Konica Minolta bizhub C250 Service Manual page 502

Field Service Ver. 3.0 Aug. 2006
16.5.72 C6751: CCD clamp/gain adjustment failure
Scanner Assy
Step
Correct the harness connection between
1
PWB-A and PWB-C if faulty.
Check for possible extraneous light and
2
correct as necessary.
Clean the lens, mirrors, CCD surface, and
3
shading sheet if dirty
Correct reflective mirror of the Scanner if
4
faulty, or change Scanner.
5 Change PWB-A
6 Change PWB-C
16.5.73 C9401: Exposure Lamp's failure to turn ON
16.5.74 C9402: Exposure Lamp turning ON at abnormal timing
Scanner Assy
Flat Cable
Step
Check the flat cable for proper connection
1
and correct or change as necessary.
2 Change Scanner Assy
3 Change PWB-C
Relevant Electrical Parts
Action
Relevant Electrical Parts
Action
CCD Sensor Board (PWB-A)
Image Processing Board (PWB-C)
WIRING DIAGRAM
Control Signal
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Image Processing Board (PWB-C)
WIRING DIAGRAM
Control Signal
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16. Malfunction code
Location (Electri-
cal Component)
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Location (Electri-
cal Component)
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459