Brother DCPJ525W Service Manual page 114

Ink splash
Step
1 Maintenance unit contaminated
2 Head property data incorrect
3 Carriage PCB defective
4 Maintenance unit defective
5 Print head defective
6 Power supply PCB defective
7 Main PCB defective
Print edges not aligned
Step
1 Vertical print lines not aligned
2 Inclination of head not adjusted
3
CR encoder strip stained
4 Print head defective
5 Power supply PCB defective
6 Main PCB defective
User Check
- Perform head cleaning.
- If ink is old, replace the ink cartridge(s).
Cause
User Check
- Check whether the recording paper being used is thicker than the specified
limit.
Cause
2-69
Solution
Clean the maintenance unit. Refer to
Section 4.2.6.
Enter the correct head property data. Refer to
Chapter 5, Section 1.4.23.
Replace the carriage PCB ASSY.
Replace the maintenance unit.
Replace the head/carriage unit.
Replace the power supply PCB ASSY.
Replace the main PCB ASSY.
Solution
Adjust vertical print lines with Function code 65.
Refer to Chapter 5, Section
Adjust the inclination of the head/carriage unit.
Refer to Chapter 4, Section
Replace the CR encoder strip.
Replace the head/carriage unit.
Replace the power supply PCB ASSY.
Replace the main PCB ASSY.
Chapter 2,
1.4.21.
1.4.
Confidential