Brother MFC5100C Service Manual page 118

(10) From your PC, send the specified test chart to the machine to print it out.
(11) Check the printed test patterns 1 though 5 (see the test pattern sample
and choose one that has the least uneven print (Pattern 2 in this sample). Make a note of the
pattern number.
(12) Press the Ink key on the machine's control panel to place it in the ink replacement mode.
The carriage automatically moves to the ink replacement position.
(13) Open the scanner unit.
(14) Turn the head adjuster lever to the position indicated by the pattern number you recorded in
step (11).
NOTE: Always turn the head adjuster lever in an ascending order. If you want to set the head
adjuster lever to position 3, for example, turn it from 1 to 3. Once you have turned it to
position 4, you need to turn it back to position 1 and then turn it to 3.
(15) Close the scanner unit.
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