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. 22, 2015
Filed:
Jun. 13, 2014
Kohta Sakaya, Hyogo, JP;
Kohta Sakaya, Hyogo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A developing device includes a developer container, a developer bearer, a partition to divide an interior of the developer container into a first compartment to which developer is supplied and a second compartment in which the developer bearer is disposed, main communication openings provided at both ends of the partition, a sub-communication opening provided in an intermediate portion of the partition, developer conveyance members provided in the first compartment and the second compartment to circulate developer between the first compartment and the second compartment, and a developer amount detector to detect an amount of developer in a detection area positioned in the first compartment and adjacent to the sub-communication opening.