Kyocera TASKalfa 7002i Service Manual page 1003

Step Check description
16 Checking the connection
17 Replacing the PF main
PWB
18 Replacing the feed PWB
19 Replacing the engine PWB The engine PWB is faulty.
J1311/J1312: Middle sensor stay jam
The middle sensor does not turn off after the feed sensor (cassette 1) / the conveying sensor (cassette 2)
turns off or on during paper feed from cassette 1, 2.
Step Check description
1 Checking the paper path
2 (When the paper skew
occurs) Relocating the
paper width guides
3 (When the paper skew
occurs) Checking the con-
veying guide
Assumed cause
The connector is not prop-
erly connected or the wire
is faulty.
The PF main PWB is
faulty.
The feed PWB is faulty.
Assumed cause
The paper is caught with a
piece of paper, etc.
The locations of the paper
width guides do not fit with
the paper size.
The paper is caught with
the conveying guide.
7-143
Measures
Clean the terminal of the fol-
lowing wire connectors and
reinsert the connectors.
Replace the wire when it has
no continuity.• Middle sensor
- Feed PWB• Vertical convey-
ing motor - Feed PWB• PF
feed clutch - PF main PWB
(Side feeder)• PF conveying
motor - PF main PWB (Side
feeder)• PF main PWB (Side
Feeder) - Engine PWB• Feed
PWB - Engine PWB
Replace the PF main PWB.
Replace the feed PWB.
Replace the engine PWB.
Measures
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.
Relocate the paper width
guides to fit them with the
paper size.
Reinstall the conveying
guide. If there are burrs on
the conveying surface of the
conveying guide, remove
them. If not repaired, replace
it.
2WA/2NJ/2RK
Reference
Wiring dia-
gram
Detaching
and reat-
taching the
PF main
PWB (Side
feeder)
Detaching
and Reat-
taching the
engine
PWB
Reference