C1S: (Coated One Side) Describes a paper
stock that is coated on one side.
CC1S: (Cast Coated One Side) Describes a
paper stock that has a high gloss coating on one side.
C2S: (Coated Two Sides)
CC2S: (Cast Coated Two Sides)
Calendaring: A buffering process completed
during paper manufacturing that polishes the sheet surface making
it less prone to printing production difficulties.
Calibration Bars: Are used to control screen
percentages for printing and proofing. Usually varying shades of
CMYK, from 0% - 100%, located on signature or press sheet.
Camera Ready Artwork: Paste up artwork
(mechanical) in which all type is set and sized correctly and
pasted up in correct position. All corrections have been made,
all color breaks have been made and is complete. Does not need to
have traps and/or reverses built in, but should include keylines
and F.P.O. prints for photographs.
Capstan Design: In imagesetters, a system for
moving the film or paper past the laser. The alternative is the
drum design, in which paper or film is wrapped around a rotating
Center Marks: Press sheet marks that appear
in the center of the plate. Used to position the printed area on
Chokes and Spreads: Overlap of overprinting
colors to avoid color or white fringes or borders around certain
detail. See Trap.
CMYK: Cyan, Magenta, yellow and Black. The
four process colors that are used in four-color printed
reproduction. In desktop publishing it's one of the color models;
the others being HSB, PMS and RGB.
Color Key: Color overlays made from the film
separations. Used to proof color and balance.
Color Model: A way of describing color. (i.e.
CMYK, HSB, PMS and RGB)
Color Proof: The final corrected proofs
either on a color laser printer, Color Key or Match Print.
Color Separation: The process of turning a
digital file into the necessary primary printing components (CMYK
or spot colors).
Commercial Registration: Color printing on
which misregistration is allowable within +/- one row of dots.
Composite: (Composite Proof) The black and
white proof of a publication or, for a color publication, one
sheet per publication page (rather than separate sheets for each
overlay) printed on a color printer.
Contact Print: A photographic same size copy
made by exposure of a sensitized emulsion in contact with the
transparency, negative or positive with the exposing light
passing through the master image.
Contact Screen: A photographically-made
halftone screen having a dot structure of a graded density, used
in a vacuum contact situation with a high contrast (litho) frame.
Continuous Tone: A photographic image which
has not been screened and contains gradient tones from highlight
to shadow. The original can be either black and white or color
and contain no dots.
Contrast: The tonal gradation between
highlights, middletones, and shadows in an original or a
reproduction. The visual relationship of the original to the
reproduction when white to black ranges.
Control Strips: Series of color bars and
percent tints placed just outside the final image area; used to
help maintain consistency during print runs.
Copy: Any furnished material that is to be
used in the production of printing.
Creep: The slight but cumulative extension of
the edges of each inserted spread or signature beyond the edges
of the one that encloses it in a saddle stitch bind.
Crop: In order to eliminate portions of the
copy, photograph or artwork, cropmarks are placed on the original
or overlay to indicate which portions are to be eliminated.
Crop Marks: Fine lines on a press-sheet used
to trim the sheet to final size.
Cyan: One of the colored inks used in
four-color printing. One of the subtractive process colors;
reflects blue green and absorbs red.