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:
Sep. 05, 2017
Filed:
Dec. 29, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image forming apparatus includes a latent image forming unit that forms an electrostatic latent image on an image carrier based on an image signal, a development unit that includes a circulation mechanism that circulates developer in the development unit and develops the electrostatic latent image using the developer, and a detector unit that detects a toner density of the developer in the development unit. A determination unit determines a replenishment amount of toner to the development unit based on the toner density detected by the detector unit, and a replenisher unit replenishes the development unit with toner based on the determined replenishment amount. The determination unit reduces a predetermined ripple that occurs in accordance with a period of circulation of the developer by executing filter processing for reducing the predetermined ripple.