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. 28, 2012
Filed:
Jun. 09, 2009
Jiro Moriyama, Kawasaki, JP;
Masashi Hayashi, Sagamihara, JP;
Yuji Konno, Kawasaki, JP;
Takeshi Yazawa, Yokohama, JP;
Kiichiro Takahashi, Yokohama, JP;
Yoshiaki Murayama, Tokyo, JP;
Jiro Moriyama, Kawasaki, JP;
Masashi Hayashi, Sagamihara, JP;
Yuji Konno, Kawasaki, JP;
Takeshi Yazawa, Yokohama, JP;
Kiichiro Takahashi, Yokohama, JP;
Yoshiaki Murayama, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet printing apparatus printing on a print medium includes a print head having a plurality of ejection ports for ejecting ink while scanning in a scan direction, and a conveyance unit including a pair of rollers for conveying the print medium in a conveyance direction crossing the scan direction by rotation of the rollers. The rollers are provided at a position at an upper stream side in the conveying direction of the print medium from a print position at which printing by the print head is performed. A detection unit is configured to detect a downstream side end of the print medium conveyed by the pair of rollers, with the detection unit arranged at a position that is a distance from the pair of rollers, in the conveyance direction, corresponding to a length of the print medium. In addition, a change unit is configured to change the ejection ports available for printing according to an error in conveyance detected by the detection unit.