2JZ/2JX/2JV/2H7-1
1-4-38
C2274 Drum position sensor Y error
While the drum rotates two turns, no sig-
nal is input to the sensor.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC3 on
the sub front PWB and the connector of the
drum unit Y, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective drum
position sensor Y.
Replace the drum unit Y (see page 1-5-35).
Defective PWB. Replace the sub front PWB or engine PWB
and check for correct operation.
C2300 Fuser motor error
After the motor drive ON signal is output
and 1 s elapses, the rated speed reach
signal is not input continuously for 2 s.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC25 on
the engine PWB and the connector of the
fuser motor, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective drive
transmission sys-
tem.
Check if the rollers and gears rotate
smoothly. If not, grease the bushings and
gears. Check for broken gears and replace if
any.
Defective fuser
motor.
Run maintenance item U030 and check if
the fuser motor operates when YC25-B4
(remote signal) on the engine PWB goes
low. If not, replace the fuser motor.
Defective engine
PWB.
Run maintenance item U030 and check if
YC25-B4 (remote signal) on the engine
PWB goes low. If not, replace the engine
PWB.
C2351 Cleaning motor K error
After the motor drive ON signal is output
and 1 s elapses, the rated speed reach
signal is not input continuously for 2 s.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC16 on
the engine PWB and the connector of the
cleaning motor K, and the continuity across
the connector terminals. Repair or replace if
necessary.
Defective drive
transmission sys-
tem.
Check if the rollers and gears rotate
smoothly. If not, grease the bushings and
gears. Check for broken gears and replace if
any.
Defective cleaning
motor K.
Run maintenance item U030 and check if
the cleaning motor K operates when YC16-
B13 (remote signal) on the engine PWB
goes low. If not, replace the cleaning motor
K.
Defective engine
PWB.
Run maintenance item U030 and check if
YC16-B13 (remote signal) on the engine
PWB goes low. If not, replace the engine
PWB.
Code Contents
Remarks
Causes Check procedures/corrective measures
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