Brother DCP-8085DN Service Manual page 151

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