Xerox P8EX Spire CXP8000 Color Server - User Guide - Page 447

Glossary Saturation Screen angle Screen rulings SEF Shadows Shingling Signature Solid Spectrophotometer Spot color Step and repeat 433 The strength of a color. The angle of rows of halftone dots represented in degrees. During output of films for reproduction, the dot arrangement of each separation film is placed at a distinct and different angle to the other separations. See also Moiré. The number of rows of printing dots per inch on a halftone film. A 150lpi-screen ruling provides much better quality than 65lpi. A printer page orientation, where pages are delivered short end first. The darkest part of an image (original and reproduction) having densities near to maximum density. In the reproduction, shadows are printed with dot areas between 80% and 100% See also Highlights and Midtones. A procedure that moves the image area of a page toward the direction specified, usually towards the binding, in order to compensate for creep. Sheet of printed pages which when folded becomes part of the publication. The point in the picture printed with a dot area of 100%. See also Highlights, Midtones and Shadows. Spectrophotometer (X-Rite DTP41), which is a 24 band color measurement instrument that reports densitometric, colorimetric and spectral data. An additional separation (fifth, or more) that is used with special inks to achieve difficult color combinations, such as gold, or chocolate brown. Spot color is sometimes used by graphic artists to define special corporate colors, for example, for company logos. On the Spire CXP8000 Color Server, spot colors are tanslated into CMYK values using a dictionary, that can be edited to adjust CMYK values. The procedure of copying the same image by stepping it in position both horizontally and vertically according to a predetermined layout.