Compuprint 4247-L03 Programmer Manua - Manual (Page 39)

The m
3
parameter controls both line spacing and 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.
m
3
Character Height Line Spacing
0 No Change No Change
1 Standard character height Line feeds unchanged
2 Double character height Line feeds unchanged
16 Character height unchanged Normal line feeds
17 Standard character height Normal line feeds
18 Double character height Normal line feeds
32 Character height unchanged Double line feeds
33 Standard character height Double line feeds
34 Double character height Double line feeds
The m
4
parameter specifies the character width. Only the low-order half-byte is significant in this mode
byte. The high-order half-byte is ignored.
m
4
Character Width Line Spacing
0 No change No change
1 Standard width character No change
2 Double width character No change
ESC [ d
Set the print quality. (IBM 2391 + only)
ASCII Code ESC [ d 1 0 n
Hexadecimal Value X'1B' X'5B' X'64' 01 00 n
Decimal Value 27 91 100 1 0 n
This command sets the print quality to draft or LQ print.
n Types
0 No Change
From 64 to 127 Draft
From 128 to 254 Letter Quality
255 Initialization on NVRAM values
Chapter 2. EPSON/IBM Mode 23