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:
Oct. 31, 2006
Filed:
Apr. 09, 2003
Tomohiro Nakamori, Kanagawa, JP;
Tomohiro Nakamori, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In an image forming apparatus that judges the type of sheet by using an image pickup device, it is possible to read an image which does not blur and is excellent in precision even if the shutter period of time of the image pickup device is made long, and even in the case of providing a plurality of sheet feeding parts, it is possible to judge the type of sheet more inexpensively. An image read sensor, which is disposed downstream of a junction of a deck and a recording material tray and upstream of a pair of registration rollers on the transport path for the recording material, reads the image within a light irradiated region of the recording material by irradiating a light onto the surface of the recording material when the recording material which is fed to the transport path stops, and sets an image formation condition in accordance with a read output.