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:
May. 18, 2010
Filed:
Oct. 03, 2006
Masafumi Kamei, Kashiwa, JP;
Tetsuro Fukusaka, Abiko, JP;
Kazunori Togashi, Toride, JP;
Katsuhiro Ishido, Abiko, JP;
Takashi Soya, Abiko, JP;
Yuichi Makino, Abiko, JP;
Jiro Futagawa, Tokyo, JP;
Shohei Takeda, Toride, JP;
Shinichiro Wakahara, Tokyo, JP;
Masafumi Kamei, Kashiwa, JP;
Tetsuro Fukusaka, Abiko, JP;
Kazunori Togashi, Toride, JP;
Katsuhiro Ishido, Abiko, JP;
Takashi Soya, Abiko, JP;
Yuichi Makino, Abiko, JP;
Jiro Futagawa, Tokyo, JP;
Shohei Takeda, Toride, JP;
Shinichiro Wakahara, Tokyo, JP;
Canon Kabushiki Kaisha, , JP;
Abstract
There is provided an image reading apparatus for acquiring a read signal of an image by receiving and photoelectrically converting a light reflected from a document. The location of an alien substance on an original plate is detected based on a reflected light received by a light receiving unit adapted to receive a light reflected from a document. When an alien substance is detected, an illumination unit selectively illuminates the location in which the alien substance has been detected. Also, a message which prompts cleaning of the alien substance is displayed. A method of displaying the alien substance location are also provided. Thereby, the image reading apparatus of the present invention can assists a user in cleaning the alien substance such as a dust or dirt on the original plate.