Patent ID: 8649053
Filing Date: 2014-02-11
Classification: B41C

Abstract:
1. A printing relief plate producing apparatus for producing a printing relief plate having a plurality of halftone dot convexities disposed on a surface of a printing plate material, for printing halftone dots on a print medium by transferring ink to the print medium, comprising: a binary image data generator for generating binary image data based on multivalued image data representative of a printed image; a height data generator for generating height data for determining heights of the halftone dot convexities based on the multivalued image data; and an amount-of-exposure data generator for generating amount-of-exposure data associated with amounts of exposure to the printing plate material, based on the height data generated by the height data generator and the binary image data, in order to produce a printing relief plate in which the halftone dot convexities have heights at a plurality of height levels within a screen tint region, which is formed based on the binary image data generated by the binary image data generator.