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resolution
The number of dots in a defined area. The resolution of the DEClaser 2100
printer is 300 dpi.
ROM
Abbreviation for read-only memory. ROM contains all of the factory default
feature values. It is a permanent memory and cannot be cleared or changed.
serial interface
A data communications interface that transmits data sequentially, one bit
at a time, at a fixed speed. The DEClaser 2100 printer uses an RS232C
serial interface.
sheet
In the context of a laser printer, the physical piece of paper that is printed.
simplex
A layout indicating that a document is formatted to be printed on one side
of a sheet.
toner
A black powder commonly known as dry ink, which is used to form the
characters on the paper. Toner is contained in the EP-S cartridge on the
DEClaser 2100 printer.
transfer corona wire
Places an electronic charge on the paper that attracts (transfers) toner from
the photosensitive drum to the paper.
type family
A group of fonts that have a similar design, but differ in the six other
font attributes. For example, Courier is a type family that resides in the
DEClaser 2100 printer.
type family ID
A 7-character code that identifies a type family.
xon/xoff
A software protocol used with RS232C serial communication. It regulates
the flow of data to the input buffer by exchanging on/off signals with the
host computer. The xon/xoff protocol is sometimes referred to as ‘‘software
handshaking protocol.’’
Glossary–7