Kyocera TASKalfa 7002i Service Manual page 1117

Step Check description
11 Checking the connection
12 Replacing the front PWB
13 Replacing the engine PWB The engine PWB is faulty.
J4901/J4902/J4903/J4904/J4905/J4906/J4907/J4908/J4909: BR conveying sensor 1
non arrival jam
BR conveying sensor 1 does not turn on after the exit sensor turns off during paper feed from cassette 1-7, the
duplex section or the MP tray.
Step Check description
1 Checking the paper con-
veying parts
2 (When the paper skew
occurs) Checking the
paper path
3 (When the paper skew
occurs) Checking the actu-
ator and the spring
4 (When the paper skew
occurs) Checking the con-
veying guide
5 Checking the conveying
guide
Assumed cause
The connector is not prop-
erly connected or the wire
is faulty.
The front PWB is faulty.
Assumed cause
The roller, guide, etc. are
not properly attached or
they are dirty, deformed or
worn down.
The paper is caught with a
piece of paper, etc.
The actuator does not
operate properly.
The paper is caught with
the conveying guide.
The foreign objects such
as toner are on the con-
veying guide.
7-257
Measures
Clean the terminal of the fol-
lowing wire connectors and
reinsert the connectors.
Replace the wire when it has
no continuity.• Switchback
sensor - Front PWB• Feed-
shift solenoid - Front PWB•
Switchback motor - Front
PWB• Front PWB - Engine
PWB
Replace the front PWB.
Replace the engine PWB.
Measures
Clean and correct the con-
veying parts such as the
roller or the guide, and reat-
tach them. If not repaired,
replace them.
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.
The actuator or the spring is
deformed, or if not properly
operate, replace it.
Reinstall the conveying
guide. If there are burrs on
the conveying surface of the
conveying guide, remove
them. If not repaired, replace
it.
Clean the conveying guide.
Or replace it.
2WA/2NJ/2RK
Reference
Detaching
and Reat-
taching the
engine
PWB
Reference