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:
Jun. 02, 2020
Filed:
Feb. 22, 2019
Fuji Xerox Co., Ltd., Tokyo, JP;
Nao Kato, Kanagawa, JP;
Masayuki Shimoda, Kanagawa, JP;
FUJI XEROX CO., LTD., Tokyo, JP;
Abstract
A developing device includes a first developer transport path, called as first path hereinafter; a first transport screw that transports a developer in the first path; a first conveyance roller that is thicker than a shaft of the first transport screw, attracts by magnetic force the developer at a downstream end portion of a second developer transport path arranged next to the first path, and conveys the developer to an upper portion located upstream of the first path; a first scraping wall that scrapes and sends the attracted developer; and a first guide columnar body that is adjacent to the first conveyance roller, has a peripheral surface continuous to the first conveyance roller, receives, using the peripheral surface, and guides the sent developer to an upstream end portion of the first path, and has a length that the guided developer is not attracted by the magnetic force.