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. 19, 1988
Filed:
Nov. 15, 1984
Applicant:
Inventors:
Nobutoshi Yoshida, Yokohama, JP;
Hisaaki Senba, Tokyo, JP;
Keishi Ohsawa, Kawasaki, JP;
Takashi Hino, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 15 ; 118652 ; 430125 ;
Abstract
A cleaning device which ensures perfect cleaning of the surface of an image bearing member by a cleaning device for cleaning toner remaining on the surface of the image bearing member and a cleaning roller disposed upstream of the cleaning device with respect to the direction of movement of the image bearing member and rotatable while being in contact with the surface of the image bearing member, the cleaning roller having an elastic outer layer of high hardness and an elastic inner layer of lower hardness than the outer layer.