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Modes 4-7 in the
table
are special modes that alter the horizontal
density to give proportions of a computer monitor (the CRT modes), or
to match the vertical density so as to give round circles (the plotter
modes).
In two modes, high-speed double-density and quadruple-density the
print head cannot print two consecutive dots with the same pin, so that
it can print dots in only half the possible dot positions in any one row.
The higher density means that the resolution of the pattern is better
than in single-density mode. When you design patterns in these two
modes, however, you must see that no dots overlap.
Reassigning a graphics mode
Another graphics command lets you assign a different eight-pin
graphics mode to one of the specific eight-pin graphics commands. You
can use it with graphics software programs to quickly change the
density and proportions of your printouts. Changing the graphics option
changes the width without changing the height.
The command for reassigning a graphics mode is ESC ? c m. In this
command, c is a letter designating one of the four alternate graphics
codes (K, L, Y, or Z) and m is the mode number of the new mode, as
listed in Table 6-1.
For example, to change the ESC K command to select the CRT I
screen graphics mode, the command in BASIC would be the following:
Graphics
and User-defined Characters
6-9