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parity
A method of checking the reliability of data transmission between
the computer and printer.
point size
The height of a particular typeface as measured from the top of
the tallest character to the bottom of the lowest. A point is a
typographic unit of measure equivalent to l/72 of an inch.
portrait
Printing that is oriented upright on the page (as opposed to
landscape, in which printing is oriented sideways on the page).
This is the standard orientation for printing letters or documents.
printer driver
See driver.
printer mode
A set of operating commands that determines how data sent from
the computer is interpreted and acted upon. Printer modes can
emulate existing printers. The EPL offers three printer modes:
PostScript, I’S binary, and HP emulation.
RAM
Random Access Memory. The portion of the printer’s memory
used as an input buffer and for storing downloaded fonts and
graphic images. Information stored in RAM is volatile and is lost
when the printer power is turned off.
reset
To return a printer to its defaults, by use of a command, interface
signal, control panel, or by turning the printer off and on.
ROM
Read Only Memory. The portion of the printer’s memory that is
permanent. Information stored in ROM is used to control how the
printer operates. Resident fonts are also stored in ROM.
GL-6
Glossary