2NP
1-4-83
(4)
ID Shutter motor
does not operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
ID Shutter motor and engine connect PWB (YC3)
engine connect PWB and engine PWB (YC5)
2. Defective drive trans-
mission system.
Check if the rollers and gears rotate smoothly. If not,
grease the bushes and gears. Check for broken gears and
replace if any.
3. Defective motor.
Replace the ID Shuttermotor.
4. Defective PWB.
Replace the engine PWB or engin connect PWB and check
for correct operation (see page 1-5-39).
(5)
Fuser pressure
release motor does
not operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Fuser pressure release motor and engine PWB (YC30)
2. Defective drive trans-
mission system.
Check if the rollers and gears rotate smoothly. If not,
grease the bushes and gears. Check for broken gears and
replace if any.
3. Defective motor.
Replace the Fuser pressure release motor.
4. Defective PWB.
Replace the engine PWB and check for correct operation
(see page 1-5-39).
(6)
Controller fan
motor does not
operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Controller fan motor and main PWB (YC23)
2. Defective motor.
Replace the controller fan motor.
3. Defective PWB.
Replace the main PWB and check for correct operation
(see page 1-5-37).
(7)
Power source fan
motor does not
operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Power source fan motor and engine connect PWB (YC9)
engine connect PWB and engine PWB (YC4)
2. Defective motor.
Replace the power source fan motor.
3. Defective PWB.
Replace the engine PWB or engine connect PWB and
check for correct operation (see page 1-5-39).
(8)
Developer fan
motor 1 does not
operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Developer fan motor 1 and engine PWB (YC19)
2. Defective motor.
Replace the developer fan motor 1.
3. Defective PWB.
Replace the engine PWB and check for correct operation
(see page 1-5-39).
Problem
Causes
Check procedures/corrective measures
Summary of Contents for TASKalfa 2551ci
Page 1: ...SERVICE MANUAL Published in September 2016 842NP11A 2NPSM06A Rev A TASKalfa 2551ci ...
Page 10: ...This page is intentionally left blank ...
Page 97: ...2NP 1 1 2 74 This page is intentionally left blank ...
Page 259: ...2NP 1 3 162 U486 Details on the modes Figure 1 3 47 Item No Description ...
Page 473: ...2NP 1 5 62 This page is intentionally left blank ...
Page 497: ...2NP 2 1 22 This page is intentionally left blank ...
Page 555: ...2NP 2 3 48 This page is intentionally left blank ...
Page 584: ...Installation Guide DP 770 B Document processor DP 772 Document processor Installation Guide ...
Page 620: ...DP 773 Document processor Installation Guide ...
Page 646: ...PF 791 500 x 2 Paper feeder Installation Guide ...
Page 654: ...PF 810 3000 sheets deck Installation Guide ...
Page 667: ...DF 770 D Document finisher Installation Guide ...
Page 685: ...AK 740 Bridge unit Installation Guide ...
Page 687: ...PH 7A C D Punch unit Installation Guide ...
Page 708: ...DT 730 B Document tray Installation Guide ...
Page 710: ...5 2013 5 302LC56750 01 H F G D D 6 4 3 7 E C D D M4 8 M4 8 M4 8 M4 8 ...
Page 711: ...FAX System W B Installation Guide ...