Xerox 4520 User Manual page 296

NLM See NetWare Loadable Module.
NOS See Network Operating System.
NVM Nonvolatile Memory. Memory that is not corrupted
when power is removed, usually due to battery backup; used
to store printer settings while the printer is powered off.
NVRAM Nonvolatile Random Access Memory.
Offline When the printer is offline, it does not accept data
from the computer.
Online When the printer is online, it is able to accept data
from the computer.
Orientation Choice of printing portrait (vertically) or
landscape (horizontally) on a page.
Output tray Where printed material is delivered. The output
tray on the 4520/4520mp is located on the top of the printer.
Paper jam When paper becomes wedged somewhere along
the paper path.
Paper source Paper can feed into the printer, via a paper tray
or other paper feeding device. Also, the setting in a software
application that specifies from where paper will feed for
printing. (The paper source is mapped to a physical tray or a
sequence of trays.)
Parallel port A type of port in which data is transmitted and
received in bytes rather than bits. Typically used for local
printing over short distances.
Parity The addition of one or more redundant bits of
information used to verify its accuracy.
PC Personal Computer; specifically, an IBM PC or compatible.
PCL 5e Hewlett Packard Printer Control Language Level 5e.
GL-8 4 5 2 0 / 4 5 2 0 m p U s e r ' s G u i d e