Vertical Alignment Check Patterns; 6 ] Align Vertical Print Lines (Function Code 65) - Brother DCP6690CW Service Manual

[ 6 ] Align vertical print lines (Function code 65)

Before starting the operation below, be sure to set A4-size paper in the paper tray for printing
check patterns.
(1) Press the 6, 5 and 1 keys in this order.
The machine prints out three sets of vertical alignment check patterns in monochrome for
450 dpi, 600 dpi, and 1200 dpi (see below and the next page), each of which consists of #0
through #8 blocks. If the vertical alignment is ON, #5 block shows vertically aligned lines
just like #0 block for each of 450 dpi, 600 dpi, and 1200 dpi.
The "450DPI NO.(1-8)" appears on the LCD.
(2) For 450 dpi, check the printed vertical alignment check patterns and find which number
block shows full alignment.
If the full alignment block is other than #5, enter that block number by using the numerical
keys.
The "600DPI NO.(1-8)" appears on the LCD.
(3) For 600 dpi, perform the same operation as in step (2).
The "1200DPI NO.(1-8)" appears on the LCD.
(4) For 1200 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 block is fully aligned so that you press the 1 or 8 key in the above procedure,
then go back to step (1) to confirm that #5 block becomes aligned.

Vertical Alignment Check Patterns (1/2)

7-22
Confidential