2NP
1-4-69
9050
DP lift motor going down
error
When the DP lift motor is
driven, DP lift sensor 2 does
not turn on within 1500 pulse.
(Three recovery times.)
The above has been detected
5 times.
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 downwards.
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)
If the wiring is disconnected, shorted or
grounded, replace the wiring.
5. Replace the DP lift motor.
DP lift sensor 2
1. Execute U244 LIFT L-Limit to check DP
switch (see page 1-3-108).
2. Confirm that the DP lift sensor 2 has
been firmly fitted.
3. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
DP lift sensor 2 and DP main PWB
(YC2)
4. Replace the DP lift sensor2.
DP main PWB
Replace the DP main PWB
9060
DP EEPROM error
Mismatch of reading data from
two locations occurs 3 times
successively.
Mismatch between writing
data and reading data occurs
3 times successively.
DP main PWB
1. Execute U906 Separating Operation
Release (see page 1-3-195).
2. Confirm that the EEPROM has been
properly installed.
3. Replace the DP main PWB
Device damage of
EEPROM
Contact the Service Support.
9070
Communication error
between DP and SHD
A communication error is
detected.
DP SHD PWB
1. Execute U906 Separating Operation
Release (see page 1-3-195).
2. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
DP SHD PWB (YC1) and DP main PWB
(YC10)
3. If the wiring is disconnected, shorted or
grounded, replace the wiring.
4. Replace the DP SHD 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 ...