Brother MFC-J6510DW Service Manual page 107

Separated lines at the trailing edge of the recording paper
Step
1 Paper feeding correction value not
updated
2 PF encoder disk stained or
scratched
3 Engine unit defective
4 Main PCB defective
Characters having shadows (ghost)
VWXYZ
Step
1 Paper feeding correction value not
updated
2 Vertical print lines not aligned
3 PF encoder disk stained or
scratched
4 Print head defective
5 Main PCB defective
User Check
- Perform head cleaning.
Cause
User Check
- Perform head cleaning.
Cause
2-77
Solution
Update the paper feeding correction value. Refer to
Chapter 5, Section 5.1.4.16.
Replace the PF encoder disk and clean the flushing
guide. (Refer to Chapter 3, Section
Replace the engine unit.
Replace the main PCB ASSY.
Solution
Update the paper feeding correction value, using
Function code 58. (Refer to
5.1.4.16.)
Align vertical print lines, using Function code 65.
(Refer to Chapter 5, Section
Replace the PF encoder disk and clean the flushing
guide. (Refer to Chapter 3, Section
Replace the head/carriage unit.
Replace the main PCB ASSY.
3.1.)
Chapter 5, Section
5.1.4.20.)
3.1.)
Confidential