Pe p, Ps p, Figure 4.1 draft character – AMT Datasouth 41AY89AR777 User Manual
Page 87: Figure 4.2 dot position values
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The following example demonstrates how to complete the escape sequence
which will download a character in 10 pitch draft. The character “A” will be
downloaded into the U.S. ASCII character set in place of the existing “=”
character.
The dot pattern for the “A” character must be defined in terms of an 8 X 11
matrix. See Figure 4.1. The matrix is divided into 11 columns, designated PI
through Pll. Each colinnn is divided into eight dot locations. Each dot location is
assigned a decimal value. The decimal values for the printable dots in each
column are added and this value is sent to the printer as character data (PI - PI 1).
P3
P
4
P
5
Pe
P
7
Ps
P
9
<6 >
<8 >
<1 8 >
<3 2 >
<6 6 >
<3 2 >
<1 8 >
<8 >
<6 >
<0 >
10 10 10 10
Figure 4.1 Draft Character
10
10
10
10
10
10
< 0 >
10
The first colunm (PI) of die “A” character has printable dots in the second and
third dot locations. PI therefore has a decimal value of 6. See Figure 4.2. This
method for determining the character data is used for each column. In Figure 4.1,
the decimal value for PI through PI 1 is given directly imder each column.
DOT
POSITION
1
2
3
4
5
6
7
8
DECIMAL
VALUE
128
6 4
32
16
8
4
2
1
Figure 4.2 Dot Position Values
4-28