Code :

Code: C6751
Description: CCD clamp/gain adjustment failure
• The adjustment value is 0 or 255 during a CCD clamp adjustment. • The peak value of the output data is 64 or less during a CCD gain adjustment.
Remedy: 1 Correct the harness connection between CCDB and IPB if faulty. 2 Check for possible extraneous light and correct as necessary. 3 Clean the lens, mirrors, CCD surface, and shading sheet if dirty 4 Correct reflective mirror of the scanner if faulty, or change scanner. 5 Change CCD sensor unit. 6 Change IPB.

Code: C6F01
Description: Scanner sequence trouble 1
• The original transport interval becomes shorter than the designed value due to an original transport control error in original reading in ADF.
Remedy: 1 Correct the harness connection between main body and ADF if faulty. 2 Change DFCB. 3 Change MFPB.

Code: C9401
Description: Exposure turning on the lamp trouble detection
• The output from the CCD sensor is a predetermined value or less during CCD sensor gain adjustment.
Remedy: 1 Check the connection between the lamp harness and the inverter board, and correct if necessary. 2 Check the connection between REYB/ SCAN and the inverter board, and correct if necessary. 3 Check the connection between REYB/ SCAN and IPB, and correct if necessary. 4 Check that the connection between CCDB and IPB, and correct if necessary. 5 Change INVB. 6 Change scanner assy. 7 Change IPB. 8 Change CCDB. 9 Change REYB/SCAN.

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