Brother MFC-9130CW Service Manual page 156

■ Faulty registration
- ADF
Step
1 Fine adjustment of scan start
position misalignment
2 First side document scanning
position actuator catching on
some position
3 Second side document
scanning position actuator
catching on some position
- Document scanner unit
Step
1 Fine adjustment of scan start
position misalignment
2 First side CIS unit failure
■ Dark
<User Check>
Step
1 White level calibration data
failure
2 First side or second side CIS
unit failure
3 Main PCB failure
Cause
Cause
- Check whether the setting of the contrast does not become dark.
- Clean the document hold.
Cause
2-117
Remedy
Perform the fine adjustment of scan start
position. (Function code
Re-assemble the first side document
scanning position actuator.
Re-assemble the second side document
scanning position actuator.
Remedy
Perform the fine adjustment of scan start
position. (Function code
Replace the first side CIS unit.
Remedy
Perform the acquisition of white level data.
(Function code 55)
Replace the first side or second side CIS
unit.
Replace the main PCB ASSY.
54)
54)
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