Brother MFC Series Service Manual page 85

■ All single color
Step
1 Carriage PCB defective
Head defective
2
Main PCB defective
3
■ Random color
Step
1
Maintenance unit stained
2
The head property value is
incorrect
3
Head calibration not performed Perform head calibration.
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.
- Check that Ink is refilled 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.
- Check that Ink is refilled correctly.
- Carry out head cleaning.
Cause
Clean the Maintenance unit.
(Refer to
Enter the head property value.
(Refer to
(Refer to
Carry out the recommended purge procedures.
Refer to "Recommended purge procedures" in
"Chapter 5, Section 1.4.26 "Purge Operation
(Maintenance mode 76)"
Replace the Carriage PCB ASSY.
Replace the Head/carriage unit.
Replace the Maintenance unit.
Replace the Main PCB ASSY.
2-53
Solution
Solution
Section 4.3.2 in this chapter)
Chapter 5, Section 1.4.22)
Chapter 5, Section 1.4.2)
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