Xerox DocuColor 12/DCCS50, Service Manual

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DocuColor 12/DCCS50
6-361 Scan Initialize Regi Sensor Failure RAP
Reissue
Status Indicator RAPs
6-361 Scan Initialize Regi Sensor Failure RAP
The IIT Driver PWB detected an inability to control the Carriage during carriage during initial-
ization.
Initial Actions
• Refer to BSD 6.3 and BSD 6.7 in the following procedure
• Check the Carriage assembly for wear, dirt, debris, and misalignment of the components.
• Verify that the IIT Registration Sensor is correctly aligned and free from contamination.
• Verify that the Carriage and Carriage Cable are installed properly and free from damage.
Procedure
Enter dC330 006-212 Registration Sensor. Press Start. Manually move the Full Rate Car-
riage from the full left position to the full right position and back full left. The display changes
from L to H then back to L.
Y
N
Actuate the IIT Regi Sensor with a piece of paper. The display is L.
Y N
Disconnect P/J532 on the IIT Registration Sensor. The display is H.
Y N
Go to Flag 2 on BSD 6.3 and check the wires for an open or short circuit. If the
wires are OK, replace the Pre-IPS PWB ( PL 3.5 ).
Replace the IIT Registration Sensor ( PL 3.2 ).
Deactuate the IIT Registration Sensor. The display is H.
Y N
+5 VDC is measured between
P/J532 -2 and GND on the IIT Registration Sen-
sor.
Y
N
Go to Flag 1 on BSD 6.3 and check the wire for an open or short circuit. If the
wire is OK, replace the Pre IPS PWB ( PL 3.5 )
There is +5 VDC between P/J532 -1 and P/J532 -3 on the IIT Regi Sensor.
Y N
Go to Flag 2 on BSD 6.3 and check the wires for an open or short circuit. If the
wires are OK, replace the Pre IPS PWB ( PL 3.5 ).
Clean and align the IIT Regi Sensor. If the problem continues, replace the IOT PWB
(PL 9.2).
Clean the IIT Regi Sensor and check for damaged and proper aligned. If the problem con-
tinues, replace the IIT Regi Sensor (
PL 3.2 ).
Enter dC330 006-005 IIT Scan Motor (Scan) and 006-006 IIT Scan Motor (Return) . The
Carriage moves Right [06-005] and Left [06-006].
Y
N
+5VDC is measured between
P/J524 -12 and P/J524 -8 on the IIT Driver PWB
Y N
Go to Flag 3 on BSD 6.3 and check the wires for an open circuit or short circuit. If the
wires are OK, replace the Pre IPS PWB ( PL 3.5 ).
+5VDC is measured between P/J520 -1,4,5,6,3 and GND on the IIT Driver PWB.
Y N
Replace the IIT Driver PWB ( PL 3.2 ).
Go to Flag 4 on BSD 6.3 and check the wires for an open circuit or short circuit. If the
wires are OK, replace the Carriage Motor ( PL 3.3 ).
Continue to run the Carriage through the full range of travel using dC330 006-005 IIT Scan
Motor (Scan) and 006-006 IIT Scan Motor (Return) . Observe the motion and listen for any
abnormal sounds in the Carriage motor and assembly. The Carriage motor and assembly
appear to be defect free.
Y
N
Inspect the assembly for damage, misalignment, dirt, or debris. Verify that the Carriage
Cables are properly installed and free from damage. Repair or replace as required.
Go to Flag 1 , Flag 2 , Flag 3 , and Flag 4 on BSD 6.3 and check the wires for an open or short
circuit. If the wires are OK, replace the following:
•
Carriage Motor ( PL 3.3 )
• IIT Driver PWB ( PL 3.2 )
• Pre IPS PWB ( PL 3.5 )
A
A
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