Page 125 - 2015 PIM Buyers Guide .pdf
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Graphic Communications Terms Glossary
Calibration CMYK
A process by which a scanner, monitor or output device is adjusted to Abbreviation for cyan, magenta, yellow and key (black), the four
provide a more accurate display and reproduction of images. process colors.
Caliper Coated Paper
The thickness of paper, usually expressed in thousandths of an inch Paper with a coating of clay or other substances that improves
(mils). Also, a device on a sheetfed press that detects double sheets or reflectivity and ink holdout.
on a binding machine that detects missing signatures or inserts. Collate
Callout In binding, the gathering of sheets or signatures.
A portion of text, usually duplicated from accompanying text, Color Balance
enlarged, and set off in quotes and/or a box to draw attention to what Maintaining the ratio of cyan, magenta and yellow ink to produce a
surrounds it. picture with the desired color and without an unwanted color cast or
Case Bind color bias.
To bind using glue to hold signatures to a case made of binder board Color Bars
covered with fabric, plastic or leather. Also called cloth edition, hard The color strip on proofs that is used as a guide for the printer in
bind or hard cover. determining the amount and density of ink needed.
Cast Coated Paper Color Cast
Paper dried under pressure against a heated, polished cylinder to Discoloration of an entire image or portion of an image caused by an
produce a high-gloss enamel finish. overabundance of one color.
CD-ROM Color Correction
Compact disk–read only memory. A laser-encoded optical storage disk The deliberate adjustment of one or more colors to achieve a
that can store 650 Megabytes to over 1 Gigabyte. desired result. With inks, process colors are not pure colors; each
CEPS is contaminated with the other two colors and has a hue error that
Color Electronic Prepress System. requires compensation in the separation images.
Chalking Color Fidelity
Refers to improper drying of ink. Pigments dust off because ink has How well a printed piece matches theoriginal.
been absorbed too rapidly into the paper. Color Management Systems
Character Generation Electronic characterization, calibration and control systems that
Constructing typographic images electronically as a series of dots, help to assure color consistency and accuracy throughout the print
lines, or pixels on the screen of a cathode-ray tube (CRT). production process from scanning through previewing on screen and
Character Recognition proofing to reproduction on press.
The function of systems that automatically read or recognize typed, Color Reference
printed, or handwritten characters or symbols and convert them to A set of process inks printed on standard paper and used for color
machine language for processing and storing in electronic systems. See control.
also: optical character recognition. Color Separations
Chill Rolls The four-color negatives or positives which are the result of changing
On a web offset press, the section located after the drying oven where full color photos or art into the four process colors (yellow, magenta,
heatset inks are cooled below their setting temperature. cyan and black) by the use of filters.
Choke Color Sequence
A slight size reduction of an opening into which an image will print. The order in which the four-color process inks are printed on the
Chopper Fold plate.
Conveying a signature from the first parallel fold in a horizontal Colorimeter
plane, spine forward, until it passes under a reciprocating blade that An instrument for measuring color the way the eye sees it.
forces it down between folding rollers to complete the fold. Comb Bind
Chroma A binding that inserts the teeth of a flexible plastic comb through
The attribute of color that specifies its amount of saturation or holes punched along the edge of the paper.
strength. Combination Folder
CIE A bindery machine or in-line finishing component of a web press that
International Commission on Illumination. A standards institute incorporates the characteristic of knife and buckle folders.
most well known in the graphic arts for its work in color space Composite File
definition. A PostScript file that represents color pages containing picture
Cloning elements specified in terms of RGB (red, green and blue) color space
A function on a CEPS used to duplicate a pixel or many pixels in as opposed to black and white “gray level” pages which represent
another area of a picture. It can be used to add or remove detail. Some separations.
manufacturers call this function “pixel swopping.” Composite Proofs
Closed Loop Single test sheet showing position and color of all elements as stripped
A process in which all control functions have been automated up.
Including sensing output errors and correcting the input to
compensate for the error.
124 \124 2015 PIM Print Buyers Guide—www.pimw.org
