2NP
1-4-85
(15)
Paper feed clutch 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.
Paper feed clutch 1 and engine PWB (YC25)
2. Defective clutch.
Replace the paper feed clutch 1.
3. Defective PWB.
Replace the engine PWB and check for correct operation
(see page 1-5-39).
(16)
Paper feed clutch 2
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.
Paper feed clutch 2 and engine PWB (YC28)
video PWB and main PWB
2. Defective clutch.
Replace the paper feed clutch 2.
3. Defective PWB.
Replace the engine PWB or the main PWB and check for
correct operation (see page 1-5-54, 1-5-37).
(17)
Mid clutch 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.
Mid clutch 1 and engine PWB (YC25)
2. Defective clutch.
Replace the mid clutch 1.
3. Defective PWB.
Replace the engine PWB and check for correct operation
(see page 1-5-39).
(18)
Mid clutch 2 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.
Mid clutch 2 and engine PWB (YC28)
2. Defective clutch.
Replace the mid clutch 2.
3. Defective PWB.
Replace the engine PWB or the main PWB and check for
correct operation (see page 1-5-54, 1-5-37).
(19)
Registration clutch
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.
Registration clutch and engine PWB (YC25)
2. Defective clutch.
Replace the registration clutch.
3. Defective PWB.
Replace the engine PWB and check for correct operation
(see page 1-5-39).
(20)
Duplex clutch 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.
Duplex clutch and engine PWB (YC25)
2. Defective clutch.
Replace the duplex clutch.
3. Defective PWB.
Replace the engine PWB and check for correct operation
(see page 1-5-39).
Problem
Causes
Check procedures/corrective measures
Содержание TASKalfa 2551ci
Страница 1: ...SERVICE MANUAL Published in September 2016 842NP11A 2NPSM06A Rev A TASKalfa 2551ci ...
Страница 10: ...This page is intentionally left blank ...
Страница 97: ...2NP 1 1 2 74 This page is intentionally left blank ...
Страница 259: ...2NP 1 3 162 U486 Details on the modes Figure 1 3 47 Item No Description ...
Страница 473: ...2NP 1 5 62 This page is intentionally left blank ...
Страница 496: ...2NP 2 1 21 Figure 2 1 25 Duplex conveying section block diagram EPWB DU_SW DU_CL_REM YC25 3 YC24 3 DUCL DUS ...
Страница 497: ...2NP 2 1 22 This page is intentionally left blank ...
Страница 544: ...2NP 2 3 37 2 3 5 IH PWB Figure 2 3 5 IH PWB silk screen diagram YC1 1 2 YC8 1 3 YC6 2 1 YC4 6 1 YC3 YC10 YC9 ...
Страница 555: ...2NP 2 3 48 This page is intentionally left blank ...
Страница 584: ...Installation Guide DP 770 B Document processor DP 772 Document processor Installation Guide ...
Страница 620: ...DP 773 Document processor Installation Guide ...
Страница 646: ...PF 791 500 x 2 Paper feeder Installation Guide ...
Страница 654: ...PF 810 3000 sheets deck Installation Guide ...
Страница 667: ...DF 770 D Document finisher Installation Guide ...
Страница 685: ...AK 740 Bridge unit Installation Guide ...
Страница 687: ...PH 7A C D Punch unit Installation Guide ...
Страница 708: ...DT 730 B Document tray Installation Guide ...
Страница 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 ...
Страница 711: ...FAX System W B Installation Guide ...