2WA/2NJ/2RK
7-109
J0508: No paper feed from the duplex section
The registration sensor does not turn on after duplex motor 2 turns on during paper feed from the duplex sec-
tion.
5 (In case of the paper bun-
dle jam) Checking the PF
retard spring
The PF retard spring
comes off.
Reattach the PF retard
spring.
6 Checking the PF paper
feed sensor
The PF paper feed sensor
does not operate properly.
Reattach PF feed sensor 1
and 2 and reinsert the con-
nector. If not repaired,
replace the sensor.
7 Checking the PF paper
feed clutch
The PF paper feed clutch
does not operate properly.
Execute U247 [LCF] >
[Clutch] > [C1 Clutch] or [C2
Clutch]. If PF feed clutch 1 or
2 does not properly operate,
reattach it and reinsert the
connector. If not repaired,
replace the clutch.
Executing
U247
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.• PF feed sen-
sor 1, 2 - PF main PWB• PF
feed clutch 1, 2 - PF main
PWB• PF main PWB - Engine
PWB
Wiring dia-
gram
9 Replacing the PF main
PWB
The PF main PWB is
faulty.
Replace the PF main PWB. Detaching
and reat-
taching the
PF main
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 Performing the prior stan-
dard check items
There is a mechanical
cause such as the dirty
guide, etc.
Perform the prior standard
check items.
2 Checking the paper path The paper is caught with a
piece of paper, etc.
A piece of paper or the for-
eign objects are adhered on
the conveying path, or if the
parts such as the guide or
the actuator has burrs,
remove them.
Step Check description Assumed cause Measures Reference
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