Epson SQ-2000, Operating Manual

Page: 96 / 181

Here is the BASIC program adapted for 24-dot graphics.
10 WIDTH "LPT1:",255
20 LPRINT CHR$(27) "*" CHR$(39) CHR$(42) CHR$(0);
30 FOR X=1 TO 126
40 READ N
50
LPRINT CHR$(N);
60 NEXT X
70 LPRINT
80 DATA 0,0,63,0,0,127,0,0,255,0,3,255,0,3,255,0,15,255,0,31,255
90 DATA 0,127,255,0,255,255,1,255,255,3,255,255,7,255,255,
15,255,255
100 DATA 31,255,254,31,255,252,31,255,248,31,255,240,31,2
55,224,31,255,192
110 DATA 31,255,0,31,252,0,31,240,0,31,224,0,31,1283,0,31,2
40,0
120 DATA 31,255,192,28,255,224,28,127,240,28,15,248,30,O,
252,31,0,126
130 DATA 15,128,15,7,192,7,3,24O,7,l,254,7,O,255,7,O,l27,l
35
140 DATA O,31,199,O,7,231,0,1,247,O,O,255,O,0,127,O,O,63
In this program, line 20 assigns the graphics option (24-dot
triple-density) with ASCII decimal 39. ASCII decimal 42 sets the
number of nozzle columns at 42. Lines SO-140 contain 126 bytes
of data (42 nozzle columnsX3 bytes for each nozzle column).
Lines 30-60 contain the subroutine to print the design.
The resulting design will be approximately the same size as
the original line design, but the dots will be printed much closer
together. And this is how the new design looks:
The shape is just about the same, but the density is much
greater. This design requires 126 bytes of graphics data instead of
the 14 bytes that were required using the B-dot graphics option.
Notice that the dots overlap quite a bit. This design was
printed using the triple-density 24-dot graphics option because
the density is the same (180 dots to the inch) in both directions.
Therefore, when you turned each dot of B-dot graphics into nine
dots of 24-dot graphics, the shape of the design remained
approximately the same.
77