Kyocera TASKalfa 7002i Service Manual page 1260

Step Check description
5 Checking the connection
6 Replacing the fuser unit
7 Replacing the current
PWB
8 Replacing the engine PWB The engine PWB is faulty.
9 Replacing the feed PWB
10 Replacing the IH PWB
C6020: Fuser center thermistor high temperature error
The fuser center thermistor detects 240°C / 464°F or more for 1s.
Step Check description
1 Reinstalling the fuser unit
2 Firmware upgrade
Assumed cause
The connector is not prop-
erly connected. Or, the
wire is faulty.
The temperature cannot
be detected properly due
to the broken thermostat or
the thermistor error.
The current PWB is faulty.
The feed PWB is faulty.
The IH PWB is faulty.
Assumed cause
The connector of the fuser
unit is not properly con-
nected.
The firmware is not the lat-
est version.
7-400
Measures
Clean the terminal of the fol-
lowing wire connectors and
reconnect the connectors. If
there is no continuity, replace
the wire. • Connector of the
fuser unit - Engine PWB •
Connector of the fuser unit -
IH PWB • IH PWB - Engine
PWB • IH PWB - Feed PWB
Replace the fuser unit.
Replace the current PWB.
Replace the engine PWB.
Replace the feed PWB.
Replace the IH PWB.
Measures
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
fuser unit
Detaching
and reat-
taching the
engine
PWB
Detaching
and reat-
taching the
fuser IH
PWB
Reference
Detaching
and reat-
taching the
fuser unit
Firmware
Update