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, 2009
Filed:
Sep. 29, 2005
Noboru Tamura, Nagano-ken, JP;
Noboru Tamura, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
The liquid ejection apparatus includes: (A) a drive signal generation section generating first and second drive signals to be applied to an element that can execute a liquid-ejection operation; (B) a data output section outputting first selection data for setting an application state of the first drive signal to the element, and second selection data for setting an application state of the second drive signal to the element; (C) a data inspection section inspecting the first and second selection data having been output from the data output section, and outputting inspected first selection data and inspected second selection data, wherein if the first and second selection data indicate that the first and second drive signals are to be applied to the element simultaneously, then the data inspection section continues to output the inspected first- and inspected second selection data that had been output up to then; and (D) a switch section including a first switch that controls application of the first drive signal to the element based on the inspected first selection data, and a second switch that controls application of the second drive signal to the element based on the inspected second selection data. Accordingly, it is possible to prevent a plurality of switches from entering the ON state simultaneously.