2NP
1-4-31
3220
LED error
Defective connec-
tor cable or poor
contact in the con-
nector.
1. To check the lamp, execute U061 CCD
(see page 1-3-43).
2. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
LED lamp PWB and ISC PWB (YC6)
ISC PWB (YC3) and Main PWB (YC11)
3. If the wiring is disconnected, shorted or
grounded, replace the wiring.
Defective LED
PWB.
If the LED lamp won’t light, replace the LED
PWB and execut U411 (see page 1-3-134).
Defective PWB.
Replace the ISC PWB and the main PWB
and check for correct operation (see page 1-
5-37).
3300
Optical system (AGC) error
After AGC, correct input is not
obtained at CCD.
Defective connec-
tor cable or poor
contact in the con-
nector.
1. To check the lamp, execute U061 CCD
(see page 1-3-43).
2. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
LED lamp PWB and ISC PWB (YC6)
CCD PWB (YC2) and ISC PWB (YC9)
ISC PWB (YC3) and Main PWB (YC11)
3. If the wiring is disconnected, shorted or
grounded, replace the wiring.
Defective LED
PWB or CCD
PWB.
If the LED lamp won’t light, replace the LED
PWB and execut U411 (see page 1-3-134).
Defective PWB.
1. Replace the ISU and execute U411 (see
page 1-3-134).
2. Replace the ISC PWB and execute
U411 (see page 1-3-134).
3. Replace the main PWB (see page 1-5-
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 ...