2KA
1-4-34
C2400 Eject motor error
After the motor drive ON signal is output
and 2 s elapses, the rated speed reach
signal is not input continuously for 1 s.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC25 on
the engine PWB and the connector on the
eject 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 eject
motor.
Run maintenance item U030 and check if
the eject motor operates when YC25-A5
(remote signal) on the engine PWB goes
low. If not, replace the eject motor.
Defective engine
PWB.
Run maintenance item U030 and check if
YC25-A5 (remote signal) on the engine
PWB goes low. If not, replace the engine
PWB.
C2500 MP motor error
After the motor drive ON signal is output
and 2 s elapses, the rated speed reach
signal is not input continuously for 1 s.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC24 on
the engine PWB and the connector on the
MP motor, and the continuity across the con-
nector terminals. Repair or replace if neces-
sary.
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 MP
motor.
Run maintenance item U030 and check if
the MP motor operates when YC24-2
(remote signal) on the engine PWB goes
low. If not, replace the MP motor.
Defective engine
PWB.
Run maintenance item U030 and check if
YC24-3 (remote signal) on the engine PWB
goes low. If not, replace the engine PWB.
C2550 Paper conveying motor error
After the motor drive ON signal is output
and 2 s elapses, the rated speed reach
signal is not input continuously for 1 s.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC2 on
the feed PWB and the connector on the
paper conveying 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 paper
conveying motor.
Run maintenance item U030 and check if
the motor operates. If not, replace the paper
conveying motor.
Defective PWB. Replace the feed PWB or engine PWB and
check for correct operation.
Code Contents
Remarks
Causes Check procedures/corrective measures