Lexmark 1200 manual DSR. See Data Set Ready DTR. See Data Terminal Ready

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.

drum. The electrically charged surface within the photoconductor inside your printer. Light from the LEDs exposes the photosensitive material on the drum, creating a likeness of the page.

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 EDO memory. Extended Data Out memory. A memory chip technology that improves memory performance 10 to 15% over standard memory.

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)

172 Glossary