Printek FormsMaster 8000 Programmer's Manual page 54

IBM Proprinter Emulation
Select Double-Wide Mode (one line)
(or)
Selects double-wide mode for one line. Double-wide mode doubles the width of all characters, but
does not affect character height. This mode is cancelled by a carriage return or DC4.
Control code:
Hexadecimal:
Escape Sequence:
Hexadecimal:
Cancel Double-Wide Mode (one line)
Cancels double-wide mode selected by SO or ESC SO. Does not cancel double-wide mode selected
by ESC W or ESC !.
Control code:
Hexadecimal:
Double-Wide Mode
Selects double-wide mode for n=1, or cancels for n=0. Double-wide mode doubles the width of all
characters, but does not affect character height.
Example: The following escape sequence will select double-wide mode.
Escape Sequence:
Hexadecimal:
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.
48
SO
0E
ESC SO
1B 0E
DC4
14
ESC W 1
1B 57 31
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 SO
ESC W n
ESC [ @ n1 n2 m1 m2 m3 m4
SO
DC4