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. 27, 2017
Filed:
Apr. 06, 2016
Daisuke Hamada, Kanagawa, JP;
Jun Shiori, Kanagawa, JP;
Hideo Yoshizawa, Kanagawa, JP;
Shingo Kuboki, Kanagawa, JP;
Takahiro Adachi, Kanagawa, JP;
Daisuke Hamada, Kanagawa, JP;
Jun Shiori, Kanagawa, JP;
Hideo Yoshizawa, Kanagawa, JP;
Shingo Kuboki, Kanagawa, JP;
Takahiro Adachi, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A developing device includes a casing having an opening, the casing to contain developer, and a developer bearer including a magnetized range to cause developer to stand on end on a surface of the developer bearer and an end range outside the magnetized range in a longitudinal direction of the developer bearer. The developer bearer is disposed in the casing and partly exposed from the opening with a casing gap secured between the surface of the developer bearer and an inner face of the casing. The developer bearer generates, by rotation, sucked-in airflow to collect a floating toner from the opening into the casing, and the casing gap is smaller in the end range than the magnetized range.