EFI Fiery ES IC-418, Конфигурация и настройка, Страница: 176 / 243

Black text and graphics
The
Black text and graphics
option affects black text and vector graphics. When you set this option to
Pure Black On
,
the black generated by applications (RGB=0, 0, 0 or CMYK=0%, 0%, 0%, 100%) is printed using black only.
With
Black text and graphics
set to
Pure Black On
, black text and line art are not misregistered, since only one
colorant is used. This setting also eliminates blasting, which is an undesirable effect that occurs when excess
amounts of ink or toner, combined with certain types of paper stock, cause objects to spread beyond their defined
boundaries.
For some jobs, we recommend setting
Black text and graphics
to
Normal
. For example, if a job includes gradient fills
that use black, the
Normal
setting gives the best result.
If you set
Black overprint (for pure black)
to
Text
or
Text/Graphics
,
Black text and graphics
must be set to
Pure Black
On
.
Note:
Use
Black text and graphics
only when printing composites, not separations.
The following table describes the behavior of
Black text and graphics
with black defined in different color spaces.
Color
Black text and graphics
=
Normal Black text and graphics
=
Pure Black On
or
Rich Black On
RGB=0,0,0 (all other RGB
values are unaffected by
Black
text and graphics
)
Printed according to the definition for
RGB=0,0,0 in the output profile. This may
be a rich black (one that uses multiple
colorants) if the output profile specifies a
rich black, or K-only if the output profile
specifies K-only for RGB=0,0,0. The output
is affected by calibration.
Printed as 100% K (
Pure Black On
) or 100%
K plus 50% Cyan (
Rich Black On
) using
black and cyan.
CMYK=0%,0%,0%,100% (all
other CMYK values are
unaffected by
Black text and
graphics
)
Printed as K-only or as a rich black using all
colorants, depending on the
CMYK source
and
CMYK rendering intent
settings.
If
CMYK rendering intent
is set to
Pure
Primaries
, or if
CMYK source
is set to
Bypass
Conversion
, CMYK=0%,0%,0%,100% prints
as 100% K and the amount of black is
limited by the
CMYK source
profile and
calibration.
If
CMYK rendering intent
is set to
Relative
Colorimetric
, CMYK=0%,0%,0%,100% is
printed as a rich black using all colorants
according to the output profile. The output
is affected by calibration.
Note:
Setting
CMYK source
to
ColorWise
OFF
disables the CMYK Source profile and
calibration. In this case, the black is not
limited by calibration.
Printed as 100% K (
Pure Black On
) or 100%
K plus 50% Cyan (
Rich Black On
) using
black and cyan, regardless of the
CMYK
source
and
CMYK rendering intent
settings.
Color Printing
Color print options
12