10-356 External Heat Roll Retract Failure Rap - Xerox DocuColor 12/DCCS50 Service Manual

10-356 External Heat Roll Retract Failure RAP

The External Heat Roll Retract Sensor did not go H within 5 seconds after the External Heat
Roll Retract Motor started rotating.
Initial Actions
Refer to BSD 10.6 and 10.12 for the following procedure.
Perform the following:
1. Open the Drawer
2. Remove the Oil Cartridge (PL 8.1)
3. Remove the Front Cover (PL 8.1)
4. Remove the Top Cover (PL 8.2)
5. Close the Drawer.
6. Switch the power off, then on.
Procedure
Enter dC330 010-027 External Heat Roll Retract Motor
nal Heat Roll Retract Motor energizes.
Y N
Press Stop. + 24 VDC is measured at P/J413A-1 on the IOT Drive PWB.
Y N
+24 VDC is measured between P/J45-11 on the Distribution PWB and GND.
Y N
Replace the Distribution PWB
Go to Flag 1 on BSD 10.6 and check the harness for an open circuit. If the harness is
good, replace the External Heat Roll Retract Motor
NOTE: In the next step, the drop in voltage may be momentary or may be for a longer
duration, but a drop in voltage should occur.
Press Start. The voltage at P/J413A-1 drops to less than +20.0 VDC.
Y N
Replace the IOT Drive PWB (PL
Replace the External Heat Roll Retract Motor
The External Heat Roll Retract Motor stops after several seconds.
Y N
+5 VDC is measured between P/J413A-14 on the IOT Drive PWB and GND.
Y N
Replace the IOT Drive PWB (PL
+5 VDC is measured between P/J413A-14 on the IOT Drive PWB and P/J44-7 on the
Distribution PWB.
Y N
Replace the Distribution PWB (PL
A B
Status Indicator RAPs
10-356 External Heat Roll Retract Failure RAP
(Contact). Press Start. The Exter-
(PL 9.3).
(PL 8.4).
9.2).
(PL 8.4).
9.2).
9.3).
A B
Go to Flag 2 and Flag 3 on BSD 10.6 and check the harness for an open circuit. If the har-
ness is good, go to Flag 7
harness is good, replace the External Heat Roll Retract Sensor
continues, replace the IOT Drive PWB.
Enter dC330 010-221 External Heat Roll Retract Sensor. Press Start. The
cates H.
Y N
Check the following:
• The actuator (on the Camshaft) for the External Heat Roll Retract Sensor. If the actu-
ator binds, ensure that the Bracket
from damage.
• Go to Flag 3 on BSD 10.6 and check the harness for a short circuit.
• If the harness is good, replace the External Heat Roll Retract Sensor
Check the following:
• Missing and/or broken External Heat Roll Retract Motor gear
• Binding in the linkage of the contact/retract mechanism for the External Heat Roll
• Loose connectors and pins for the External Heat Roll Retract Motor and Sensor
1/05
2-156
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on BSD 10.6 and check the harness for an open circuit. If the
(PL
(PL 8.4) on which the sensor is mounted is free
(PL 8.4)
DocuColor 12/DCCS50
8.4). If the problem
display indi-
(PL 8.4)
(PL 8.4)
Reissue