Brother MFC-5890CN User Manual page 185

f
The LCD asks you if the print quality is
OK.
Do one of the following:
If all lines are clear and visible, press
1 (Yes) to finish the Print Quality
check and go to step j.
If you can see missing short lines as
shown below, press 2 to choose No.
<Black>
OK
<Colour>
OK
g
The LCD asks you if the print quality is
OK for black and three colours.
Press 1 (Yes) or 2 (No).
h
The LCD asks you if you want to start
cleaning.
Press 1 (Yes).
The machine starts cleaning the print
head.
i
After cleaning is finished, press
Colour Start.
The machine starts printing the Print
Quality Check Sheet again and then
return to step e.
Poor
Poor
Troubleshooting and Routine Maintenance
j
Press Stop/Exit.
If you repeat this procedure at least five
times and the print quality is still poor,
replace the ink cartridge for the clogged
colour.
After replacing the ink cartridge, check
the print quality. If the problem still
exists, repeat the cleaning and test print
procedures at least five times for the
new ink cartridge. If ink is still missing,
call your Brother dealer.
CAUTION
DO NOT touch the print head. Touching the
print head may cause permanent damage
and may void the print head's warranty.
Note
i
When a print head
nozzle is clogged
the printed
sample looks like
this.
After the print
head nozzle is
cleaned, the
horizontal lines
are gone.
173
B