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Attributes of a transaction setup
PDF attributes
[Black Point Compensation
algorithm]
[PDF enable cache]
[PDF overprint simulation]
Colour management attributes
[113] Colour management settings
Colour management attrib‐
utes
[Default CMYK input pro-
file], [Default monochrome
CMYK input profile], [De-
fault RGB input profile],
[Default monochrome RGB
input profile]
[Rendering intent]
[Print full colour or black &
white]
[Ignore toner transfer curve
from data stream]
[Ignore embedded output
profile]
[Black preservation]
104
Chapter 6 - Transaction printing
Description
Black Point Compensation (BPC) is used in combination with the
relative colorimetric rendering intent. Black Point Compensation
(BPC) scales input colours relative to the output black in order to
preserve details in dark areas. When the output black is rather
light, [Enhanced BPC] is preferred over [Adobe BPC] because it
has a better performance.
This function realises that the PDF cache automatically can identi-
fy and store objects that are used more than once in the job.
Use this function to make opaque objects look transparent. Under-
lying objects become visible. If this function is disabled, the col-
ours on top will knock out the underlying colours.
Description
Select a default input profile for the four types of input profiles.
Edit an input profile on page
(
Select the rendering intent that defines the colour conversion
strategy for the out-of-gamut colours.
Use this function to define how jobs are printed: in black & white
or in colour.
The printer can use or ignore toner transfer curves that are in the
data stream.
Use this function to ignore the RGB or CMYK embedded output
profiles.
Pure black preservation means that the colour black is composed
of 100% K ink. When pure black preservation is not possible or dis-
abled, the colour black is composed of a mixture of C, M, Y and K
inks. This function only applies to text and lines. It does not apply
to RGB images.
213)
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