J4019 Registration Sensor Stay Jam - Kyocera TASKalfa 7002i Service Manual

Step Check description
14 Checking the connection
15 Replacing the feed PWB
16 Replacing the engine PWB The engine PWB is faulty.
J4019: Registration sensor stay jam
The registration sensor does not turn off after the MP feed sensor turns on or off during paper feed from the
MP tray.
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
4 (In case of multi-feeding)
Checking the feed pulley
and the retard pulley
5 Checking the conveying
rollers
Assumed cause
The connector is not prop-
erly connected or the wire
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.
The paper fanning is not
enough.
The paper conveying force
of the conveying rollers is
insufficient.
7-233
Measures
Clean the terminal of the fol-
lowing wire connectors and
reinsert the connectors.
Replace the wire when it has
no continuity.• Registration
sensor - Feed PWB• Regis-
tration motor - Feed PWB•
Feed PWB - Engine 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.
Clean or replace the feed pul-
ley and the retard pulley.
Clean or replace the paper
conveying rollers.
2WA/2NJ/2RK
Reference
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