Справочник Пользователя для Epson LX-80

You are familiar with the command format that uses the ESCape

code and a letter, but LX-80 graphics commands can also be in the

following format:

 

with m being the mode number found in the left column of Table 

9-l.

As usual,   and   reserve the number of columns for graphics. The

seven modes include six densities, with two speeds for double-
density.

The LX-80 has a graphics command that changes one graphics

mode to another. You can use it with many commercial graphics
software programs to change the density and shape of your printouts.

The code is ESCape “?s” n, where s is one of the four alternate

graphics codes (K, L, Y, or Z) and n is the number of the new code
(O-6).

For example, if you send the following code before you run a

graphics program, it will change every instance of mode “Y” (high-
speed double-density) to mode 5 (one-to-one).

 

As usual, this example is in MBASIC, but you can send the code in

any programming language.

Even if you don’t know which code your graphics program uses, a

little experimentation should tell you whether the reassigning code
can improve your graphics printouts.

Now that we’ve introduced you to the rest of the S-pin graphics

densities and the reassigning code, we’ll explain in more detail the part
of the graphics command that reserves the number of columns for

graphics (the numbers   and   in our examples).

If you need fewer than 255 columns of graphics,   is the number

of columns you want and   is zero. As you can see in Table 9-1,
however, a single line will hold as many as 1920 columns in quadru-
ple-density. Specifying more than 255 is where the second number

slot 

 fits in. The first number that you send 

 indicates a num-

ber of columns, but the second does not represent a number of

columns; it is multiplied by 256 and added to 

 The command for

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