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. 12, 2022
Filed:
Nov. 11, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Tsukasa Abe, Kanagawa, JP;
Fumihiko Yamaya, Shizuoka, JP;
Mitsuyoshi Arakawa, Tokyo, JP;
Takashi Kuwata, Shizuoka, JP;
Shinichi Ueda, Shizuoka, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A toner conveying apparatus conveying toner used for image forming includes a first conveying portion to convey the toner and having a first screw and a first conveying passage forming member that forms a first conveying space, and a second conveying portion to convey upward the toner and including a second screw and a second conveying passage forming member that forms a second conveying space. The second conveying passage forming member has a connecting port connected to the first conveying passage forming member. The second screw overlaps with the first screw viewed in a direction of a rotational axial line of the first rotation shaft. A cross-sectional area of the first conveying space orthogonal to the direction of the rotation axial line in a second region is smaller than the cross-sectional area of the first conveying space orthogonal to the direction of the rotational axial line in a first region.