Epson LQ-1050, User Manual

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Following the specification of the range of characters to be defined
in this command are three data bytes,
and d2, that specify the
width of the character and the space around it. The left space (in dot
columns) is specified by
and the right space is specified by
d2.
The second byte, specifies the number of columns of dots that
are printed to make up the character. By varying the width of the
character and the spaces around it, you can create proportional-
width characters that print at draft speed. The table below shows
the maximum values for these bytes.
Mode
Draft 9
Letter Quality 10 cpi 29
Letter Quality 12 cpi
23
Proportional 37
12
36
30
42
The last part of the command to define your characters is the actual
data that defines the dot patterns for each character. Since it takes
three bytes to specify all the dots in one vertical column, your
printer expects x 3 bytes of data to follow
d2.
Software and Graphics
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