Brother ADS-1000W Service Manual page 41

 Faulty registration
Step
Document scanning position
actuator or card scanning position
1
actuator caught in sections of the
machine
 Dark or bluish white
Step
First side or second side CIS unit
1
failure
2 Main PCB failure
 Completely blank
Step
Connection failure of the CIS flat
1
cable
First side or second side CIS unit
2
failure
3 Main PCB failure
Cause
<User Check>
• Check that the contrast setting is not too dark.
Cause
<User Check>
• Check that the document is not reversed.
• Check that the document is set in the document tray correctly.
Cause
2-18
Remedy
Reattach the document scanning position
actuator or card scanning position actuator.
Remedy
Replace the first side or second side CIS
unit.
Replace the main PCB ASSY.
Remedy
Reconnect the first side or second side CIS
flat cable.
Replace the first side or second side CIS
unit.
Replace the main PCB ASSY.
Confidential