Brother MFC-7390

2-110
Confidential
 Completely blank
 All black
<User Check>
• Check that the document is not reversed.
Step Cause Remedy
1
Incorrect white level
correction data
Execute “Acquire white level data (Function
code 55)”.
2
First or second side CIS flat
cable failure
Replace the first or second side CIS flat
cable.
3
First or second side CIS unit
failure
Replace the first or second side CIS unit.
4 Main PCB failure Replace the main PCB ASSY.
<User Check>
• Install all the latest firmwares.
Step Cause Remedy
1
Incorrect white level
correction data
Execute “Acquire white level data (Function
code 55)”.
2
First or second side CIS flat
cable failure
Replace the first or second side CIS flat
cable.
3
First or second side CIS unit
failure
Replace the first or second side CIS unit.
4 Main PCB failure Replace the main PCB ASSY.