Printek FormsPro 4300 Owner's Manual page 66

IBM Proprinter Emulation
Double-High Mode
Selects single or double-high mode, single or double-wide mode, and single or double
line feeds.
The two bytes n1 and n2 specify how many mode bytes (m1, m2, m3, m4) follow.
Theoretically, there may be n1 + (n2 x 256) mode bytes. Actually, n2 must be 0, and
n1 may be 0 to 4, but is normally 4.
m1 and m2 must be 0 (NUL). m3 and m4 may be set to the values in the following
tables.
m3 hex
0 00
1 01
2 02
16 10
17 11
18 12
32 20
33 21
34 22
m4 hex
1 01
2 02
Example: The following escape sequence will select double-wide and double-high
mode, with double line feeds.
Escape Sequence:
Hexadecimal:
Select Subscript or Superscript Mode
Selects subscript mode for n=1, or superscript mode for n=0.
characters about half the normal height, in the bottom or top half of the normal
character cell.
Example: The following escape sequence will select superscript mode.
Escape Sequence:
Hexadecimal:
Cancel Subscript and Superscript Mode
Cancels subscript and superscript mode.
Escape Sequence:
Hexadecimal:
Page 4-6
character height and line spacing
no change
line feeds unchanged, single-high characters
line feeds unchanged, double-high characters
single line feeds, character height unchanged
single line feeds, single-high characters
single line feeds, double-high characters
double line feeds, character height unchanged
double line feeds, single-high characters
double line feeds, double-high characters
character width
single-wide characters
double-wide characters
ESC [ @
1B 5B 40
ESC S 0
1B 53 30
ESC T
1B 54
ESC [ @ n1 n2 m1 m2 m3 m4
4 0 0 0
04 00 00 00
34 2
22 02
ESC S n
This will print
ESC T