Color management from printer drivers, Color management options – HP Designjet T7100 Printer series User Manual

Page 104

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3.

The chart is scanned and measured.

4.

From the measurements, the printer calculates the necessary correction factors to apply for

consistent color printing on that paper type. It also calculates the maximum amount of each ink

that can be applied to the paper.

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 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 (with the PostScript upgrade): the PostScript interpreter module inside the

printer performs the color conversion using the profiles stored in the printer 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 doesn't

specify any) and the rendering intent to apply.

Non-PostScript (HP-GL/2, RTL): 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

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 are using a non-PostScript

driver and you specify printer color management, or when you send an HP-GL/2 or RTL 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

if you are using Mac OS.

You are recommended to consult the Knowledge Center (see

Knowledge Center on page 178

) 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: select the Color Options panel.

In some applications: you can make this choice in the application.

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Chapter 9 Color management

ENWW

Color management

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