Brother DCP-J552DW Service Manual page 100

■ Stain on the leading/trailing edge of the recording paper
Step
1 Maintenance unit stained
2 Paper feeding correction not
aligned
3 Head defective
■ Overlapping lines over the whole page
Step
1 Paper feeding correction not
aligned
2 Head inclination is not adjusted
3 Head calibration not performed
4 PF encoder disk stained
5 PF encoder disk defective
6 Head defective
7 Main PCB defective
<User Check>
- Check if the recording paper used is according to specifications.
- Check if the recording paper used is not folded.
Cause
Clean the maintenance unit.
(Refer to
Perform paper feeding correction.
(Refer to
Replace the head/carriage unit.
Cause
Perform paper feeding correction.
(Refer to
Adjust the head inclination.
(Refer to
Perform head calibration.
(Refer to
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.
2-67
Solution
Section 4.3.2 in this chapter)
Chapter 5, Section 1.3.19)
Solution
Chapter 5, Section 1.3.19)
Chapter 4, Section 2.4)
Chapter 5, Section 1.3.2)
Chapter 3, Section 1)
Confidential