Xerox Fiery Color Server User Manual

Fiery® Color Server

Glossary

© 2007 Electronics for Imaging, Inc. The information in this publication is covered
under Legal Notices for this product.

45061765
02 January 2007

LOSSARY

G

A

GLOSSARY

This Glossary contains some terms that are industry concepts and may not be explicitly
referenced in the documentation set. The term “Print Server” refers to the controller from
EFI that processes jobs for your print device.

additive color model

A system in which colors are produced by combining red, green, and blue light (the additive
primaries). An RGB video monitor is based on an additive color model.

additive primaries

Red, green, and blue light used in additive color systems. When blended together in proper
amounts, these colors of light produce white.

3

B

AppleTalk

Network communication protocol designed by Apple Computer, Inc.

artifact

A visible defect in an image, usually caused by limitations in the input or output process
(hardware or software); a blemish or error.

Atlas PrintShop Mail-Fiery Version

A variable data printing application that supports FreeForm, FreeForm 2, and PostScript.

authoring tool

A software application used to create text or images, or to define layouts for documents.

banding

Visible steps between shades in a color gradient.

bit depth

Amount of information used for each pixel in a raster image. Black-and-white images require
only one bit per pixel. Grayscale images with 256 shades of gray require 8 bits (or 1 byte) per
pixel. Photographic quality color images can require 24 bits per pixel (RGB images) or 32 bits
per pixel (CMYK images).

GLOSSARY

Bitmap (BMP)

A graphics file format established by Microsoft; native to the Windows operating system.

bitmap (or raster)

An image made up of small squares arranged in a grid. Each square in the grid is a pixel.
The number of pixels per inch defines the resolution of a bitmap.

blasting

An undesirable effect that occurs when excess amounts of toner, possibly combined with
certain types of paper stock, cause objects in an image to spread beyond the boundaries
defined in the file.

brightness

Both the saturation and lightness of product color.

4

C

calibration

The process of adjusting the basic setting of a monitor, printer, or other device to standard
values in order to ensure uniform and consistent results over time. Calibration helps assure
predictable and consistent printing results.

calibration target (or calibration set)

A set of measurements that describe the expected density response of a printing device.
Calibration targets are associated with the output profile of the device.

CIE

The International Commission on Illumination, abbreviated as CIE from its French title
Commission Internationale de l’Eclairage, is an organization devoted to international
cooperation and exchange of information among its member countries on all matters relating
to the science and art of lighting. The CIE developed mathematical models to quantify light
sources, objects and observers as a function of wavelength, which led to the development of a
basic color space for plotting colors.

CIEbased colors (A, ABC, DEF, DEFG)

Device-independent color spaces that are produced by color management outside of the Print
Server, such as application software, operating systems, or printer drivers, and are applied at
the user’s computer.

CMS

See color management system.

GLOSSARY

CMYK

A subtractive color model that uses cyan, magenta, yellow, and black (process colors), and is
used in color printing; a color model used in the printing of colors in four-color process
printing.

coated media

Media that is coated to enhance print quality. The coating allows the media to be printed
without allowing significant toner or ink absorption, thereby preventing blurriness or lack
of contrast.

color channel

A single-color image that can be edited separately from the other color channels in a color
space; for example, the red channel of an RGB image.

color gamut

See gamut.

color management system (CMS)

System used to match color across different input, display, and output devices.

5

color rendering dictionary

See CRD (Color Rendering Dictionary).

color separation

The process of separating a color image into the color components for printing: cyan,
magenta, yellow, and black. Also refers to the four sheets of film that result from the process
of separating a color image.

color space

A model for representing color in terms of measurable values, such as the amount of red,
green, and blue in an image. RGB and CMYK color spaces correspond to color devices
(monitors and printers, respectively). Other color spaces, such as CIE Lab, are based on
mathematical models and are device-independent (that is, not based on the color response of
a particular device). See gamut.

colorant

An ink, dye, toner, paint, or other pigment that modifies the color of media to which it
is applied.

ColorWise

See ColorWise color management.

ColorWise color management

An ICC-open color management solution, which is an easy-to-use system that addresses the
needs of both casual and experienced color management users.

GLOSSARY

component

In variable data printing, an element such as text, a graphic, or a photograph that is printed
on a page.

composite printer

Any output device that can print directly in color without first creating color separations.
A composite print can be used as an early proof of an offset print job.

Configuration page

A list of current settings for the configuration, or Setup , of the Print Server. Information on
the Configuration page includes network settings, amount of hard disk space, and default
print settings.

consumable

Material such as ink, toner, paper, or lubricants that must be replenished regularly in order for
the print device to function properly.

continuous tone (contone)

A photographic image that contains gradient tones from black to white (such as a 35mm
transparency or a photograph). Continuous tones cannot be reproduced in that form for
printing, but must be screened to translate the image into dots.

6

cover page

A page that the Print Server prints at the end of a job, summarizing information such as the
user’s name and number of pages.

CRD (Color Rendering Dictionary)

A feature that maintains the best possible translation of color from one color device to
another. A CRD is used by the color management system or the PostScript interpreter of the
Print Server when converting data between color spaces. The Print Server includes several
CRDs, each of which provides a different color rendering style.

Creo VPS (Variable Print Specification)

A variable data printing language.

custom color system

A system of named color swatches that can be matched on press using spot colors or
approximated using process colors. PANTONE and TruMatch are examples of custom
color systems.

custom page size

A user-defined page size used for printing. Custom sizes are defined in the printer driver.