2NP
1-4-19
0980
24 V power down detect
24V disconnection signal is
detected for 1.5 seconds.
Defective power
source PWB.
1. Check the +24V output is given at YC12-
1 to 3 of the power circuit PWB.
2. Replace the power source PWB (see
page 1-5-44).
1010
Lift motor 1 error
After cassette 1 is inserted,
the lift sensor 1 does not turn
on within 15 s. This error is
detected five times succes-
sively.
Defective bottom
plate elevation
mechanism in the
cassette.
Check to see if the bottom plate can move
smoothly and repair any problem that is
found.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity of the connector cable. If necessary,
replace the cable.
Lift motor 1 and engine connect PWB (YC6)
Engine connect PWB (YC2) and engine
PWB (YC4)
Defective drive
transmission sys-
tem of the lift
motor.
Check if the gears rotate smoothly. If not,
grease the bushes and gears. Check for
broken gears and replace if necessary.
Defective lift motor. Replace the lift motor 1.
Defective PWB.
Replace the engine PWB and check for cor-
rect operation (see page 1-5-39).
Code
Contents
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 ...