Brother DCP-J4110DW Service Manual page 106

Straight vertical stripes

Step
1 Foreign materials in the carriage
rail
2 Recording paper path
contaminated
3 CR encoder strip stained
4 Carriage flat cable not mounted in
place
5 Ink supply tubes not mounted in
place
6 CR encoder strip defective
White vertical streaks

Step
1 Foreign materials in the carriage
rail
2 CR encoder strip stained
3 Non-discharge of ink from head
4 CR encoder strip defective
5 Carriage motor defective
6 Head defective
User Check
- Check whether the recording paper being used is within the
specification.
- Clean the related rollers by printing blank paper.
- Clean the platen.
Cause
Remove foreign materials.
Clean the recording paper path.
Clean the CR encoder strip.
Set the Carriage flat cable into place.
Set the ink supply tubes guide into place.
Replace the CR encoder strip.
User Check
- Carry out head cleaning.
Cause
Remove foreign materials.
Clean the CR encoder strip.
Perform the recommended purge procedures.
Refer to "Recommended purge procedures" in
Chapter 5, Section 1.3.29 "Purge Operation
(Maintenance mode 76)."
Replace CR encoder strip
Replace the carriage motor ASSY.
Replace the head/carriage unit.
2-69
Solution
Solution
Confidential