7100 Toner Sensor Error - Kyocera TASKalfa 1800 Service Manual

Code Contents
7100 Toner sensor error
Sensor output value of 8 or
less.
Related parts
Toner sensor
Toner motor
Main/Engine PWB
1-4-32
2NC/2NF/2NG/2NN/3P7/3P8/3P9
Check procedures/
corrective measures
1. Check the toner sensor output by U150
(see page 1-3-53).
2. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Toner sensor and main/engine PWB
(YC9)
3. If the wiring is disconnected, shorted or
grounded, replace the wiring.
4. Check that the gears of the Developer
unit are not damaged and the spiral can
rotate.
5. Replace the Developer unit (see page 1-
5-35).
1. Draw out the toner container and
execute U135 to check the toner motor
operation (see page 1-3-50).
2. Check the drive gear can rotate or they
are not unusually loaded and, if
necessary, replace.
3. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Toner motor and main/engine PWB
(YC12)
4. If the wiring is disconnected, shorted or
grounded, replace the wiring.
5. Replace the Toner motor.
1. Check the main/engine software and
upgrade to the latest, if necessary.
2. Replace the main/engine PWB (see
page 2-2-11).