Color management from printer drivers
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
prole embedded in the image and
the ICC prole 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 performs the color conversion using the proles
stored in the printer and any additional proles 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 le directly to the printer through
the Embedded Web Server. In either case you have to select the proles to use as default (in case
the job doesn't specify any) and the rendering intent to apply.
—
Non-PostScript (PCL3, HP-GL/2, CALS/G4): the color management is done using a set of stored
color tables. ICC proles are not used. This method is somewhat less versatile than the
alternatives, 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 send a PCL3, HP-GL/2, or CALS/G4 le
directly to the printer through the Embedded Web Server.
NOTE: The printer can convert only the following color spaces to its own color space using the
stored color tables: Adobe RGB and sRGB if you are using Windows, Adobe RGB if you are using Mac
OS X.
You are recommended to consult the HP Support Center (see HP Support Center on page 165) to see how to
use the color management options of your particular application.
To choose between Application-Managed Colors and Printer-Managed Colors:
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In the Windows driver dialog: select the Color tab.
●
In the Mac OS X Print dialog: select the Color Matching panel. Vendor Matching or In Printer
corresponds to Printer-Managed Colors mode. ColorSync should be used only if you cannot choose
Application-Managed Colors in your application print dialog.
●
In some applications: you can make this choice in the application.
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 dierent adjustment facilities depending on whether you are printing in color or in
grayscale.
76 Chapter 10 Color management ENWW