Rena DA615 - Manual (Page 74)

\text\etd\DA615\glossary C.1 Annex DA615
C. Glossary
ASCll:
ASCll stands for American Standard Code for
Information Interchange. The printer com-
mands used in this User Guide are entered
with ASCII characters. However, decimal or
hexadecimal characters may also be used.
Barcode:
Data information about a print medium is con-
verted into a barcode, a form independent of
language and characters. A barcode is easy to
create and simple to read by opto-electronic
devices. It is printed in addition to information
written in normal text.
Baud rate:
This is the speed at which data is transferred
between the computer and the printer via the
serial interface. The computer and printer must
have the same baud rate. It can vary between
1200 and 9600 baud depending on the com-
puter used. The baud rate is specified only if a
serial interface is used.
Bit:
Binary digit. A bit is the smallest unit of digital
information and can represent only two states,
namely "I" or "O".
Bit map:
A collection of dots forming text or graphics in
output equipment (printer, monitor).
Buffer:
A buffer is a memory area in the printer. It
stores the input and output information until its
subsequent processing.
Byte:
A memory unit consisting of 8 bits.
Character:
Letters, numbers and symbols that can be
printed.
Character height:
The height of an upper-case printed letter. The
dot size is measured in pica dots. One dot is
1/72 of an inch.
Character set:
A character set is defined according to the
application and is usually a combination of
letters, numbers, lines and symbols within a
font. Character sets may, however, consist
only of symbols.
Character spacing
All fonts have either a constant or a variable
character spacing. In a font with a constant
spacing, all characters have the same width
irrespective of their size. In proportional fonts,
the printed width depends on the actual widths
of the respective characters.
Configuration:
A configuration is a set of specific printer set-
tings. Several configurations can be set up and
stored under specific configuration numbers.
Control code:
See printer command.
Control panel:
This comprises the keyboard and the display. It
is used to make all the internal settings for the
printer.
CPl:
Characters Per Inch: the unit of print density.
Data transfer:
The transfer of information between computer
and printer.
Default configuration:
Before being dispatched, the printer is pro-
grammed with standard settings. These are
stored in the „O“ configuration and remain
active until a different configuration number is
selected and the settings are changed.
Dot size:
The dot size is measured in pica dots. One dot
represents 1/72 of an inch.
DPl:
Dots Per Inch: the unit of measurement for the
image definition. The more dots, the sharper
the image.
Driver:
See Printer driver.
Escape character:
The escape character E
C
is an instruction
indicator in ASCII code. This character is not
printed, but the printer recognises the charac-
ters following it as instruction code.
Escape sequences:
See Printer commands.