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. 09, 2011
Filed:
Feb. 27, 2008
Shinichi Ueda, Mishima, JP;
Kazushi Ino, Suntou-gun, JP;
Tamotsu Kaneko, Suntou-gun, JP;
Satoshi Murasaki, Suntou-gun, JP;
Ken-ichi Tomita, Mishima, JP;
Shinichi Ueda, Mishima, JP;
Kazushi Ino, Suntou-gun, JP;
Tamotsu Kaneko, Suntou-gun, JP;
Satoshi Murasaki, Suntou-gun, JP;
Ken-ichi Tomita, Mishima, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes a photosensitive drum, an optical unit provided below the photosensitive drum and including a cover glass for transmitting light emitted toward the photosensitive drum, and a cleaning member configured to clean a surface of the cover glass. The cleaning member includes a cleaning sheet configured to move foreign substances on the surface, and a wiping member configured to wipe foreign substances from the surface. The cleaning sheet and the wiping member move in contact with the surface of the cover glass when the cleaning member cleans the surface. The wiping member moves in contact with a portion of the surface of the cover glass after the cleaning sheet moves in contact with the portion. Accordingly, the cover glass can be reliably cleaned even when an unexpectedly large number of foreign substances that vary in particle size and shape adhere to the cover glass.