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GLOSSARY
XEROX DOCUPRINT 4850/4890 IPS INSTALLATION PLANNING GUIDE GLOSSARY-5
data stream Format of data passed from one device to another.
data transmission Transmission of coded data over telephone or other
telecommunication lines.
DCIM Data Control Interface Module. The video interface hardware which
resides in the SUN workstation (the DCIM replaces the XEPI board).
decomposer Printer Controller task that translates print data from the PDL
command file into a bitmap image of the page to be printed.
default Predefined value the system uses when another value is not
provided.
device Any piece of hardware other than the CPU (Central Processing Unit).
DFA Document Feeding and Finishing Architecture. Software that
enables third-party feeding and finishing devices to be attached to a
Xerox printer to perform pre- and post-processing functions (such as
roll-feeding, saddle-stitching, booklet-making, etc.)
diagnostics Programs used to diagnose problems within the system or to help
service personnel pinpoint the source of such problems.
digitize To express or represent data in digital (binary) form so that it can be
processed electronically.
directory Logical grouping of files and subdirectories that are identified by
name. The directory helps organize data on large storage media.
dithering The process in laser printing which uses dot patterns to simulate
shades of gray or tones of a color.
DOS Disk Operating System. Operating system commonly used on
personal computers. See also operating system.
dot Unit of measurement representing a fraction of an inch, for example,
300 dots per inch (dpi). May also be referred to as a picture element
(pixel) or spot.
dry ink Minute particles of resin and carbon toner deposited and fused onto
the page to create images. Toner is combined with developer to form
the dry ink.
duplex Ability to send and receive information simultaneously.
duplex printing Printing on both sides (front and back) of a page. See also simplex
printing.