Glossary–3
command delimiter An ASCII character used to begin a command string (same as
SFCC). Commonly used command delimiters are ESC (1B hex)
and SOH (01 hex).
command sequence Two or more bytes that instruct the printer to perform a special
function. The first character in the sequence is a special function
control character (SFCC), which alerts the printer that the string
is a command sequence.
See also escape sequence, SSCC, and SFCC 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 must be 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 the central processing unit and one or
more units of peripheral equipment.
cpi Characters per inch: a measurement of monospaced fonts
indicating the horizontal character density. For example, 10 cpi
means 10 characters can be printed in one horizontal inch.
cps Characters per second: a measurement of the print speed of a
serial (character) printer.
CPU Central Processing Unit.
CR Carriage Return.
CTØ Abbrev. for Coax/Twinax only: a model available in a previous
generation of the IBM Line Matrix Printer.
CTA Abbrev. for Coax/Twinax/ASCII.
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