LIQUID DISCHARGE DEVICE

• Main Authors: SHINKAWA OSAMU, NAKAZAWA YOSHIO, YOSHIDA MASAHIKO, FUJISAWA KAZUHITO, AKIYAMA ATSUSHI
• Format: Patent
• Language: English; Japanese
• Published: 31.08.2017
• Subjects: CORRECTION OF TYPOGRAPHICAL ERRORS; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; LINING MACHINES; PERFORMING OPERATIONS; PRINTING; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS

PROBLEM TO BE SOLVED: To determine a resistance value per unit length of various wiring in consideration of electromotive force of a piezoelectric element by a driving signal and residual vibration.SOLUTION: An ink jet printer comprises: a driving signal generation section 33 generating a driving signal for driving a piezoelectric element 200; a residual vibration detection section 356A; a selection section 352A selecting supply of the driving signal to the piezoelectric element 200 or supply of the electromotive force of the piezoelectric element to the residual vibration detection section 356A; a control IC 29d comprising the residual vibration detection section 356A, a connection terminal x3 connected to the piezoelectric element 200, an input terminal x1 supplied with the driving signal, and an output terminal x2 to which an output signal of the residual vibration detection section 356A is output; first external wiring L1o being connected to the input terminal and supplied with the driving signal; and second external wiring L2o being connected to the output terminal x2 and supplied with the output signal of the residual vibration detection section 356A. A resistance value per unit length of the second external wiring L2o is greater than a resistance value per unit length of the first external wiring L1o.SELECTED DRAWING: Figure 28 【課題】駆動信号と残留振動による圧電素子の起電力を考慮して各種配線の単位長さ当たりの抵抗値を定める。【解決手段】インクジェットプリンターは、圧電素子２００を駆動するための駆動信号を生成する駆動信号生成部３３と、残留振動検出部３５６Ａと、圧電素子２００に駆動信号を供給するか、圧電素子の起電力を残留振動検出部３５６Ａに供給するかを選択する選択部３５２Ａと、残留振動検出部３５６Ａと、圧電素子２００と接続される接続端子ｘ３と、駆動信号が供給される入力端子ｘ１と、残留振動検出部３５６Ａの出力信号が出力される出力端子ｘ２とを備えた制御ＩＣ２９ｄと、入力端子に接続され、駆動信号が供給される第１外部配線Ｌ１ｏと、出力端子ｘ２に接続され残留振動検出部３５６Ａの出力信号が供給される第２外部配線Ｌ２ｏとを備え、第２外部配線Ｌ２ｏの単位長さ当たりの抵抗値は、第１外部配線Ｌ１ｏの単位長さ当たりの抵抗値より大きい。【選択図】図２８