Brother MFC-J3520 Service Manual page 105

Traces of paper pull-in roller

Step
1 Paper pull-in roller defective
Dirt on the paper

Step
1 Maintenance unit stained
2 Foreign materials in the
reverse side of the head
3 Paper feed roller stained
4 Paper ejection roller stained
5 Switchback roller stained
User Check
- Check whether the recording paper being used is within
the specification.
- Clean the paper pull-in roller.
Cause
Replace the paper pull-in roller.
User Check
- Check whether the recording paper being
- Check whether the recording paper being
- Clean the related rollers by printing blank
- Clean the platen.
Cause
Clean the maintenance unit (refer to
(2-62).)
Remove foreign materials.
Replace the paper feed roller.
Replace the paper ejection roller.
Replace the switchback roller.
2-71
Solution
used is not folded.
used is within the specification.
paper.
Solution
Fig. 2-10
Confidential