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:
Jul. 28, 2015
Filed:
Aug. 24, 2009
Takahiro Nakase, Moriya, JP;
Takahiro Nakase, Moriya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes first and second image forming devices each including a rotatable drum, a charging device, an exposure device, and a developing device, each of the image forming devices being configured to form an image on a sheet; a gradation pattern forming device for forming a first gradation pattern on a sheet by the first image forming device and forming a second gradation pattern on the sheet by the second image forming device; a density detecting device for detecting a density of the gradation patterns; a correcting device for correcting an image forming condition of each of the image forming devices; and a potential detecting device, selectively provided to the first image forming device, capable of detecting potential in order to adjust the potential of the drum.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile