Star Micronics NB24-10/15 user manual Compatibility with Existing Software

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third, and fourth dots, add their values (128 + 32 + 16) to send this total: CHR$(176). This is one byte of graphics data; it would replace ml in our format statement.

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[24-dot graphics] (Standardmode) IBM mode)

[g-dot graphics]

Ggure 7-6.Starting with the most significant bit at the top, each third pin of the print head is assigned a value which is a power of two in case of B-dot graphics modes.

COMPATIBILITY WITH EXISTING SOFTWARE

With its ability to print eleven different graphics densities, this printer’s graphics abilities are advanced indeed. There are many programs, in fact, that are unable to use this printer’s single graphics command (ESC) “*” for selecting the proper density. To maintain compatibility with this software, there are individual commands to select each of this printer’s common graphics densities. These commands, which are shown in Table 7-4, can be used interchangeably with the corresponding (ESC) “*” command. Like the commands you are already familiar