Brother MFC620CN Service Manual page 242

(6) Enter the measured value (in units of 0.1 mm) multiplied by 10.
(Example) Left: 10, Right: 13
MFC620CN/425CN/420CN/410CN/215C/215C/210C and FAX2440C
In this example, press the 1, 0, Menu/Set, 1, 3, and Menu/Set keys.
DCP315C/310CN/120C/115C/117C/110C
In this example, enter 1, 0, 1, and 3 by using the
(*To enter a numerical code on models having no numerical keypad, press the
display the numerical code to be entered and then press the Set key. Repeat this operation for each
numerical code.)
(7) Upon completion of the entry, the machine automatically returns to the initial stage of the
maintenance mode.
Go back to step (2) and print out the margin check pattern again.
(8) Measure the left and right margins on the printout.
If both margins are within the range from 0.9 to 1.1 mm, the adjustment is completed.
TIP: To reset the newly entered values to defaults, press the Black Start key or Mono Start
key.
and Set keys.*
6 - 2 0
key several times to
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