Brother MFC-3420C - Manual (Page 160)

TROUBLESHOOTING AND ROUTINE MAINTENANCE 13 - 13
STEP B: Alignment Check
The LCD shows:
9
Check the 600 dpi and 1200 dpi test
prints to see if number 5 most closely matches number 0. If the
number 5 sample of both the 600 dpi and 1200 dpi are the best
matches, press
1 ( Yes ) to finish STEP B.
—OR—
If another test print number is a better match for either 600 dpi
or 1200 dpi, press
2 ( No ) to select it.
10
For 600 dpi, press the number of the
test print that most closely matches
the number 0 sample (1-8).
11
For 1200 dpi, press the number of
the test print that most closely
matches the number 0 sample
(1-8).
12
Repeat Steps 1 and 2 (in Print Quality Check) to print another
sample Print Quality Check Sheet and then check it.
13
Press Stop/Exit .
When an ink head nozzle is
clogged the printed sample
looks like this. After the ink head nozzle is
cleaned, the horizontal lines
are gone.
Is Step “B” OK?
1.Yes 2.No
600dpi Adjust
Select Best #
1200dpi Adjust
Select Best #