Kyocera TASKalfa 7002i Service Manual page 1271

Step Check description
4 Replacing the fuser unit
5 Replacing the engine PWB The engine PWB is faulty.
6 Replacing the feed PWB
7 Checking the IH core
motor
8 Replacing the IH unit
9 Replacing the IH PWB
10 Checking the fuser edge
fan motor
C6230: Fuser edge thermistor broken
The fuser edge thermistor detects 37°C / 98°or less for 1s when the fuser center thermistor detects 100°C /
212°F or more for 1s during warm-up.
Step Check description
1 Removing foreign material
2 Reinstalling the fuser unit
Assumed cause
The temperature is not
properly detected due to
the broken wire or the
thermistor error in the fuser
unit.
The feed PWB is faulty.
The small size shield plate
of the IH core motor does
not shift to the proper posi-
tion.
The IH unit is faulty.
The IH PWB is faulty.
Dust accumulates on the
fuser edge fan motor, or
the motor is not properly
attached.
Assumed cause
There is foreign material
between the fuser unit and
the IH unit. Or, foreign
material adheres on the
heat roller.
The connector of the fuser
unit is not properly con-
nected.
7-411
Measures
Replace the fuser unit.
Replace the engine PWB.
Replace the feed PWB.
Execute U030 [IH Core] and
check the IH core motor rota-
tion. If the motor does not
properly operate, repair it.
Replace the IH unit.
Replace the IH PWB.
Clean the front / rear fuser
edge fan motors and reattach
them.
Measures
Remove foreign objects if
they are in between the fuser
unit and the IH unit or on the
heat roller. After that, rein-
stall the fuser unit.
Check if the pins of the con-
nector of the fuser unit are
not bent, and correct the pins
if bent. If there is no problem
at the pins, reinstall the fuser
unit so that the connector is
firmly connected.
2WA/2NJ/2RK
Reference
Detaching
and reat-
taching the
fuser unit
Detaching
and reat-
taching the
engine
PWB
Detaching
and reat-
taching the
IH unit
Detaching
and reat-
taching the
fuser IH
PWB
Fan
Motors
Attach-
able Direc-
tion
Reference
Detaching
and reat-
taching the
fuser unit
Detaching
and reat-
taching the
fuser unit