Uncoated paper.Paper that is not clay coated.
Undercolor removal.Technique of making and printing color separations that minimizes amount of cyan, magenta, and yellow ink in shadow areas.
Underrun. Production run of fewer copies than the amount specified.
Up. Printing two up or three up means printing the identical piece twice or three times on one sheet of paper in one impression.
UV coating.Liquid laminate bonded and cured with ultraviolet light.