Brother MFC-J6935DW - 8200 Paper Jam; Registration Sensor Stays in Paper Feeding State Even after Completion

Confidential
2-47
■ Error Code 8200
Paper jam.
- Paper width sensor cannot detect leading edge or width of recording papers.
< User Check >
- Check whether the recording paper being used is within the specification.
- Check that dark recording paper is not used.
- Clean the platen.
- Remove the jammed paper in jam clear cover part.
■ Error Code 8400
Paper jam.
- Registration sensor stays in paper feeding state even after completion of paper
ejection action.
< User Check >
- Remove the jammed paper in platen part.
Step Cause Solution
1 Foreign materials in the
feeding path
Remove foreign materials.
2 Paper feeding path parts out of
place
Set the paper feeding path parts into place.
3 Paper feed roller stained Clean the paper feed roller.
4 Paper width sensor defective Replace the carriage PCB ASSY.
5 Paper feed roller defective Replace the paper feed roller.
6 Main PCB defective Replace the main PCB.
Step Cause Solution
1 Foreign materials in the
feeding path
Remove foreign materials.
2 Registration actuator caught
on the surrounding parts
Set the registration actuator into place.
3 Switchback actuator caught on
the surrounding parts
Set the switchback frame ASSY into place.
4 Paper feed roller, paper
ejection roller or switchback
roller stained
Clean the related rollers.
5 Paper feed roller, paper
ejection roller or switchback
roller defective
Replace related rollers.
6 PF encoder sensor defective Replace the PF encoder sensor PCB.
7 Maintenance unit defective Replace the maintenance unit.
8 Main PCB defective Replace the main PCB.