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2KN/2KP
1-4-65
(32)
Developing fan motor
1 or 2 does not oper-
ate.
1. Broken developing fan
motor 1 or 2 coil.
Check for continuity across the coil. If none, replace developing
fan motor 1 or 2.
2. Poor contact in develop-
ing fan motor 1 or 2 con-
nector terminals.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
3. Defective developing fan
motor 1.
Run maintenance item U037 and check if developing fan motor 1
operates when YC2-9 on the fan motors drive PWB outputs 24 V.
If not, replace developing fan motor 1.
4. Defective developing fan
motor 2.
Run maintenance item U037 and check if developing fan motor 2
operates when YC2-11 on the fan motors drive PWB outputs 24 V.
If not, replace developing fan motor 2.
5. Defective fan motors
drive PWB.
Run maintenance item U037 and check if YC2-9 or YC2-11 on the
fan motors drive PWB outputs 24 V. If not, replace the fan motors
drive PWB.
6. Defective engine PWB.
Run maintenance item U037 and check if YC13-3 on the engine
PWB outputs 24 V. If not, replace the engine PWB.
(33)
The image formation
fan motor does not
operate.
1. Broken image formation
fan motor coil.
Check for continuity across the coil. If none, replace the image for-
mation fan motor.
2. Poor contact in image
formation fan motor con-
nector terminals.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
3. Defective image forma-
tion fan motor.
Run maintenance item U037 and check if the image formation fan
motor operates when YC5-1 on the engine PWB outputs 24 V. If
not, replace the image formation fan motor.
4. Defective engine PWB.
Run maintenance item U037 and check if YC5-1 on the engine
PWB outputs 24 V. If not, replace the engine PWB.
(34)
The developing duct
fan motor does not
operate.
1. Broken developing duct
fan motor coil.
Check for continuity across the coil. If none, replace the develop-
ing duct fan motor.
2. Poor contact in develop-
ing duct fan motor con-
nector terminals.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
3. Defective developing
duct fan motor.
Run maintenance item U037 and check if the developing duct fan
motor operates when YC5-2 on the engine PWB outputs 24 V. If
not, replace the developing duct fan motor.
4. Defective engine PWB.
Run maintenance item U037 and check if YC5-2 on the engine
PWB outputs 24 V. If not, replace the engine PWB.
Problem
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: ......
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