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:
Sep. 10, 1996
Filed:
Oct. 17, 1994
Applicant:
Inventors:
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355298 ;
Abstract
An image forming apparatus of the type collecting a toner remaining on the surface of an image carrier after image transfer and returning it to a developing unit to use it again. The apparatus separates the toner from paper dust and other impurities before returning the toner to the developing unit on the basis of differences in charge, weight and volume between the toner and the impurities. The toner is returned via an eletrostatic conveyor.