18
ESC - n
[Name]
[Format]
[Range]
[Description]
[Notes]
[Default]
[Reference]
Turn underline mode on/off
ASCII ESC - n
Hex 1B 2D n
Decimal 27 45 n
0 ≤ n ≤ 2, 48 ≤ n ≤ 50
Turns underline mode on or off, based on the following values of n:
n Function
0, 48 Turns off underline mode
1, 49 Turns on underline mode (1-dot thick)
2, 50 Turns on underline mode (2-dots thick)
The printer can underline all characters (including right-side character spacing), but
cannot underline the space set by HT.
The printer cannot underline 90° clockwise rotated characters and white/black
inverted characters.
Changing the character size does not affect the current underline thickness.
Underline mode can also be turned on or off by using ESC !. Note, however, that the
last received command is effective.
n = 0
HT, ESC !
