Brother MFC-T4500DW - Page 91

Confidential
2-51
■ Error Code A200
Document scanning position sensor detects length of document 900 mm or more.
< User Check >
- Check whether the scanned document is longer than the specified limit.
- Remove the jammed document.
■ Error Code A300
Document detection sensor detects that document is pulled out during document
scanning. Or, the document scanning position sensor cannot detect document
within specified time.
< User Check >
- Remove the jammed document.
Step Cause Solution
1 Document scanning position
actuator caught on the
surrounding parts
Set the document scanning position actuator
into place.
2 Document scanning position
sensor defective
Replace the document scanning position
sensor PCB.
3 ADF motor defective
Document feed roller worn out
Replace the ADF unit.
4 Main PCB defective Replace the main PCB.
Step Cause Solution
1 Foreign materials in the
document feeding path
Remove foreign materials.
2 Document detection actuator
caught on the surrounding
parts
Set the document detection actuator into place.
3 Document scanning position
actuator out of place
Set the document scanning position actuator
into place.
4 Document scanning position
sensor harness connection
failure
Reconnect the document scanning position
sensor harness.
5 Document scanning position
sensor defective
Replace the document scanning position
sensor PCB.
6 Document pick-up roller worn
out
Replace the document separation roller ASSY.
7 ADF motor defective Replace the ADF unit.
8 Main PCB defective Replace the main PCB.