rendering intent in the CYMK setup, select “CMYK” as
the output color space, and un-select the “Postscript
Color Management” check box. In the printer driver,
make sure that Automatic Black Replacement is
disabled <insert reference>, and that no CMYK
emulations are being used <insert reference>. If all of
these conditions are met, the results of using a
provided ICC profile externally or internally will be
very similar.

Creating ICC Profiles

If you want to create your own ICC profiles for use with
the HP Designjet 5000PS (using any of the
commercially available profiling software packages),
the most important thing is to make sure that you use
exactly

the same configuration of application(s) and driver to
print and measure the calibration target(s) as you will
use later on when applying the profile. HP recommends
using Native mode without Automatic Black
Replacement, making sure that the application is
sending device CMYK colors without any further

conversions being applied. Black generation
is one of the most important aspects of
printer profile generation, but differs
considerable from one profiling tool to
another. If possible, HP recommends

using the following black generation parameters for the
HP Designjet 5000PS: K ink start 35%; maximum K ink
100%; GCR type curve; total area coverage 280%.
Good results can also be obtained with other settings,
depending on the profiling software used. Six ink
printers with light Cyan and light

Magenta colorants in general require the start of K ink
to be delayed compared to traditional four color
printers, in order to avoid the grainy appearance
caused by black dots in highlights and midtones.
Automatic Black Replacement will do this for colors
defined as device CMYK, but should not be used in
conjunction with a profile that is itself already defining K
ink start and other black generation parameters. When
using the internal profiles with ABR enabled, the
internal PS RIP will not apply ABR to colors generated
by the profile (defined by the application as RGB or
CIELab), but will apply ABR to colors defined by the
application as device CMYK. For externally applied
profiles the internal RIP cannot make this distinction,
hence ABR should be disabled in this case.

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