Xerox manual DocuColor 2000 series design guide, Preflight

Preflight	A step in the prepress process used to test every component of a job to
	ensure it will print correctly. This can include fonts, image files and
	links, colour gamut, etc.
Prepress	All operations in the print production process that take place up to the
	point where the job is sent to the RIP of a digital printer (or where
	plates are made for an offset press). It starts after the design of a job is
	completed.
Press proof	A colour proof printed on the press used to check that the job is being
	printed correctly.
Print engine	The part of the digital printing press that does the printing.
Printability	Describes how well a paper performs with ink on a press.
Process colours	The four printing colours – cyan, magenta, yellow and black (CMYK).
Profile	A part of the colour management system that contains the
	characteristics of a particular device.
Proof	A proof is a good simulation of how the job will look when it is printed.
	A proof can be made at any stage of the production process, from design
	to final printing. A visual or rough proof allows the designer to confirm
	the concept. A design proof allows confirmation of the layout, design
	and text. A contract proof very closely simulates the final finished job.
PS	Short for PostScript.
Raster image	An image or image file consisting of a two-dimensional array (or grid) of
	pixels. Also called a bitmap.
Raster Image Processor	Generally shortened to RIP. In digital imaging, software and/or hardware
	that inputs high-level page descriptions and outputs low-level data
	streams that can be fed directly to a digital print engine. A RIP
	translates PostScript commands into a bitmap that can be printed. The
	term RIP is used both as a noun to describe the software/hardware and
	as a verb to describe the process of translating the data.
Register mark	A mark on the sheet used to check that a job is in register. When the
	mark is overprinted by each colour perfectly, the colours are in register.
Registration	The perfect alignment of each colour layer on a page.
Resolution	The number of dots available to represent a graphics image. On a
	display, resolution is measured in ppi (pixels per inch), while on a
	printer it is measured in dpi (dots per inch).
RGB	Short for red, green and blue. These are the three primary additive
	colours used in displays, scanners and digital cameras.
RIP	Short for Raster Image Processor.
RIP time	The amount of time it takes to RIP a file. Ineffective or improper page
	layout work will cause extra RIP time.

DocuColor 2000 series design guide

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