Kyocera TASKalfa 4500i Service Manual page 345

Code Contents
6910 Engine software ready error
The device won't engage in
ready state in 60 minutes after
warming-up has began.
6940 Heater fan motor error
When the heater fan motor is
driven, the alarm signal is
detected for 5 s continuously.
7001 Toner motor error
During the toner motor is
driven, an event in which a
locking was detected for 5
times in 200 ms intervals has
occurred in 30 sets.
7101 Toner sensor error
Sensor output value of 60 or
less or 944 or more continued
for 3 s.
7200 Broken outer temperature
sensor wire
The sensor input sampling is
greater than 230.
Causes
Defective engine Install the engine software.
software.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-47).
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. Heater fan motor and feed PWB 1 (YC11)
Feed PWB 1 (YC2) and engine PWB (YC5)
Defective heater Replace the heater fan motor.
fan motor.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-47).
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. Toner motor and engine PWB (YC27)
Defective toner Replace the toner motor.
motor.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-47).
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. Toner sensor and front PWB (YC7)
Front PWB (YC2) and engine PWB (YC8)
Defective toner Replace developer unit (see page 1-5-28).
sensor.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-47).
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. Outer temperature sensor and front PWB
(YC8)
Front PWB (YC2) and engine PWB (YC8)
Defective outer Replace outer temperature sensor.
temperature sen-
sor.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-47).
1-4-41
2LL/2LJ/2LH-2
Check procedures/
corrective measures