270
Appendix D
Default
A value, parameter, attribute, or option that is
assigned by a program or system when another has
not been specified by the user.
Diagnostic
Pertaining to the detection and isolation of a printer
malfunction or mistake.
Direct Thermal
Media
Media coated with special chemicals that act as an
accelerator, acceptor dye, and binder. In Direct
Thermal mode, the heat from the selected
rectangular elements in the thermal printhead makes
direct contact with the media (no ribbon is used) and
causes a chemical reaction that creates the image on
the media.
Direct Thermal
Printing
A printing method in which no ribbon is used to
transfer data from the printhead to the media to
create an image. The thermal printhead selectively
heats small rectangular elements which make direct
contact with the coated media.
DRAM
Dynamic Random Access Memory. Can be read
from or written to at any time. DRAM is volatile:
whatever is in DRAM is lost when power is turned off.
Expanded Memory Cartridge (EMC)
The expanded memory cartridge (EMC) is an extra
32MB Flash memory storage cartridge that allows
users to download forms, logos, and fonts.
Fanfold Media
Media supplied in a fanfold stack instead of a roll
format.
Flash Memory
Nonvolatile memory. See Nonvolatile Memory.
Font
A collection of printing characteristics for printing
alphanumeric characters, all of which combine to
produce a distinctive style of print.
Host Computer
The computer that stores, processes, and sends
data to be printed, which communicates directly with
the printer. The term “host” is used to indicate the
controlling computer, since modern printers are
themselves microprocessor-controlled computer
systems.
PGL
Intelligent Graphics Printing software for the
Printronix Graphics Language, designated for
Printronix printers. IGP/PGL provides online forms,
barcodes, and many alphanumeric text-generation
capabilities and is compatible with earlier versions of
Printronix IGP protocol and programming.