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Confidential
2-78
4.8
Scanned-image Problems
4.8.1 Defective images
Fig. 2-11
4.8.2 Troubleshooting from image defect
Light
User Check
- Check if the contrast is set to "Light."
- Clean document cover glass or ADF glass.
- Clean the document pressure bar.
Step
Cause
Solution
1
White level correction data
failure
Carry out maintenance 55.
2
First side or second side CIS
unit defective
Replace the first side or second side CIS unit.
3
Main PCB defective
Replace the main PCB ASSY.
Light
Summary of Contents for MFC-J6920DW
Page 123: ...3 3 Confidential 2 PACKING ...
Page 146: ...3 26 Confidential 3 Set the protective part Protective part ...
Page 308: ...5 37 Confidential pfadj2 Pattern ...
Page 315: ...5 44 Confidential Margin Check Pattern ...
Page 362: ...App 3 8 Confidential When the following screen appears click Close to close the screen ...