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:
Jan. 19, 1982
Filed:
Apr. 08, 1980
Applicant:
Inventors:
Manabu Mochizuki, Yokohama, JP;
Yukihiro Ohno, Tokyo, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ; G03G / ;
U.S. Cl.
CPC ...
430125 ; 430118 ; 430126 ; 118652 ; 118661 ;
Abstract
An electrophotographic process and apparatus of two revolutions/copy, wet developing type is provided in which a corona discharger provides the combined functions of a charging and an image transfer, and in which a combined developing and cleaning unit is used. The unit includes a combined developing and cleaning roller which is driven for rotation in different directions and at different speeds during the developing and the cleaning step.