Brother DCPJ525W Service Manual page 111

Random color
Step
1 Maintenance unit contaminated
2 Head property data incorrect
3 Head calibration data not written
4 Connection failure of the head
flexible cable or carriage flat
cables
5 Carriage PCB defective
6 Maintenance unit defective
7 Print head defective
8 Main PCB defective
Light
Step
1 Maintenance unit contaminated
2 Head property data incorrect
3 Head calibration data not written
4 Carriage PCB defective
5 Maintenance unit defective
6 Print head defective
7 Power supply PCB defective
8 Main PCB defective
User Check
- Check that ink cartridges are loaded in the correct color slots.
- Perform head cleaning.
Cause
User Check
- Check whether the recording paper being used is within the specification.
- Check whether the paper type setting is correct.
- Replace the ink cartridge(s).
- Perform head cleaning.
Cause
2-66
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.
Perform head calibration with Function code 02.
Refer to Chapter 5, Section
Check the connection and reconnect the cables.
Replace the carriage PCB ASSY.
Replace the maintenance unit.
Replace the head/carriage unit.
Replace the main PCB ASSY.
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.
Perform head calibration with Function code 02.
Refer to Chapter 5, Section
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.
Chapter 2,
1.4.2.
Chapter 2,
1.4.2.
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