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:
May. 25, 2021
Filed:
Dec. 02, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Tomoyuki Sakamaki, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A developing apparatus includes a developer container to accommodate a developer including toner and carrier, and a conveyance screw having a helical blade spirally formed on a rotation shaft to convey the developer. The developer container has a developer discharge port at a position facing the helical blade to discharge the developer from the developer container, wherein the helical blade rotates to direct from below to above in a vertical direction at a position facing the developer discharge port. The developer discharge port has a lower edge in the vertical direction, with the lower edge having a region downstream in a developer conveyance direction from a lowermost position in the lower edge in the vertical direction, and the region in a position above the lowermost position in the vertical direction, wherein the region inclines upward as the lower edge goes downstream in the developer conveyance direction.