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:
Apr. 28, 2026
Filed:
May. 03, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
Mikihiko Hamada, Kanagawa, JP;
Shuichi Tetsuno, Kanagawa, JP;
Toshihiko Takayama, Kanagawa, JP;
Hiroko Katagiri, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes an image bearing member, a charging unit, a developing unit, a transfer unit, and a brush member arranged to be in contact with the image bearing member at a position downstream of a transfer portion and upstream of a charging portion in a direction of rotation of the image bearing member. The brush member includes a base body and a filament portion that is supported by the base body and that is configured to come into contact with the image bearing member. 50% or more of filaments of the filament portion are crimped yarn. The filaments of the crimped yarn are arranged in a dispersed manner over an entire range of the filament portion in the direction of rotation of the image bearing member.