Brother MFC-J5335DW Service Manual page 114

■ Document jam inside ADF
< User Check >
- Check that document is loaded correctly in the document tray.
- Adjust the document guide to match the document size.
- Check that the document shorter than the specified size is not loaded.
- Check that thickness of the document is 64 to 90 g/m
Step
1 Foreign materials inside ADF
2 Document pressure bar not
mounted in place
3 Lower doc chute ASSY not
mounted in place
4 Document scanning position
sensor harness connection
failure
5 Document scanning position
actuator not mounted in place
6 Second side CIS glass not
mounted in place
7 Document scanning position
sensor defective
8 The ADF hinges are deformed,
and the document cover
cannot be closed properly.
9 Feeding path in ADF unit
damaged, broken
10 Feeding path inside document
scanner unit damaged, broken
11 Main PCB defective
Cause
Remove foreign materials.
Set the document pressure bar into place.
Set the lower doc chute ASSY into place.
Reconnect the document scanning position
sensor harness.
Set the document scanning position actuator
into place.
Set the second side CIS glass into place.
Replace the document scanning position
sensor PCB ASSY.
Replace the ADF hinge.
Replace the ADF unit.
Replace the document scanner unit.
Replace the main PCB.
2-78
2
.
Solution
Confidential