Xerox CX240 用户手册

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Setting Parameters in the Job Parameters Window
185
Color Mode
¾
Select one of the following options:
ˆ
Color:
 to print the job in color using CMYK.
ˆ
Grayscale:
 to print the job as black and white using Black (K) toner 
only. When a color job is printed using the 
Grayscale 
option, the 
cyan (C), magenta (M), and yellow (Y) separations are also printed 
in black (K) toner, giving a dense appearance similar to the CMYK 
grayscale image.
RGB Workflow
1.
In the 
RGB Workflow
 list, select the required RGB source profile: 
To use the embedded color space array (CSA) or source CSA, 
select 
Use SourceCSA
.
To use a Spire or Adobe CSA, select a CSA from the list. The 
default option is 
AdobeRGB1998
.
2.
In the 
Rendering intent 
list, select the required option.
3.
To print RGB gray text and graphics with black toner only, select the 
Print grays using black toner
 check box.
CMYK Workflow
The 
CMYK workflow
 option is used to emulate various standards used in 
lithographic printing. These standards represent specific combinations of 
paper and ink, as well as popular proofing systems. The CMYK workflow 
is also used to emulate other digital printers or other printing devices such 
as offset presses. An example of a CMYK workflow job would be printing 
a test sample for a survey before moving to an offset press to print millions 
Note:  If the job contains grayscale images that were created in RGB 
applications, such as Microsoft
®
 PowerPoint
®
, specify as monochrome or 
submit to the system with Grayscale selected in the PPD file. This selection 
ensures that grayscale images are counted as black and white instead of 
color in both the Spire CX250 color server and the Xerox DocuColor 240/250 
printer-copier billing meters.
Note:  The Print grays using black toner check box not only affects 
R=G=B values but might also cause slightly different values 
(R+/-4=G+/-4=B+/-4) to produce gray.