TH320/TH420
Programmers Guide
45
The select print mode (1B 21 n) command can also select or cancel double-width and double-height
modes. However, the setting of the last received command is effective.
Exceptions
If n is out of the defined range, this command is ignored. This command is only valid for the receipt
station.
Selector cancel white/black reverse print mode
ASCII
GS B n
Hexadecimal
1D 42 n
Decimal
29 66 n
Value of n
0 = Off
1 = On
(When 0 and 1 are the least significant bits, LSB)
Range of n
0- 255
Default
0 (Off)
Turns on white/black reverse print mode. In white/black reverse print mode, print dots and non-print dots
are reversed, which means that white characters are printed mode is on a black background. When the
white/black reverse print mode is selected it is also applied to character spacing which is set by right-side
character spacing (1B 20).
This command can be used with built-in characters and user-defined characters, but does not affect
the space between lines.
White/black reverse print mode does not affect bit image, downloaded bit image, bar code , HRI
characters, and spacing skipped by horizontal tab (09), set absolute starting position (1B 24 …), and
set relative print position (1B 5C).
White/black reverse print mode has a higher priority than underline mode. When underline mode is on and
white/ black reverse print mode is selected, underline mode disabled, but not canceled.
Bar codes, logos, and bit images are not affected by this command.
Exceptions
This command is only valid for the receipt station.
Reverse color text mode
ASCII
GS 0x85 m n
Hexadecimal
1D 85mn
Decimal
29 133mn
Value of m
0 = white 1 = black 2 = paper color
Value of n
0 = white 1 = black 2 = paper color
Default
m = 0 (off)
Set a mode for reverse printing effects on text. The background color is specified by m, while the text
color is specified by n. Setting m = 0 turns off the mode.
If m = n but not zero, the printer produces solid printing in the given color. This tactic can be used to
minimize the firmware busy work.
The value of current color and white/black reserve print mode is super ceded by the value of n
whenever this mode is on (m>0).
Bar codes, logos, and bit images are not affected by this command.
Summary of Contents for TH320
Page 1: ...TH320 TH420 Two Color Thermal Impact Hybrid Printer Programmers Guide ...
Page 75: ...TH320 TH420 Programmers Guide 67 ...
Page 121: ...TH320 TH420 Programmers Guide 113 Character Sets Character code 437 USA Standard Europe ...
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Page 132: ...Programmers Guide TH320 420 124 Codepage 1252 Windows Latin 1 ...
Page 134: ...Programmers Guide TH320 420 126 Codepage 1255 Hebrew ...
Page 142: ...Programmers Guide TH320 420 134 TH420 Additional Features ...
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Page 157: ...TH320 TH420 Programmers Guide Wincor Nixdorf International GmbH D 33094 Paderborn ...