User`s manual

8 Glossary
said to be volatile because all data are lost when power is turned
off or interrupted. Compare ROM
read To retrieve data from memory or mass storage (hard disk, floppy
diskette, RAM, etc.).
reset To turn off, deactivate, disable, or return to a previous state.
resolution A measure expressing the number of component units in a given
range used to create an image; in printing, expressed as the
number of dots per inch (dpi) horizontally and vertically.
ROCS Return from Other Coding System: A control sequence that
allows you to return the printer to the previous emulation from
any point in the printer’s configuration.
ROM Read–Only Memory. Programs, instructions, and routines
permanently stored in the printer. ROM is not lost when power is
turned off and cannot be written to—hence the name “read only.”
ROM–resident fonts are permanently stored in a printer and
available at any time via software commands. Compare RAM.
roman A type style in which characters are upright. This sentence is
printed in a roman type style. Compare Italic.
sans serif A typeface or font in which the characters do not have serifs.
    
serial communications The sequential transmission of data, in which each element (bit)
is transferred in succession.
serial matrix Refers to the manner in which text characters are printed. In a
serial matrix printer, a moving printhead uses pins to form whole
characters one at a time and one after the other. The pins print
dots according to programmed matrix patterns. Although data are
sent to the printer interface either a serially or in parallel, the
printhead receives the data serially in order to form each
character. The LG06 printer also forms characters with dots in
matrix patterns, but it feeds print data in parallel to many
hammers mounted on a rapidly oscillating shuttle. The hammers
fire simultaneously to print entire lines at a time.