Kyocera TASKalfa 6501i Service Manual page 475

Code Contents
7301 Toner hopper motor error
During the Toner hopper
motor is driven, an event in
which a locking was detected
for 5 times in 200 ms intervals
has occurred in 30 sets.
7401 Developer unit type mis-
match error
Improper adaptation of the
machine and developer unit is
detected.
7411 Drum unit type mismatch
error
Improper adaptation of the
machine and developer unit is
detected.
Related parts
Toner hopper
motor
Screw sensor
Engine PWB
Different type of the Install the developer unit of the correct type.
developer unit is
installed.
Developer unit
Different type of the Install the drum unit of the correct type.
drum unit is
installed.
Drum unit
1-4-115
Check procedures/
corrective measures
1. If the motor won't rotate, confirm that the
wiring connector is firmly connected
and, if necessary, connect the connector
all the way in.
Toner hopper motor and Front PWB
(YC5)
Front PWB (YC3) and Engine PWB
(YC7)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the toner hopper motor.
1. Check that the sensor is correctly
positioned.
2. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Screw sensor and Front PWB (YC5)
Front PWB (YC2) and Engine PWB
(YC7)
3. Replace the Screw sensor.
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
83).
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Developer unit and Front PWB (YC7)
Front PWB (YC2) and Engine PWB
(YC8)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Drum unit and Front PWB (YC6)
Front PWB (YC2) and Engine PWB
(YC8)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
2N8/2N7