The usual cycle that an average user goes through to produce
their (eventually!) stunning final document involves viewing the output
one or more times, where `more' is often a much larger number than
initially anticipated. If the method of viewing the document through
its various steps towards completion is restricted to simply printing it
out on the laserprinter, a large amount of paper is wasted on printing
material to be read approximately once.
Also, the time taken between sending the document to the laserprinter
and the document appearing can sometimes be longer than is
desirable for efficient document production.
The time delay may be due to a large queue of multi-page
documents being ahead of your one-page `first try', or even the fact
that someone has forgotten to refill the laserprinter paper
tray
.
Therefore, in an attempt to save the user valuable time and
effort (and also to avoid the needless destruction of acres of scarce
forestry), various means are provided by which the
user can
view a document without the aid of a laserprinter. The main machines
within the department offer at least one form of previewing
documents.