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:
Feb. 28, 2012
Filed:
Jul. 13, 2009
Shuichi Akedo, Osaka, JP;
Shuichi Akedo, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A developing device includes: a developing vessel for storing a developer D containing a toner and a magnetic carrier; a first conveying passage for conveying the developer; a first conveying member provided in the first conveying passage for agitating and conveying the developer in a predetermined direction; a developing roller; a toner supply port for supplying toner to the first conveying passage; and an electromagnet arranged at the outer periphery of the toner supply port, and is constructed such that the toner supply port is formed over the first conveying member and the electromagnet intermittently attracts the developer residing under the toner supply port.