Brother DCP-J552DW Service Manual page 282

Adjusting the bottom margin
(1) Measure the bottom margin on the printed check pattern 1.
(Example) Bottom margin: 3.2 mm
If it is within the range from 0.0 to 5.0 mm, no adjustment is required. If not, go to step (2).
(2) If the bottom margin is out of the specified range, press the [6] key twice.
The "Select 66?" appears on the LCD.
(3) Press the [Mono Start] key.
The "MEDIA SENSOR ADJ" appears on the LCD.
(4) Press the [#] key to display "BOTTOM :30."
(5) To adjust the bottom margin, enter the measured bottom margin value (in units of 0.1 mm)
multiplied by 10.
In this example, the bottom margin measured in step (1) is 3.2 mm, so press the [3], [2], and
[SET] or [OK] keys.
The machine returns to the initial stage of the maintenance mode.
(6) Using the procedure step (3) of "Printing the left, right, top and bottom margin check pattern",
print the margin check pattern again.
(7) Measure the bottom margin on the printed pattern.
If it is within the range from 0.0 to 5.0 mm, the adjustment is completed.
Note To reset the measured margin values newly entered in the above procedure, press the [6], [6],
[Mono Start], [8], [9], [5] and [4] keys in this order in the initial stage of the maintenance mode. The
machine shows "PARAMETER INIT" on the LCD and returns to the initial stage of the
maintenance mode.
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