Glossary of Terms - O
For high-volume reproduction -- utilizes three rotating drumsa plate cylinder, a blanket cylinder, and an impression cylinder. The printing plate is wrapped around the plate cylinder, inked and dampened. The plate image is transferred, or offset, onto the blanket cylinder. Paper passes between the blanket cylinder and the impression cylinder, and the image is transferred onto the paper.
A term used to describe the characteristic of an overlapping foreground element allowing a background element to print in the same area. Overprint is the opposite of knockout. The overprint function is activated on an element by element basis in illustration software and can be selectively applied to the line and/or the fill of the object.