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. 29, 1997
Filed:
Feb. 10, 1995
Masami Izumizaki, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes a developer container comprising toner particles and carrier particles. A developer carrying member is disposed in the developer container, for carrying the developer to a developing zone where an electrostatic latent image is developed. A first toner container contains toner particles, and a first supply mechanism supplies toner particles from the first toner container to the developer container in response to a toner supply signal, to maintain a ratio of toner particles to carrier particles constant. A second toner container contains toner particles, and a second supply mechanism supplies toner particles from the second toner container to the first toner container, to maintain the amount of toner particles in the first container constant.