Brother ADS-2000 Service Manual page 43

Vertical streaks
Step
First side or second side CIS unit
1
failure
White vertical streaks
<User Check>
- Clean the CIS glass.
- Clean the document pressure bar.
Step
First side or second side CIS unit
1
failure
Hue defect
Step
Color parameter failure
1
First side or second side CIS unit
2
failure
3 Main PCB failure
<User Check>
- Clean the CIS glass.
- Clean the document pressure bar.
Cause
Cause
Replace the first side or second side CIS
unit.
Cause
Execute the maintenance mode function
"Acquire white level data and set CIS scan
area".
Replace the first side or second side CIS
unit.
Replace the main PCB ASSY.
2-19
Remedy
Replace the first side or second side CIS
unit.
Remedy
Remedy
Confidential