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:
Jan. 12, 2010
Filed:
Jun. 07, 2005
Yoshitaka Kokubo, Shizuoka-ken, JP;
Yoshitaka Kokubo, Shizuoka-ken, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An apparatus can correctly discriminate between types of a recording medium, and obtain good fixed image by performing fixing in the optimum fixing conditions for a variety of different types of recording media. The apparatus includes an LEDserving as a first irradiation section, an LEDserving as a second irradiation section, a phototransistorserving as a first reading section, and a phototransistorserving as a second reading section. The light output from the LEDoperating as the light source and passing through a slitilluminates a surface of recording paper P on a recording paper conveyance guide. Besides, the recording paper conveyance guidehas a window opened for illuminating the recording paper from its underside in the present embodiment. The reflected light from the recording paper P is gathered via slitsandand is received by the phototransistorsand