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:
Nov. 13, 2018
Filed:
Mar. 23, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Osamu Ariizumi, Matsudo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A developing apparatus includes a first screw disposed within a first chamber and conveying developer in a first direction, a second screw disposed within a second chamber and having a conveyance portion conveying the developer in a second direction opposite to the first direction and a return portion provided downstream of a first communication port in a first wall dividing the first and second chambers. A discharge portion in the second chamber, downstream of the return portion, discharges the developer out of the second chamber, and a second wall through which a third communication port is disposed upstream of the discharge portion is defined to deliver the developer from the second chamber to the first chamber. The second wall faces at least a part of the return portion in a view from a horizontal direction such that a lower end of the third communication port is located above a lower end of the first communication port.