Brother DCP-J4110DW Service Manual page 109

Stained leading edge of recording paper

Step
1 Maintenance unit stained
2 Paper feeding correction value not
updated
3 Head defective
Overlapping lines over the whole page

Step
1 Head inclination is not correctly
adjusted.
2 Head correction uncompleted
3 Paper feeding correction value not
updated
4 PF encoder disk stained
5 PF encoder disk defective
6 Head defective
7 Main PCB defective
User Check
- Check whether the recording paper being used is within the
specification.
Cause
Clean the maintenance unit (refer to
this Chapter.)
Adjust the paper feeding correction value (refer to
Chapter 5, Section
Replace the head/carriage unit.
User Check
- Carry out head cleaning.
Cause
Adjust the head inclination (refer to
Section
Input the head correction data (refer to
Section
Adjust the paper feeding correction value (refer to
Chapter 5, Section
Clean the PF encoder disk and flushing guide (refer
to
Replace the PF encoder disk.
Replace the head/carriage unit.
Replace the main PCB ASSY.
2-72
Solution
1.3.19.)
Solution
2.4.)
1.3.25.)
1.3.19.)
Chapter 3, Section 1.)
Section 4.3.2 in
Chapter 4,
Chapter 5,
Confidential