Compuprint MDP 30FB, Programmer'S Manual

Page: 42 / 158

40
ESC :
Sets 12 CPI. (IBM)
ASCII Code ESC :
Hexadecimal Value 1B 3A
Decimal Value 27 58
This is a terminator code. It causes all data present in the print buffer to be printed.
Subsequent data will be printed at 12 cpi. This command is accepted at any position
within the line. The setting of another horizontal spacing resets this command.
ESC [ @
Sets double high printing and double line feed. (IBM)
ASCII Code ESC [ @ l h m
1
m
2
m
3
m
4
Hexadecimal Value 1B 5B 40 l h m
1
m
2
m
3
m
4
Decimal Value 27 91 64 l h m
1
m
2
m
3
m
4
l =normally 4
h = normally 0
m
1
= 0
m
2
= 0
This command sets height, width and vertical spacing. The l and h parameters specify
the number of mode bytes m
x
contained in the sequence. The m
3
and m
4
parameters
specify the printing characteristics.
m
3
controls both the line spacing and the character height. It has two parts: a high-
order half-byte of m
3
controls the line spacing and the low-order half-byte controls the
character height.