Recording Paper Jam - Brother MFC-J3520 Service Manual

Error Code 84

Paper Jam

Recording 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
1 Foreign materials in the
feeding path
2 Registration actuator caught
on the surrounding parts
3 Switchback actuator caught on
the surrounding parts
4 Paper feed roller,
paper ejection roller,
switchback roller stained
5 Paper feed roller,
paper ejection roller,
switchback roller defective
6 Main PCB defective
Error Code 87

Paper Jam
Recording paper jam
Switchback sensor stays in paper feeding state even after completion of paper ejection
action.
User Check
- Remove the jammed paper in front part.
- The paper tray is not set correctly.
Step
1 Foreign materials in the
feeding path
2 Switchback actuator caught on
the surrounding parts
3 Switchback outer paper guide
not mounted in place
4 Paper ejection roller,
switchback roller stained
5 Paper ejection roller,
switchback roller defective
6 Main PCB defective
Cause
Remove foreign materials.
Set the registration actuator into place.
Set the switchback frame ASSY into place.
Clean the related rollers.
Replace related rollers.
Replace the main PCB ASSY.
Cause
Remove foreign materials.
Set the switchback frame ASSY into place.
Set the switchback outer paper guide into place.
Clean the related rollers.
Replace related rollers.
Replace the main PCB ASSY.
2-42
LCD
Solution
LCD
Solution
Confidential