Xerox 4050, Справочник изделия

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GLOSSARY
GLOSSARY-6 XEROX 4050/4090/4450/4650 LPS PRODUCT REFERENCE
operating system Software that controls the low-level tasks in a computer system,
such as input or output and memory management. The
operating system is always running when the computer is active.
orientation In reference to image area, describes whether the printed lines
are parallel to the long edge of the paper (landscape) or the
short edge of the paper (portrait).
origin In reference to image area, the upper left corner of a sheet.
overprint ratio Maximum number of variable data and form characters that can
be intersected by a single scan line.
packet A group of DJDE records terminated by an END command.
page end Command character (form feed) to terminate the current page.
palette Predefined set of colors or inks. Different versions are provided
with the printer and with host- or PC-based application software.
parameter Part of a command, other than the keyword. See keyword.
parse To read or interpret a command; to build up a parameter list
from information within a command.
PCC Printer Carriage Control.
PDE Page Description Entry.
PDL Print Description Language. Language used to describe printing
jobs to a laser printing system. PDL describes the input (type,
format, characteristics), performs the processing functions
(logical processing), and describes the output (type, format, font
selection, accounting options).
PE Phase encoded.
physical page Actual page size your printer uses to print a form.
pitch Width of a fixed-pitch font expressed in characters per horizontal
inch.
pixel Acronym for picture element. Smallest addressable point of a
bitmapped screen that can be independently assigned color and
intensity.
point In Xerox laser printing systems, a unit of measurement equal to
0.0139 inch. Points are always used to express type, size, and
leading. There are 12 points to a pica and about 72 points to an
inch.