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create proportional width characters that print at draft speed.
When defining draft characters, the number of printed col-
umns (ml) cannot exceed 9, and the sum of m0 + ml + m2 can
not exceed 12.
n Assigning a value to your character
We’ve done a pretty through job of designing and describing a
user-defined character. But this printer has room for 128
download characters -
how does it knows which standard
character we want to print: every character is assigned a unique
number.
The standard characters are assigned the ASCII code -
numbers from 0 to 255. For the download character sets you can
define any positions between 0 to 127. This means that once a
character is defined and assigned a value (and the download
character set is selected), you can use that character on the
printer the same way you would any standard character. You
can send the character with the same ASCII value. You can also
access the character from a BASIC program with the CHR$
function.
The entire range of ASCII codes (from 0 to 127) can be used
., ..;,,
123456769
ASCIICO~~: 64
L9ftspa.x: 1
Riohtspace: 2
Data
1st: 1.244. A
2nd: 6. 8, (6.
3rd: fJ.l@I,d.
4th: A 1. 6.
5th: 2c. 9’7.128
6th: @.p.@.
123456769
ASCII code: 62
Figure 8-8. Character designs for the two graph symbols.