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PCL 5
1-12 XEROX DOCUPRINT NPS GUIDE TO USING PAGE DESCRIPTION LANGUAGES
printers even though the PCL interpreter is emulating a simplex PCL
printer. There are no switches that control how the image is shifted,
because the DocuPrint sequencer does not perform image shifting
on a page-by-page basis, but only on a job-by-job basis.
PCL 5 coding recommendations
When creating PCL 5 jobs, there are some general
recommendations for optimal performance:
• Use PCL Fill Rectangle Area for horizontal and vertical lines
and rectangles.
• Use HPGL for other synthetic graphics (curves, diagonal lines).
• Minimize raster usage (avoid translating fonts or lines into raster
data); on fast (100Mbit) networks, send uncompressed data.
• Maximize use of internal scalable fonts.
• Define logos as fonts rather than raster graphics.
• Rotate rasters to align with printer edge feed, using the Raster
Graphics Presentation Mode, if possible.
• Minimize switching between HPGL and PCL modes.
• Download resources outside of macros.
PCL 5c support
This section provides specific information related to the DocuPrint
NPS implementation of PCL 5c on the 4850, 4890, 92C. For more
information on PCL 5c, see the HP PCL 5 Color Technical Reference
Manual.
The DocuPrint NPS implementation of PCL 5c is tuned for optimal
print quality on the 4850, 4890, 92C highlight color printers.
Note: If the same document is printed with PostScript and with PCL
5c, the highlight color may not match exactly.
When the DocuPrint NPS PCL 5c interpreter is installed on the
highlight color printers, the decomposer can switch between highlight
color and monochrome modes dynamically on a per-job basis. You
can specify monochrome printing (that is, Executive Black mode) by
setting the highlight color attribute to black. The PCL 5e interpreter is
used for monochrome mode.
In general, PCL 5c jobs can be expected to have much larger file
sizes than PCL 5e jobs because of the nature of the PCL 5c driver.
This is not a function of DocuPrint NPS.
The default highlight color rendering algorithm, Automatic, is not
recommended for use with PCL 5c jobs. Presentation and Pictorial
rendering algorithms produce the best appearance. The
ColorToHighlight algorithm is also supported for PCL 5c.
For PCL 5c jobs, the Thicken attribute has no effect.