8-114 Tray 3 Prefeed Sensor On Jam Rap - Xerox DocuColor 12/DCCS50 Service Manual

8-114 Tray 3 Prefeed Sensor On Jam RAP

The Tray 3 Prefeed Sensor did not detect paper within the specified time after the prefeed
started.
Initial Actions
• Ensure that the No Paper Sensor is properly installed in the Paper Tray Feed Head.
• Refer to BSD 7.7, BSD 8.3, and BSD 8.10 for the following procedure.
• Check for any obstructions in the paper path.
• Pull out Paper Tray 3
• Open the Lower Left Door (PL 2.8).
• Open the Tray 3 Feeder (PL 2.4).
Procedure
Cheat the L/H Cover Interlock Switch. Enter dC330 008-114 Tray 3 Pre feed Sensor and
press Start. Block the Tray 3 Prefeed Sensor with a sheet of paper. The
from H to L.
Y N
The display indicates a constant H.
Y N
Go to Flag 1 on BSD 8.3 and check the harness for a short circuit. If the harness is
good, replace the Tray 3 Prefeed Sensor
Connect the meter from P/J415A-11 on the IOT Drive PWB to machine frame. Block the
Tray 3 Prefeed Sensor with a sheet of paper. The voltage at P/J415A-11 goes from +5
VDC when the sensor is not blocked, to less than +1.0 VDC when the sensor is
blocked.
Y N
There is +5 VDC between P/J803B-5 and P/J803B-3 on the Tray PWB.
Y N
Go to Flag 2 on BSD 8.3 and check the harness for a short circuit. If the har-
ness is good, replace the Tray PWB
Go to Flag 1 and Flag 2 on BSD 8.3 and check the harness for an open circuit. If the
harness is OK, replace the Tray 3 Prefeed Sensor
replace the Tray PWB (PL 9.3).
Replace the Tray PWB (PL 9.3).
Enter dC330 008-018 Tray 3 Feed/Lift Motor (Feed). Press Start and Stop several times.
The Tray 3 Feed/Lift Motor energizes and deenergizes.
Y N
Go to the 7-283 Tray 3 Lift Motor Failure RAP
Enter dC330 008-016 Tray 3 Nudger Roll Solenoid. Press Start and Stop several times.
The Tray 3 Nudger Solenoid energizes.
Y N
Press the Stop button. There is +24 VDC at P/J803B-1 on the Tray PWB.
Y N
Replace the Tray PWB (PL 9.3).
A B
Status Indicator RAPs
8-114 Tray 3 Prefeed Sensor On Jam RAP
display changes
(PL 2.5).
(PL 9.3).
(PL 2.5). If the problem continues,
manuals4you.com manuals4you.com
A B
There is +24 VDC at P/J803B-2 on the Tray PWB.
Y N
Go to Flag 7 on BSD 7.7 and check the harness for an open circuit. If the harness is
good, replace the Tray 3 Nudger Solenoid
Press Start. The voltage at P/J803B-2 goes to approximately 0 VDC.
Y N
Press Start. There is +5 VDC at P/J801B-10 of the Tray PWB.
Y N
Go to Flag 8 on BSD 7.7 and check the harness for an open or short circuit. If
the harness is good, replace the IOT Drive PWB
Replace the Tray PWB (PL
Replace the Tray 3 Nudger Solenoid
Enter dC330 008-019 Tray 3 Take Away Feed Clutch. Press Start and Stop several times.
The Tray 3 Takeaway Feed Clutch energizes.
Y N
Press the Stop button. There is +24 VDC at P/J802B-12 on the Tray PWB.
Y N
Replace the Tray PWB (PL
There is +24 VDC at P/J802B-11 on the Tray PWB.
Y N
Go to Flag 5 on BSD 8.3 and check the harness for an open circuit. If the harness is
good, replace the Tray 3 Takeaway Feed Clutch
Press the Start button. The voltage at P/J802B-11 goes to approximately 0 VDC.
Y N
There is +5 VDC at P/J801B-7 on the Tray PWB.
Y N
Go to Flag 6 on BSD 8.3 and check the harness for an open circuit. If the har-
ness is good, replace the IOT Drive PWB.
Replace the Tray PWB (PL
Replace the Tray 3 Takeaway Feed Clutch
Check/replace the Tray 3 Feeder Assembly
broken, binding, or slipping.
1/05
2-86
(PL 2.5).
(PL 9.2).
9.3).
(PL 2.5).
9.3).
(PL 2.7A).
9.3).
(PL 2.7A).
(PL 2.4). Replace any components that are worn,
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