Xerox DocuPrint 180, Solution Manual

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IPS APPLICATION MIGRATION
4-12 DOCUPRINT IPS SOLUTIONS GUIDE
Note: Note that support for printing these images was added to the
PSF/MVS environment by IBM’s PTF UW26975 (APAR
OW18369).
PSF may convert the image to IOCA at the IPDS level to cause
resolution correction/scaling based on these factors:
•
If the image resolution and printer resolution are not equal, PSF
creates an IOCA image at the IPDS level that uses the scale-to-
fit mapping to print the image. This method preserves the
intended aspect ratio and dimension.
•
If the image resolution is not a factor of the PGD units, PSF
creates an IOCA image at the IPDS level that uses the position-
and-trim mapping. This method accommodates for any
rounding error.
For more information on adding color to page segments and IM
images, refer to Chapter 5 “Incorporating Xerox value-added
features”.
Pixel doubling
If you print applications that include images consisting of single-pel
lines, the DocuPrint 4050 IPS or DocuPrint 4090 IPS printers
automatically convert those single-pel lines to double-pel lines. This
process, known as pixel doubling, accommodates the imaging
technology of these printers and ensures optimum output quality of
the document.
Mixed plex jobs
DocuPrint IPS 7.1 supports Mixed Plex jobs. That is, the IPS system
controller can receive jobs from a host computer that contain
simplex, duplex, or a mixture of both simplex and duplex pages within
a job.
Mixed Plex enables the IPS system to switch plex modes (simplex to
duplex and vice versa) within a job. In the AFP environment changing
plex modes in the middle of a document is allowed and common.
Jobs that contain both simplex and duplex pages shall be printed
without an IOT cycle-down. However, when switching from duplex to
simplex within a job the printer may dead cycle to clear the paper
path of all duplex sheets before feeding the first simplex sheet.
Users can avoid dead cycles when switching from duplex to simplex
by performing “simulated simplex.” This is achieved by setting a
Maximum Simplex value with the IPS GUI to maximize throughput.
Maximizing throughput
If you print applications that mix simplex and duplex pages (single
and double-sided pages), you maximize throughput and minimize
your per copy charges by configuring your system using the IPS
graphical user interface.