NV bit image is a bit image defined in non-volatilememory by FS q and printed
by FS p.
This command is not effective when the specified NV bit image has not been
defined.
In standardmode, this command is effective onlywhen there is no data in the
print buffer.
This command is not affected by printmodes (emphasized, double-strike,
underline, character size,white/black reverse printing, or 90° rotated
characters, etc.), except upside-down printingmode.
If the downloaded bit-image to be printed exceeds one line, the excess data is
not printed.
If the printing area width set by GS L and GS W for the NV bit image is less
than one vertical line, the following processing is performed only on the line in
question. However, in NV bit image mode, one vertical line means 1 dot in
normal mode (m 0, 48) and in double-heightmode (m=2, 50), and it means 2
dots in double-widthmode (m=1, 49) and in quadruplemode (m=3, 51).
① The printing area width is extended to the right in NV bit image mode up
to one line vertically. In this case, printing does not exceed the printable area.
② If the printing area width cannot be extended by one line vertically, the
left margin is reduced to accommodate one line vertically.
This command feeds dots (for the height n of the NV bit image) in norma and
double-widthmodes, and (for the height n × 2 of the NV bit image) in
double-height and quadruplemodes, regardless of the line spacing specified by
ESC 2 or ESC 3.
After printing the bit image, this command sets the print position to the
beginning of the line and processes the data that follows as normal data.
When NV bit image prints normally, the printer will return data 0x06; While
printing fails, the printer will return data 0x15.
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