Epson FX-286e User Manual page 107

Print Size/Width/Enhancements
Four modes in the IBM printer emulation mode are incompatible
with each other. These modes are pica, elite, condensed, and
proportional. (Proportional is available only on the FX-286e.)
Therefore, if you select any one of these, you cancel all the others.
E s c :
Format:
ASCII code:
Decimal:
Hexadecimal:
Comments:
Elite pitch has 12 characters per inch.
ESC P
Format:
ASCII code:
Decimal:
Hexadecimal:
Comments:
The following values can be used for n:
1: Mode is turned ON.
0: Mode is turned OFF.
The width of proportional characters varies from character to
character. Therefore, a narrow letter like i receives less space than a
wide letter like W. The proportional widths are given in the
character tables, which appear in Appendix B. This command
overrides condensed, pica, and elite.
Command Summary
ESC :
27 58
1B 3A
Turn Proportional Mode On/Off (FX-286e)
ESC P
27 80
1B 50
n
n
n
(The characters "0" and "1"
can also be used.)
Select Elite Pitch
A - 4 1