A preliminary sheet run through a printing press at the beginning of a job to evaluate the positioning of the image on the sheet (called the lay). Improper register or line-up may require a repositioning of the plate on the plate cylinder.
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A preliminary sheet run through a printing press at the beginning of a job to evaluate the positioning of the image on the sheet (called the lay). Improper register or line-up may require a repositioning of the plate on the plate cylinder.