2MN/2N1
1-4-45
2850 Transfer belt motor sensor
error
The signal is not received for
100 ms in succession.
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.
Transfer motor and feed PWB (YC13)
Feed PWB (YC1) to engine PWB(YC6)
Defective transfer
motor.
Replace the transfer motor.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation (see page 1-5-49).
2860 Transfer belt sensor error
The signal is not received for
100 ms in succession.
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.
Transfer belt sensor and engine PWB (YC3)
Defective transfer
belt sensor.
Replace the transfer belt sensor.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation (see page 1-5-49).
2950 Motor control PWB commu-
nication error
A communication error from
the motor control PWB is
detected 10 times in succes-
sion.
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.
Motor control PWB (YC3) and engine PWB
(YC9)
Defective motor
control PWB.
Replace the motor control PWB and check
for correct operation.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation (see page 1-5-49).
4001 Polygon motor K synchroni-
zation error
After polygon motor K is
driven, the ready signal does
not turn to L within 30 s.
The polygon motor speed
won’t stabilize within 10 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.
Polygon motor K and LSU relay PWB (YC4)
LSU relay PWB (YC4) and engine PWB
(YC12)
Defective polygon
motor K.
Replace the laser scanner unit (see page 1-
5-17).
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation (see page 1-5-49).
Code Contents Causes
Check procedures/
corrective measures