Any copy which can be reproduced without the use of a halftone screen.

When printed ink colors become lighter or less dense after they have dried on the paper.

Assembling sheets of paper as well as signatures into their proper sequence.

A photographic looking color print made by heating dyes on a substrate instead of applying inks. Frequently used for proofing.

A necessary part of the offset printing process whereby rollers distribute a solution to the plate, which covers the non-printing area of the plate, repelling ink in those fields. Some newer presses use a waterless ink technology, which does not use dampening.

A color trial strip that is printed on the waste part of a press sheet. It assists a press operator to monitor and assure the quality of the printed material relative to ink density, registration as well as dot gain. It can include a Star Target as well, which is designed to detect inking and press problems.

A boldface square or dot that is used before a sentence to emphasize its importance.

How an image on one side of a printed sheet adjusts with the image on the other side.

One of the four process colors of ink, or CMYK. Here the Y is for yellow.

Used to describe how many similar pieces can be printed on a larger sheet; two up, four up, etc.