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6-4 Raster Graphics EN
PCL 5 Color Raster Graphics
The PCL 5 color raster graphics command set provides support for
specifying an image's:
Dimensions
Resolution
Pixel format, also known as the pixel encoding mode
Compression mode
Large image size is one of the major concerns with raster images. For
example, the size of an 8 x 10 inch monochrome image at 150 dpi is
225 Kbytes. The size of a 24-bit color image with the same size and
resolution is 5.4 Mbytes. If the color image is 600 dpi, 24-bit color, its
size is 86 Mbytes. Therefore, the PCL 5 language supports several
compressions modes that exploit redundancy between adjacent
pixels or adjacent rows. Furthermore, several shortcuts are available
to avoid sending data that is really large blocks of zeros.
Figure 6-1 Raster Area
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