C6751 (bizhub 754e/654e)

Contents

Trouble type	CCD clamp/gain adjustment failure
Trouble code	C6751
Rank	B
Detection timing	• 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.
Trouble isolation	Scanner
Relevant electrical parts	• LED exposure unit (LA201) • CCD board (CCDB) • MFP board (MFPB)

  (2)Procedure

Step	Action	Control signal	Location of electrical components
1	Correct the harness connection between CCDB and MFPB 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 mirror.	–	–
5	Replace the CCD unitCCDB (Part# A2X0R72111)	–	–
6	Replace MFPBMFPB (Part# A55VH02304)	–	–

• Link to the layout drawings for related parts by each trouble code (S.95. C6751)

Document Information ID D0001104807 Revise ID R000003

Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.

K.3.11.6 (Link to the Field Service Manual)