Xerox CX PRINT SERVER 560 Bedienungsanleitung PDF herunterladen (Seite 110)

Parameter Option Description

PostScript

overprint

Uses the overprint information that exists in the PostScript

file. This option also determines whether the DTP

application's PostScript overprint settings are retained in

the RIP.

Screening Screening Converts images, graphics and text into information that

can be printed (halftone dots). The human eye “smoothes

out” this information, which seems visually consistent with

the original picture. Thus, the more lines per inch, the more

natural the image appears. Screening is achieved by

printing dots in numerous shapes or lines in an evenly

spaced pattern. The distance between the screen dots or

lines determines the quality of the image. Printers can work

with constant amounts of toner and still produce a wide

range of colors when you use screening. The darker the

color, the larger the dot.

To print an image on a digital printer or press, the color

server needs to digitally approximate the grayscale values

with different distributions of pixels. This process is

commonly referred to as halftoning. Digital halftoning

begins by sampling the original image at the same number

of dots per inch as the printer and constructing digital

halftone cells.

100 Chapter 11—Job parameters

1 2 ... 105 106 107 108 109 110 111 112 113 114 115 ... 165 166

Keine Kommentare

Xerox CX PRINT SERVER 560 Bedienungsanleitung Seite 110