Brother MFC-J2320 Service Manual page 100

Paper jam around the platen

User Check
- Check that recording paper is loaded correctly in the paper tray.
- 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 CR encoder strip stained
3 CR encoder strip out of place
4 Platen foam drift
5 Bank ASSY out of place
6 Head/carriage unit head
unlocked
7 Switchback inner paper guide
not mounted in place
8 Switchback outer paper guide
not mounted in place
9 Switchback roller belt out of
place
10 Paper ejection roller belt out of
place
11 CR guide rail not mounted in
place
12 Corrugat plate not mounted in
place
13 Platen ASSY not mounted in
place
14 Platen spring not mounted in
place
15 Inner chute ASSY not mounted
in place
16 Inner chute ASSY broken
17 DX paper guide ASSY not
mounted in place
18 Platen ASSY damaged,
broken
19 Registration sensor PCB
defective
20 Main PCB defective
Cause
Remove foreign materials.
Clean the CR encoder strip.
Set the CR encoder strip into place.
Set the platen foam into place.
Set the bank ASSY into place.
Set the head lock in lock position.
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 ejection roller belt into place.
Set the CR guide rail into place.
Set the corrugat plate into place.
Set the platen ASSY into place.
Set the platen spring into place.
Set the inner chute ASSY into place.
Replace the inner chute ASSY.
Set the DX paper guide ASSY into place.
Replace the platen ASSY.
Replace the registration sensor PCB ASSY.
Replace the main PCB ASSY.
2-63
Solution
Confidential