HP DesignJet Z3100ps GP 24 User Manual

							Use a third-party profile
If you have obtained an ICC profile through other means than using the printer’s built-in profiling software,
for instance from an Internet download or a third-party profiling software package, you can install it for
use with your printer and paper.
NOTE:The printer requires RGB output profiles, unless you are using a RIP.
The printer needs to know which paper type the profile corresponds to, so you must first select a paper
type from the list of papers it knows about. When choosing a paper type, try to pick one resembling your
actual paper type as closely as possible. The paper type determines the amount of ink to use and other
basic printing parameters, so making a good choice here is fundamental to achieving good results later
on. If you find that you cannot obtain satisfactory results with the profile and paper type you picked, you
can experiment with choosing different types for new paper names corresponding to the same paper, and
use the one that works best.
If the paper you are using is not listed, or you cannot find a paper type that resembles yours closely
enough, you can define a new type. See 
Add a custom paper type on page 40. The printer then calibrates
itself for use with your paper, after which you can return to installing the ICC profile.
After you have selected the paper type, browse to the file containing the ICC profile to use with your
printer and paper. Normally, ICC profile file names end in the “.icc” (for International Color Consortium)
or “.icm” (for Image Color Matching) extension. The profile will be stored in the correct system folder on
your computer, and in the printer, as usual.
Profile your monitor
You are also recommended to calibrate and profile your monitor (display device), so that the colors you
see on the screen are more closely related to those you see on your prints. There are two ways to do this:
●Use the facilities provided with your operating system. From the HP Color Center, select How To
Calibrate Your Display for further information.
●Use the HP Advanced Profiling Solution, which will give more accurate results.
Color management options
The aim of color management is to reproduce colors as accurately as possible on all devices: so that,
when you print an image, you see very similar colors as when you view the same image on your monitor.
There are two basic approaches to color management for your printer:
●Application-Managed Colors: in this case your application program must convert the colors of
your image to the color space of your printer and paper type, using the ICC profile embedded in
the image and the ICC profile of your printer and paper type.
●Printer-Managed Colors: in this case your application program sends your image to the printer
without any color conversion, and the printer converts the colors to its own color space. The details
of this process depend on the graphics language that you are using.
●PostScript: the PostScript interpreter module inside the printer performs the color conversion
using the profiles stored in the printer (including those generated by the HP Color Center) and
any additional profiles sent with the PostScript job. This kind of color management is done when
you are using the PostScript driver and you specify printer color management or when you send
a PostScript, PDF, TIFF, or JPEG file directly to the printer through the Embedded Web Server.
In either case you have to select the profiles to use as default (in case the job doesnt specify
any) and the rendering intent to apply.
●Non-PostScript (PCL, RTL, HP-GL/2): the color management is done using a set of stored
color tables. ICC profiles are not used. This method is somewhat less versatile than the previous
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							methods, but is a little simpler and faster, and can produce good results with standard HP paper
types. This kind of color management is done when you are using a non-PostScript driver and
you specify printer color management, or when you send a PCL, RTL, or HP-GL/2 file directly
to the printer through the Embedded Web Server.
NOTE:There are only two color spaces that the printer can convert to its own color
space using the stored color tables: Adobe RGB and sRGB if you are using Windows,
Adobe RGB and ColorSync if you are using Mac OS.
ColorSync is the Mac OS built-in Color Management System; so, in fact, when selecting
ColorSync it is the built-in color management part of Mac OS that is performing the color
management, and it is done based on the ICC profiles of specified paper type.
ColorSync is available with the PCL driver only.
You are recommended to consult the Knowledge Center at http://www.hp.com/go/knowledge_center/
djz3100/ to see how to use the color management options of your particular application.
To choose between Application-Managed Colors and Printer-Managed Colors:
●In the Windows driver dialog: select the Color tab.
●In the Mac OS Print dialog (PCL driver): go to the Paper Type/Quality panel and
select Color.
●In the Mac OS Print dialog (PostScript driver): select the Color Options panel.
●In some applications: you can make this choice in the application.
Perform black point compensation
NOTE:This option is available only when printing a PostScript or PDF job.
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 
Set the rendering intent
on page 72).
Black point compensation can be specified in the following ways:
●On the Embedded Web Servers Submit Job page: select Color > Black point
compensation.
●
Using the front panel: select the Setup menu icon 
, then Printing preferences > Color
> Black point compensation.
Set the rendering intent
NOTE:This option is available only when printing a PostScript or PDF job.
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							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).
The rendering intent can be specified in the following ways:
●On the Embedded Web Servers Submit Job page: select Color > Rendering intent.
●
Using the front panel: select the Setup menu icon 
, then Printing preferences > Color
> Select rendering intent.
Color emulation
Your printer can emulate the color behavior of other devices: RGB devices such as monitors, and CMYK
devices such as presses and printers.
You can set color emulation in the following ways:
●In the Windows driver dialog: select the Color tab, and Printer Managed Colors.
●In the Mac OS Print dialog: select the Color Options panel, and Printer Managed
Colors.
●On the Embedded Web Servers Submit Job page: select Color > Color
management > ICC color management.
●
Using the front panel: select the Setup menu icon 
, then Printing preferences > Color
> Select RGB source profile or Select CMYK source profile.
For a good emulation, the printer needs a specification of the colors these devices can reproduce. The
standard way of encapsulating such information is in ICC profiles. As part of the solution, we provide the
most common standards for the different devices. Apart from selecting the appropriate ICC profile, you
should select the appropriate rendering intent depending on the type of print: business presentation,
photography, or proof. See 
Set the rendering intent on page 72.
The options are as follows.
CMYK color emulation
A traditional workflow defines color in the CMYK space. For best results, the colors must be adjusted to
the printer, because different printers will produce different colors from the same CMYK data. If the image
file you are printing was not created specifically for your HP Designjet printer, it will require some
readjustment, which can be done using one of the following options provided with your printer.
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							All CMYK emulation options apply to PDF, PostScript, TIFF, and JPEG files only.
●None (Native): no emulation. The printer will use its default internal conversion from CMYK to
RGB, without following any color standard. This does not imply that results will be bad
●U.S. Sheetfed Coated 2 uses specifications designed to produce quality separations using U.S.
inks under the following printing conditions: 350% total area of ink coverage, negative plate, bright
white offset stock.
●U.S. Sheetfed Uncoated 2 uses specifications designed to produce quality separations using
U.S. inks under the following printing conditions: 260% total area of ink coverage, negative plate,
uncoated white offset stock.
●U.S. Web Coated (SWOP) 2 uses specifications designed to produce quality separations using
U.S. inks under the following printing conditions: 300% total area of ink coverage, negative plate,
coated publication-grade stock.
●U.S. Web Uncoated 2 uses specifications designed to produce quality separations using U.S.
inks under the following printing conditions: 260% total area of ink coverage, negative plate,
uncoated white offset stock.
●Europe ISO Coated FOGRA27 is designed to produce quality separations for standard ISO
12647 printing under the following printing conditions: 350% total ink coverage, positive film,
coated paper.
●Euroscale Uncoated 2 uses specifications designed to produce quality separations using
Euroscale inks under the following printing conditions: 260% total area of ink coverage, positive
plate, uncoated white offset stock.
●JMPA: Japanese standard for offset press
In the front panel and the Embedded Web Server, some further options are available:
●Japan Color 2001 Coated uses the Japan Color 2001 specification for type 3 (coated) paper.
It is designed to produce quality separations using 350% total ink coverage, positive film, and coated
paper.
●Japan Color 2001 Uncoated uses the Japan Color 2001 specification for type 4 (uncoated)
paper. It is designed to produce quality separations using 310% total ink coverage, positive film,
and uncoated paper.
●Japan Color 2002 Newspaper uses the Japan Color 2002 for Newspapers specification. It is
designed to produce quality separations using 240% total ink coverage, positive film, and standard
newsprint paper.
●Japan Web Coated (Ad) uses specifications developed by the Japan Magazine Publisher
Association for digital proofing of images in the Japanese magazine/advertising market.
●Toyo is designed to produce quality separations for Toyo printing presses.
●DIC is designed to produce quality separations for Dainippon Ink Company printing presses.
NOTE:These options have no effect if the application is defining its own CMYK space, known
as calibrated CMYK or CIEBasedDEFG in PostScript terminology.
RGB color emulation
These options apply to PDF, PostScript, TIFF, and JPEG files. For HP-GL/2 and RTL files, only sRGB and
AdobeRGB are supported.
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							Your printer is provided with the following color profiles:
●None (Native): no emulation, for use when the color conversion is done by the application or
operating system, and therefore the data arrive at the printer already color-managed.
●sRGB IEC61966-2.1 emulates the characteristics of the average PC monitor. This standard space
is endorsed by many hardware and software manufacturers, and is becoming the default color space
for many scanners, printers, and software applications.
●ColorMatch RGB emulates the native color space of Radius Pressview monitors. This space
provides a smaller gamut alternative to Adobe RGB (1998) for print production work.
●Apple RGB emulates the characteristics of the average Apple monitor, and is used by a variety of
desktop publishing applications. Use this space for files that you plan to display on Apple monitors,
or for working with old desktop publishing files.
●Adobe RGB (1998) provides a fairly large gamut of RGB colors. Use this space if you need to do
print production work with a broad range of colors.
HP Professional PANTONE Emulation
When you use a named PANTONE color in an image, your application will normally send to the printer
a CMYK or RGB approximation to that color. But the application does not take the printer or the paper
type into account, it merely produces a generic approximation of the PANTONE color, which will look
different on different printers and on different papers.
HP Professional PANTONE Emulation can do a much better job by taking into account the characteristics
of the printer and the paper type. The results look as similar to the original PANTONE colors as is possible
on a given printer using a given paper type. This technology is designed to produce emulations similar
to those set up manually by prepress professionals.
To use HP Professional PANTONE Emulation, all you have to do is to turn it on. In fact, it is normally on
by default.
●In the Windows PostScript driver dialog: go to the Color tab and select HP Professional
PANTONE Emulation.
●In the Mac OS Print dialog: go to the Color Options panel and select HP Professional
PANTONE Emulation.
●On the Embedded Web Servers Submit Job page: select Color > HP Professional
PANTONE Emulation.
NOTE:HP Professional PANTONE Emulation is available only when printing a PostScript or PDF
job.
You can also use the Embedded Web Server 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. So HP Professional PANTONE Emulation not only
provides the closest match that can be achieved on your printer; it also gives clear information on how
close the emulation is to the original spot color.
To print a swatch book, select the Embedded Web Servers Main tab, then HP Professional
PANTONE Emulation. Select the PANTONE stock to emulate, then the PANTONE colors that you want
to print. When you have selected all the colors you want, press the Print button.
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							Color adjustment options
The aim of color management is to print accurate colors. If you perform color management correctly, then
you should be able to print accurate colors with no need of any manual color adjustments.
However, manual adjustments may be useful in the following situations:
●If your color management is not working correctly for some reason
●If you want colors that are subjectively pleasing rather than accurate
The printer driver provides different adjustment facilities depending on whether you are printing in color
or in grayscale.
Printing in color
You can adjust the colors of your print in similar ways under Windows and Mac OS:
●In the Windows driver dialog: select the Color tab, ensure that the Advanced Color
Adjustments box is checked, then press the Settings button beside it.
●In the Mac OS Print dialog (PostScript driver): select the Color Options panel, then
Lightness and Hue.
●In the Mac OS Print dialog (PCL driver): select the Paper Type/Quality panel, then
Lightness and Hue.
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							Under either operating system, you will then be able to make adjustments using a lightness slider and
three color sliders.
●The lightness slider simply makes the whole print lighter or darker.
●The color sliders can be used to fade or emphasize each of the primary colors in the print. The primary
colors may be red, green, and blue; or cyan, magenta, and yellow; depending on the color model
used in the image.
The Reset button restores each slider to its default central position.
Printing in grayscale
You can adjust the gray balance of your print in similar ways under Windows and Mac OS:
●In the Windows driver dialog: select the Color tab, ensure that the Advanced Color
Adjustments box is checked, then press the Settings button beside it.
●In the Mac OS Print dialog (PostScript driver): select the Color Options panel, then Gray
balance.
●In the Mac OS Print dialog (PCL driver): select the Paper Type/Quality panel, then Gray
balance.
Under either operating system, you will then be able to make adjustments using separate controls for
highlights, midtones, and shadows.
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							●The lightness slider simply makes the whole print lighter or darker. This slider is available under
Windows in the same window as the other grayscale controls; it is available under Mac OS by
selecting Lightness and Hue.
●The zone definition sliders can be used to define what you mean by highlight, midtone, and shadow.
●The other controls for highlight, midtone, and shadow can be used to adjust the gray balance of
highlights, midtones, and shadows respectively.
The Reset button restores each control to its default setting.
Color management scenarios
The following step-by-step instructions for specific printing jobs using specific software are similar to those
you can find in HPs Knowledge Center on the Web. You are recommended to consult the Knowledge
Center at 
http://www.hp.com/go/knowledge_center/djz3100/ for further examples and for the most
up-to-date information.
Print a color photo for an exhibition (Photoshop, PS driver)
This example uses Adobe Photoshop CS2 under Mac OS X, with the PostScript driver. Color management
is done by Photoshop.
1.Initial recommendations:
●Choose an appropriate paper type for the purpose.
●The paper type should be calibrated and profiled with the printer and the print-quality level that
you intend to use. See 
Color calibration on page 68 and Color profiling on page 69.
●For a correct preview of the printed image, the monitor should also be profiled.
2.Open Adobe Photoshop CS2.
3.From the Edit menu, select Color Settings.
●Make sure that More Options are displayed.
●Working Spaces > RGB: select Adobe RGB (1998) or sRGB.
●Color Management Policies: select Preserve Embedded Profiles.
●Profile Mismatches: check Ask When Opening and Ask When Pasting.
●Missing Profiles: check Ask When Opening.
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							●Conversion Options > Intent: select Perceptual.
●Click OK.
4.From the File menu, select Open to open the image.
●If the document has an embedded color profile that does not match the current working space,
select Use the embedded profile. Otherwise, select Assign working space; in this
case, if the displayed image does not look correct, try assigning it to other color spaces with
Edit > Assign Profile (try sRGB, Adobe RGB, ColorMatch RGB and others) until you
are satisfied.
●Click OK.
5.From the File menu, select Print with Preview.
●Select Page Setup.
●Format for: select the printer (for example, HP Designjet Z3100ps GP 24in
Photo).
●Paper Size: select the size of the paper that is currently loaded into the printer.
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							●Orientation: select the orientation of your image on the paper.
●Click OK.
●Set the Position and the Scaled Print Size you need.
●Make sure that More Options are displayed.
●Select the Color Management tab.
●Print: select Document.
●Options > Color Handling: select Let Photoshop Determine Colors.
●Options > Printer Profile: select the right profile for your printer and paper type.
●Options > Rendering Intent: select Perceptual.
●Click Print.
6.Choose driver settings.
●Printer: select the printer (for example, HP Designjet Z3100ps GP 24in Photo).
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