Oki Microline 3390 User Manual page 339

Appendix F: Index / Glossary
IBM Emulation
In the selected emulation the printer imitates
the chosen printer type and can perform the
print commands of the IBM ProPrinter, for
example.
Impact Printer
A printer which transmits the characters to
the paper by mechanical strokes. See also
»dot matrix printer«.
Inch
One inch is equivalent to 2.54 centimetres.
Technical data (resolution, for example) is
given in inches.
Interface
An interface is a connection between compu-
ter and printer to perform the data exchange.
Interfaces can be parallel or serial: parallel
interfaces (Centronics) transmit data simul-
taneously byte-by-byte. Serial interfaces
transmit data successively bit-by-bit.
Italics
A type style with characters that slant up-
wards to the right.
KByte
1024 bytes are one kilobyte.
Landscape
The paper is printed parallel to the longitudi-
nal edge.
Letter Quality (LQ)
This font is only available for 24-pin printers
because it requires a high resolution of the
characters due to small needle diameters. By
additional dots between the character matrix
a uniform typeface is achieved. The print
speed is reduced.
F-8
Line
A line is a horizontal sequence of characters.
The width of a line is defined by the right
and the left margin (beginning of the line).
The line spacing (lpi, lines per inch) deter-
mines the height of a line.
Line Feed (LF)
This printer command transports the paper
one line ahead. By pressing the LF-key a line
feed can be performed manually. Most times
a carriage return is also performed to move
the print head to the beginning of the line.
Line Spacing
Common line spacing for the print of charac-
ters are 6 and 8 lines per inch (lpi). When
printing graphics the selected line spacing
must ensure that the lower needles adjoin
the upper needles of the next line.
lpi (lines per inch)
The vertical distance of the print lines is giv-
en in lines per inch. Common values are 6 or
8 lpi.
Main Internal Storage (Random Access
Memory, RAM)
In this write-read memory (random access
memory) the data received is stored and pre-
pared for line-by-line printout. Depending
on the type the printer memory can be en-
larged with additional modules and there-
fore relieve the computer. The contents of the
RAM are lost, when the printer is switched
off.
Matrix Printer
The characters are made up of a matrix of
single dots. See »dot matrix printer«.