A typesetting
device that produces very
high-resolution output on paper or film. Imagesetters are too expensive for homes or most offices, but you can obtain imagesetter output by bringing a
PostScript file to a
service bureau. One reason that PostScript has become the
standard for
desktop publishing is that nearly all imagesetters
support it. This means that you can produce drafts on an inexpensive PostScript
laser printer with high assurance that the final output from an imagesetter will look the same, but with higher resolution (up to 3,540
dots per inch).