Contract Proof is a proof supplied to a printer to document the color results expected on press. Cromalin A color proofing system that uses powdered pigments instead of ink. Crop Marks Printed lines used for final trimming, showing the trim size of the final printed piece. CristalRaster is a stochastic or frequency modulation screening technology available on PostScript RlPs from Agfa. Crossover is a color or image that crosses the gutter of a spread in a finished book.
Density is the degree of opacity of an image on paper or film.
Digital Color Proof is a color proof created from a digital file rather than from film separations. A printing artifact in which dots print larger than desired, causing changes in colors or tones. A measure of the output resolution produced by printers, imagesetters, or monitors. Drum Imagesetter is a imagesetter in which the film or paper medium is wrapped around a circular drum during exposure. Drum Scanner is a scanner in which the original is wrapped around a circular drum during the scanning process.