Lexmark Optra C710 User Manual page 258

244
Glossary
display. The liquid crystal display on the printer operator
panel that shows printer menus and messages.
DL. Envelope measuring 110 x 220 mm.
download. To transfer information, such as fonts, from a
diskette or other device to your computer or printer for
temporary or permanent storage.
dpi. Dots per inch. See resolution.
DRAM. See dynamic random access memory.
drawer. See optional drawer.
driver. See printer driver.
DSR. See Data Set Ready.
DTR. See Data Terminal Ready.
dynamic random access memory (DRAM). Memory that
allows rapid storage and retrieval of data. DRAM contents
are erased when electrical power is turned off.
E
Electromagnetic Interference (EMI). Interference caused
by a radiated electromagnetic field. Speakers, telephones,
fans and other motors are typical sources of EMI.
emulation. Imitation of a printer processing language; for
example, PCL 5 emulation imitates the printer language
used with the Hewlett-Packard LaserJet printer.
Ethernet. A network with a bus topology that utilizes
carrier sense multiple access with collision detection
(CSMA/CD). An Ethernet network may be installed using
any of three cabling systems:
• Ethernet 10Base2 (using RG-58 coax)
• Ethernet 10BaseT (using telephone twisted pair
cable)
• Ethernet 100BaseTX