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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.
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DocuColor 2000 series design guide