| 发明名称 | Liquid discharge apparatus and control method of liquid discharge apparatus | ||
| 摘要 | A liquid discharge apparatus includes a piezoelectric element in which a drive signal is applied and which is displaced to eject a liquid; a zeroth wire of a zeroth potential; a first wire of a first potential that is higher than the zeroth potential; a second wire of a second potential that is higher than the first potential; and a connection path selecting section that electrically connects one end of the piezoelectric element to the zeroth wire, the first wire, or the second wire in response to a voltage of a source drive signal that controls the voltage of the drive signal and a hold voltage of the piezoelectric element. Here, a first potential difference from the zeroth potential to the first potential is different from a second potential difference from the first potential to the second potential. | ||
| 申请公布号 | US9259919(B2) | 申请公布日期 | 2016.02.16 |
| 申请号 | US201514699326 | 申请日期 | 2015.04.29 |
| 申请人 | Seiko Epson Corporation | 发明人 | Otsuka Shuji;Kiyuna Tadashi;Asanuma Toshifumi |
| 分类号 | B41J2/04;B41J2/045 | 主分类号 | B41J2/04 |
| 代理机构 | Harness, Dickey & Pierce, P.L.C. | 代理人 | Harness, Dickey & Pierce, P.L.C. |
| 主权项 | 1. A liquid discharge apparatus comprising: a piezoelectric element in which a drive signal is applied to one end thereof and which is displaced in response to voltages of the one end and the other end thereof; a cavity which is filled with a liquid and of which an inside volume is expanded and contracted due to the displacement of the piezoelectric element; a nozzle that communicates with the cavity and is capable of discharging the liquid by the expansion and contraction of the inside volume of the cavity; a zeroth wire of a zeroth potential; a first wire of a first potential that is higher than the zeroth potential; a second wire of a second potential that is higher than the first potential; and a connection path selecting section that electrically connects one end of the piezoelectric element to the zeroth wire, the first wire, or the second wire in response to a voltage of a source drive signal that controls the voltage of the drive signal and a hold voltage of the piezoelectric element, wherein a first potential difference from the zeroth potential to the first potential is different from a second potential difference from the first potential to the second potential. | ||
| 地址 | JP | ||