User's Manual

-34-
ESC – n
[Name] Turn underline mode on/off
[Format] ASCII ESC - n
Hex 1B 2D n
Decimal 27 45 n
[Range] 0 n 2, 48 n 50
[Description] 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)
[Details] 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.
When underline mode id turned off by setting the value of n to 0 or 48, the
following data is not underlined, and the underline thickness set before the
mode is turned off does not change. The default underline thickness is 1 dot.
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.
This command does not affect the setting of Kanji characters.
[Default] n = 0
[Reference] ESC !