Epson SQ-2550, User Manual

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Glossary
memory
The printer, like a computer, has a memory. When you print a
file from a computer, the contents of the file are transferred
quickly from the computer’s memory to the printer’s memory.
The printer then prints information from its own memory at a
much slower rate. This way of printing frees the computer to
do other work while the printer is still working. The printer
memory is sometimes called the buffer.
micro adjustment
A feature
that
adjust the loading and short tear-off positions in
1/180th of an inch units. This feature can be used immediately
after loading paper.
micro feed
See micro adjustment.
number systems
Three number systems are commonly used with printers:
decimal
is base 10 and uses the digits 0, 1, 2, 3, 4, 5, 6, 7, 8,
and 9. (This is
the
most familiar system.)
hexadecimal (hex) is base 16 and uses the digits 0, 1, 2, 3, 4,
5, 6, 7, 8, 9, A, B, C, D, E, and F. This is frequently used by
programmers. Any decimal number between 0 and 255 can
be expressed by a two-digit hex number.
binary is base 2 and uses only the digits 0 and 1. All
information in computer systems is handled in binary form
to represent electrical signals that are ON or OFF. A binary
digit is often called a bit; any decimal number between 0
and 255 can be expressed by an eight-bit decimal number.
on line
When the printer is on line, it is in communication with the
computer connected to it.
GL-6 Glossary