Star Micronics TSP400 Series Programmer's Manual page 84

Commands to Print Dot Graphics
Print normal density graphics
FUNCTION
CODE <ESC> "K"
1B
HEX
Prints normal density dot graphics. The graphics image is 24 dots
REMARKS
high and n
m1, m2, ... are the dot data, each a 1-byte value from 0 to 255
representing 24 vertical dots, with the most significant bit repre-
senting the top three and the least significant bit representing the
bottom three.
The number of data bytes must be n.
Dots beyond the right margin are ignored.
Relationship between image data and print dots
DOT Position
1 2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
n <0>
4B n
3 dots wide. Maximum width is 600 dots.
MSB
D8 D7
3
m1 m2
00 m1 m2
Image data
D6 D5 D4 D3
– 81 –
...
...
LSB
D2 D1