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2NP
1-4-30
3100
ISU home position error
ON/OFF of the HP sensor
doesn't change after a pre-
scribed pulse passes from
power supply ON.
The scanner mirror
frame is being
locked after setup.
Check whether the scanner mirror frame has
been unlocked and unlock if necessary (see
page 1-2-11).
Scanner motor
1. To check the scanner motor, execute
U073 (see page 1-3-54).
2. Move the scanner by the hand to check
whether it is unusually difficult to move.
3. Check that the optical wire rope is not
disengaged and engage the wire.
4. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Scanner motor and ISC PWB (YC5)
ISC PWB (YC3) and Main PWB (YC11)
5. If the wiring is disconnected, shorted or
grounded, replace the wiring.
6. Replace the scanner motor.
Home position
sensor
1. Check that the sensor is correctly
positioned.
2. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Home position sensor and ISC PWB
(YC8)
3. Replace the home position sensor.
Defective PWB.
Replace the ISC PWB or the main PWB and
check for correct operation (see page 1-5-
37).
3210
CIS lamp error
When input value at the time
of CIS illumination does not
exceed the threshold value
between 5 s.
CIS
1. Execute U906 Separating Operation
Release (see page 1-3-195).
2. Execute CCD of U061 lamp check (see
page 1-3-43).
3. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
CIS and DPSHD PWB (YC2)
DPSHD PWB (YC3) and DP relay PWB
(YC2)
4. If the wiring is disconnected, shorted or
grounded, replace the wiring.
5. Replace the CIS and execute U091 and
U411 (see page 1-3-58,1-3-134).
Defective PWB.
Replace the DP SHD PWB or the DP
connect PWB and check for correct opera-
tion.
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 ...
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Страница 667: ...DF 770 D Document finisher Installation Guide ...
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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 ...