Epson ES-800C, Руководство пользователя

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Electronic color printers use laser, ink jet, or other
technologies to produce color or gray scale images that
range from coarsely patterned to nearly photographic
(often called continuous tone) quality. It is best to see
samples from a color printer before you decide to use it.
The upper left and lower left squares on the cover of the
Color Image Sumner booklet give you an idea of the different
print qualities you might get from electronic color printers.
These printers are usually used for small quantities of color
images or for preliminary proofs of images that will be
printed on a printing press.
Printing
presses are for high quality and high volume work.
You scan and edit your images and then send the files to a
service bureau or printing company, which uses high
resolution phototypesetters (also called imagesetters) like
the Linotronic
TM
300 for high quality text and gray-scale
images. For full-color images, you scan in color and then
use your image editing software to manipulate the image
and produce
color separation
files. If you plan to do this, see
the guidelines below on resolution and then follow the
instructions in your software manual for making
separations. Your service bureau or printing company
should also provide helpful information.
File size
In gray scale and color, use the lowest resolution that gives
acceptable quality for your printing method because high
resolutions mean large files. A letter-size full-color scan uses as
much as 25 megabytes (MB) of disk space.
Large files use up your computer and hard disk memory; they
take longer to process, to print, or to transmit by modem; and
they are more difficult to save to a disk for sending to a service
bureau or printing company.
Scanner Basics 3-9