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:
Feb. 28, 2012
Filed:
Feb. 05, 2009
Sadaharu Komori, Shiojiri, JP;
Takeshi Ito, Suwa, JP;
Kei Hiruma, Chino, JP;
Satoru Katagami, Hara, JP;
Takahiro Imai, Chino, JP;
Toru Igarashi, Fujimi, JP;
Sadaharu Komori, Shiojiri, JP;
Takeshi Ito, Suwa, JP;
Kei Hiruma, Chino, JP;
Satoru Katagami, Hara, JP;
Takahiro Imai, Chino, JP;
Toru Igarashi, Fujimi, JP;
Seiko Epson Corporation, , JP;
Abstract
A method for setting up a condition for a drive signal in a liquid ejection head that includes a plurality of linearly-arranged nozzles and driving elements provided for each of the nozzles, includes: calculating an ejection rate for each nozzle relating to a supply of the drive signal under a predetermined condition by using a moving average; classifying the plurality of nozzles into a plurality of groups based on the ejection rate calculated by using the moving average of each nozzle; calculating a proper condition for the drive signal corresponding to each group based on a statistical value of the ejection rate relating to the group; and selecting one proper condition among proper conditions corresponding to the groups so as to set the selected proper condition for each nozzle.