Brother MFC-8480DN/8880DN/8890DW Fax Machine User Manual


 
3-79
Confidential
Completely blank
Vertical streaks
White vertical streaks
Step Cause Check
Result
Remedy
1
White level data
malfunction
Is the problem solved by
performing the
acquisition of white level
data. (Function code 55)
Yes
Perform the acquisition of
white level data. (Function
code 55)
2
CCD unit failure Is the problem solved by
replacing the CCD unit.
Yes
Replace the CCD unit.
3
Main PCB failure Is the problem solved by
replacing the main PCB.
Yes
Replace the main PCB.
<User Check>
- Check if the ADF glass or document glass is not stained.
Step Cause Check
Result
Remedy
1
CCD unit failure Is the problem solved by
replacing the CCD unit.
Yes
Replace the CCD unit.
2
ADF or
document glass
failure
Is the problem solved by
replacing the scanner
unit.
Yes
Replace the scanner unit.
<User Check>
- Check if the ADF glass or document glass is not stained.
Step Cause Check
Result
Remedy
1
CCD unit failure Is the problem solved by
replacing the CCD unit.
Yes
Replace the CCD unit.
2
ADF or
document glass
failure
Is the problem solved by
replacing the scanner
unit.
Yes
Replace the scanner unit.