Brother DCP-L5500D Service Manual page 155

 Completely blank
Step
Incorrect white level correction data Execute "Acquire white level data
1
First or second side CIS flat cable
2
failure
3 First or second side CIS unit failure Replace the first or second side CIS unit.
4 Main PCB failure
 All black
Step
Incorrect white level correction data Execute "Acquire white level data
1
First or second side CIS flat cable
2
failure
3 First or second side CIS unit failure Replace the first or second side CIS unit.
4 Main PCB failure
 Vertical streaks
Step
1 Dirt inside of scanner glass
Dirt inside of first side/second side
2
scanner glass strip
3 First or second side CIS unit failure Replace the first or second side CIS unit.
4 Scratch on scanner glass
Scratch on second side scanner
5
glass strip
<User Check>
• Check that the document is not reversed.
Cause
<User Check>
• Install all the latest firmwares.
Cause
<User Check>
• Clean the scanner glass or first side/second side
scanner glass strip.
• Clean the document hold.
Cause
2-120
Remedy
code: 55)".
Replace the first or second side CIS flat
cable.
Replace the main PCB ASSY.
Remedy
code: 55)".
Replace the first or second side CIS flat
cable.
Replace the main PCB ASSY.
Remedy
Clean the inside of the scanner glass.
Clean the inside of the first side/second side
scanner glass strip.
Replace the document scanner unit.
Replace the ADF unit.
(function
(function
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