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. 21, 2026
Filed:
Feb. 04, 2025
Yuuki Tsuchiya, Kanagawa, JP;
Yuuki Tsuchiya, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A developing device contains a developer and includes a developing roller that bears the developer and a developer supplying rotator that is disposed opposite the developing roller. The developer supplying rotator rotates in a predetermined direction to supply the developer onto the developing roller. A compartment accommodates the developer supplying rotator. A first developing side plate supports the developing roller rotatably. A second developing side plate supports the developer supplying rotator rotatably. A sheet member separates the developing roller from the developer supplying rotator. The sheet member forms an enclosed space that contains the developer in the compartment. The sheet member is removed from the developing device. The first developing side plate has a sheet opening that is disposed opposite the second developing side plate. A part of the sheet member protrudes toward an outside of the developing device through the sheet opening.