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:
Dec. 03, 2024
Filed:
Jul. 06, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Noriyuki Komatsu, Numazu, JP;
Masaki Ojima, Mishima, JP;
Daisuke Abe, Suntou-gun, JP;
Tomonori Mori, Numazu, JP;
Tadayuki Tsuda, Susono, JP;
Tetsuya Numata, Suntou-gun, JP;
Naoya Asanuma, Susono, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A cartridge includes a drum unit and a development unit. The drum unit includes a photosensitive drum, a frame, a transfer roller, and a cleaning member. The development unit includes a development roller, and a memory. The cleaning member is configured to come into contact with the photosensitive drum at a region between a development nip portion and a transfer nip portion in a circumferential direction of the photosensitive drum and at an end portion of the photosensitive drum in a direction of the rotational axis. The frame has an exposing hole through which the memory is exposed from the frame, and a recessed portion that is adjacent to the exposing hole in the direction of the rotational axis, and stores foreign matters removed from the photosensitive drum by the cleaning member.