2NP
1-4-46
7414
Drum unit Y type mismatch
problem
Absence of the drum unit Y is
detected.
Drum unit connec-
tor inserted incor-
rectly.
Reinsert the drum unit Y connector if neces-
sary.
Different type of
the drum unit is
installed.
Install the correct drum unit
(see page 1-5-15).
7420
Transfer belt unit type mis-
match problem
Absence of the transfer belt
unit is detected.
Transfer belt unit
connector inserted
incorrectly.
Reinsert the transfer belt unit connector if
necessary.
Different type of
the transfer belt
unit is installed.
Install the correct transfer belt unit
(see page 1-5-16).
7601
ID sensor 1 (front) error
Defective ID sen-
sor.
Replace the ID sensor 1.
Defective PWB.
Replace the engine PWB check for correct
operation (see page 1-5-39).
7602
ID sensor 2 (rear) error
Defective ID sen-
sor.
Replace the ID sensor 2.
Defective PWB.
Replace the engine PWB check for correct
operation (see page 1-5-39).
7611
ID sensor (K) density error
When the concentration in a
bias calibration is unusual.
Defective ID sen-
sor.
Replace the ID sensor.
Defective PWB.
Replace the engine PWB check for correct
operation (see page 1-5-39).
7612
ID sensor (C) density error
When the concentration in a
bias calibration is unusual.
Defective ID sen-
sor.
Replace the ID sensor.
Defective PWB.
Replace the engine PWB check for correct
operation (see page 1-5-39).
7613
ID sensor (M) density error
When the concentration in a
bias calibration is unusual.
Defective ID sen-
sor.
Replace the ID sensor.
Defective PWB.
Replace the engine PWB check for correct
operation (see page 1-5-39).
7614
ID sensor (Y) density error
When the concentration in a
bias calibration is unusual.
Defective ID sen-
sor.
Replace the ID sensor.
Defective PWB.
Replace the engine PWB check for correct
operation (see page 1-5-39).
7620
ID sensor timing error
Color registration correction
was failed.
Defective ID sen-
sor.
Replace the ID sensor.
Defective PWB.
Replace the engine PWB check for correct
operation (see page 1-5-39).
Code
Contents
Causes
Check procedures/
corrective measures
Содержание TASKalfa 2551ci
Страница 1: ...SERVICE MANUAL Published in September 2016 842NP11A 2NPSM06A Rev A TASKalfa 2551ci ...
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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 ...