User`s guide

Raster Graphics The system of forming graphics using a bitmap, or grid of
small dots, is called raster graphics. The term “raster” denotes the Cartesian
grid system in which the dots are arranged. Bitmaps can define images,
shapes, or characters created with a specific number of dots per inch. See
also bitmap.
Resident Fonts Fonts permanently stored in the printer’s memory; also
called internal fonts.
Resolution A measurement of the dots per inch (dpi) in output material, either
printed or visual, as in a high-resolution monitor. Your printer features a 300
and 600 dpi resolution.
ROM An acronym for Read Only Memory, ROM is a more stable kind of
memory than RAM. Information stored in ROM is retained and can be
retrieved each time the machine is activated.
RTS An acronym for Request to Send. RTS is a signal sent from the host to the
printer indicating it is ready to send data.
Screen The pattern in which dots or lines are placed on a page to create colors.
Screen Angle The angle at which a screen is printed. See also screen.
Select Key The control panel key used to access a menu or to choose a
displayed selection or option.
Serial A data transmission technique that sends each bit sequentially over a
single line. It is normally used to send one bit at a time for data
communications.
Serial Interface This is a connection between computers and printers in
which character information is transmitted sequentially as contrasted with
parallel transfer.
Glossary G-11