Brother DCP-J4110DW Service Manual page 105

Light

Step
1 Maintenance unit stained
2 Wrong head property value
3 Head correction uncompleted
4 Non-discharge of ink from head
5 Carriage PCB defective
6 Maintenance unit defective
7 Head defective
8 Main PCB defective
Dark

Step
1 Maintenance unit stained
2 Wrong head property value
3 Head correction uncompleted
4 Carriage PCB defective
5 Maintenance unit defective
6 Head defective
7 Main PCB defective
User Check
- Check whether the recording paper being used is within the
specification.
- Check whether the paper type setting is correct.
- Carry out head cleaning.
- Replace the ink cartridge.
Cause
Clean the maintenance unit (refer to
this Chapter.)
Input the head property value (refer to
Section
Input the head correction data (refer to
Section
Perform the recommended purge procedures.
Refer to "Recommended purge procedures" in
Chapter 5, Section 1.3.29 "Purge Operation
(Maintenance mode 76)."
Replace the carriage PCB ASSY.
Replace the maintenance unit.
Replace the head/carriage unit.
Replace the main PCB ASSY.
User Check
- Check whether the paper type setting is correct.
Cause
Clean the maintenance unit (refer to
this Chapter.)
Input the head property value (refer to
Section
Input the head correction data (refer to
Section
Replace the carriage PCB ASSY.
Replace the maintenance unit.
Replace the head/carriage unit.
Replace the main PCB ASSY.
2-68
Solution
1.3.25.)
1.3.2.)
Solution
1.3.25.)
1.3.2.)
Section 4.3.2 in
Chapter 5,
Chapter 5,
Section 4.3.2 in
Chapter 5,
Chapter 5,
Confidential