7197 Series II Owner’s Guide Chapter 6: Commands
August 2011
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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.
Example:
MSComm1.Output = Chr$(&H1D) & Chr$(&H21) & Chr$(n)
Exceptions:
If n is out of the defined range, this command is ignored.
This is only available in 7194 Native Mode and 7197 Series II Native Mode.
Select or Cancel White/Black Reverse Print Mode
ASCII: GS B n
Hexadecimal: 1D 42 n
Decimal:
29 66 n
Value of n:
0 = Off
Range of n: 1 = On(Only the lowest bit is used.)
Default of n:
0 – 255
0 (Off)
Turns on White/Black reverse printing mode. This command is only available in 7194
Native Mode and 7197 Series II Native Mode. In White/Black reverse printing mode, print
dots and non-print dots are reversed, which means that white characters are formed by
printing a black background. When the White/Black reverse printing mode is selected it is
also applied to character spacing which is set by Right-Side Character Spacing (1B 20).
This command can be used with built-in characters and user-defined characters, but does
not affect the space between lines.
White/Black Reverse Print Mode does not affect bit image, downloaded bit image, bar
code, HRI characters, and spacing skipped by Horizontal Tab (09), Set Absolute Starting
Position (1B 24…), and Set Relative Print Position (1B 5C).
White/Black reverse mode has a higher priority than Underline Mode. When Underline
Mode is on and White/Black Reverse Print Mode is selected, Underline Mode is disabled,
but not canceled.
Example:
MSComm1.Output = Chr$(&H1D) & Chr$(&H42) & Chr$(n)
Exceptions:
This is only available in 7194 Native Mode and 7197 Series II Native Mode.
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