公开(公告)号：EP2110251A1

公开(公告)日：2009-10-21

申请号：EP09158070.4

申请日：2009-04-16

申请人： Seiko Epson Corporation

发明人： Nishihara, Yuichi

IPC分类号： B41J2/175

CPC分类号： B41J2/17566 ,  B41J2/17546 ,  B41J2002/17579

摘要： A liquid jetting apparatus receives delivery of liquid from a liquid delivery system including a delivery system-side terminal. The liquid jetting apparatus includes a apparatus-side terminal, a contact sensing portion and a remaining level sensor portion. The apparatus-side terminal contacts the delivery system-side terminal when receiving delivery of liquid from the liquid delivery system. The contact sensing portion supplies a first electrical signal to the apparatus-side terminal to sense contact between the apparatus-side terminal and the system-side terminal. The remaining level sensor portion supplies a second electrical signal different from the first electrical signal to the apparatus-side terminal to sense a liquid volume in the liquid delivery system.

摘要翻译： 液体喷射装置从包括输送系统侧端子的液体输送系统接收液体的输送。 液体喷射装置包括装置侧端子，接触检测部分和剩余液位传感器部分。 当从液体输送系统接收液体的输送时，装置侧端子接触输送系统侧端子。 接触检测部分向设备侧端子提供第一电信号以感测设备侧端子与系统侧端子之间的接触。 剩余电平传感器部分将不同于第一电信号的第二电信号提供给装置侧端子，以感测液体输送系统中的液体体积。

公开(公告)号：EP1085655A3

公开(公告)日：2001-04-11

申请号：EP00307651.0

申请日：2000-09-05

申请人： SEIKO EPSON CORPORATION

发明人： Fukano, Takakazu ,  Tamura, Noboru ,  Asauchi, Noboru ,  Yoshida, Masahiko ,  Nishihara, Yuichi ,  Katayama, Toshihiko

IPC分类号： H03K4/00 ,  H03K4/02 ,  B41J2/045

CPC分类号： B41J2/04508 ,  B41J2/04541 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/04588 ,  H03K4/026

摘要： The present invention provides a technique that prevents a shift of a driving waveform due to accumulation of errors in a process of generating the driving waveform to drive driving elements on a print head. The technique of the present invention successively sums up a plurality of gradient data at a preset calculation period to give a result of summation and carries out digital-to-analog (D-A) conversion with regard to only specific upper columns in the result of summation in synchronism with the preset calculation period, so as to generate a driving waveform. Each gradient data represents a local gradient of the driving waveform and is stored in a memory. In the process of generating the driving waveform, the technique of the present invention corrects the result of summation to a preset value under a predetermined condition. One preferable embodiment clears specific lower bits in the result of summation in synchronism with a floor signal. Another preferable embodiment forcibly corrects the result of summation to an upper limit value or a lower limit value of a preset range when the result of summation exceeds the preset range. Such correction effectively cancels the potential effects of cumulative error on the driving waveform.

公开(公告)号：EP2110251B1

公开(公告)日：2013-01-16

申请号：EP09158070.4

申请日：2009-04-16

申请人： Seiko Epson Corporation

发明人： Nishihara, Yuichi

IPC分类号： B41J2/175

CPC分类号： B41J2/17566 ,  B41J2/17546 ,  B41J2002/17579

公开(公告)号：EP1085655B1

公开(公告)日：2003-03-05

申请号：EP00307651.0

申请日：2000-09-05

申请人： SEIKO EPSON CORPORATION

发明人： Fukano, Takakazu ,  Tamura, Noboru ,  Asauchi, Noboru ,  Yoshida, Masahiko ,  Nishihara, Yuichi ,  Katayama, Toshihiko

IPC分类号： H03K4/00 ,  H03K4/02 ,  B41J2/045

CPC分类号： B41J2/04508 ,  B41J2/04541 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/04588 ,  H03K4/026

公开(公告)号：EP1245393B1

公开(公告)日：2004-09-22

申请号：EP02006674.2

申请日：2002-03-26

申请人： SEIKO EPSON CORPORATION

发明人： Nishihara, Yuichi

IPC分类号： B41J2/175 ,  G01F23/296

CPC分类号： B41J2/17566 ,  G01F23/2967 ,  G01N2291/02836

公开(公告)号：EP1245393A1

公开(公告)日：2002-10-02

申请号：EP02006674.2

申请日：2002-03-26

申请人： SEIKO EPSON CORPORATION

发明人： Nishihara, Yuichi

IPC分类号： B41J2/175 ,  G01F23/296

CPC分类号： B41J2/17566 ,  G01F23/2967 ,  G01N2291/02836

摘要： A liquid-quantity monitoring apparatus includes: a piezoelectric device (106) having a vibrating part (176) capable of being exposed at least partly to a liquid-containing space, the piezoelectric device (106) being capable of vibrating the vibrating part by a given drive signal and of generating a signal representing back electromotive force generated by vibration of the vibrating part; and a liquid-quantity determining unit for determining a quantity of liquid remaining in the liquid-containing space, to which the vibrating part is exposed, based on a resonance frequency of a residual vibration signal output from the piezoelectric device (106) due to a residual vibration of the vibrating part after the vibrating part has been vibrated by the drive signal. The liquid-quantity determining unit counts a number of pulses included in the residual vibration signal, measures a time period necessary for counting a predetermined number of pulses after starting counting the pulses, and determines the quantity of the liquid based on the time period measured. The liquid-quantity determining unit repeats a pulse-counting operation for counting the predetermined number of pulses with different starting time points, and decides that a measurement is incorrect when differences between the time periods are greater than a predetermined allowable limit.

摘要翻译： 一种液体量监测装置，包括：一个压电装置（106），其具有振动部（176）能够被暴露的至少部分地为含有液体的空间，所述压电装置（106）能够由振动的振动部的 给定产生表示由振动部的振动而产生的反电动势的信号的驱动信号和; 以及用于确定性采矿液体量确定性挖掘单元的液体残留在含液体的空间的量，以可在该振动部分被暴露，基于从压电装置（106）输出的残留振动信号的共振频率因 振动部分后的振动部分的残留振动已经由驱动信号振动。 液体量确定性采矿单元计数的数包含在残留振动信号的脉冲，计测时间周期的必要用于开始计数脉冲之后计数脉冲的预定数量，和确定地雷的液体的基于测量的时间段的数量。 液体量确定性采矿单元重复的脉冲计数操作用于与不同的开始时间点计数的脉冲的预定数目时，并且决定做了测量是不正确当时间段之间的差大于预定允许限度时。

公开(公告)号：EP1085655A2

公开(公告)日：2001-03-21

申请号：EP00307651.0

申请日：2000-09-05

申请人： SEIKO EPSON CORPORATION

发明人： Fukano, Takakazu ,  Tamura, Noboru ,  Asauchi, Noboru ,  Yoshida, Masahiko ,  Nishihara, Yuichi ,  Katayama, Toshihiko

IPC分类号： H03K4/00

CPC分类号： B41J2/04508 ,  B41J2/04541 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/04588 ,  H03K4/026

摘要： The present invention provides a technique that prevents a shift of a driving waveform due to accumulation of errors in a process of generating the driving waveform to drive driving elements on a print head. The technique of the present invention successively sums up a plurality of gradient data at a preset calculation period to give a result of summation and carries out digital-to-analog (D-A) conversion with regard to only specific upper columns in the result of summation in synchronism with the preset calculation period, so as to generate a driving waveform. Each gradient data represents a local gradient of the driving waveform and is stored in a memory. In the process of generating the driving waveform, the technique of the present invention corrects the result of summation to a preset value under a predetermined condition. One preferable embodiment clears specific lower bits in the result of summation in synchronism with a floor signal. Another preferable embodiment forcibly corrects the result of summation to an upper limit value or a lower limit value of a preset range when the result of summation exceeds the preset range. Such correction effectively cancels the potential effects of cumulative error on the driving waveform.

摘要翻译： 本发明提供一种技术，确实防止的驱动波形的偏移由于在生成的驱动波形来驱动上的打印头驱动元件的过程中的误差的累积。 本发明的技术依次总结了梯度数据的多个以预先设定的计算周期，得到求和的结果，并且执行关于只有特定的上部列求和的结果中的数字 - 模拟（DA）转换 同步与预设计算周期，以便产生一个驱动波形。 darstellt驱动波形的局部梯度每个梯度数据，并且被存储在存储器中。 在产生的驱动波形的过程中，本发明的技术来校正求和，以在预定条件下预先设定的值的结果。 一个优选实施方式将清除求和同步与地板信号的结果特定较低位。 另一个优选实施例强制校正成在上限值或预设范围内。当求和的结果超过预先设定的范围的下限值求和的结果。 搜索校正可以有效消除累积误差对驱动波形的潜在影响。