Kyocera TASKalfa 7002i Service Manual page 968

Step Check description
7 Checking the feed sensor
8 Checking the connection
9 Replacing the feed PWB
10 Replacing the engine PWB The engine PWB is faulty.
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).
Step Check description
1 (In case of the paper bun-
dle jam) Checking the
paper
2 (In case of the paper bun-
dle jam) Checking the
paper
3 (In case of the paper bun-
dle jam) Checking the
paper
4 (In case of the paper bun-
dle jam) Checking the
retard pulley
Assumed cause
The feed sensor does not
properly operate.
The connector is not prop-
erly connected or the wire
is faulty.
The feed PWB is faulty.
Assumed cause
The cut-end of the paper is
crushed.
The paper leading edge is
bent.
foreign objects are on the
paper.
The paper separation force
of the retard pulley is not
enough.
7-108
Measures
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.
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
Replace the feed PWB.
Replace the engine PWB.
Measures
Fan the paper well and load it
by reversing the paper direc-
tion
Remove the bent paper.
Remove the paper with for-
eign objects.
Clean the retard pulley sur-
face. If it is worn down,
replace it.
2WA/2NJ/2RK
Reference
Executing
U031
Wiring dia-
gram
Detaching
and Reat-
taching the
engine
PWB
Reference
Detaching
and reat-
taching the
pickup pul-
ley, feed
pulley and
retard pul-
ley