Xerox CX240 Color process in which the red, green and blue components, With a dot area near 75%

260	Spire CX250 Color Server User Guide
Subtractive color model	A color process in which the red, green and blue components of the
	original subject are reproduced as three super-imposed images in the
	complementary (subtractive) colors of cyan, magenta and yellow
	respectively. See also CMYK, Process colors, Additive color model.
Three quartertone	Tone area of an image influencing the shadow detail and with density
	values between the Midtone and the Dark Point. Typically printed
	with a dot area near 75%.
Tone compression	The reduction of the density range of an original to the density range
	achievable in the reproduction.
Tone reproduction curve	A graph showing the density of each point of the original and its
	corresponding density on the reproduction.
Trapping	Creating and overlap (spread) or an underlap (choke) between colors
	that adjoin each other to hide misregistration during printing.
	Trapping is sometimes referred to as spreads and chokes, or fatties
	and skinnies.
UCR	Abbreviation of Undercolor Removal. This is a method for reducing
	the CMY content in neutral gray shadow areas of a reproduction and
	replacing them with black. As a result, the reproduction appears
	normal but less process color inks are used. See also GCR.
Unsaturated color	A color whose highest value is less than approximately 80%. In an
	unsaturated, dirty color, the difference in the values of the wanted
	colors and the unwanted color is relatively low.
	For example, when the color is red, 30% cyan, 80% magenta, 70%
	yellow is more unsaturated than 0% cyan, 90% magenta, 80% yellow.
Variable Information (VI)	Variable information (VI) jobs are jobs in which the printed materials
	are individualized for specific recipients or purposes. These materials
	can include bills, targeted advertising and direct mailings.
Vector drawing	The geometric system used to define lines and curves in many
	computer graphics most often used for line drawings.
Vignette	See Degradé.
Virtual Printer	For Macintosh and PC networks, the Spire CXP Color Server
	provides three default network printers, known as virtual printers.
	Virtual printers contain preset workflows that are automatically
	applied to all print jobs processed with that virtual printer.