Brother MFC-J6920DW, Service Manual

Page: 92 / 365

Confidential 2-58

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 Cause Solution
1 Foreign materials in the
recording paper path Remove foreign materials.
2 CR encoder strip stained Clean the CR encoder strip.
3 CR encoder strip defective Replace the CR encoder strip.
4 Platen foam drift Set the platen foam into place.
5 Bank ASSY out of place Set the bank ASSY into place.
6 Head/carriage unit head
unlocked Set the head lock in lock position.
7 Switchback inner paper guide
not mounted in place Set the switchback inner paper guide into place.
8 Switchback outer paper guide
not mounted in place Set the switchback outer paper guide into place.
9 Switchback roller belt out of
place Set the switchback roller belt into place.
10 Paper eject roller belt out of
place Set the paper eject roller belt into place.
11 CR guide rail not mounted in
place Set the CR guide rail into place.
12 Platen not mounted in place Set the platen into place.
13 Platen spring not mounted in
place Set the platen spring into place.
14 Inner chute ASSY not mounted
in place Set the inner chute ASSY into place.
15 Inner chute ASSY broken Replace the inner chute ASSY.
16 DX paper guide ASSY not
mounted in place Set the DX paper guide ASSY into place.
17 Platen damaged, broken Replace the platen.
18 Registration sensor PCB
defective Replace the registration sensor PCB ASSY.
19 Main PCB defective Replace the main PCB ASSY.