HP Designjet Z3200ps 44 in User Manual

Use ink economically
Here are some recommendations for making economical use of ink.
●Clean the printheads only when needed, and clean only those printheads that need cleaning.
Cleaning the printheads can be useful, but it uses ink.
●Leave the printer permanently turned on so that it can maintain the printheads in good condition
automatically. This regular printhead maintenance uses a small amount of ink. However, if it is not
done, the printer may need to use much more ink later to restore the health of...

6 Color management
●What is color?
●
The problem: color in the computer world
●
The solution: color management
●
Color and your printer
●
A summary of the color management process
●
Color calibration
●
Color profiling
●
Color management options
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Perform black point compensation
●
Set the rendering intent
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Color emulation
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HP Professional PANTONE Emulation
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Color adjustment options
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Color management scenarios
62 Chapter 6   Color management ENWW
Color management
 

What is color?
We see the world around us as steeped in color, where color is in the first instance simply an aspect of
how we experience our environment. Color is therefore subjective. Upon further inspection we find that
our color experiences are closely related to brain activity that is triggered by signals sent to it by our
eyes. These signals undergo a complex and highly interlinked sequence of processing stages that make
the relationship between what our eyes emit and what we experience anything...

To control the output of color imaging devices, the following color spaces are normally used:
●RGB (Red, Green and Blue) is the color space typically used for additive devices. A color is
represented as a combination of specific quantities of red, green and blue colorants and all such
combinations address the range of colors (color gamut) of the chosen device.
NOTE:Subtractive devices can also be controlled using RGB data and, especially when you do
not require control over how you want to use your...

1.All colors
2.Computer monitor gamut
3.CMYK press gamut
Finally, there are some color spaces that are not device-dependent, but instead represent how a viewer
sees colors, such as CIE Lab or CIECAM02 defined by the CIE (Commission Internationale de
l’Éclairage). The advantage of these spaces is that, unlike CMYK or RGB, if two objects have the same
CIE Lab values then they will look the same when viewed under the same conditions. Values in these
spaces can be obtained from measuring the light emitted or...

●CMS: CMS stands for Color Management System. It is the application that converts the color
information stored in the input image, which has the color space defined by a source profile, into
an output image that has the color space specified by a destination profile. There are many different
CMSs on the market: there are CMSs in applications, in operating systems and in printing software
provided by printer manufacturers (in our case the HP Designjet Z3200ps internal RIP).
●Source profile: a description...

generate an RGB ICC profile, describing its color behavior for the paper that was loaded at
the time of measuring.
●CMYK mode:
◦SWOP: abbreviation of “Specifications for Web Offset Publications”, a set of press standards
defined for a typical US press and for different types of paper
◦ISO 12647-2: a set of press standards defined by the International Standards Organization
for different types of paper (Coated, Uncoated, …)
◦Other regional standards: Euroscale, JMPA, Japan Color
◦Specific CMYK device...

A summary of the color management process
To get the accurate and consistent colors that you want, you should follow these steps for each paper
type that you use.
1.If your paper type is not already known to the printer, add it to the printers list of known papers.
See 
To create your own paper preset on page 39. Typical users may add a few custom paper types
every year.
2.Color-calibrate the paper type, for consistent colors. Calibration should be repeated every now and
then, when recommended by a...

Color calibration
Color calibration enables your printer to produce consistent colors with the particular printheads, inks
and paper type that you are using, and under your particular environmental conditions. After color
calibration, you can expect to get identical prints from any two different printers situated in different
geographical locations.
Calibration should be done in any of the following circumstances:
●Whenever a printhead is replaced
●Whenever a new paper type is introduced that has not yet...

The calibration process is fully automatic and can be performed unattended after you have loaded paper
of the type you wish to calibrate—which should be A4, Letter or any larger size.
The process takes about 8–10 minutes and consists of the following steps.
1.A calibration test chart is printed, which contains patches of each ink used in your printer.
2.The chart is allowed to dry for a period of time that depends on the paper type, so that the colors
have time to stabilize.
3.The chart is scanned and...