Epson Apex-80 - Manual (Page 95)

ESC G Select Double-strike Mode
Format:
ASCII code: ESC G
Decimal: 27 71
Hexadecimal: 1B 47
Comments:
Makes text bolder by printing each line twice, with the second
printing slightly below the first. In NLQ the mode is not available
but is not cancelled.
ESC H Cancel Double-strike Mode
Format:
ASCII code: ESC H
Decimal: 27 72
Hexadecimal: 1 B 48
Comments:
Turns off the double-strike mode selected by ESC G.
ESC S O Select Superscript Mode
Format:
ASCII code: ESC S NUL
Decimal: 27 83 0
Hexadecimal: 1B 53 00
Comments:
Prints characters about two-thirds of the normal height in the upper
part of the character space. The ASCII code 0 or the character “0”
can be used in this command. It is cancelled with ESC T.
A-24 Command Summary