AMT Datasouth 41AY89AR777 - Manual (Page 99)

The total number of graphics bytes specified by N1 and N2 is determined by the
following equation:
N1 + (N2 X 256) = Total number of graphics bytes
N1 can range from 0 to 255. N2 can range from 0 to 7.
NOTE
N2 values greater than 7 are interpreted Modulo 8. The
printer interprets them as the remainder after they are
divided by 8. For example, 8,16 and 24 each equal 0
(there is 0 remainder after any of them are divided by 8);
9,17 and 25 each equal 1 (the remainder is 1 after any of
them are divided by 8); 15,23 and 31 each equal 7, etc.
Example:
CHR$(27); “K"; CHR$ (7 ) ; CHR$(1)
CHR$(27) is the escape code and “K” specifies single density graphics. The
number of graphics bytes specified by N1 and N2 is:
7 + (1X 256) = 263 graphics bytes
To specify 100 graphics bytes N1 must have a value of 100 and N2 a value of 0.
100 + (0 X 256) = 100 graphics bytes
NOTE
For computers that will not send 0, an 8 or any multiple
of 8 can be substituted.
To specify 300 graphics bytes N1 must have a value of 44 and N2 a value of 1.
44 + (1X 256) = 300 graphics bytes
In single density graphics the maximum line width is 816 dots. To specify 816
graphics bytes N1 must have a value of 48 and N2 a value of 3.
The user may also choose double density Epson graphics by sending ESC “L”
N1 N2. N1 and N2 have the same meaning as in the ESC “K” sequence. In
double density graphics the printhead moves over only half the normal distance
each time the printhead fires. This causes the dots to overlap on the horizontal
plane producing a horizontal resolution of 120 dots per inch. In double density
graphics the maximum line width is 1632 dots. To specify 1632 graphics bytes
N1 must have a value of 96 and N2 a value of 6.
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