2FB/2FC-4
1-5-33
C2300 Fuser motor error
• LOCK signal remains high for 1 s, 1 s
after the fuser motor has turned on.
Poor contact in the
fuser motor con-
nector terminals.
Check the connection of connector YC2 and
YC4 on the duplex PWB. Reinsert the con-
nector. Also check for continuity within the
connector cable. If none, remedy or replace
the cable.
Defective fuser
motor rotation con-
trol circuit.
Replace the fuser motor.
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 duplex
PWB or engine
PWB.
Replace the duplex PWB or the engine
PWB.
C2550 Transfer motor error
• LOCK signal remains high for 1 s, 1 s
after the transfer motor has turned on.
Poor contact in the
transfer motor con-
nector terminals.
Check the connection of connector YC2 and
YC3 on the cassette PWB and YC4 on the
engine PWB. Reinsert the connector. Also
check for continuity within the connector
cable. If none, remedy or replace the cable.
Defective transfer
motor rotation con-
trol circuit.
Replace the transfer motor.
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 cassette
PWB or engine
PWB.
Replace the cassette PWB or the engine
PWB.
C2640 Side feeder drive motor error Overloaded side
feeder drive motor
Verify that the side feeder motor or the paper
feeding mechanism is not interrupted by any
objects.
Defective side
feeder drive motor.
Replace the side feeder drive motor.
Defective side
feeder main PWB.
Replace the side feeder main PWB.
C3100 Scanner carriage problem
• The home position is not correct when
the power is turned on or at the start of
copying using the MP tray.
Defective scanner
PWB.
Replace the scanner PWB and check for
correct operation.
Defective scanner
home position
switch.
Replace the scanner home position switch.
Defective scanner
motor.
Replace the scanner motor.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC2,
YC5 and YC10 on the scanner PWB and the
continuity across the connector terminals.
Repair or replace if necessary.
Defective mirror
flame, exposure
lamp or scanner
wire.
Check if the mirror flames and exposure
lamp are on the rail. And check the scanner
wire winds correctly.
Code Contents
Remarks
Causes Check procedures/corrective measures