Samsung SCX-82x0 series, Руководство по обслуживанию

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7. Troubles
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E d
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E
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Error code :
U2-1111
U2-1114
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Error message
LSU Failure: #U2-1
LSU Failure: #U2-1
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Symptom and Cause
S t Symptom :
- LSU Motor does not operate.
LSU Motor operates abnormally. - Motor Ready sig
Cause :
- LSU Motor or Motor Drive PBA is broken.
- A LSU Motor harness is connected incorrectly. y
- A LSU Motor generates signals abnormally or does
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Solution :
1. Turn the machine off then on. Check the LSU opera
2. Print a demo page and check the quality of the prin
3. If the problem persists, check the following.
a. LSU operational sound occurs.
1) Check the LSU motor signals by SVC mode.
(Diagnostics > Engine Diagnostics > Engine T
2) Ch k if th t d i l i l h 2) Check if the motor ready signal is properly chang
3) If the signal does not change, replace LSU(JC97
(The Motor ready signal is not generated.)
b. LSU operational sound does not occur.
1) Turn the machine off.
2) After opening Front-Cover check the LSU harne 2) After opening Front-Cover, check the LSU harne
3) If the problem persists, replace LSU(JC97-0421
Service Manual
7-U
shooting
:
111. Turn off then on.
114. Turn off then on
gnal is incorrect.
s not operate.
ational noise.
ntout.
est Routines>110-0000)
d (f L t Hi h) ged.(fron Low to High)
7-04219A).
ess is connected correctly ess is connected correctly.
9A) .
SAMSUNG ELECTRONICS
U-9