Kyocera TASKalfa 7002i Service Manual page 1259

Step Check description
6 Checking the connection
7 Replacing the high-volt-
age PWB
8 Firmware upgrade
9 Replacing the engine PWB The engine PWB is faulty.
C6000: IH heating error 1
The fuser center thermistor temperature does not reach 100°C / 212°F when passing 60s since warm-up
starts. Or, the ready display temperature is not detected when passing 420s since the fuser center thermistor
temperature reaches 100°C / 212°F during warm-up.
Step Check description
1 Executing U169
2 Removing foreign material
3 Reinstalling the fuser unit
4 Firmware upgrade
Assumed cause
The connector is not prop-
erly connected. Or, the
wire is faulty.
The high-voltage PWB is
faulty.
The firmware is not the lat-
est version.
Assumed cause
The IH setting mis-
matches the power source
specification.
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.
The firmware is not the lat-
est version.
7-399
Measures
Clean the terminal of the fol-
lowing wire connectors and
reinsert the connectors.
Replace the wire when it has
no continuity.• High-voltage
PWB - Engine PWB
Replace the high-voltage
PWB.
Upgrade the engine firmware
to the latest version
Replace the engine PWB.
Measures
Set the fuser destination
same as the IH PWB voltage
at U169.
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.
Upgrade the engine firmware
to the latest version
2WA/2NJ/2RK
Reference
Wiring dia-
gram
Detaching
and reat-
taching the
high-volt-
age PWB
Firmware
Update
Detaching
and reat-
taching the
engine
PWB
Reference
Executing
U169
Detaching
and reat-
taching the
fuser unit
Detaching
and reat-
taching the
fuser unit
Firmware
Update