Epson SQ-2000, Operating Manual

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Dots to print
Nozzle values
128 -
¡ ¡
64 -
¡
32 -
¡
16 -
¡
8 -
¡
4-
¡
2 -
¡
1 -
¡
Sum of nozzle values
73
226
255
Figure 6-3. Value
of
thegraphics data byte
Syntax of the Graphics Command
The SQ-2000 has one command that allows you to use any of
the 10 graphics options. The syntax of the command is:
<ESC> “*” s
n1 n2
data
In this command, s selects the graphics option and n1 and n2
specify the number of bytes of graphic data that follows. The
available graphics options are listed in Table 6-1.
Table 6-l. Graphics options
Option
Nozzles
s
Horiz. density
(dots/in.)
Single-density
8 0
6 0
Double-density
8 1
1 2 0
High-speed, double-density 8 2
1 2 0
Quadruple-density
8 3 2 4 0
QX-10 CRT screen 8
4
8 0
Other CRT screens
8
6
9 0
Single-density
2 4 3 2
6 0
Double-density
2 4 3 3
1 2 0
Other CRT screens 2 4
3 8 9 0
Triple-density 2 4
3 9 1 8 0