User`s manual

Epson FX Emulation9–58
Graphics, Quadruple Density
ASCII Code ESC Z n1 n2
HEX Code 1B 5A n1 n2
Purpose Selects Quadruple Density Bit Image graphics of 240 dpi
horizontally and 72 dpi vertically.
Expression CHR$(27);”Z”;CHR$(n1);CHR$(n2);”DATA”
where n1 + 256 n2 define the number of data bytes to follow.
DATA = ASCII characters for the dot pattern bytes.
NOTE: “DATA” consist of 8–bit dot columns, with the MSB at the top, and
“1” bits producing dots. For more information, refer to the bit image
section in the Graphics chapter.
Comment This mode is similar to ESC L, except that four dot columns are
printed in the space normally taken by two columns. You can change
graphics density with the ESC ? command.
Example The following example produces quadruple density graphics of the
pattern used in the standard density example. The amount of data
must be quadrupled for quadruple density (the data are used 108
times rather than 27).