LK-T21 Technical Manual
GS :
[Name] Start/end macro definition
[Format] ASCII GS :
Hex 1D 3A
Decimal 29 58
[Description] Starts or ends macro definition.
[Details] ·Macro definition starts when this command is received during normal
operation.
·Macro definition ends when this command is received during macro
definition.
·When GS ^ is received during macro definition, the printer ends macro
definition and clears the definition.
·Macro is not defined when the power is turned on.
·The defined contents of the macro are not cleared by ESC @. Therefore,
ESC @ can be included in the contents of the macro definition.
·If the printer receives GS : again immediately after previously receiving GS : the printer
remains in the macro undefined state.
·The contents of the macro can be defined up to 2048 bytes. If the macro definition exceed
2048 bytes, excess data is not stored.
[Reference] GS ^
GS B n
[Name] Turn white/black reverse printing mode
[Format] ASCII GS B n
Hex 1D 42 n
Decimal 29 66 n
[Range] 0 ≤ n ≤ 255
[Description] Turns on or off white/black reverse printing mode.
·When the LSB of n is 0, white/black reverse printing mode is turned off.
·When the LSB of n is 1, white/black reverse printing mode is turned on.
[Details] ·Only the LSB of n is effective.
·This command is available for built-in characters and user-defined
characters.
·When white/black reverse printing mode is on, it also applied to
character spacing set by ESC SP.
·This command does not affect bit image, user-defined bit image, bar
code, HRI characters, and spacing skipped by HT, ESC $, and ESC＼.
·This command does not affect the space between lines.
·White/black reverse mode has a higher priority than underline mode. Even
if underline mode is on, it is disabled (but not canceled) when
white/black reverse mode is selected.
[Default] n = 0
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