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:
Feb. 12, 1991
Filed:
Dec. 13, 1988
Akira Yamamoto, Zama, JP;
Takahisa Yamada, Sagamihara, JP;
Tadashi Nishio, Hino, JP;
Kazuo Noda, Tokyo, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes an image carrier rotatably disposed in a main body and having an image carrier surface, a transfer unit for transferring a toner image formed on the image carrier surface to a recording member, and a cleaning blade located in a downstream side of the transfer unit in a rotational direction of the image carrier and scraping a residual toner left on the image carrier surface. The transfer unit is located on a portion of the image carrier such that an imaginary normal extending outward from the image carrier surface is directed upward with respect to a horizontal direction and the transfer unit transfers the toner image to a lower surface of the recording member. The cleaning blade is brought into contact with a downward moving portion of the image carrier which has passed through the transfer unit, at a contact angle of not less than 90.degree. relative to the downstream portion of the carrier in a 'with' contact state, and the residual toner scraped by the cleaning blade is moved downard along an upper surface of the cleaning blade.