Graphics Commands
4.2.28 LOAD PCX RUN LENGTH ENCODED GRAPHIC DATA (1B,67,58)
When the printer has received this command lead-in, the printer
will expect to receive two bytes of graphic byte count (most
significant byte first this count is not used by the 9000 series
printers and is for back compatibility will the 900 series(a value
of 0 may be used), followed by the graphic data in PCX run length
encoded format including PCX header. Be sure the graphic line width
is less or equal to the number of dots across the print head, if
not the image will be truncated. The graphic image width may be
less
then
the
printhead
width
and
will
default
to
left
justification, unless the X coordinate has been set to another
value. The graphics image will fall on a byte boundary (number of
dots divisible by 8). When the X coordinate is set to other then
zero the graphic origin will be set to this point. If the graphic
image will fit but the X coordinate is incorrect the image will be
right justified (modulo 8). The PCX run length decode algorithm is
as follows:
IF(the 2 high order bits are set then)
COUNT = COUNT & $C0
REPEAT next byte for COUNT times
ELSE
BYTE = DATA
4.2.29 LOAD RASTER GRAPHIC DATA (1B,67,4C)
When the printer has received the above lead-in command, the
printer will expect to receive two bytes of graphic byte count
(most significant byte first, each byte is a hexadecimal character)
followed by the graphic data. If a timeout condition should occur
(an inter-character time greater then .5 seconds), the command will
be aborted; otherwise the data will be placed into the dot buffer.
When building the image, be sure the image width is equal to the
head width in bytes, or unpredictable results will occur. The
graphic image should not be longer then the maximum number of dot
lines.
4.2.30 PRINT PCX GRAPHICS (1B,67,43)
When the printer has received the above command, the printer
will expect to receive two bytes of graphic file size this count is
not used in series controller and may be set to zero, followed by
the graphic data in PCX run length encoded format. As a complete
line is received, that line will be printed. At low baud rates
there will be a slight degradation in print quality due to the data
vs. print rate. This allows the dots to cool between print lines.
For higher quality printing use the buffered graphics mode.
Содержание PX922E
Страница 1: ...Model PX922E THERMAL PANEL PRINTER PRODUCT MANUAL with ETHERNET Revised February 20 2018...
Страница 10: ...Figure 2 1...
Страница 13: ...FIGURE 2 2...
Страница 14: ...Figure 2 3...
