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:
Apr. 19, 2011
Filed:
Aug. 21, 2007
Tetsuya Ishikawa, Yokohama, JP;
Haruyuki Yanagi, Machida, JP;
Kentaro Onuma, Yokohama, JP;
Hiroyuki Saito, Yokohama, JP;
Hideo Sugimura, Tokyo, JP;
Masakazu Tsukuda, Tokyo, JP;
Tetsuya Ishikawa, Yokohama, JP;
Haruyuki Yanagi, Machida, JP;
Kentaro Onuma, Yokohama, JP;
Hiroyuki Saito, Yokohama, JP;
Hideo Sugimura, Tokyo, JP;
Masakazu Tsukuda, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
This invention relates to a printing apparatus and a conveyance control method capable of allowing even an arrangement having a plurality of conveyance rollers in a printing medium conveyance path to accurately control conveyance of a printing medium. A pattern having a predetermined uniform density is printed on a printing medium a plurality of number of times by using a printhead while conveying the printing medium and changing the conveyance amount by a small amount. A conveyance correction amount obtained on the basis of the conveyance amount upon printing a pattern selected from a plurality of printed pattern is stored in a storage medium. Conveyance of the printing medium is controlled while correcting the conveyance amount of the printing medium by the conveyance means on the basis of the conveyance correction amount stored in the storage means.