Glossery 2 _ GCM

Contract Proof

The absolutely final proof before starting to print.

Copyright

Right to reproduce copyright-protected material.

Copyright Holder

The person (or persons) who created a work and hold the copyright on it.

Creasing

Creating a fold mark, or crease, to facilitate folding of stiff and thick papers.

Creeping

A folding phenomenon where, as a result of folding the product, the pages are displaced in relation to each other. The creep is compensated for during imposition by adjusting the pages in relation to each other.

CTP

Computer-to-plate, a technique for setting/outputting printing plates in an imagesetter directly from the computer.

Dampening System

The entire system of rollers in an offset printing press that controls the dampening solution supply.

Deadline

The point in time when a contracted job is to be ready or delivered.

Densitometer

An instrument used to measure different printing parameters, such as dot gain and full tone density.

Die-Cutting

A postpress process where printed products are cut into shapes other than rectangular, such as dividers used for binders.

Dot Gain

A measurement of the change in size of the halftone dot from film to print, measured in percent.

DPI

Dots per inch; the number of exposure points per inch, indicating the print resolution of an imagesetter or printer.

Dummy

A test sample of an imposition, a binding, or a complete printed product. It is usually made by hand.

Embossing

Where a relief is required on a print product, embossing is used to raise or lower parts of the paper.

Fiber Direction

The direction in which the majority of the paper fibers are oriented, the same direction as the paper was produced in.

Finishing

Collective name for postpress techniques such as embossing, foiling, laminating, and varnishing.

FM Screen

Frequency-modulated screen. Referred to in this book as a stochastic screen.

Font

A collection of type in a particular typeface stored in a file. Examples of file types for fonts are TrueType and PostScript Type 1.

Gripper Edge

The part of the paper that the printing press or postpress processing machine grabs when the paper is fed into the machine.

Halftone Dot

The smallest unit that a screen consists of. All tones in print, both photographs and illustrations, are based on halftone dots.

Halftone Screen

Used to simulate gray tones in print, usually with dots of different sizes.

Rosettes

A halftone screen phenomenon in which many halftone dots form a circular pattern in the print; it can be perceived as distracting.

Image Carrier

The material that is printed from, such as an offset plate, screen frame, or gravure cylinder.

Imagesetter

A machine that exposes and prints out image carriers.

Imposition

Arranging the pages in a print product according to a special scheme to make print montages the same size as the print sheets. The way the pages are arranged is guided by the postpress processing.

Impression Cylinder

A cylinder in the printing press that presses the paper against the cylinder that transfers the ink to the paper.

Ink Rollers

Collective term for all types of rollers in an ink pyramid.