HP 5961-0509 manual PCL Raster Graphics

PCL Raster Graphics

To minimize I/O transmission time and conserve memory, avoid sending unnecessary raster data to the printer that represents white space. This is accomplished using the raster compression modes and raster reduction techniques available with the raster picture area.

Set resolution prior to the start raster graphics command. Once the start raster command is received, the resolution cannot be set until after a subsequent end raster graphics command.

Set presentation mode prior to the Start Raster Graphics command. Once the start raster command is received, the presentation mode cannot be set until after a subsequent End Raster Graphics Command.

Some applications and I/O drivers insert carriage returns or line feeds into the data stream sent to the printer. This modification of the data stream must be suppressed for correct printer operation.

The most efficient way to draw lines (horizontal and vertical) is using graphics rules (black-fill rectangular areas). The most efficient way to draw diagonal lines is using HP-GL/2 vector graphics.

EN PCL Raster Graphics 24-7