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