10-102 Pre Fuser Sensor On Jam Rap; 10-103 Pre Fuser Sensor On Rap - Xerox DocuColor 12/DCCS50 Service Manual

10-102 Pre Fuser Sensor On Jam RAP

The Pre Fuser Sensor did not actuate within the specified time after the Pre IBT Sensor actu-
ated.
Initial Actions
Refer to BSD 10.1 and 10.12 for the following procedure.
Check for the following:
• Clean the Pre Fuser and Pre IBT Sensor.
• Skewed sheets with LE corner damage.
• Obstructions in the paper path or damage on lead edge of sheets
• Contamination on the 2nd BTR Roll and/or Vacuum Transport.
• Ensure that connectors P/J420 and
and the Pre Fuser Sensor, and there are no obvious crimped or broken wires.
Procedure
Enter dC330 010-100 Pre Fuser Sensor. Press Start. Open the Drawer and block the Pre
Fuser Sensor with a sheet of paper. Close the Drawer. The display changes from H to L.
Y N
The display indicates a constant H.
Y N
Go to Flag 1 on BSD 10.1 and check the harness for a short circuit. If the harness is
good, replace the Pre Fuser Sensor
Open the Drawer (the paper should still be blocking the sensor). Connect the meter from
P/J420-A11 on the IOT Drive PWB to GND. Close the drawer. The voltage at P/J420-
A11 goes from +5 VDC when the drawer is open, to less than +1.0 VDC when the
drawer is closed.
Y N
There is +5 VDC between P/J420-A12 and P/J420-A10 on the IOT Drive PWB.
Y N
Go to Flag 2 on BSD 10.1 and check the harness for a short circuit. If the har-
ness is good, replace the IOT Drive PWB
Go to Flag 1 and Flag 2 on BSD 10.1 and check the harness for an open circuit. If
the harness is good, replace the Pre Fuser Sensor
ues, replace the IOT Drive PWB
Replace the IOT Drive PWB (PL 9.2).
Check/replace the following components until the problem is resolved. Replace any compo-
nents that are worn, broken, binding, or slipping:
• Drives for the 2nd BTR Roll (PL 7.10)
• 2nd BTR Roll (PL 7.10)
• Guide (PL 7.10)
Reissue
DocuColor 12/DCCS50
P/J157 are seated correctly on the IOT Drive PWB
(PL 7.10).
(PL 9.2).
(PL 7.10). If the problem contin-
(PL 9.2).

10-103 Pre Fuser Sensor On RAP

The Pre Fuser Sensor detected paper when closing the Front Cover or when power was
switched on.
Initial Actions
Refer to BSD 10.1 and 10.12 for the following procedure.
Check the following:
• Check for paper on the Pre Fuser Sensor
• Clean the Pre Fuser Sensor
• Ensure that connectors P/J420
and the Pre Fuser Sensor, and there are no obvious crimped or broken wires.
• Ensure the Front Cover is closed. Switch the power Off then On.
Procedure
Enter dC330 010-100 Pre Fuser Sensor. Press Start. The display indicates H.
Y N
Flag 1 on BSD 10.1 and check the harness for a short circuit. If the harness is good,
Go to
replace the Pre Fuser Sensor
If the fault code is present and can not be cleared, replace the IOT Drive PWB
fault code is not present and is occurring intermittently, go to
harness for an intermittent short circuit. If the harness is OK, replace the Pre Fuser Sensor
7.10). If the problem continues, replace the IOT Drive PWB
1/05
10-102 Pre Fuser Sensor On Jam RAP, 10-103 Pre
2-135
and P/J157 are seated correctly on the IOT Drive PWB
(PL 7.10).
Flag 1 on BSD 10.1 and check the
(PL 9.2).
Status Indicator RAPs
(PL 9.2). If the
(PL