Lake Erie Systems 8900 Series, Technical Reference Manual

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Epson FX Printer Emulation Mode 8-22
Character Pitch Commands
The character pitch commands let you choose between 10 and 12 cpi
or adjust the horizontal spacing between characters. The character
pitch is the horizontal distance from the center of one character to
the center of the next character.
Set Character Pitch to 10 cpi
Escape sequence: ESC P
Hexadecimal: 1B 50
This command selects 10 cpi character pitch and cancels 12 cpi
character pitch if it has been previously selected.
Set Character Pitch to 12 cpi
Escape sequence: ESC M
Hexadecimal: 1B 4D
This command selects 12 cpi character pitch for either draft or LQ
printing.
Set Intercharacter Space
Escape sequence: ESC SP n
Hexadecimal: 1B 20 n
This command adjusts the space between text characters (for both
draft and LQ printing) by an amount specified by the variable n
where n can be any value in the range of 0 through 128. The design
of each character of the standard character sets allows a certain
amount of space to the right of the character. The Set Intercharacter
Space command can add one or more 1/120 inch units of space to the
existing character space, depending upon the value of n. For example,
if the variable n is set to 12, the printer adds 12/120 (0.1) inch of
space to the existing space.