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8-104 Tray 1 Prefeed Sensor On Jam RAP
The Tray 1 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 8.1, BSD 7.5, and BSD 8.10 for the following procedure.
•
Check for any obstructions in the paper path.
•
Pull out Paper Tray 1.
•
Open the Lower Left Door
(PL
2.8).
•
Open the Tray 1 Feeder
(PL
2.4).
Procedure
Cheat the L/H Cover Interlock Switch. Enter dC330 008-104 Tray 1 Pre feed Sensor. Press
Start. Block the Tray 1 Prefeed 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 8.1 and check the harness for a short circuit. If the harness is
good, replace the Tray 1 Prefeed Sensor
Connect the meter from P/J414A-A4 on the IOT Drive PWB to machine frame. Block the
Tray 1 Prefeed Sensor with a sheet of paper. The voltage at P/J414A-A4 goes from +5
VDC when the sensor is not blocked, to less than +1.0 VDC when the senor is
blocked.
Y
N
There is +5 VDC between P/J414A-A5 and P/J414A-A3 on the IOT Drive PWB.
Y
N
Go to
Flag 2
on BSD 8.1 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 8.1 and check the harness for an open circuit. If the
harness is OK, replace the Tray 1 Prefeed Sensor
replace the IOT Drive PWB
(PL
Replace the IOT Drive PWB
(PL
9.2).
Press Stop. Enter dC330 008-008 Tray 1 Feed/Lift Motor (Feed). Press Start and Stop sev-
eral times. The Tray 1 Feed/Lift Motor energizes and deenergizes.
Y
N
Go to the
7-281 Tray 1 Lift Motor Failure
Press Stop. Enter dC330 008-006 Tray 1 Nudger Roll Solenoid. Press Start and Stop sev-
eral times. The Tray 1 Nudger Solenoid energizes.
Y
N
Press the Stop button. There is +24 VDC at P/J414A-A1 on the IOT Drive PWB.
Y
N
Replace the IOT Drive PWB
(PL
A
B
Reissue
DocuColor 12/DCCS50
(PL
2.5).
(PL
9.2).
(PL
2.5). If the problem continues,
9.2).
RAP.
9.2).
A
B
There is +24 VDC at P/J414A-A2 on the IOT Drive PWB.
Y
N
Go to
Flag 7
on BSD 7.5 and check the harness for an open circuit. If the harness is
good, replace the Tray 1 Nudger Solenoid
Press the Start button. The voltage at P/J414A-A2 goes to less than +2.0 VDC.
Y
N
Replace the IOT Drive PWB
Replace the Tray 1 Nudger Solenoid
Check/replace the Tray 1 Feeder Assembly. Replace any components that are worn, broken,
binding, or slipping
(PL
2.4).
1/05
8-104 Tray 1 Prefeed Sensor On Jam RAP
2-81
(PL
2.5).
(PL
9.2).
(PL
2.5).
Status Indicator RAPs
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Troubleshooting
