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:
Mar. 20, 2012
Filed:
Jun. 03, 2009
Takuya Okada, Toyokawa, JP;
Takuya Sasaki, Toyokawa, JP;
Hokuto Hatano, Toyokawa, JP;
Hiroshi Goto, Okazaki, JP;
Junji Murauchi, Toyokawa, JP;
Takuya Okada, Toyokawa, JP;
Takuya Sasaki, Toyokawa, JP;
Hokuto Hatano, Toyokawa, JP;
Hiroshi Goto, Okazaki, JP;
Junji Murauchi, Toyokawa, JP;
Konica Minolta Business Technologies, Inc., Chiyoda-Ku, Tokyo, JP;
Abstract
A developing device including a housing, toner a developing roller, and a feed roller in pressure contact with the developing roller so as to form a nip portion and which feeds toner to the developing roller. The developing device including a feed stabilizing member contacting a lower portion of the feed roller so as to form a second nip portion and restricting toner feed quantity. The feed stabilizing member extending from a generally triangular-shaped first region below the first nip portion up to one side of the nip portion opposite to the first region side. The developing device further including a toner circulation path for pushing back toner from the first region through below the feed stabilizing member to a second region on the one side opposite to the first region side with an aid of pressure of toner that tends to accumulate in the first region.