Epson Apex-80 - Manual (Page 93)

SO
Select Double-wide Mode (one line)
Format:
ASCII code: S O
Decimal:
1 4
Hexadecimal: 0 E
Comments:
Double-wide mode doubles the width of all characters. This mode is
cancelled by a carriage return or DC4.
Esc so
Select Double-wide Mode (one line)
Format:
ASCII code: E S C S O
Decimal: 27 14
Hexadecimal: 1B 0E
Comments:
Duplicates the SO command.
DC4
Format:
Cancel Double-wide Mode (one line)
ASCII code: D C 4
Decimal: 20
Hexadecimal: 14
Comments:
Cancels one-line double-wide printing selected by SO or ESC SO,
but not double-wide printing selected by ESC W or ESC !.
A-22 Command Summary