Xerox DocuColor 12/DCCS50, Service Manual

Page: 1071 / 1617

1/05
8a-9
DocuColor 12/DCCS50
08-192 HCF Take Away Roll Sensor On Jam RAP
High Capacity Feeder
Reissue
08-192 HCF Take Away Roll Sensor On Jam RAP
The control logic detected that paper from the HCF was late to the IOT Takeaway Sensor.
Initial Actions
• Check for obstructions in the paper path
• Check to ensure that the Feed Belt is not overtensioned
• Check for contamination on the HCF TAR Sensor lens
• Ensure that connector P/J405 on the IOT CPU PWB is seated correctly
• Refer to BSD 8.11 and 8.12 in the following procedure.
Procedure
Cheat the L/H Cover Interlock Switch. Enter dC330 008-150 Take Away Sensor and press
Start . Block the Takeaway Sensor with a sheet of paper. The display changes from H to L.
Y N
The display indicates a constant H.
Y
N
Go to Flag 1 on BSD 8.6 and check the harness for a short circuit. If the harness is
good, replace the Takeaway Sensor ( PL 2.8 ).
Connect the meter from P/J420-B5 on the IOT Drive PWB to machine frame. Block the
Takeaway Sensor with a sheet of paper.
The voltage at P/J420-B5 goes from +5 VDC
when the sensor is unblocked, to less than +1.0 VDC when the sensor is blocked.
Y
N
There is +5 VDC between P/J420-B6 and P/J420-B4 on the IOT Drive PWB.
Y N
Go to Flag 2 on BSD 8.6 and check the harness for a short circuit. If the har-
ness is good, replace the IOT Drive PWB ( PL 9.2 ).
Go to Flag 1 and Flag 2 on BSD 8.6 and check the harness for an open circuit. If the
harness is OK, replace the Takeaway (D1-T/A) Sensor ( PL 2.8 ). If the problem con-
tinues, replace the IOT Drive PWB ( PL 9.2 ).
Replace the IOT Drive PWB ( PL 9.2 ).
Enter dC330, 007-080 HCF Feed Motor and press Start.
Check that the HCF Feed Motor energizes. The HCF Feed Motor energizes.
Y N
Check for +24VDC between pins 1 and 2 of J2 on the HCF Control PWB. +24VDC is
measured between pins 1 and 2 of J2 on the HCF Control PWB.
Y N
Check for +24VDC between pins 13 and 17 of P/J45 on the Distribution PWB.
+24VDC is measured between pins 13 and 17 of P/J45 on the Distribution
PWB.
Y
N
Go to Wirenet +24 VDC-1 Figure 29.
Go to Flag 2 on BSD 8.13. Check the connectors and wiring.
Go to Flag 1 on BSD 8.11. Check the connectors and wiring.
If the connectors and wiring are OK, then replace the HCF Feed Motor ( PL 15.10 ).
Enter dC330, 007-078 HCF Feed Clutch and press Start .
Check that the HCF Feed Clutch energizes. The HCF Feed Clutch energizes.
Y N
Check for +24VDC at pins 1 and 3 of J-851 on the HCF Feed Clutch. 24VDC is mea-
sured at pins 1 and 3 of J-851 on the HCF Feed Clutch.
Y
N
Check for +24VDC between pins 11 and 10 of P/J841 on the HCF Control PWB.
+24VDC is measured between pins 11 and 10 of P/J841 on the HCF Control
PWB.
Y
N
Replace the HCF Control PWB ( PL 15.16 ).
Go to Flag 2 on BSD 8.12. Check the connectors and wiring. repair or replace as
required ( PL 15.11 ).
Go to Flag 2 on BSD 8.12. Check the connectors and wiring.
If the connectors and wiring are OK, then replace the HCF Feed Clutch ( PL 15.13 ).
Check /replace the following components until the problem is resolved. Replace any compo-
nents that are worn, broken, binding, loose or slipping.
•
Drive Roll ( PL 15.12 )
• Pinch Roll ( PL 15.15 )
• Feeder Housing ( PL 15.14 )
• Feed/Nudger Roller ( PL 15.14 )
• One Way Clutch ( PL 15.14 )
• Gear Clutch ( PL 15.14 )
• Paper Feeder Harness ( PL 15.11 )
• HCF Mounting Bracket
A
A