2P7/2R0/3PN
1-4-19
7000 Toner motor error
During driving the toner motor,
an over-current detection sig-
nal is detected at intervals of
10 ms as for 300 accumula-
tion.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Toner motor and drum PWB (YC4)
Drum PWB and relay-L PWB (YC3)
Relay-L PWB and engine PWB (YC2)
Defective toner
motor.
Replace the toner motor.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation (see page 1-5-40).
7100 Toner sensor error
Sensor output value of 930 or
more continuously for 5 s.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Toner sensor and drum PWB (YC3)
Drum PWB and relay-L PWB (YC3)
Relay-L PWB and engine PWB (YC2)
Defective toner
sensor.
Replace the developer unit.
(See Page 1-5-14)
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation (see page 1-5-40).
7400 Developer unit non-install-
ing error
Sensor output value of 31 or
less continuously for 5 s.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Developer unit and drum PWB (YC3)
Drum PWB and relay-L PWB (YC3)
Relay-L PWB and engine PWB (YC2)
Defective toner
sensor.
Replace the developer unit.
(See Page 1-5-14)
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation (see page 1-5-40).
7410 Drum unit type mismatch
error
The drum PWB EEPROM
does not communicate
normally.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Drum unit and drum connect PWB (YC1)
Drum connect PWB and relay-L PWB (YC3)
Relay-L PWB and engine PWB (YC2)
Defective toner
sensor.
Replace the drum unit.
(See Page 1-5-14)
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation (see page 1-5-40).
Code Contents Causes
Check procedures/
corrective measures