Cleaning The Print Head; Checking The Print Quality - Brother MFC-J6910DW Basic User's Manual

Cleaning the print head

To maintain good print quality, the machine
will automatically clean the print head when
needed. You can start the cleaning process
manually if there is a print quality problem.
Clean the print head and ink cartridges if you
get a horizontal line in the text or graphics, or
blank text on your printed pages. You can
clean Black only, three colors at a time
(Yellow/Cyan/Magenta), or all four colors at
once.
Cleaning the print head consumes ink.
Cleaning too often uses ink unnecessarily.
IMPORTANT
DO NOT touch the print head. Touching
the print head may cause permanent
damage and may void the print head's
warranty.
a
Press .
b
Press Cleaning.
c
Press Black, Color or All.
The machine cleans the print head.
When cleaning is finished, the machine
will go back to the standby mode
automatically.
Note
If you clean the print head at least five
times and the print has not improved, try
installing a new Brother Original
Innobella™ ink cartridge for each problem
color. Try cleaning the print head again up
to five more times. If the print has not
improved call your Brother dealer.

Checking the print quality

A
If faded or streaked colors and text appear on
your output, some of the nozzles may be
clogged. You can check this by printing the
Print Quality Check Sheet and looking at the
nozzle check pattern.
a
Press
b
Press Test Print.
c
Press Print Quality.
d
Press Color Start.
The machine begins printing the Print
Quality Check Sheet.
e
Check the quality of the four color blocks
on the sheet.
f
The LCD asks you if the print quality is
OK.
Do one of the following:
 If all lines are clear and visible, press
Yes to finish the Print Quality check
and go to step j.
 If you can see missing short lines as
shown below, press No.
OK
g
The LCD asks you if the print quality is
OK for black and the three colors.
Press Yes or No.
h
The LCD asks you if you want to start
cleaning.
Press Color Start.
The machine starts cleaning the print
head.
Routine maintenance
.
Poor
A
A
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