Brother HL-J6000DW Service Manual page 110

■ Vertical streaks
Step
1 Foreign materials in the CR
guide 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 CR
guide 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
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 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 the recommended procedures in
Chapter 5, Section 1.3.28 "Purge Operation
(Maintenance mode
Replace the CR encoder strip.
Replace the carriage motor ASSY.
Replace the head/carriage unit.
2-70
< User Check >
- Check whether the recording paper
being used is within the specification.
- Clean the related rollers by printing
blank paper.
- Clean the platen.
Solution
Solution
76)".
Confidential