■ Downloaded graphics indicate image data groups defined in the printer’s
internal volatile memory (RAM).
Once the download graphics data have been defined, they are available until GS
( L <Function 83>, <Function 84> or ESC @ is executed. The download graphics data
are lost when the power is turned off or the printer is reset.
■ The functions used to define download graphics data are this function and
Function 83. Even with printer models that support both, it is recommended that
only one of the functions be used for data definition tasks.
• The two functions differ only in that one function (this function) defines data
in raster format, while the other (Function 83) defines data in column format. The
domains and control information are identical.
• In cases where the key code specified by this function coincides with a key
code being used by Function 83, a new data definition is created.
■ Use this function at the beginning of the line when the standard mode is
selected.
■ This function is incompatible with macros, so make sure to avoid including it
when defining macros.
■ In cases where there is insufficient capacity available for storing download
graphics data, this function cannot be used. Use Function 52 to confirm the
available capacity in the download graphics data area.
■ One option is to delete items of download graphics data that were previously
defined to the same key code.
■ The data for byte k of d1 ... dk is processed as a single item of defined
download graphics data. The defined data (d) specifies “1” for bits corresponding
to dots that will be printed and “0” for bits corresponding to dots that will not be
printed.
■ Download graphics data is defined using the dot density set by Function 49.
■ Specify single data groups [c d1 ... dk] when monochrome is selected (b = 1) as
the color.
■ Specify b number of data groups [c d1 ... dk] when multiple colors are selected
(b ≠ 1). It is also important to specify different colors in units of data groups when
specifying color (c).
■ Download graphics data is printed using Function 85.
■ Note that it is not possible to create definitions for both download graphics
data (this command) and download bit image data (GS ✻). download bit image
data definitions are deleted when this command is used.
■ For some models, downloaded graphics (this command) and user-defined
characters (ESC &) cannot be defined simultaneously.
• User-defined characters defined are deleted by using this command.
• Downloaded graphics data are deleted by ESC &.
■ The relationship between download graphics data (column format) and print
results is shown in the table below.
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