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used. The first plane sent represents the least significant
bit in the pixel.
Since ?*b#V does not advance the cursor to the beginning
of the next raster row, it cannot be used for the last plane or
for single-plane rows. Only ?*b#W can advance the cursor
to the next row.
The amount of data sent varies from plane to plane and is
independent of raster width. Planes shorter than the raster
width are zero-filled. Empty planes can be sent using
?*b0V.
Note For monochrome printers, zero indicates a white pixel. For
color printers, the color indicated by zero depends on the
current palette.
Transfer Raster
Data By Row/Block
Command
The Transfer Raster Data command is used to transfer a
row of raster data to the printer. This command is used for
sending all raster graphics data to monochrome printers. It
is also used for color printers when encoding the raster data
by pixel rather than by plane. When encoding color raster
data by plane, this command is used for single-plane rows,
or for the last plane in a multi-plane row, since this
command advances the cursor position to the beginning
of the next raster row.
? * b # W [raster data]
Default = N/A
Range = 0 to 32767
The value field (#) identifies the number of bytes in the
raster row. These bytes are interpreted as one row of raster
graphics data printed at the current Y position at the left
raster graphics margin. Upon completion of this command,
6-36 Raster Graphics6-36 Raster Graphics