Image Quality (Iq) - Xerox 6100BD - Phaser Color Laser Printer System Manual

Hints and Tips
9- 6
Server can compose 2 variable data objects of 2 inches by 2
inches and 300 dots/inch resolution about 10-20 times faster than
it could if the same objects were 600 dpi and 8.5x11 inches.

Image Quality (IQ)

Generally the image quality of a base printing system is above
average, and the Image Quality (IQ) enhancements filters
provided within the Xerox FreeFlow Print Server are unnecessary.
If you wish to improve output IQ, the Print Server provides
separate controls for enabling Anti Aliasing, Trapping, and
Intelligent Black Overprint.
Disabling all three of these IQ filters improves performance. If you
are printing only a small number of copies, the expected increase
in RIP time is visible as a significant fraction of the total job
processing time.
When printing documents with a large a number of copies, then
the majority of the processing time is devoted to the actual printing
and the RIP performance decrease is less visible (a smaller
fraction of the total job time). You should examine the Xerox
FreeFlow Print Server printed output with the IQ enhancing filters
enabled and disabled and decide whether the IQ improvement is
worth the performance drop for this particular job.
On the DocuColor 2045/2060/6060/5252/7000/8000/5000 there
are certain scenarios in which the printer will cycle down and do
an Image Quality (IQ) adjustment. The percent area coverage of
the page (that is, amount of image/text written on the page) also
effects the number of IQ adjustments that the printer makes. A
standard letter size page (8.5x11 inches) is about 21.6x27.9 cm or
about 603.5 square cm.
If the text and images written to a page cover more than about 250
square cm (about 40% of the page), then the print engine
automatically generates IQ adjustments.
If you find that a particular document seems to take a long time to
print because of IQ adjustments, improve performance by
simplifying the page. For example, the text and images on the
page might be downsized to cover less than 40% of the viewable
area of the paper and the performance may improve because the
printer does fewer IQ adjustments.
The DocuColor 2045/2060/6060/5252/7000/8000/5000 print
engine also performs IQ adjustments if a difficult job is being
processed and RIP falls behind the print output. If this occurs, the
print engine will cycle down for a few seconds while the RIP
catches up and then it performs an IQ adjustment which takes
anywhere from 5-95 seconds. During the IQ adjustment, the
printer does not print anything. However, the RIP continues and
be slightly ahead. As soon as the printer finishes the IQ
adjustment it prints all of the RIPped pages and catches up with
the printer.
System Guide