Xerox ALLY PLUSTM 6287 User Manual
Page 177
Page 13-5
GLOSSARY
Extended ASCII
Some printer manufacturers have
implemented their own version of 8 bit
transmission. Extended ASCII allows
128 additional characters to be
displayed by the printer.
F
FCC
Federal Communications Commission.
FF
Form feed.
Firmware
The pre-programmed EPROMs
installed in the ALLY PLUS (the
internal software).
Flow control
Serial communication handshaking.
Form feed
A control code that instructs the printer
to process the current page and print it;
a page end. The physical transport of
paper to the beginning of a new page.
G
GDDM
Graphical Data Display Manager. An
IBM graphics software product.
GML
Graphic Machine Language.
Graphic Windows
A feature of Xerox printers.
H
Handshaking
An exchange of signals between two
devices in a computer network, as a
prelude to data exchange. The method
of flow control used in serial
interfacing.
Hardware
Any physical device in a computer
network.
Hewlett-Packard
A California company that produces a
wide range of computer equipment and
peripherals.
Hexadecimal
A base 16 numbering system. Numbers
are represented using digits 0-9 and
letters A-F.