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. 05, 1999
Filed:
Oct. 21, 1997
Chang-Soo Rhee, Suwon, KR;
SamSung Electronics Co., Ltd., Suwon, KR;
Abstract
A developing unit for an electrophotographic apparatus that uses a cleaning roll, oppositely charged from the toner remaining on the developing roller, to clean a developing roller after a latent electrostatic image has been developed into a latent toner image. The ink is removed from the developing roller and mixed with fresh toner from the toner cartridge to maintain a uniform charge throughout the toner that is applied to the developing roller and to increase the quality of resolution obtained when printing for an extended period of time.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile