2NP-3
1-4-68
9000
Document processor com-
munication error
A communication error is
detected 10 times in succes-
sion.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
DP main PWB and ISC PWB (YC12)
Defective PWB.
Replace the DP main PWB or the ISC PWB
and check for correct operation.
9010
Coin vender communica-
tion error
A communication error from
coin vender is detected 10
times in succession.
U206 setting
Set maintenance mode U206 to off when a
coin vender is not installed (see page 1-3-
94).
Coin vender control
PWB
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Coin vender control PWB and Engine
PWB (YC12)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the Coin vender control PWB.
Engine PWB
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
9040
DP lift motor going up error
When the DP lift motor is
driven, DP lift sensor 1 does
not turn on within 1500 pulse.
(Three recovery times.)
The above has been detected
5 times.
* : The number of detec-
tion should be
weighted with one for
the rise at job start and
two for the irregular
rise during transpot-
ing. The accumulated
number must be
cleared at completion
of a normal rise. The
default threshold is 5.
DP lift motor
1. Execute U906 Separating Operation
Release (see page 1-3-195).
2. Execute U243 Lift Motor to check the DP
motor operation (see page 1-3-107).
3. Check that the original document lift
guide can move upwards.
4. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
DP lift motor and DP MAIN PWB (YC5)
5. If the wiring is disconnected, shorted or
grounded, replace the wiring.
6. Replace the DP lift motor.
DP lift sensor 1
1. Execute U244 LIFT L-Limit to check DP
switch (see page 1-3-108).
2. Check that the sensor and its mounting
bracket are correctly positioned.
3. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
DP lift sensor 1 and DP Main PWB
(YC4)
4. Replace the DP lift sensor 1.
DP Main PWB
Replace the DP main PWB
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 ...