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:
Aug. 11, 2020
Filed:
Jul. 19, 2019
Toshiba Tec Kabushiki Kaisha, Shinagawa-ku, Tokyo, JP;
Masato Ogasawara, Katsushika Tokyo, JP;
TOSHIBA TEC KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A developing device according to an embodiment includes a housing, a developing roller, a gap forming member, and a guide section. The gap forming member forms a first gap between the gap forming member and the developing roller. The gap forming member forms a second gap between the gap forming member and the housing. The second gap includes an upstream side opening on a rotating direction upstream side of the developing roller. The guide section directs an air current discharged from the second gap via the upstream side opening to the first gap. A relation of H/H<5 is satisfied, where His a minimum interval between the developing roller and the gap forming member in the first gap and His a minimum interval between the housing and the gap forming member in the second gap when viewed from an axial direction of the developing roller.