Epson 8900 Series - Manual (Page 149)

IBM Proprinter XL Emulation 7-19
Cancel Boldface Print
Escape sequence: ESC H
Hexadecimal: 1B 48
Select Shadow Print
Escape sequence: ESC E
Hexadecimal: 1B 45
Cancel Shadow Print
Escape sequence: ESC F
Hexadecimal: 1B 46
Select Superscript Print
Escape sequence: ESC S NUL
Hexadecimal: 1B 53 00
After receiving this command the printer prints each subsequent
character in the upper part of the character space at about two-thirds
its normal height.
Cancel Superscript Print
Escape sequence: ESC T
Hexadecimal: 1B 54
Select Subscript Print
Escape sequence: ESC S SOH
Hexadecimal: 1B 53 01
After receiving this command the printer prints each subsequent
character in the lower part of the character space at about two-thirds
its normal height.
Cancel Subscript Print
Escape sequence: ESC T
Hexadecimal: 1B 54