作者: Frank G. Pensavecchia , John F. Kline , Thomas E. Lewis , John P. Gardiner , Richard A. Williams
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摘要: Apparatus and methods for imaging lithographic plates using laser devices that emit in the near-infrared region, suitable with apparatus methods. Laser output either ablates one or more plate layers physically transforms a surface layer, case resulting an imagewise pattern of features on plate. The image exhibit affinity ink ink-abhesive fluid differs from unexposed areas.