Brother MFC Series Service Manual page 87

■ The entire image is dark
Step
1
Maintenance unit stained
2
The head property value is
incorrect or head calibration
has not been performed
3
Head calibration not performed Perform head calibration.
4
Carriage PCB defective
5
Maintenance unit defective
6
Head defective
7
Main PCB defective
<User Check>
- Check whether the paper type setting is correct.
Cause
Clean the Maintenance unit.
(Refer to
Enter the head property value.
(Refer to
(Refer to
Replace the Carriage PCB ASSY.
Replace the Maintenance unit.
Replace the Head/carriage unit.
Replace the Main PCB ASSY.
2-55
Solution
Section 4.3.2 in this chapter)
Chapter 5, Section 1.4.22)
Chapter 5, Section 1.4.2)
Confidential