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:
Jul. 07, 2020
Filed:
Sep. 19, 2019
Yuki Oshikawa, Kanagawa, JP;
Yoshihiro Fujiwara, Kanagawa, JP;
Naohiro Kawashima, Kanagawa, JP;
Ryusuke Mase, Kanagawa, JP;
Yuuki Tsuchiya, Tokyo, JP;
Yuki Oshikawa, Kanagawa, JP;
Yoshihiro Fujiwara, Kanagawa, JP;
Naohiro Kawashima, Kanagawa, JP;
Ryusuke Mase, Kanagawa, JP;
Yuuki Tsuchiya, Tokyo, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A developing device includes a developing roller, a cover to cover the developing roller from above the developing roller, a filter to cover a vent of the cover to filter air and collect toner passing through the vent, and a pressing member engaged with the cover in which the filter is installed. The cover includes a projecting support to support the filter. The pressing member holds the filter between the pressing member and the cover. The projecting support is projected from one end toward the other end of the vent in a transverse direction of the vent at a part of the cover in a longitudinal direction of the developing roller to block the vent, and cantilevered on the one end. A gap is provided between a tip of the projecting support and an inner edge of the cover on the other end.