Brother HL- SERIES, Техническое справочное руководство, Страница: 255 / 392

Revision C 16/01/96
Chapter 6 " IBM Proprinter XL " - 19
Ÿ If bits 1 and 2 of n
4
are 00 and bit 8 is set to 0 the bytes that make up the character definition
define rows 2 to 9 of the grid, the most significant bit representing the second dot, and the
least significant bit representing the ninth dot down. Simply set a bit to 1 to print a dot in that
position on the grid, or to 0 to print white space.
Ÿ If bits 1 and 2 of n
4
are 01 the least significant bit of each data byte is replicated in rows 9 to
12 of the grid.
Ÿ If bits 1 and 2 of n
4
are 10 the bits 1 to 4 of each data byte are replicated in rows 9 to 12 of
the grid.
Ÿ Bits 5 to 7 of n
5
specify the number of columns left blank to the left of the defined character in
proportional spacing mode. Up to seven columns can be skipped.
Ÿ Bits 1 to 4 of n
5
specify the width in columns of the defined character in proportional spacing
mode. Up to fifteen columns can be used to define the character.
Ÿ Downloaded characters are selected using the Esc I command and then printed by sending the
appropriate character codes.
4.4 Graphics
Set single-density image mode
EscK n
1
n
2
< image data> (27)(75)n1n2<image data>
<1Bh><4Bh>n1n2<image data>
Ÿ This command enables you to define and print a single line raster bit image on a single text
line.
Ÿ n
1
and n
2
define the number of bytes that comprise the image.
Ÿ The image consists of 256*n
2
+n
1
bytes of data, each byte representing a single vertical column
of 4/30".
Ÿ Images are printed left to right.
Ÿ Images are printed at a horizontal resolution of 60 dots per inch and at an approximate
vertical resolution of 72 dots per inch.
Ÿ Each byte represents a vertical column of eight dots, the most significant bit representing the
dot at the top. Simply set a bit to 1 if you want a dot to appear in that position, and to 0 if
you want white space to appear.
10 WIDTH "LPT1:", 255
20 LPRINT "*** ESC K n1 n2 ***";CHR$(10);
30 FOR i=1 TO 5
40 '* STANDARD DENSITY BIT IMAGE MODE *
50 LPRINT CHR$(27);"K";CHR$(160);CHR$(0);
60 FOR J=1 TO 8
70 FOR K=1 TO 20
80 N=2^J-1
90 LPRINT CHR$(N);
100 NEXT K
110 NEXT J
120 LPRINT CHR$(10);
130 NEXT I:END
< Sample 15 >