Xerox DocuColor 12/DCCS50, Service Manual

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1/05
2-111 DocuColor 12/DCCS50
9-344/9-434 IBT Cleaner Contact Fail RAP
Status Indicator RAPs
Reissue
9-344/9-434 IBT Cleaner Contact Fail RAP
The Control Logic has detected that the IBT Cleaner failed to contact the IBT.
Initial Actions
• Refer to BSD 9.11 and BSD 9.15 for the following procedure.
• Ensure that P/J417A and P/J418B on the IOT Drive PWB, P/J252 on the Cleaner
Retract Clutch, and P/J111 on the IBT Clean Blade Home Position Sensor are connected
before beginning this RAP.
Procedure
Stack the codes dC330 004-007 Main Motor and 009-066 IBT Cleaner Contact.
Enter dC330 009-216 IBT Cleaner Retract Home Sensor. Press
Start. The Display is (H)
Y N
Remove the IBT REP 7.1.1 (Reinstall IBT after test is completed). Manually block the IBT
Clean Home Position Sensor. The display changes to (H)
Y N
+5 VDC is measured between
P/J418B -5 and GND on the IOT Drive PWB.
Y N
+5 VDC is measured between
P/J418B -6 and P/J418B -4 on the IOT Drive
PWB.
Y
N
Go to the +5 VDC (IOT) Wirenet and check the wires between P/J21
-1
on the IOT LVPS and P/J418B 8-6 on the IOT Drive PWB. Go to the DC
COM (IOT) Wirenet and check the wires between P/J21 -5 on the IOT
LVPS and P/J418B -4 on the IOT Drive PWB.
Go to Flag 1 on BSD 9.11 and check the wire for a short circuit to ground. Go to
Flag 3 on BSD 9.11. Check the wires for an open circuit. If the wires are good,
replace the IBT Clean Blade Home Position Sensor ( PL 7.3 ).
Replace the IOT Drive PWB (PL 9.2).
Enter dC330 009-059 2ND Belt Transfer Roll Retract. Press Start. Enter dC330 009-067
IBT Cleaner Retract. Press Start. The Cleaner Retract Clutch energizes.
Y N
+24 VDC is measured between
P/J417A -9 and P/J417A -10 on the IOT Drive
PWB.
Y
N
+24 VDC is measured between
P/J417A -9 and GND on the IOT Drive
PWB.
Y
N
Go to the +24 VDC-4 Wirenet and check the wires between P/J24 -2 on
the IOT LVPS and P/J417A -9 on the IOT Drive PWB.
Go to Flag 2 on BSD 9.11. Check the wires for an open circuit or a short circuit.
If the wires are good, replace the IOT Drive PWB ( PL 9.2 ). If the problem con-
tinues, replace the Cleaner Retract Clutch ( PL 1.3 ).
Go to Flag 2 on BSD 9.11 and check the wires for an open circuit. If the wires are
good, replace the Cleaner Retract Clutch ( PL 1.3 ).
Check the Cleaner Retract Clutch for binding or intermittent operation. If the Cleaner
Retract Clutch is good, replace the IBT Clean Blade Home Position Sensor (
PL 7.3 ). If the
problem continues, replace the Cleaner Retract Clutch ( PL 1.3 ).
Replace the IOT Drive PWB ( PL 9.2 ).
A
A
B
B
C
C