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:
Sep. 09, 2008
Filed:
Jul. 12, 2005
Satoru Hosono, Nagano, JP;
Satoru Hosono, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid ejecting head is provided with pressure chambers adapted to contain liquid. Nozzle orifices are respectively communicated with the pressure chambers and arranged so as to form nozzle arrays. Each of pressure generating elements is operable to generate pressure fluctuation in the liquid contained in one of the pressure chambers to eject at least a first amount of a liquid droplet and a second amount of a liquid droplet from one of the nozzle orifices toward a target medium. A first storage stores first information indicative of a first deviation of the first amount from a first reference amount for each of the nozzle arrays. A second storage stores second information indicative of a correlation between the first deviation and a second deviation of the second amount from a second reference amount. A processor is operable to calculate the second deviation for each of the nozzle arrays with reference to the first information and the second information.