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Glossary
Serial interface
A connection between the computer and printer in which data is
transmitted sequentially over a single wire. A serial interface is slower
than a parallel interface, but it can send data over a much greater
distance. The RS-232C interface is a type of serial interface. See also
Parallel interface.
Serial protocol
A set of rules used by the computer and the printer to regulate the
flow of data between them.
Symbol set
The set of characters used in a font. Most symbol sets contain
standard letters, numbers, and punctuation. Symbol sets differ in the
accented characters, line drawing characters, and special symbols they
contain. ASCII, Roman-8 and PC-8 and examples of symbol sets.
Symbol sets are also called character sets, which is the term usually
used with dot matrix printer fonts. See also ASCII character set; ISO
GLOSSARY
symbol set.
Toner
Electrically charged black particles that adhere to charged areas on
the photoconductive drum to produce an image pattern. The black
particle pattern is transferred to the paper and melted by the fuser
unit to form a permanent image on the paper.
Transfer unit
The part inside a page printer that transfers the image from the
photoconductive drum to the paper.
User's Manual
GL-7
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