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:
Oct. 27, 2026
Filed:
Aug. 08, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
Yuta Okuyama, Chiba, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image forming apparatus includes a carrier collection device including a rotatable collection roller disposed facing an image carrying member, a magnet non-rotatably disposed inside the sleeve, and a conductor member disposed facing the collection roller. The collection device being configured to collect carrier on the image carrying member. The apparatus includes a first bias application unit configured to apply a first bias obtained by superimposing a direct-current voltage and an alternating-current voltage, to the collection roller, and a second bias application unit configured to apply a second bias including a direct-current voltage, to the conductor member. During image forming operation, an alternating-current electric field is formed between the collection roller to which the first bias is applied and the conductor member to which the second bias is applied.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile