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:
Apr. 02, 2013
Filed:
Sep. 29, 2010
Kenjiro Nishiwaki, Aichi, JP;
Kenjiro Nishiwaki, Aichi, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, Aichi, JP;
Abstract
A development agent supply device includes a casing having an opening, a first development agent storage section, and a second development agent storage section, a development agent holding member housed in the casing such that a development agent holding surface thereof faces a developer-supplied device via the opening, a first electric-field transfer board that transfers development agent with a traveling-wave electric field along a down-facing development agent transfer surface in a predetermined direction from the first development agent storage section to the opening and faces the development agent holding surface at a downstream end in the predetermined direction, and a development agent retrieving unit that agitates development agent stored in the second development agent storage section and inadequately-charged development agent falling from the development agent transfer surface and conveys the development agent to the first development agent storage section.