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. 14, 1992
Filed:
Jun. 18, 1990
Susumu Owada, Hino, JP;
Katsuhiro Shukuri, Hachioji, JP;
Yutaka Miyasaka, Hachioji, JP;
Masayuki Enomoto, Hachioji, JP;
Konica Corporation, Tokyo, JP;
Abstract
The invention provides an apparatus for developing an electrostatic latent image on a photoreceptor with developer. In the apparatus, there are provided a housing having an open end facing the photoreceptor; a developing device including a sleeve, disposed in the housing in the vicinity of the open end, for supplying developer onto the photoreceptor through the open end; feeder, disposed in the housing at a position further from the open end than the sleeve, for feeding developer to the sleeve; a ridge-like protrusion, provided on a floor of the housing at a position beneath the sleeve, for preventing developer fed by the feeder from passing through between the sleeve and the floor.