Annex C - Glossary
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C.2 Annex DA615
Font:
A font is a collection of characters and symbols
of the same print type and spacing, the same
size (height), line thickness and print orienta-
tion. Fonts can be installed inside the printer or
loaded externally via font cartridges.
Font cartridges:
These contain fonts that can be loaded into the
printer.
Handshake:
This refers to the control of the data transfer
between the computer and the printer in order
to protect the printer’s memory buffer from
overflow or loss of data.
Hardware:
The parts of your computer system such as the
computer itself, the keyboard and the printer.
Interface cable:
The data transfer cable that connects your
computer with the printer or other peripheral.
Interface connection socket:
The DA 615 is supplied with two interface
connection sockets, a parallel and a serial one.
Both are located under the paper feed tray
next to the power module. The connection
cable for your computer and printer is con-
nected to this socket.
Internal fonts:
These fonts are installed in the printer of which
they form a permanent part.
Line thickness:
This refers to the width of barcode lines. Nor-
mal and bold thicknesses are available.
LPI
Lines Per Inch: the unit of line spacing. The
most frequent spacing for printing is 6 Ipi.
Off-line:
In off-line mode, the printer cannot receive any
data from the computer. Settings and pro-
gramming are then carried out directly on the
printer.
On-line:
In on-line mode, the printer can receive data
from the computer. In this state, the keyboard
is locked except for the START key.
Paper jam:
A paper jam may occur during printing, with
blockage of paper feed or ejection.
Paper sensor:
This is required for maintaining the top margin
value and for stopping the printer in the event
of a paper jam. The medium must always be
transported over the paper sensor.
Paper size:
This refers to the paper format on which text is
printed. With an address block rotation around
180°, the top margin is automatically calculated
so that it corresponds to the value set for the
normal address-block orientation.
Parallel interface:
This is also known as a Centronics interface
and connects the computer to the printer. It
always transfers 8 bits = 1 byte at a time (in
parallel).
Parity:
Parity is an error-detection technique used on
a serial interface. Errors are detected during
data transfer. This involves checking the even
number of binary ones in an information unit
(such as a byte).
PCL instruction
Printer Control Language is the HP PCL Level
III printer language developed by Hewlett-
Packard.
Pitch:
The number of printed characters in an inch.
Print area:
The maximum width accessible to the printer
cartridge.
Print cartridge:
The cartridge contains the ink for printing. An
empty cartridge is replaced by a new one of
the same type.
Print density:
A measure of image definition. It is measured
in dots per inch (dpi).
Print orientation:
The characters can be printed either upright
(normal) or as italics with a constant angle.
Print type:
This refers to the print design of a character
set. Thus Cour has a different character design
than LetGot or Helv.
Printer commands:
Commands entered via the software applica-
tion in order to make changes in the active
printer configuration.
