ESC/POS Command Manual
15
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 Kanji printing.
[Default]
n
= 0
[Reference]
ESC !
ESC 2
[Name]
Select default line spacing
[Format]
ASCII
ESC
2
Hex
1B
32
Decimal
27
50
[Description]
Selects approximately 4.23 mm {1/6”} spacing.
[Details]
The line spacing can be set independently in standard mode and in page mode.
[Reference]
ESC 3
ESC 3
n
[Name]
Set line spacing
[Format]
ASCII
ESC
3
n
Hex
1B
33
n
Decimal
27
51
n
[Range]
0≤
n
≤255
[Description]
Sets the line spacing to [
n
x (vertical or horizontal motion unit)] inches.
