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 symbol set.

Toner

GLOSSARY

Electrically charged carbon particles that adhere to charged areas on the photoconductive drum to produce an image pattern. The carbon 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