InfoPrint LQ-1600K, Programmer'S Reference Manual

Page: 43 / 128

Graphics, Double Density
43
Graphics, Double Density
ASCII Code ESC L
n1 n2 d1 d2...dk
Hex Code 1B 4C n1 n2 d1 d2...dk
Dec Code 27 76 n1 n2 d1 d2...dk
Purpose Selects double density bit image graphics of 120 dpi
horizontally and 72 dpi vertically.
Expression CHR$(27);“L”;CHR$(
n1
);CHR$(
n2
);“
DATA
”
Where:
n1 = 0 through 255
n2 = 0 through 31
n1 + (256 x n2 ) defines the number of data bytes to follow.
d1 d2...dk = ASCII characters for the dot pattern bytes.
NOTE: d1 d2...dk (DATA ) consists of 8-bit dot columns, with the MSB at the
top and “1” bits producing dots. (0 < = d < = 255)
Comment Double density printing reduces print speed.
Example The following example produces double density bit-image
graphics of the pattern used in the standard density bit-image
mode example. The amount of data must be doubled for double
density (the data is used 54 times rather than 27).