Turns quadruple-size mode on or off for multi-byte code character.
• When the LSB of n is 0, quadruple-size mode is turned off and normal size is specified.
• When the LSB of n is 1, quadruple-size mode is turned on.
■ Settings of this command affect multilingual characters and user-defined characters.
■ When a double-height mode is specified, a character is enlarged based on a baseline
of the character and when a double-width mode is specified, a character is enlarged
based on the left side of the character.
■ Settings of this command are effective until FS ! is executed, GS ! is executed, ESC @
is executed, the printer is reset, or the power is turned off.