Epson 8900 Series - Manual (Page 178)

Epson FX Printer Emulation Mode 8-26
Enable Character Positions 0-31 and 128-159 as Printable
Characters
Escape sequence: ESC I SOH
Hexadecimal: 1B 49 01
This command enables the printer to treat the characters in character
positions 0-31 (C0 control characters) and 128-159 (C1 control
characters) as printable characters.
Disable Character Positions 0-31 and 128-159 as Printable
Characters
Escape sequence: ESC I NUL
Hexadecimal: 1B 49 00
Print Enhancement Commands
The print enhancement commands enable your printer to improve or
enhance the print quality. Print enhancements include such things as
superscript and subscript text, text underlining, expanded, compressed,
double-high, LQ, shadow, and emphasized print to make the print
appear bolder. The following paragraphs describe the print enhancement
commands.
Select Expanded Print for One Line
Control character: SO
Hexadecimal:
0E
Escape Sequence: ESC SO
Hexadecimal: 1B 0E
These commands select the expanded (double-wide) print mode for
either draft or LQ printing. Either a Carriage Return or a Cancel
Expanded Print command cancels the expanded print mode; therefore,
for two or more consecutive lines of expanded print you must invoke
the command for each line.