Brother MFC-J6510DW

2-74
Confidential
 Random missing dots
 White horizontal streaks
User Check
- Check that ink remaining is insufficient.
- Perform head cleaning.
Step Cause Solution
1 Maintenance unit contaminated Clean the maintenance unit. Refer to Section 2.4.2.4.
2 Carriage PCB defective Replace the carriage PCB ASSY.
3 Clogging in the maintenance unit Replace the maintenance unit.
4 Print head defective Replace the head/carriage unit.
5 Power supply PCB defective Replace the power supply PCB ASSY.
6 Main PCB defective Replace the main PCB ASSY.
User Check
- Check if ink remaining is sufficient.
- Perform head cleaning.
Step Cause Solution
1 Maintenance unit contaminated Clean the maintenance unit. Refer to Section 2.4.2.4.
2 Inclination of head not adjusted Adjust the inclination of the head/carriage unit.
Refer to Chapter 4, Section 4.1.
3 Head calibration data not written Perform head calibration. See Function code 02.
(Refer to Chapter 5, Section 5.1.4.2.)
4 Paper feeding correction value not
updated
Update the paper feeding correction value. Refer to
Chapter 5, Section 5.1.4.16.
5 PF encoder disk stained or
scratched
Replace the PF encoder disk and clean the flushing
guide. (Refer to Chapter 3, Section 3.1.)
6 Carriage PCB defective Replace the carriage PCB ASSY.
7 Clogging in the maintenance unit Replace the maintenance unit.
8 Print head defective Replace the head/carriage unit.
9 Main PCB defective Replace the main PCB ASSY.