Xerox Phaser EX7750 Reference Guide

Describes 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.

An image containing fine gradations of 
tones, such as a photographic image. 

A feature of color management systems 
and PostScript Level 2 and PostScript 3 
color devices that maintains the best 
possible translation of color from one 
color device to another. A color 
rendering dictionary (CRD) is used by 
the color management system or the 
device’s PostScript interpreter when 
converting data between color spaces. 
The Color Server includes several CRDs, 
each of which provides a different color 
rendering style.

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.

A data file standard defined by Quark, 
Inc., to assist in making color separations 
with desktop publishing systems; five 
files are created—four color files (one 
each for C, M, Y, and K) and a 
composite color preview file of the color 
image. It allows an image-editing 
application to perform color separation 
and pass it through to final output with 
its integrity intact.

An instrument commonly used in the 
graphic arts industry to measure density 
according to a specified standard. 

A measurement of the light-absorbing 
quality of a photographic or printed 
image.

See DCS.

A Japanese standard of specifications for 
separations, proofs, and color printing. 

See Encapsulated PostScript.

A PostScript file format designed to be 
embedded in another PostScript stream.

A European standard of specifications 
for separations, proofs, and color 
printing.