The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 2000
Filed:
Dec. 21, 1998
Kazuhiko Arai, Nakai-machi, JP;
Kiyotaka Ishikawa, Nakai-machi, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
In an image forming apparatus which represents gradation of an image by using a halftone screen structure, and which transfers and fixes the image onto a print sheet by using an intermediate transfer body, where a number of protruding portions are provided with an approximately uniform distribution, the degradation of image quality due to a moire fringe pattern produced by the halftone screen structure and the distribution of the protruding portions of the intermediate transfer body is reduced. At least one of the distribution of the protruding portions and the structure of the halftone representation screen is controlled such that the pitch of a moire fringe pattern produced by the protruding portions 51 and a toner image in the highest lightness color is not longer than the pitches of moire fringe patterns produced by the protruding portions and toner images in other colors, or the pitch of a moire fringe pattern produced by the protruding portions and a toner image in the lowest lightness color is not shorter than the pitches of moire fringe patterns produced by the protruding portions and toner images in other colors, or the pitch of moire fringe patterns is 0.5 mm or shorter.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile