Confidential
2-80
Completely blank
Straight vertical stripes
User Check
- Check that documents are not reversed.
- Check that they are set in the ADF tray securely.
Step
Cause
Solution
1
White level correction data
failure
Carry out maintenance 55.
2
First side or second side CIS
flat cable connection failure
Reconnect the first side or second side CIS flat
cable.
3
The first side or second side
CIS flat cable defective
Replace the first side or second side CIS flat
cable.
4
First side or second side CIS
unit defective
Replace the first side or second side CIS unit.
5
Main PCB defective
Replace the main PCB ASSY.
User Check
- Clean document cover glass or ADF glass.
- Clean the document pressure bar.
Step
Cause
Solution
1
Foreign materials on the lens
surface of CIS unit
Remove foreign materials.
2
First side or second side CIS
unit defective
Replace the first side or second side CIS unit.
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 ...