Brother MFC-J3520 Service Manual page 93

Paper jam around paper ejection parts

User Check
- Clean the related rollers.
- Check that the number of recording paper on the paper ejecting tray is within the
maximum ejecting paper volume.
Step
1 Foreign materials in the
recording paper path
2 Switchback inner paper guide
not mounted in place
3 Switchback outer paper guide
not mounted in place
4 Paper eject roller belt out of
place
5 Main PCB defective
Paper jam during duplex printing

User Check
- Adjust the paper guide to match the recording paper size.
- Check that the paper shorter than the specified size is not loaded.
- Check thickness of recording paper is within tolerance of each type.
- Clean the related rollers.
Step
1 Foreign materials in the
recording paper path
2 Switchback inner paper guide
not mounted in place
3 Switchback outer paper guide
not mounted in place
4 Switchback roller belt out of
place
5 Paper eject roller belt out of
place
6 DX paper guide ASSY not
mounted in place
7 Main PCB defective
Cause
Remove foreign materials.
Set the switchback inner paper guide into place.
Set the switchback outer paper guide into place.
Set the paper eject roller belt into place.
Replace the main PCB ASSY.
Cause
Remove foreign materials.
Set the switchback inner paper guide into place.
Set the switchback outer paper guide into place.
Set the switchback roller belt into place.
Set the paper eject roller belt into place.
Set the DX paper guide ASSY into place.
Replace the main PCB ASSY.
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Solution
Solution
Confidential