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:
May. 26, 2015
Filed:
Dec. 09, 2010
Yoshiaki Murayama, Tokyo, JP;
Takeshi Murase, Yokohama, JP;
Masao Kato, Kawasaki, JP;
Shigeyasu Nagoshi, Yokohama, JP;
Minoru Teshigawara, Saitama, JP;
Minako Kato, Kawasaki, JP;
Susumu Hirosawa, Tokyo, JP;
Yutaka Kano, Yokohama, JP;
Satoshi Azuma, Kawasaki, JP;
Kentarou Muro, Tokyo, JP;
Yoshiaki Murayama, Tokyo, JP;
Takeshi Murase, Yokohama, JP;
Masao Kato, Kawasaki, JP;
Shigeyasu Nagoshi, Yokohama, JP;
Minoru Teshigawara, Saitama, JP;
Minako Kato, Kawasaki, JP;
Susumu Hirosawa, Tokyo, JP;
Yutaka Kano, Yokohama, JP;
Satoshi Azuma, Kawasaki, JP;
Kentarou Muro, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
In a line-head type inkjet printing apparatus that ejects a plurality of types of inks, an inkjet printing apparatus is provided in which the change of its ejection properties different depending on the type of ink is prevented from occurring. The line-head type printing apparatus includes an acquisition unit that counts the ejection number of liquid from each of print heads in each of a plurality of print heads. Furthermore, the printing apparatus compares the ejection number of liquid from each of the print heads counted by the acquisition unit with a threshold value set for each of the print heads. The printing apparatus includes a change unit that can move a holder in the main scanning direction when the counted ejection number of liquid exceeds the threshold value set for the print head.