Digital printing plate-making method and apparatus
OwnerSadao Ohsawa, Yusuke Nakazawa +2inventors
InventorsSadao Ohsawa, Yusuke Nakazawa, Kazuo Ishii, Eiichi Kato
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Abstract
A plate-making method for forming an image based on signals of image data directly on a printing plate precursor by an ink jet recording method in which oil-based ink is ejected utilizing an electrostatic field and fixing the image, thereby preparing a printing plate. A plate-making apparatus of the invention includes an image former for forming an image based on signals of image data directly on a printing plate precursor and an image fixer for fixing the image formed by the image-former to prepare a printing plate, wherein the image-former is an ink jet recording device which ejects oil-based ink utilizing an electrostatic field from an ejection head.
Claims23
A plate-making method comprising the steps of forming an image based on signals of image data directly on a printing plate precursor by an ink jet recording method in which oil-based ink is ejected utilizing an electrostatic field, and fixing the image, thereby forming a printing plate.
A plate-making apparatus comprising:
- an image former which forms an image based on signals of image data directly on a printing plate precursor;
- and
- an image fixer which fixes the image formed by the image former to thereby prepare a printing plate;
- wherein the image former comprises an ink jet recording device which ejects oil-based ink utilizing an electrostatic field from an ejection head.
Dependencies are inferred from the claim text.