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. 14, 2012
Filed:
May. 03, 2007
Kazunori Takashima, Sunto-gun, JP;
Kazunori Takashima, Sunto-gun, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A recording material detecting apparatus includes a detecting device and a reference member. The detecting device irradiates a recording material with light and detects the light from the recording material. The reference member has a reference portion detectable by the detecting device in order to correct the output from the detecting device. The reference member is capable of moving from a position where the reference portion is detected by the detecting device. The reference member is moved by the recording material. Since a driving unit such as a motor is not necessary, the cost of the apparatus body can be dramatically reduced, and the apparatus structure can be dramatically simplified.