Brother HLL3290CDW Service Manual page 185

■
Completely blank
<User Check>
Step
Incorrect white level
1
correction data
First or second side CIS flat
2
cable failure
First or second side CIS unit
3
failure
4 Main PCB failure
■
All black
<User Check>
Step
Incorrect white level
1
correction data
First or second side CIS flat
2
cable failure
First or second side CIS unit
3
failure
4 Main PCB failure
• Check that the document is not reversed.
Cause
• Install all the latest firmwares.
Cause
2-149
Remedy
Execute "Acquire white level data
code 55)".
Replace the first or second side CIS flat
cable.
Replace the first or second side CIS unit.
Replace the main PCB.
Remedy
Execute "Acquire white level data
code 55)".
Replace the first or second side CIS flat
cable.
Replace the first or second side CIS unit.
Replace the main PCB.
(Function
(Function
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