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:
Jun. 16, 2009
Filed:
Jun. 27, 2003
Yutaka Tokura, Irvine, CA (US);
Kiyoshi Tokashiki, Kanagawa, JP;
Masahiro Takayanagi, Gunma, JP;
Yoshinori Ito, Tokyo, JP;
Hitoshi Hoshino, Aichi, JP;
Yuzo Harano, Kanagawa, JP;
Yutaka Tokura, Irvine, CA (US);
Kiyoshi Tokashiki, Kanagawa, JP;
Masahiro Takayanagi, Gunma, JP;
Yoshinori Ito, Tokyo, JP;
Hitoshi Hoshino, Aichi, JP;
Yuzo Harano, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention aims to effectively perform image data transfer between an image generation controller and an image processing controller in either of color image printing and black-and-white image printing. Respective signal lines of Y, M, C and K are provided in a video interface formed between a PDL controller and the image processing controller. When the color image is printed by a printer of one-drum structure, data of a one color for four lines are simultaneously transferred by using the four signal lines, and this transfer operation is repeated for one page and for the four colors. When the black-and-white image is printed, black data for the four lines are simultaneously transferred by using the four signal lines, and this transfer operation is repeated for one page.