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:
Mar. 27, 2012
Filed:
Sep. 05, 2007
Takeaki Itsuji, Hiratsuka, JP;
Takehiko Kawasaki, Kamakura, JP;
Norio Kaneko, Atsugi, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
To provide new image forming apparatus and a printing method that can obtain information on image forming by using terahertz waves. An image forming apparatus includes a stock unit for stocking a media stack made of a plurality of media with images formed on; an electromagnetic wave generation unit for generating a terahertz wave to radiate on the media stack; an electromagnetic wave detection unit for detecting the terahertz wave propagated in a laminating direction of the media stack; a memory unit for storing reference data; a processing unit for generating data related to an image forming state from the detection signal from the electromagnetic wave detection unit, information on the number of sheets of the medium, and information on the image formed on the medium; and a comparative unit for comparing the data generated by the processing unit and the reference data stored in the memory unit.