If you leave an option set to Default, the setting saved in the job will be used. If the job contains no setting,
the front-panel setting in the printer will be used.
All jobs
●
Color/Grayscale: you can choose to print in color or in shades of gray.
●
Default RGB source profile: you can choose from a selection of RGB source profiles recognized by the
printer.
●
Printer emulation: you can choose to emulate a different HP Designjet printer. Default: Off (no printer
emulation).
PostScript or PDF jobs only
●
Default CMYK source profile: you can choose from a selection of CMYK source profiles recognized by
the printer. Default: US Coated SWOP v2.
●
Rendering intent: you can select the rendering intent.
●
Black point compensation: you can turn black point compensation on or off.
●
HP Professional PANTONE Emulation: you can turn HP Professional PANTONE Emulation on or off.
Rendering intent
Rendering intent is one of the settings used when doing a color transformation. As you probably know, some
of the colors you want to print may not be reproducible by the printer. The rendering intent allows you to
select one of four different ways of handling these so-called out-of-gamut colors.
●
Saturation (graphics): best used for presentation graphics, charts or images made up of bright,
saturated colors.
●
Perceptual (images): best used for photographs or images in which colors blend together. It tries to
preserve the overall color appearance.
●
Relative colorimetric (proofing): best used when you want to match a particular color. This method is
mainly used for proofing. It guarantees that, if a color can be printed accurately, it will be printed
accurately. The other methods will probably provide a more pleasing range of colors but do not
guarantee that any particular color will be printed accurately. It maps the white of the input space to the
white of the paper on which you are printing.
●
Absolute colorimetric (proofing): the same as relative colorimetric, but without mapping the white.
This rendering is also used mainly for proofing, where the goal is to simulate the output of one printer
(including its white point).
Perform black point compensation
The black point compensation option controls whether to adjust for differences in black points when
converting colors between color spaces. When this option is selected, the full dynamic range of the source
space is mapped into the full dynamic range of the destination space. It can be very useful in preserving
shadows when the black point of the source space is darker than that of the destination space. This option is
allowed only when the Relative colorimetric rendering intent is selected (see
Rendering intent on page 80).
Printing PANTONE swatch books
You can use the Embedded Web Server or the HP Utility to print a swatch book showing emulations of
PANTONE colors as made by your printer, together with a measure of the color difference (ΔE) between each
emulation and the original PANTONE spot color.
To print a swatch book, select the Embedded Web Server's Main tab, then HP Professional PANTONE
Emulation. Select the PANTONE stock to emulate, and one or more strips of PANTONE colors that you want
80 Chapter 10 Color management ENWW
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