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. 17, 2025
Filed:
Jan. 16, 2024
Oki Electric Industry Co., Ltd., Tokyo, JP;
Shingo Shimada, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
An image formation unit according to an embodiment may include: an image formation part with a developer reception port; a developer cartridge including: a developer storage section with a developer supply port; a shutter movable between an open position and a closed position; a lock engagement member; and an operation part configured to be operated to move the shutter and rotate the lock engagement member. When the shutter moves from the open position to the closed position that closes the developer supply port and the lock engagement member rotates in conjunction with movement of the operation part, the lock engagement member is engaged with the image formation part to separate the developer cartridge from a peripheral portion of the developer reception port.