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:
Dec. 28, 2021
Filed:
May. 17, 2021
Kyocera Document Solutions Inc., Osaka, JP;
Asami Sasaki, Osaka, JP;
Akira Matayoshi, Osaka, JP;
Norio Kubo, Osaka, JP;
Koji Suenami, Osaka, JP;
Yuji Toyota, Osaka, JP;
Tamotsu Shimizu, Osaka, JP;
Masashi Fujishima, Osaka, JP;
Yasuhiro Tauchi, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka, JP;
Abstract
A developing device includes a developer container, a developer carrier, and first and second members for stirring/conveying. The developer container includes a first partition wall between first and second chambers, a communication portion through which those chambers communicate at opposite ends of the first partition wall, a developer supply port, and a developer discharge portion. The first member stirs and conveys developer in the first chamber in a first direction. The second member stirs and conveys developer in the second chamber in a second direction and includes a regulating portion and a discharging blade. The developer container includes a second partition wall between the first chamber and the regulating portion. The gap from the upper end of the second partition wall to the inner surface of the developer container is larger than the gap thereto from the upper ends of a first helical blade and the regulating portion.