Kyocera TASKalfa 7002i Service Manual page 969

Step Check description
5 (In case of the paper bun-
dle jam) Checking the PF
retard spring
6 Checking the PF paper
feed sensor
7 Checking the PF paper
feed clutch
8 Checking the connection
9 Replacing the PF main
PWB
10 Replacing the engine PWB The engine PWB is faulty.
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.
Step Check description
1 Performing the prior stan-
dard check items
2 Checking the paper path
Assumed cause
The PF retard spring
comes off.
The PF paper feed sensor
does not operate properly.
The PF paper feed clutch
does not operate properly.
The connector is not prop-
erly connected or the wire
is faulty.
The PF main PWB is
faulty.
Assumed cause
There is a mechanical
cause such as the dirty
guide, etc.
The paper is caught with a
piece of paper, etc.
7-109
Measures
Reattach the PF retard
spring.
Reattach PF feed sensor 1
and 2 and reinsert the con-
nector. If not repaired,
replace the sensor.
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.
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
Replace the PF main PWB.
Replace the engine PWB.
Measures
Perform the prior standard
check items.
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.
2WA/2NJ/2RK
Reference
Executing
U247
Wiring dia-
gram
Detaching
and reat-
taching the
PF main
PWB
Detaching
and Reat-
taching the
engine
PWB
Reference