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:
Apr. 18, 2006
Filed:
Apr. 14, 2000
Akio Aoki, Tokyo, JP;
Takao Aoki, Abiko, JP;
Kaoru Seto, Chigasaki, JP;
Seiji Sagara, Kawasaki, JP;
Satoshi Shimizu, Ohmiya, JP;
Katsuhiko Nishimura, Yokohama, JP;
Kazuro Yamada, Kawasaki, JP;
Akio Aoki, Tokyo, JP;
Takao Aoki, Abiko, JP;
Kaoru Seto, Chigasaki, JP;
Seiji Sagara, Kawasaki, JP;
Satoshi Shimizu, Ohmiya, JP;
Katsuhiko Nishimura, Yokohama, JP;
Kazuro Yamada, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus and method in which a controller is capable of executing image processing of its own are disclosed. The controller has an RF unit for processing image information, a halftone image processor, a density corrector and a patch generator. The engine includes a modulator corresponding to the RF unit, a halftone image processor different from that of the controller, a density controller, modulator and patch generator corresponding to the halftone processor of the engine, a sensor for sensing the density of formed patches, and a control unit for controlling the density of an image on the basis of a signal from the sensor. The engine sends the controller a signal relating to density control.