A measurement, which equal the number of dots or lines per inch on a halftone screen.

The system where a color image is classified into different color values (magenta, cyan, black and yellow or CMYK) by the use of filters and screens or digitally with a software program and then transferred to printing plates as well as printed on a printing press, reproducing the original color image.

In a multi-page document, the numbering of individual pages.

Paper that is used in the press set-up process before the printing run actually begins. Or the process of establishing press or bindery equipment to produce a specific product, including setting paper size, image alignment, fold sizes, ink density, etc., In preparation for the actual production run.

Lines that are drawn on artwork, which indicate the exact placement, size and shape of elements including halftones, illustrations, etc.

Using small dots to make the impression of a continuous-tone image. The effect is accomplished by varying the dot size and the number of dots per square inch.

The registration of the unlike colors on a printed sheet.

Color separation data is stored digitally as well as then exposed to color photographic paper producing a picture of the final product before it is actually printed with ink.

Binding a stack of paper together by introducing the teeth of a flexible plastic comb into holes punched along one of the edges. Usually used for catalogs, reports and manuals.

Lines that seem on laid paper as a result of the wires of the papermaking machine.