Kyocera TASKalfa 7002i Service Manual page 1264

Step Check description
3 Reinstalling the fuser unit
4 Firmware upgrade
5 Checking the connection
6 Replacing the fuser unit
7 Replacing the engine PWB The engine PWB is faulty.
8 Replacing the feed PWB
9 Replacing the IH PWB
10 Checking the connection
11 Replacing the IH unit
Assumed cause
The connector of the fuser
unit is not properly con-
nected.
The firmware is not the lat-
est version.
The connector is not prop-
erly connected. Or, the
wire is faulty.
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 IH PWB is faulty.
The connector is not prop-
erly connected. Or, the
wire is faulty.
The IH unit is faulty.
7-404
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
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 engine PWB.
Replace the feed PWB.
Replace the IH PWB.
Clean the terminal of the fol-
lowing wire connectors and
reconnect the connectors. If
there is no continuity, replace
the wire. • IH unit - IH PWB
Replace the IH unit.
2WA/2NJ/2RK
Reference
Detaching
and reat-
taching the
fuser unit
Firmware
Update
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
Wiring dia-
gram
Detaching
and reat-
taching the
IH unit