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5-19
4. Character decoration commands
ESC ! n Decorated Characters Collectively Specify
Code
1B
16
+ 21
16
+ n
Domain of
function
0 ≤ n ≤ 255
Function Collectively specifies the printing modes.
Function
Bit Description
0 1
0 Font 24 dot type 16 dot type
1 Undefined − −
2 Undefined − −
3 Bold character clear specify
4 Double–height character clear specify
5 Double–width character clear specify
6 Undefined − −
7 Underline clear specify
Details
• When specifing both Bit 4 and Bit 5 described in the table above, the
double-height and double-width size characters are printed.
• The dot pitch of underline is 2 dot pitch. However, if the several underlines with
the different thicknesses exist in one line, the thickness of those underlines will be
brought into line with the thickest underline.
• Each setting is not related to the previous settings.
• The settings of the characters except for the bold characters and the font are
valid only for the standard size characters.
• In default, n = 0.