QMS 2425 Reference page 227

Print Engine
The non-intelligent portion of the printer, including the laser, print drum, and
paper-feeding mechanism.
Print Quality
A general measure of the appearance and readability of a printed page.
Criteria of print quality include the darkness, clarity, and sharpness of the
printed page.
Printed Circuit Board
A flat board made of plastic, fiberglass, or another nonconducting material
on which chips and other electronic components are mounted.
Printer Driver
A printer driver is a program that translates the file you are printing into a
language that the printer understands. Usually, the printer driver is installed
within an application.
Protocol
A set of rules or standards designed to enable computers and other devices
to connect to one another and to exchange information.
Queue
A storage area for documents waiting to be printed.
RAM
An acronym for Random Access Memory, the memory your printer uses to
perform tasks. It can be written to and read from. Once a task is complete,
the memory is free again to be used for another file. This memory is volatile,
so if your printer loses power while a file is being sent, you must resend the
file. The number and type of features you can run simultaneously on your
printer depend on the amount of RAM available and how that RAM is
distributed. RAM can be increased by adding SIMMs. See also SIMM .
RAM Disk
Also called a virtual disk. The RAM disk is an area of RAM that is used to
simulate an additional hard disk. Data can be written to and read from a
RAM disk more quickly than a hard disk, but a RAM disk loses any
information stored on it when the printer's power is turned off. The frame
buffer and spooling buffer are RAM disk clients. See also RAM .