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printing
Printing in which the width of the character varies from character to
character. For example, a capital W receives much more space than a
lowercase
i.
The result looks more like a typeset book than a typewritten
draft.
RAM
Random Access Memory. The portion of the printer’s memory used as a
buffer and for storing user-defined characters. All data stored in RAM is
lost when the printer is turned off.
reset
To return a printer to its defaults either by sending a command, an INIT
signal, or by turning the printer off and then back on.
ROM
Read Only Memory. A portion of memory that can only be read and
cannot be used for data storage. ROM retains its contents when you turn
off the printer.
se/f
test
A method for checking the operation of the printer. When you run the self
test, the printer prints the characters stored in its ROM.
sottwafe
program
A software program that helps you carry out a particular task, such as
word processing or financial planning.
superscript
Printing in which each character is printed at about two-thirds the normal
height in the upper part of the character space.
unidirectionai
printing
Printing in which the print head prints in one direction only.
Unidirectional printing is useful for printing graphics because it allows
more precise vertical alignment than bidirectional printing.
user-defined churactefs
Characters that are defined and stored in the printer by the user. Also
called download characters.
4
Glossary