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Crossover Occurs when an image is printed on two adjacent pages in a publication
so readers perceive a single, unbroken image.
Customisation A form of variable information printing. Used to describe a document
that has been customised to its audience. Generally a common
document template is used with different messages and content based
on customer preferences. See personalisation, versioning.
Delta-E A scientific measurement for the difference between two colours. A
colour difference of 0 DE is a perfect match, 1 DE is defined as the
threshold of what is perceptible to the human eye, and 5 DE is
considered acceptable to print buyers.
Densitometer A device used to measure light reflectance or transmission. Used for
calibration of a printer or press.
DFE Short for digital front end. Also called RIP.
DI press Offset press with direct imaging (DI) of plates digitally on the press.
Still a traditional offset press that offers reduced make-ready (or set-up)
times.
Die-cut The process of cutting specific shapes onto a page with sharp steel
knives.
Digital front end The platform that is responsible for job management, queue
management, raster image processing, and transfer of the image to the
print station. It encompasses the print service, the colour RIP, the
storage of Work In Process (WIP), RIPed files and fully automated
production services.
Digital printing A printing system utilising electrostatic technology (where dry or liquid
toner is transferred using an electric charge). A characteristic of digital
printing is that every imaged page can be different.
Dot gain The tendency for halftone dots to become larger and appear darker
because of wet ink spreading when it comes into contact with paper. It
is not a problem with digital or xerographic printing. Also called dot
spread.
Dot spread The tendency for halftone dots to become larger and appear darker
because of wet ink spreading when it comes into contact with paper. It
is not a problem with digital or xerographic printing. Also called dot
gain.
Dots per inch Used as a measure of addressability of a digital printer or sampling
resolution of a scanner. For example, the DocuColor 2045 and 2060 print
at 600 dots per inch.
dpi Short for dots per inch.
Duotone A two-colour halftone, usually printed with black and another colour.
Duplex A form of double-sided printing. The printing press prints the first side,
flips the sheet, then prints the second side during a second pass.
G – 4
DocuColor 2000 series design guide