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command sequenceTwo or more bytes that instruct the printer to perform a
special function. The first character in the sequence is a
special function control character. This character alerts
the printer that the string which follows is a command
sequence, not a character or graphic code.
See also escape sequence.
compatibility
The ability of one printer to accept and properly process
commands meant for a different printer.
See also emulation and protocol.
compressed
Refers to a typeface with a font width approximately 60%
smaller than normal. Character height is not changed.
configuration
Refers to the operating properties that define how the
printer responds to signals and commands received from
the host computer at the printer interface. These
properties are called configuration parameters and are
set to match the operating characteristics of the host
computer system.
controller
An independent logic unit in a data processing system
that controls data paths between one or more units of
peripheral equipment.
Abbrev. for characters per inch. A measurement of
cpi
monospaced fonts indicating the horizontal character
density. For example, 10 cpi means 10 characters can be
printed in one horizontal inch.
See also pitch.
cps
Abbrev. for characters per second. A measurement of
the print speed of a serial (character) printer.
Abbrev. for Central Processing Unit.
CPU
CR
Abbrev. for Carriage Return.
data bits
Binary information sent to the printer; a character set
grouping containing letters, digits, and punctuation marks
to be printed, or control codes to move paper, format text
and graphics, and position the text and graphics on the
page.
DCD
Abbrev. for Data Carrier Detect. Status signal to the
printer. The ON condition is required for the printer to
receive data.
decipoint
One tenth of a point. A unit of length equal to 1/720 inch.
See also point.
default
A value, parameter, attribute, or option assigned by a
program or system if another is not specified by the user.
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