2WA/2NJ/2RK
7-108
J0523/J0524: No paper feed from the large capacity paper feeder
The PF feed sensor does not turn on when passing the certain time after the PF feed clutch turns on during
paper feed from the large capacity feeder (cassette 3, 4).
7 Checking the feed sensor The feed sensor does not
properly operate.
Turn feed sensor 1 and 2 on
and off manually and check
the indication at U031
[Casstte1 Feed] or [Casstte2
Feed]. If feed sensor 1or 2
does not properly operate,
clean and reattach it and rein-
sert the connector. If not
repaired, replace the sensor.
Executing
U031
8 Checking the connection The connector is not prop-
erly connected or the wire
is faulty.
Clean the terminal of the fol-
lowing wire connectors and
reinsert the connectors.
Replace the wire when it has
no continuity.• Feed sensor 1,
2 - Feed PWB• Feed PWB -
Engine PWB
Wiring dia-
gram
9 Replacing the feed PWB The feed PWB is faulty. Replace the feed PWB.
10 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching
and Reat-
taching the
engine
PWB
Step Check description Assumed cause Measures Reference
1 (In case of the paper bun-
dle jam) Checking the
paper
The cut-end of the paper is
crushed.
Fan the paper well and load it
by reversing the paper direc-
tion
2 (In case of the paper bun-
dle jam) Checking the
paper
The paper leading edge is
bent.
Remove the bent paper.
3 (In case of the paper bun-
dle jam) Checking the
paper
foreign objects are on the
paper.
Remove the paper with for-
eign objects.
4 (In case of the paper bun-
dle jam) Checking the
retard pulley
The paper separation force
of the retard pulley is not
enough.
Clean the retard pulley sur-
face. If it is worn down,
replace it.
Detaching
and reat-
taching the
pickup pul-
ley, feed
pulley and
retard pul-
ley
Step Check description Assumed cause Measures Reference
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