Brother MFC-J5335DW Service Manual page 105

■ Stained leading edge of recording paper
Step
1 Maintenance unit stained
2 Paper feeding correction not
updated
3 Platen defective
4 Head defective
■ Overlapping lines over the whole page
Step
1 Head inclination is not correctly
adjusted.
2 Head calibration uncompleted
3 Paper feeding correction not
updated
4 PF encoder disk stained
5 Ink refill unit not mounted in
place
6 PF encoder disk defective
7 Head defective
8 Main PCB defective
< User Check >
- Check whether the recording paper being used is within
the specification.
Cause
Clean the maintenance unit.
(refer to
Update paper feed correction.
(refer to
Paper Feeding Correction Values (Maintenance
mode
Replace the platen.
Replace the head/carriage unit.
< User Check >
- Carry out head cleaning.
Cause
Adjust the head inclination.
(refer to
inclination")
Write the head calibration data.
(refer to
Head Calibration Data and Writing it into Flash
ROM (Maintenance mode
Update paper feed correction.
(refer to
Paper Feeding Correction Values (Maintenance
mode
Clean the PF encoder disk and flushing guide.
(refer to
or
Set the ink refill unit into place while pressing it
to the engine unit side.
Replace the PF encoder disk.
Replace the head/carriage unit.
Replace the main PCB.
2-69
Solution
Fig. 2-11 (2-64))
Chapter 5, Section 1.3.17 "Updating of
58)")
Solution
Chapter 4, Section 2.4 "Adjust head
Chapter 5, Section 1.3.2 "Creating of
Chapter 5, Section 1.3.17 "Updating of
58)")
"Precautions for Troubleshooting and/
Disassembly/Assembly")
02)")
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