Epson LQ-500 User Manual page 122

platen
The black roller that provides a backing for the printing.
print quality
Your printer
has
Quality. Draft is for high-speed, draft quality jobs; Letter Quality is
for final, polished documents.
proportional 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 lower case i. The result looks more like a typeset book than
a typewritten draft.
RAM
Random Access Memory. The portion of
as a buffer and for storing user-defined characters. All data stored
in RAM is lost when the printer is turned off.
self test
A method of checking
test is run, the printer prints out its current DIP switch settings and
characters that are stored in its ROM.
the
two types of print quality: draft and Letter
operation of
the
printer's memory used
the
printer. When the self
the
Glossary GL-5