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.

Date of Patent:
Sep. 02, 2025

Filed:

Jul. 26, 2024
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Takahito Ueno, Mishima, JP;

Shigeo Miyabe, Numazu, JP;

Masanari Morioka, Numazu, JP;

Masato Hisano, Susono, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 21/18 (2006.01); G03G 15/00 (2006.01); G03G 21/16 (2006.01);
U.S. Cl.
CPC ...
G03G 21/1842 (2013.01); G03G 15/751 (2013.01); G03G 15/757 (2013.01); G03G 21/1647 (2013.01); G03G 21/1814 (2013.01); G03G 21/1817 (2013.01); G03G 21/1821 (2013.01); G03G 21/185 (2013.01); G03G 21/1853 (2013.01); G03G 21/1857 (2013.01); G03G 21/186 (2013.01); G03G 2221/1657 (2013.01);
Abstract

A cartridge includes a photosensitive drum having a rotational axis about which the photosensitive drum is rotatable. The cartridge also includes a developing roller having a rotational axis about which the developing roller is rotatable. A developing frame rotatably supports the developing roller. A drum flange is connected to an end of the photosensitive drum, with the drum flange including an inner surface facing the rotational axis of the photosensitive drum and a hollow portion inside of the drum flange. A casing including a bearing member rotatably supports the photosensitive drum.


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