Brother DCP-7055 - Page 134

2-97
Confidential
■ Faulty registration (Error code B3, B4, etc)
■ Dark (Error code BB, etc)
- ADF
Step Cause Remedy
1
Fine adjustment of scan start
position misalignment
Perform the fine adjustment of scan start
position. (Function code 54)
2
Document scanning position
actuator catching on some
position
Correct catching of the document scanning
position actuator.
- Document table
Step Cause Remedy
1
Fine adjustment of scan start
position misalignment
Perform the fine adjustment of scan start
position. ("Function code 55")
2 Document scanner unit failure Replace the document scanner unit.
User Check
• Check whether the setting of the contrast does not become dark.
Step Cause Remedy
1
White level data malfunction Perform the acquisition of white level data.
("Function code 55")
2 CIS unit failure Replace the document scanner unit.
3 Main PCB failure Replace the main PCB ASSY.