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:
Oct. 13, 1998
Filed:
Dec. 29, 1995
Seiji Oka, Yokohama, JP;
Hajime Oyama, Ichikawa, JP;
Yasushi Akiba, Tokyo, JP;
Kiyonori Tsuda, Machida, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A developing machine is provided which includes a supporting case (2); a developing sleeve (4) mounted within the supporting case (2), for carrying a developing agent (3); a magnetic roller (15) mounted within the developing sleeve (4); a projection (5d) for thinning a layer of the developing agent (3) carried on the developing sleeve (4) and regulating the amount of the developing agent (3); a drift portion A having a predetermined capacity, in which the developing agent (3) stopped by the projection (5d) drifts about; a toner containing portion (5b) having a toner supplying opening 5c which faces the developing sleeve (4) and is contiguous to the drift portion A on the upstream side of a direction in which the developing agent (3) on the developing sleeve (4) is carried; a developing agent storage case (5) attachable to and detachable from the supporting case (2), including the developing sleeve (4) and the toner containing portion (5b); and a developing agent retrieving device for a scraping the developing agent (3) lying on the developing sleeve (14) and retrieving the scraped developing agent (3) into the toner containing portion (5b).