Glossary of Printing Terms:
Proofing Bars

Color bars are also referred to as color control bars, color control strips, or proofing bars.

Color bars are rows of different colored patches printed in the trim area of the press sheet.

They are used by proofers and press operators to control the trapping, ink density, dot gain, and print contrast of the proof or the printed sheet.

Also See Color Control Strips.

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