J4111/J4112/J4113 - Kyocera TASKalfa 7002i Service Manual

Step Check description
8 Checking the connection
9 Replacing the relay PWB
10 Replacing the feed PWB
11 Replacing the engine PWB The engine PWB is faulty.
J4111/J4112/J4113/J4114/J4115/J4116/J4117/J4118/J4119: Loop sensor stay jam
The loop sensor does not turn off when passing the certain time after the registration sensor turns on during
paper feed from cassette 1-7, the duplex section or the MP tray.
Step Check description
1 Performing the prior stan-
dard check items
2 (When the paper skew
occurs) Checking the
paper path
3 (When the paper skew
occurs) Checking the con-
veying guide
4 (When paper skews)
Resetting the paper width
guides or the paper size
guide
5 Cleaning the transfer sep-
aration needles
Assumed cause
The connector is not prop-
erly connected or the wire
is faulty.
The relay PWB is faulty.
The feed 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.
The paper is caught with
the conveying guide.
Setting position of the
paper width guides or the
paper size guide does not
match the paper size.
Paper rolled up to the
transfer belt by dirt of the
transfer separation needle.
7-236
Measures
Clean the terminal of the fol-
lowing wire connectors and
reinsert the connectors.
Replace the wire when it has
no continuity.• Loop sensor -
Relay PWB• Registration
motor - Feed PWB• Relay
PWB - Feed PWB• Feed
PWB - Engine PWB
Replace the relay PWB.
Replace the feed 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.
Reinstall the conveying
guide. If there are burrs on
the conveying surface of the
conveying guide, remove
them. If not repaired, replace
it.
Reset the paper width guides
or the paper size guide
matching the paper size.
Clean the transfer separation
needles.
2WA/2NJ/2RK
Reference
Wiring dia-
gram
Detaching
and Reat-
taching the
engine
PWB
Reference