Brother DCP-J552DW Service Manual page 94

■ All single color
Step
1 Carriage PCB defective
2 Head defective
3 Main PCB defective
■ Random color
Step
1 Maintenance unit stained
2 The head property value is
incorrect
3 Head calibration not performed
4 Non-discharge of ink from head
5 Carriage PCB defective
6 Head defective
7 Head wiper defective
8 Main PCB defective
<User Check>
- Check that ink cartridge is loaded correctly.
Cause
Replace the carriage PCB ASSY.
Replace the head/carriage unit.
Replace the main PCB ASSY.
<User Check>
- Check that ink cartridge is loaded correctly.
- Carry out head cleaning.
Cause
Clean the maintenance unit.
(Refer to
Enter the head property value.
(Refer to
Perform head calibration.
(Refer to
Carry out the recommended purge procedures. Refer
to "Recommended purge procedures" in
Section 1.3.29 "Purge Operation (Maintenance mode
76)".
Replace the carriage PCB ASSY.
Replace the head/carriage unit.
Replace the maintenance unit.
Replace the main PCB ASSY.
2-61
Solution
Solution
Section 4.3.2 in this chapter)
Chapter 5, Section 1.3.25)
Chapter 5, Section 1.3.2)
Chapter 5,
Confidential