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:
Aug. 12, 1997
Filed:
Sep. 12, 1995
Tatsuya Kitajima, Tokyo, JP;
Natsuki Tachibana, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kanagawa-ken, JP;
Abstract
A copying machine comprises a cleaning device for cleaning toner remaining on the surface of a photoconductive drum, and a sensor for detecting image density of an image to be formed on the drum. The cleaning device includes a cleaning blade arranged to contact with drum, and an auxiliary cleaning mechanism arranged upstream the cleaning blade with respect to the rotating direction of the drum. The auxiliary cleaning mechanism has variable cleaning capacity. The cleaning capacity of the auxiliary cleaning mechanism is varied by a control unit in accordance with the image density detected by the sensor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile