5 ] Align Vertical Print Lines - Brother MFC640CW Service Manual

[ 5 ] Align vertical print lines

(1) MFC820CW/640CW
Press the 6, 5 and 1 keys in this order.
DCP340CW
Enter 6,5, and 1 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.)
The machine prints out a set of vertical alignment check patterns (see the next page) which
consist of #0 to #8 lines for each of the 600 dpi and 1200 dpi, and #1 to #8 for 750 dpi.
If the vertical alignment is ON, #0 line (each in the 600 dpi and 1200 dpi printouts) shows
vertically aligned lines as given on the next page.
The "600DPI NO.(1-8)" appears on the LCD.
(2) Check the printed vertical alignment check patterns for the 600 dpi and find which number line
shows full alignment.
MFC820CW/640CW
If the line is other than No. 5, enter that line number by using the numerical keys.
DCP340CW
If the line is other than No. 5, enter that line number by using the
The "1200DPI NO.(1-8)" appears.
(3) For the 1200 dpi, perform the same operation as in step (2).
The "750DPI NO.(1-8)" appears.
(4) For the 750 dpi, perform the same operation as in step (2).
The machine automatically returns to the initial stage of the maintenance mode.
NOTE: If #1 or #8 line is fully aligned so that you press the 1 or 8 key (or you enter 1 or 8
and press the Set key) in the above procedure, then go back to step (1) to confirm that #0 line
becomes aligned.
and Set keys on the machine.*
6 - 1 5
key several times to
and Set keys.*
Confidential