Glossary - The Graphic Design: Reference and Specification - page 205

Resolution: The quantification of print
quality using the number of dots per inch
in electronic imaging.

Scum: A thin haze of ink that appears in
on-image areas on a printed sheet. Also
called haze .

Reverse: A white or noncolor image
against a dark, inked, or colored back-
ground.

Separations: Reproducing a color image
by dividing it into four negatives, one each
for cyan, magenta, yellow, and black.

RGB: Stands for red, green, and blue,
additive primary colors that are used to
create a full range of color as projected
light on a computer screen.

Serigraphy: see silk screen

Server: A computer connected to the
Internet that allows pages or sites that
you have placed on it to be called up or
displayed by users browsers. Roll fold: see barrel fold

Rule: A line set as part of typesetting. Sheetfed: A printing process utilizing

sheets of paper rather than rolls.

S Shingling: The allowance made during

page impositioning to compensate for
creep. Also called stair stepping or
progressive margins .

Saddle stitch: A method of binding by
stitching through the centerfold of nested
signatures.

Show through: Areas where an image
printed on one side of a sheet can be
seen on the opposite side. Show through
occurs when the paper is too thin for the
ink application.

Saturation: The degree to which a color is
pure and free of dilution from black, white,
or gray.

Scanner: A device that converts images on
film or paper into digital information.

Shrink-wrap: A method of securely wrap-
ping packages, loose items, or products
in clear plastic film.

Score: To crease or indent paper along a
straight line so it folds more easily and
accurately.

Side stitch: To bind by stapling through
pages along one edge. Also called side
wire .

Screen font: Font that can be viewed on a
computer monitor.

Signature: A printed sheet folded at least
once, possibly many times, to become
part of a book, magazine, or other publica-
tion. Signatures are commonly made up
of four, eight, sixteen, or thirty-two pages.
Also called a form .

Screen printing: see silk screen

Screen ruling: Number of rows or lines
of dots per inch in a screen for making
a screen tint or halftone. Also called line
count , screen frequency , screen size , or
screen value .

Silk screen: A method of printing where
ink is forced through a stencil adhered to
a screen. Also called serigraphy or screen
printing .

Screw and post binding: Binding that
secures pages with a bolt that is inserted
through a drilled hole and secured with a
post on the opposite side.