HP Designjet T7100 Printer series - Manual (Page 102)

Introduction
Your printer has been engineered with advanced hardware and software features to ensure predictable
and dependable results.
● Gray, dark gray, and matte black inks provide neutral grays on all paper types
Color printers only
● Color calibration for consistent colors
● Color emulation of other HP Designjet printers
If you have a T7100 Mono printer, you should read the sections below on color management and
color adjustment options; you can probably ignore the other sections of this chapter.
How colors are represented
All devices that display color use a color model to represent color in numerical terms. Most monitors
use the RGB (Red-Green-Blue) color model, while most printers use the CMYK (Cyan-Magenta-Yellow-
blacK) color model.
An image can be converted from one color model to another, but in general the conversion is not
perfect. Your printer uses the RGB color model: the same color model that is used by your monitor.
This simplifies but does not completely solve the problem of matching colors. Each device represents
colors a little differently from another device, even if they use the same color model. However, software
can adjust the colors in an image according to the characteristics of the particular device, using a color
profile of the device, in order to achieve correct colors.
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. Color-calibrate the paper type, for consistent colors. Calibration should be repeated every now
and then (see Color calibration on page 94 ). In addition, you may wish to calibrate
immediately before a particularly important print job for which color consistency is vital.
2. When printing, select the correct color preset for the paper type you are using.
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 similar prints from any two different printers situated in different
geographical locations.
94 Chapter 9 Color management ENWW
Color management