Brother MFC Series - Page 90

2-58
Confidential
■ Random missing dots
■ White horizontal streaks
<User Check>
- Carry out head cleaning.
- Replace the Ink cartridge.
- Refill Ink.
Step Cause Solution
1 Maintenance unit stained Clean the Maintenance unit.
(Refer to Section 4.3.2 in this chapter)
2
Non-discharge of ink from head Carry out the recommended purge procedures. Refer to
"Recommended purge procedures" in "Chapter 5, Section
1.4.26 "Purge Operation (Maintenance mode 76)"
3 Carriage PCB defective Replace the Carriage PCB ASSY.
4 Maintenance unit defective Replace the Maintenance unit.
5 Head defective Replace the Head/carriage unit.
6 Main PCB defective Replace the Main PCB ASSY.
<User Check>
- Check if it is not in draft mode.
- Replace the Ink cartridge.
- Refill Ink.
- Carry out head cleaning.
Step Cause Solution
1 Maintenance unit stained Clean the Maintenance unit.
(Refer to Section 4.3.2 in this chapter)
2 Paper feeding correction not
aligned
Perform paper feeding correction.
(Refer to Chapter 5, Section 1.4.17)
Adjust the AMS06.
(Refer to Chapter 5, Section 1.4.32)
3 Head inclination is not adjusted Adjust the head inclination.
(Refer to Chapter 4, Section 2.4)
4 Head calibration not performed Perform head calibration.
(Refer to Chapter 5, Section 1.4.2)
5
Non-discharge of ink from head Carry out the recommended purge procedures. Refer to
"Recommended purge procedures" in "Chapter 5, Section
1.4.26 "Purge Operation (Maintenance mode 76)"
6 PF encoder disk stained Clean the PF encoder disk and flushing guide.
(Refer to Chapter 3, Section 1)
7 PF encoder disk defective Replace the PF encoder disk.
8 Carriage PCB defective Replace the Carriage PCB ASSY.
9 Maintenance unit defective Replace the Maintenance unit.
10 Head defective Replace the Head/carriage unit.
11 Main PCB defective Replace the Main PCB ASSY.