
2KN/2KP
1-4-35
C2250
Cleaning motor error
• LOCK signal remains high for 1 s,
200 ms after the cleaning motor has
turned on.
Poor contact in the
drive motor con-
nector terminals.
Check the connection of connector YC5 on
the engine PWB. Reinsert the connector.
Also check for continuity within the connec-
tor cable. If none, remedy or replace the
cable.
Defective cleaning
motor rotation con-
trol circuit.
Replace the cleaning 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 engine
PWB.
Replace the engine PWB.
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.
Code
Contents
Remarks
Causes
Check procedures/corrective measures
Summary of Contents for TASKalfa 620
Page 1: ...SERVICE MANUAL Published in August 2009 842KP112 2KPSM062 Rev 2 TASKalfa 620 820 ...
Page 4: ...This page is intentionally left blank ...
Page 10: ...This page is intentionally left blank ...
Page 144: ...2KN 2KP 1 3 106 This page is intentionally left blank ...
Page 308: ...2KN 2KP 1 5 88 This page is intentionally left blank ...
Page 412: ...2KN 2KP 2 3 60 This page is intentionally left blank ...
Page 435: ...1 1 INSTALLATION GUIDE INSTALLATION GUIDE FOR SIDE FEEDER ...
Page 442: ...INSTALLATION GUIDE FOR LARGE SIZE SIDE FEEDER ...
Page 460: ...INSTALLATION GUIDE FOR DOCUMENT FINISHER ...
Page 475: ...INSTALLATION GUIDE FOR CENTERFOLD UNIT ...
Page 490: ...INSTALLATION GUIDE FOR MULTI JOB TRAY ...
Page 501: ...INSTALLATION GUIDE FOR PUNCH UNIT ...
Page 512: ...INSTALLATION GUIDE FOR STOPPER GUIDE ...
Page 515: ...INSTALLATION GUIDE FOR PRINTING SYSTEM ...
Page 518: ...INSTALLATION GUIDE FOR SCAN SYSTEM ...
Page 520: ......
Page 521: ......