8 ).
Enter dC330 012-276 Decurler Cam Position Sensor. Press Start . Manually move the Reflec-
tor in and out of the sensor The Decurler Cam Position Sensor alternates between H and
L as the reflector is moved in and out of the sensor.
Y
N
The Display is always L
Y
N
+5 VDC is measured between
P/J652
-2 and GND.
Y N
Go to Flag 8 on BSD12.6. Check the wire for a short circuit to ground. If the
wire is good, replace the Decurler Cam Position Sensor ( PL 18.7 ). If the prob-
lem continues, replace the Decurler PWB ( PL 18.6 ).
Less than +0.5 VDC is measured between P/J651 -B1 and GND.
Y N
Go to Flag 12 on BSD12.6. Check the wire for an open circuit. If the wire is
good, replace the Decurler PWB ( PL 18.6 ). If the problem continues, replace
the Finisher PWB ( PL 18.4 ).
Replace the Finisher PWB ( PL 18.4 ).
+5 VDC is Measured between P/J652 -1 and P/J652 -3 on the Decurler PWB.
Y N
Replace the Decurler PWB ( PL 18.6 ).
Go to Flag 7 on BSD12.6. Check the wires for an open circuit. If the wires are good,
replace the Decurler Cam Position Sensor ( PL 18.7 ). If the problem continues, replace
the Decurler PWB ( PL 18.6 ).
Clean the Decurler Cam Position Sensor and the Decurler Cam Position Sensor Reflector.
Ensure that there are no obstructions between the Decurler Cam Position Sensor and the
Decurler Cam Position Sensor. If the problem continues, replace the Decurler Cam Position
Sensor (
PL 18.7 ).
11-512 Simple Catch Tray (SCT) Full Stack RAP
The Control Logic detected that the Simple Catch Tray is full.
Initial Actions
• Refer to BSD12.10 for the following procedure.
• Ensure that the Simple Catch Tray is empty
• Ensure that connectors P/J1040 on the Finisher PWB, Double Plug P/J1080 , and P/
J1079 on the SCT Full Sensor are seated correctly and there are no obvious crimped or
broken wires.
Procedure
Enter dC330 012-275 SCT Full Sensor. Press Start . The display is H.
Y N
+5 VDC is measured between
P/J1040 -6 and DC-COM on the Finisher PWB.
Y N
Go to Flag 4 on BSD12.10. Check the wire for a short circuit to ground. If the wire is
good, replace the SCT Full Sensor ( PL 18.3 ).
Replace the Finisher PWB ( PL 18.4 ).
Block the SCT Full Sensor with a sheet of paper. The display changes to L.
Y N
+5 VDC is measured between
P/J1079 -1 and P/J1079 -3 on the SCT Full Sensor.
Y N
+5 VDC is measured between
P/J1040 -7 and P/J1040 -5 on the Finisher PWB.
Y N
Go to the +5VDC Figure 1 wirenets and check wires for an open or short circuit.
Go to Flag 1 on BSD12.4. Check the harness for an open or short circuit. If the har-
ness is good, replace the SCT Full Sensor ( PL 18.3 ).
Replace the SCT Full Sensor ( PL 18.3 ).
Check the Full Stack Sensor for intermittent operation, If the problem continues, replace the
SCT Full Sensor (
PL 18.3 ).
C
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