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Page 13-7GLOSSARY
Interface The method by which different types of
devices are linked to each other for
communication (e.g., serial, parallel,
coax).
Intervention required The message sent to the host system
when an error condition exists at the
printer (e.g., paper jam).
Invalid character In hexadecimal, any character other
than numerals 0-9 and letters A-F.
IR Intervention required.
IRS Interchange record separator.
IUS Interchange unit separator.
L
Laserpage A mainframe software product that
allows high-resolution AFP-generated
text and graphics to be printed on Xerox
and Hewlett-Packard printers without
installing IBM PSF.
Least significant digit The digit representing the least value
(e.g., in 1024, the 4 is the least
significant).
LED Light emitting diode. Emits light when
voltage is applied. Used on the ALLY
PLUS front panel to indicate modes.
Left margin The number of the first column at
which a character can be printed on a
page.
LF Line feed.
Line density Vertical spacing, or the number of lines
per inch that can be printed on a page.
Line Feed A control code that advances the print
position down by one line.
LM Left margin.
Local Copy A screen print operation from a coax-
attached terminal that goes directly
through the controller to the ALLY
PLUS and the printer.