Glossary of Printing Terms

O

Offset Plates - A method in which the plate or cylinder transfers an ink image to an offset or transfer roller, which then transfers the image to stock.

Opacity - term used to describe the degree to which paper will show print through.

Orphan - line of type on its own at the top or bottom of a page.

Overs - additional paper required to compensate for spoilage in printing. Also used to refer to a quantity produced above the number of copies ordered.