HP DesignJet Z2600 Z5600 PostScript Printer - User guide

PostScript or PDF jobs only
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Default CMYK source prole: you can choose from a selection of CMYK source proles recognized by the
printer. Default: US Coated SWOP v2.
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Rendering intent: you can select the rendering intent.
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Black point compensation: you can turn black point compensation on or o.
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HP Professional PANTONE Emulation: you can turn HP Professional PANTONE Emulation on or o.
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 dierent ways of handling these so-called out-of-gamut colors.
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Saturation (graphics): best used for presentation graphics, charts or images made up of bright, saturated
colors.
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Perceptual (images): best used for photographs or images in which colors blend together. It tries to
preserve the overall color appearance.
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Relative colorimetric (proong): best used when you want to match a particular color. This method is mainly
used for proong. 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.
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Absolute colorimetric (proong): the same as relative colorimetric, but without mapping the white. This
rendering is also used mainly for proong, 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 dierences 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 78).
Printing PANTONE swatch books
You can use the Embedded Web Server or the HP DesignJet Utility to print a swatch book showing emulations of
PANTONE colors as made by your printer, together with a measure of the color dierence (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 to print. You can
select color strips from more than one PANTONE stock. When you have selected all the colors you want, press
the Next button. The next window displays your selection; you can press Print to print that selection, or Back to
change the selection.
78 Chapter 10 Color management ENWW