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:
Aug. 17, 1999
Filed:
Dec. 26, 1996
Akihiko Uchiyama, Yokohama, JP;
Hiroshi Sasame, Yokohama, JP;
Tatsuya Kobayashi, Sohka, JP;
Youichirou Maebashi, Yokohama, JP;
Canon Kabushki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes an image bearing member electrostatic latent image forming device for forming an electrostatic latent image on the image bearing member, the image forming device forming, on the image bearing member, an electrostatic latent image usable for controlling image formation. A developing device is provided for developing an electrostatic latent image on the image bearing member, a density difference detecting device is provided for detecting a density difference in an image for the control developed by the developing device, and a control device is provided for controlling a developing condition of the developing device on the basis of an output of the density difference detecting device.