Brother QL-720NW - Manual (Page 41)

ESC/P Command Reference
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5. Control Command Details
ESC ! Global formatting
ASCII: ESC ! n
Decimal: 27 33 n
Hexadecimal: 1B 21 n
Parameters
0≤n≤255
Description
 Specifies a combination of print modes.
 Specifies modes depending on the bit value of n.
 When the ESC ! code is used, a combination of multiple print modes can be specified at one time.
 The priority order is from Bit 5 to Bit 2.
 Bit 0 is available only if Bit 1 is 0.
 Selected character styles are canceled, and the characters return to the normal style.
 Canceling double-width characters also cancels compressed (half-width) characters.
Bit 7 6 5 4 3 2 1 0
1 Underline Italics
Double
width
Double
height
Bold Compressed Proportional 12 cpi
0 Cancel Cancel Cancel Cancel Cancel Cancel Cancel 10 cpi
Example
 To apply underlining and specify double-width characters at the same time:
Code: ABC ESC ! A0h ABC ESC ! 00h ABC FF
Print result: ABCABCABC