Xerox C8 - DocuPrint Color Inkjet Printer, Руководство пользователя, Страница: 57 / 458

Setting PPD File Parameters 43
Image Noise
No
(default) applies no image noise to your job.
Noise 2-10
apply image noise. The higher the level, the smoother the
vignettes appear.
Color Mode
Grayscale
prints all pages using black (K) toner only.
Color
prints all pages using all CMYK toners.
If you selected
Color
, select the
Print grays in black toner
option in the
Gray RGB
list to print RGB gray images using black toner only. If you
want grayscale CMYK elements to be printed using black toner only, you
need to select
Perceptual
as the rendering intent.
RGB Workflow This option changes gamma values, thus producing more color depth
for RGB images. To use the embedded CSA, select
Use Source CSA
. To
replace use a Spire or Adobe CSA, select
Use Spire RGB 1.8, Use Spire
RGB2.1
,
Use Spire RGB 2.4
,
Use sRGB
, or
Use Adobe RGB
.
Gray RGB
Select
Print grays using CMYK
to print grayscale CMYK elements using
black toner only.
Select
Print grays in black toner
to print RGB gray images using black
toner only.
Rendering Intent
for RGB Rendering intent defines how colors are compressed from CIELAB
values to printer color space.
Relative Colorimetric
provides an accurate general-purpose gamut
mapping for all applications. The lowest density is mapped to white.
Absolute Colorimetric
preserves the substrate tint.
Saturated (presentation)
produces saturated colors that are suitable for
office environment applications —for example, text documents and
presentations.
Perceptual (photographic)
yields the most effective results on
continuous tone and images.
Saturated (presentation)
and
Perceptual (photographic)
are the most
effective rendering intent methods for RGB images.
Table 4: PPD parameters
PPD Parameter Printing Options