Epson Stylus Color 980 Manual page 240

monochrome
Printing using only one color of ink, which is generally black.
nozzle
Fine tubes in the print head through which ink is sprayed on the page. Print
quality may decline if the print head nozzles are clogged.
operation check
A method for checking the operation of the printer. When you perform a printer
operation check, the printer prints the ROM version, code page, ink counter code,
and a nozzle check pattern.
parallel interface
See interface.
port
An interface channel through which data is transmitted between devices.
printable area
The area of a page on which the printer can print. It is smaller than the physical
size of the page due to margins.
printer driver
A software program that sends commands for using the features of a particular
printer. See also driver.
print queue
When your printer is connected to a network, a waiting line in which print jobs
that are sent to the printer are held while the printer is busy.
RAM
Random Access Memory. The portion of the printer's memory that is used as a
buffer and for storing user-defined characters. All data that is stored in RAM is
lost when the printer is turned off.
reset
To return a printer to its defaults by turning the printer off and then back on.
resolution
The number of dots per inch used to represent an image.
ROM
Read Only Memory. A portion of memory that can only be read and cannot be
used for data storage. Data that is stored in ROM is retained when you turn off
the printer.
RGB
Red, green, and blue. These colors, in phosphors irradiated by a cathode ray tube
(CRT) monitor's electron gun, are used to create the additive array of screen
colors.
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Glossary