Brother DCP-7057 Service Manual page 93

■ Error code A2
Document Jam
Clear the scanner jam, then press the Stop Key.
During scanning, 90 cm or longer of a document is detected.
<User Check>
• Check if the document or the foreign object is jammed in the ADF. If it is jammed, remove
it.
Step
Document scanning position
1 detection actuator catching on
some position
Document scanning position
2
sensor PCB failure
3 Main PCB failure
■ Error code A3
Document Jam
Clear the scanner jam, then press the Stop Key.
The document scanning position detection actuator does not detect the leading edge of a
document although the document is fed farther than a designated distance.
<User Check>
• Check if the document is jammed in the ADF. If it is jammed, remove it.
Step
Document scanning position
1 detection actuator catching on
some position
Harness connection failure of
2 document scanning position
detection sensor PCB
Document scanning position
3
detection sensor PCB failure
4 Main PCB failure
Cause
Cause
2-56
Remedy
Correct the position of the document
scanning position detection actuator.
Replace the document scanning position
sensor PCB ASSY.
Replace the main PCB ASSY.
Remedy
Correct the position of the document
scanning position detection actuator.
Check the harness connection of the
document scanning position detection
sensor PCB and reconnect it.
Replace the document scanning position
detection sensor PCB ASSY.
Replace the main PCB ASSY.
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