Kyocera TASKalfa 7002i Service Manual page 1278

C6610: Fuser release sensor error
1. The fuser release sensor does not turn off when passing 5s from the instruction to the fuser release motor
to reduce the fuser pressure.
2. The fuser release sensor does not turn on when passing 5s from the instruction to the fuser release motor
to increase the fuser pressure.
Step Check description
1 Reinstalling the fuser unit
2 Checking the motor opera-
tion / connection
3 Replacing the fuser unit
4 Firmware upgrade
6 Replacing the engine PWB The engine PWB is faulty.
Assumed cause
The connector of the fuser
unit is not properly con-
nected.
The connector is not prop-
erly connected. Or, the
wire is faulty.
The fuser release motor or
the fuser release sensor,
etc. is faulty.
The firmware is not the lat-
est version.
7-418
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.
Execute U030 [Fuser
Release] and check the fuser
release motor operation. If
the motor does not properly
operate, clean the terminal of
the following wire connectors
and reconnect them. If there
is no continuity, replace the
wire. • Connector of the fuser
unit - Engine PWB
Replace the fuser unit.
Upgrade the engine firmware
to the latest version
Replace the engine PWB.
2WA/2NJ/2RK
Reference
Detaching
and reat-
taching the
fuser unit
Wiring dia-
gram
Detaching
and reat-
taching the
fuser unit
Firmware
Update
Detaching
and reat-
taching the
engine
PWB