Troubleshooting; Error Cause And Solutions - Brother MFC-J3520 Service Manual

4

TROUBLESHOOTING

4.1

Error Cause and Solutions

Error Code 13

Paper Jam
Defective during duplex-printing
Registration sensor detects paper feed condition at out of specified timing during
switchback.
User Check
- Check whether the recording paper being used is within the specification.
Step
1 Switchback actuator caught on
the surrounding parts
2 Registration actuator caught
on the surrounding parts
3 Registration sensor defective
4 Main PCB defective
Error Code 15

Paper Jam
Paper jam during duplex ejecting
Recording paper is not able to be ejected since it is longer than 840 mm when ejecting
the paper.
User Check
- Remove the jammed paper.
- Check whether the recording paper being used is within the specification.
- Firmly set the paper tray to the rear end.
Step
1 Foreign materials in the
recording paper path
2 Main PCB defective
Cause
Set the switchback frame ASSY into place.
Set the registration actuator into place.
Replace the registration sensor PCB ASSY.
Replace the main PCB ASSY.
Cause
Remove foreign materials.
Replace the main PCB ASSY.
2-21
LCD
Solution
LCD
Solution
Confidential