Alignment Of Vertical Print Lines In Monochrome (Function Code 65) - Brother DCP375CW Service Manual

9.4.20 Alignment of Vertical Print Lines in Monochrome (Function code 65)

Function
This function allows you to align vertical lines printed in the forward and backward direction of
the head/carriage unit.
If the head/carriage unit or main PCB is replaced with a new one, you need to make the
adjustment given in this section.
NOTE: If the head/carriage unit is replaced, you need to make other adjustments in addition.
Refer to Chapter 7, Section 7.2 [ 4 ].
Operating Procedure
Before starting the operation below, be sure to set letter-size paper in the paper tray for
printing check patterns.
Models except DCPJ140W
(1) Press the 6 and 5 keys in this order in the initial stage of the maintenance mode. Then press
the 1 key. For models without numerical keypad, enter 6, 5, and 1 in this order using the
and OK keys.
The machine displays the "PRINTING" on the LCD and prints three sets of vertical
alignment check pattern A (see
for 450 dpi, 600 dpi and 1200 dpi, each of which consists of #0 through #8 blocks. #0 block
is a reference line of full alignment.
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. 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 (or you enter 1 or 8
using the ,
#4 or #5 block becomes aligned.
pages 9-45
, and OK keys) in the above procedure, then go back to step (1) to confirm that
and 9-46 for a sample printout) in monochrome
9-43
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