Setting Page Order; Product Features That Affect Print Quality; Proprietary Postscript Extensions - Xerox DocuPrint 180 NPS Troubleshooting Manual

ADJUSTING PRINT QUALITY AND SPEED

Setting page order

Product features that affect print quality

Proprietary PostScript extensions

7-10
DocuPrint delivers documents with the pages face down in the order
presented in the Page Description Language. The order can be
changed by setting the PageOrder attribute.
If the Staple attribute is set, DocuPrint must deliver the document
face up. In order to deliver the stapled document in the correct order,
it must image the document in reverse page order. In order to image
a document in reverse page order, the entire document must be
processed before printing starts.
For the best print speed, ensure that each PostScript program has
the pages in the correct order for the finishing requirement for the
document:
•
No finishing is required: PDL should be in ascending page
order. PageOrder attribute should be set to ascend.
•
Stapling is required: PDL should be in descending page order.
•
Duplex printing is required: there should be an even number of
pages. Page order should be set to descend.
Note: If you are using a third-party finishing device connected
to DocuPrint by a bypass transport, the page delivery order is
determined by the requirements of the third-party device (face
up or face down). To maximize performance, place the pages in
the PostScript master in the order in which they are required by
the finishing device.
You can improve the appearance of your documents by being aware
of potential problems created through the use of proprietary
PostScript extensions and device-dependent operators.
When PostScript masters that use proprietary PostScript extensions
to enable printer-specific features are printed on different PostScript
printers, there may be appearance inconsistencies. For example,
some versions of the Apple Macintosh PostScript driver download
encrypted proprietary image "smoothing" operators to Apple
LaserWriters. The downloaded PostScript code uses the product
operator to determine if it is being used on a LaserWriter. If not, the
proprietary code is bypassed by doing a flushfile. This allows the
PostScript master to print on non–LaserWriter products. As a result,
PostScript masters generated on a Macintosh with Apple proprietary
features may produce output that varies between LaserWriter and
non–LaserWriter PostScript printers.
XEROX DOCUPRINT 96/4635/180 NPS TROUBLESHOOTING GUIDE