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:
Nov. 11, 2014
Filed:
Sep. 01, 2011
Ken Nozawa, Tokyo, JP;
Yukiyoshi Oda, Tokyo, JP;
Ken Nozawa, Tokyo, JP;
Yukiyoshi Oda, Tokyo, JP;
Oki Data Corporation, Tokyo, JP;
Abstract
A developer detection device includes: a rotating member including a first part and a second part being joined to the first part, the first part having a light-blocking section and a light-passing section, the second part temporarily stopping rotating at a rotation position corresponding to a developer upper surface position of developer stored in an accommodating container; a rotation driving member pushing the rotating member in a predetermined rotation direction; and a detecting unit including a light-emitting unit and a light-receiving unit; wherein the rotating member is formed so that when the second part is at a lower position in the accommodating container, the light-passing section is positioned on an optical path from the light-emitting unit to the light-receiving unit.