Canon imagerunner c3380 Manual De Usuario

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PS Settings
3-71
3
Pr
inter Settings Menu
RGB Pure Black Process
On
*
, Off
This setting enables you to specify how black and gray data with the equivalent 
ratio of R to G to B should be processed when device dependent RGB data is 
converted into device dependent CMYK data using the 'RGB Source Profile' of 
the machine.
If [On] is selected, black and gray data with the equivalent ratio of R to G to B is 
printed using the black (K) toner only, regardless of the selected 'Output Profile' 
setting.
If [Off] is selected, black and gray data with the equivalent ratio of R to G to B is 
printed using CMYK toners based on the selected 'Output Profile' setting.
IMPORTANT
 
If you can see gradations or jagged lines in the printouts of black or gray data, 
select [Off] in RGB Pure Black Process and select [Normal] for 'Output Profile'.
NOTE
 
In combination with certain settings, black and gray data with the equivalent ratio of 
R to G to B may be printed using the black (K) toner only, even if [Off] is selected. 
The following are examples.
- When [On] is selected for 'Pure Black Text'
- When [None] is selected for 'RGB Source Profile'
- When [TR Normal] or [TR Photo] is selected for 'Output Profile'
- When 'Prioritize Printing of Lines and Text' in the printer driver is selected
If [None] is selected for 'RGB Source Profile', the RGB Pure Black Process setting 
is not applied.
CMYK Pure Black Process
On
*
, Off
This setting enables you to specify how monochrome data (C=M=Y=0) should be 
printed when the device dependent CMYK data is processed using the 'CMYK 
Simulation Profile' of the machine.
If [On] is selected, monochrome data (C=M=Y=0) is printed using the black (K) 
toner only, regardless of the selected 'Output Profile' setting.
If [Off] is selected, monochrome data (C=M=Y=0) is printed using CMYK toners 
based on the selected 'Output Profile' setting.
NOTE
 
In combination with certain settings, monochrome data (C=M=Y=0) may be printed 
using the black (K) toner only, even if [Off] is selected. The following are examples.