Technical Reference Guide – Command descriptions > 152
ML1120 eco: EPS FX/IBM III
> Function:
Double width characters print mode is cancelled by this 
command.
> Related functions:
Does not cancel double width set by ESC W n or ESC ! n.
Only cancels double width mode set by SO or ESC SO 
(Epson mode only).
S
ET
/
RESET
 
DOUBLE
 
HEIGHT
 
CHARACTERS
> Code: ESC US n
> Compatibility: 
ML1190 eco: EPSON LQ/IBM
ML1120 eco: EPS FX/IBM III
> Function:
Characters will be printed twice as high after receiving this 
command.
> Range:
n = 00H, 30H, 80H, B0H – RESET double height printing.
n = 01H, 31H, 81H, B1H – SET double height printing.
> Additional details:
This command applies to all characters.
Double height can be mixed with standard height 
characters in the same line. The Double height characters 
will be printed two times as high from the same base line 
as the standard height.
Double height characters are printed unidirectionally in two 
passes.
Underline in double height will be 4 dots below.
This command duplicates the ESC w n command.