公开(公告)号：US08240798B2

公开(公告)日：2012-08-14

申请号：US12161201

申请日：2007-01-17

申请人： Atsushi Oshima ,  Kunio Tabata ,  Osamu Shinkawa ,  Toshiyuki Suzuki ,  Tomoki Hatano

发明人： Atsushi Oshima ,  Kunio Tabata ,  Osamu Shinkawa ,  Toshiyuki Suzuki ,  Tomoki Hatano

IPC分类号： B41J29/38 ,  H03F3/38

CPC分类号： B41J2/04596 ,  B41J2/04541 ,  B41J2/04548 ,  B41J2/04568 ,  B41J2/04578 ,  B41J2/0458 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04591 ,  B41J2/04595

摘要： A head drive device of an inkjet printer having a nozzles and corresponding actuators that jet liquid drops. A drive section that generates a drive signal to the actuators. The head drive device includes a drive waveform signal which is used as a reference of a signal to control drive of the actuators. A modulating section modulates a pulse of a drive waveform signal generated by the drive waveform generating system. A low pass filter smoothes a power-amplified modulated signal subjected to the power amplification by the digital power amplifier and supplies the signal as a drive signal to the actuators. A frequency characteristics adjusting section adjusts frequency characteristics of the low pass filter as a function of the number of the actuators.

摘要翻译： 一种喷墨打印机的头驱动装置，其具有喷嘴和喷射液滴的相应致动器。 驱动部分，用于产生驱动信号给致动器。 头驱动装置包括驱动波形信号，该驱动波形信号用作用于控制致动器的驱动的信号的基准。 调制部分调制由驱动波形发生系统产生的驱动波形信号的脉冲。 低通滤波器对由数字功率放大器进行功率放大的功率放大调制信号进行平滑，并将该信号作为驱动信号提供给致动器。 频率特性调整部分根据致动器的数量调节低通滤波器的频率特性。

公开(公告)号：US20090033698A1

公开(公告)日：2009-02-05

申请号：US12161900

申请日：2007-01-25

申请人： Toshiyuki Suzuki ,  Kunio Tabata ,  Osamu Shinkawa ,  Tomoki Hatano ,  Atsushi Oshima

发明人： Toshiyuki Suzuki ,  Kunio Tabata ,  Osamu Shinkawa ,  Tomoki Hatano ,  Atsushi Oshima

IPC分类号： B41J29/38

CPC分类号： B41J2/04588 ,  B41J2/04541 ,  B41J2/04581 ,  B41J2/04593 ,  B41J2/04596

摘要： With an appropriate signal transmission form, a drive pulse output circuit is mounted to an ink jet head, so that waveform distortion of an actuator drive pulse for jet of ink drops is inhibited or prevented. Modulated signal data in memory is read to output a modulated signal, which is power-amplified by a digital power amplifier. The amplified digital signal is smoothed to be output to an actuator as a drive pulse. As a result, the digital power amplifier having high amplification efficiency efficiently amplifies the power of the modulated signal, thereby eliminating the need to use a cooling unit. The drive pulse output circuit can be mounted to the ink jet heads, thereby shortening the transmission path of an actuator drive pulse, which inhibits or prevents any waveform distortion of the drive pulse. The transmission of the modulated signal data DATA is implemented with a low frequency.

摘要翻译： 通过适当的信号传输形式，驱动脉冲输出电路被安装到喷墨头，从而抑制或防止用于喷墨喷墨的致动器驱动脉冲的波形失真。 读出存储器中的调制信号数据，以输出由数字功率放大器进行功率放大的调制信号。 放大的数字信号被平滑化以作为驱动脉冲输出到致动器。 结果，具有高放大效率的数字功率放大器有效地放大调制信号的功率，从而消除了使用冷却单元的需要。 驱动脉冲输出电路可以安装在喷墨头上，从而缩短致动器驱动脉冲的传输路径，其抑制或防止驱动脉冲的任何波形失真。 以低频率实现调制信号数据DATA的发送。

公开(公告)号：US08430466B2

公开(公告)日：2013-04-30

申请号：US12161148

申请日：2007-01-17

申请人： Kunio Tabata ,  Atsushi Oshima ,  Osamu Shinkawa ,  Toshiyuki Suzuki ,  Tomoki Hatano

发明人： Kunio Tabata ,  Atsushi Oshima ,  Osamu Shinkawa ,  Toshiyuki Suzuki ,  Tomoki Hatano

IPC分类号： B41J29/38 ,  B41J2/05

CPC分类号： B41J2/04596 ,  B41J2/04541 ,  B41J2/04548 ,  B41J2/04568 ,  B41J2/04578 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04591 ,  B41J2/04595 ,  H01L41/042

摘要： A head drive apparatus of an inkjet printer includes nozzles and corresponding actuators that eject liquid drops. A drive unit applies a drive signal to the actuators. The drive unit includes a drive waveform generator that generates a drive waveform signal as a reference of a signal to control drive of the actuators. A modulator pulse modulates a drive waveform signal generated by the drive waveform generator. A digital power amplifier amplifies power of a modulated signal subjected to the pulse modulation. A low pass filter smoothes an amplified digital signal subjected to the power amplification by the digital power amplifier and supplying the signal as a drive signal to the actuators. An inverse filter provided in a subsequent stage of the drive waveform generator corrects at least the frequency characteristics of the filter to predetermined frequency characteristics, independently of the number of the actuators to drive.

摘要翻译： 喷墨打印机的头驱动装置包括喷嘴和喷射液滴的相应致动器。 驱动单元向驱动器施加驱动信号。 驱动单元包括驱动波形发生器，其产生用于控制致动器的驱动的信号的参考的驱动波形信号。 调制器脉冲调制由驱动波形发生器产生的驱动波形信号。 数字功率放大器放大经受脉冲调制的调制信号的功率。 低通滤波器对由数字功率放大器进行功率放大的放大数字信号进行平滑处理，并将信号作为驱动信号提供给致动器。 设置在驱动波形发生器的后续级中的反相滤波器至少将滤波器的频率特性校正到预定的频率特性，与要驱动的致动器的数量无关。

公开(公告)号：US08287069B2

公开(公告)日：2012-10-16

申请号：US12158591

申请日：2006-12-22

申请人： Kunio Tabata ,  Atsushi Oshima ,  Osamu Shinkawa ,  Toshiyuki Suzuki ,  Tomoki Hatano

发明人： Kunio Tabata ,  Atsushi Oshima ,  Osamu Shinkawa ,  Toshiyuki Suzuki ,  Tomoki Hatano

IPC分类号： B41J29/38

CPC分类号： B41J2/04588 ,  B41J2/04541 ,  B41J2/0455 ,  B41J2/04581 ,  B41J2/04593 ,  B41J2/04596

摘要： A head drive apparatus of an ink jet printer having: a plurality of nozzles for jetting liquid drops that are provided for an ink jet head; a plurality of actuators provided in correspondence to the nozzles; and a drive unit that applies a drive signal to the actuators, wherein the drive unit comprising: a drive waveform generator that generates a drive waveform signal being standard of a signal to control drive of the actuators; a modulator that modulates a pulse of a drive waveform signal generated by the drive waveform generator; a digital power amplifier for amplifying power of a modulated signal subjected to the pulse modulation by the modulator; and a low pass filter for smoothing an amplified digital signal subjected to the power amplification by the digital power amplifier and supplying the signal as a drive signal to the actuators.

摘要翻译： 一种喷墨打印机的头驱动装置，具有：用于喷射为喷墨头设置的液滴的多个喷嘴; 与喷嘴相对应地设置的多个致动器; 以及驱动单元，其向所述致动器施加驱动信号，其中所述驱动单元包括：驱动波形发生器，其产生驱动波形信号，所述驱动波形信号是用于控制所述致动器的驱动的信号的标准; 调制器，其调制由所述驱动波形发生器产生的驱动波形信号的脉冲; 数字功率放大器，用于放大经调制器进行脉冲调制的调制信号的功率; 以及低通滤波器，用于平滑经数字功率放大器进行功率放大的放大数字信号，并将信号作为驱动信号提供给致动器。

公开(公告)号：US08201905B2

公开(公告)日：2012-06-19

申请号：US12161900

申请日：2007-01-25

申请人： Toshiyuki Suzuki ,  Kunio Tabata ,  Osamu Shinkawa ,  Tomoki Hatano ,  Atsushi Oshima

发明人： Toshiyuki Suzuki ,  Kunio Tabata ,  Osamu Shinkawa ,  Tomoki Hatano ,  Atsushi Oshima

IPC分类号： B41J29/38

CPC分类号： B41J2/04588 ,  B41J2/04541 ,  B41J2/04581 ,  B41J2/04593 ,  B41J2/04596

摘要： With an appropriate signal transmission form, a drive pulse output circuit is mounted to an ink jet head, so that waveform distortion of an actuator drive pulse for jet of ink drops is inhibited or prevented. Modulated signal data in memory is read to output a modulated signal, which is power-amplified by a digital power amplifier. The amplified digital signal is smoothed to be output to an actuator as a drive pulse. As a result, the digital power amplifier having high amplification efficiency efficiently amplifies the power of the modulated signal, thereby eliminating the need to use a cooling unit. The drive pulse output circuit can be mounted to the ink jet heads, thereby shortening the transmission path of an actuator drive pulse, which inhibits or prevents any waveform distortion of the drive pulse. The transmission of the modulated signal data DATA is implemented with a low frequency.

摘要翻译： 通过适当的信号传输形式，驱动脉冲输出电路被安装到喷墨头，从而抑制或防止用于喷墨喷墨的致动器驱动脉冲的波形失真。 读出存储器中的调制信号数据，以输出由数字功率放大器进行功率放大的调制信号。 放大的数字信号被平滑化以作为驱动脉冲输出到致动器。 结果，具有高放大效率的数字功率放大器有效地放大调制信号的功率，从而消除了使用冷却单元的需要。 驱动脉冲输出电路可以安装在喷墨头上，从而缩短致动器驱动脉冲的传输路径，其抑制或防止驱动脉冲的任何波形失真。 以低频率实现调制信号数据DATA的发送。

公开(公告)号：US07984957B2

公开(公告)日：2011-07-26

申请号：US12509915

申请日：2009-07-27

申请人： Kunio Tabata ,  Toshiyuki Suzuki ,  Atsushi Oshima ,  Osamu Shinkawa ,  Tomoki Hatano

发明人： Kunio Tabata ,  Toshiyuki Suzuki ,  Atsushi Oshima ,  Osamu Shinkawa ,  Tomoki Hatano

IPC分类号： B41J29/38

CPC分类号： B41J29/38 ,  B41J2/04541 ,  B41J2/04568 ,  B41J2/04573 ,  B41J2/04578 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04593 ,  B41J2/04596

摘要： A liquid jet apparatus including a plurality of nozzles provided to a liquid jet head, an actuator corresponding to each of the nozzles, and drive unit that applies a drive pulse to each of the actuators, wherein the drive unit includes correction value storing unit that stores a drive pulse application timing correction value corresponding to the number of actuators to be driven at the same time, and drive pulse application timing correction unit that corrects the drive pulse application timing using the drive pulse application timing correction value stored in the correction value storing unit.

摘要翻译： 一种液体喷射装置，包括设置在液体喷射头上的多个喷嘴，对应于每个喷嘴的致动器，以及向每个致动器施加驱动脉冲的驱动单元，其中驱动单元包括校正值存储单元，其存储 与同时驱动的致动器的数量相对应的驱动脉冲施加定时校正值以及使用存储在校正值存储单元中的驱动脉冲施加定时校正值来校正驱动脉冲施加定时的驱动脉冲施加定时校正单元 。

公开(公告)号：US20090066739A1

公开(公告)日：2009-03-12

申请号：US12161148

申请日：2007-01-17

申请人： Kunio Tabata ,  Toshiyuki Suzuki ,  Osamu Shinkawa ,  Tomoki Hatano ,  Atsushi Oshima

发明人： Kunio Tabata ,  Toshiyuki Suzuki ,  Osamu Shinkawa ,  Tomoki Hatano ,  Atsushi Oshima

IPC分类号： B41J29/38

CPC分类号： B41J2/04596 ,  B41J2/04541 ,  B41J2/04548 ,  B41J2/04568 ,  B41J2/04578 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04591 ,  B41J2/04595 ,  H01L41/042

摘要： A head drive apparatus of an inkjet printer, having: a plurality of nozzles provided to an inkjet head for ejecting liquid drops; actuators provided corresponding to the nozzles; and a drive unit that applies a drive signal to the actuators, wherein the drive unit, comprising: a drive waveform generator that generates a drive waveform signal as a reference of a signal to control drive of the actuators; a modulator that pulse modulates a drive waveform signal generated by the drive waveform generator; a digital power amplifier that amplifies power of a modulated signal subjected to the pulse modulation by the modulator; a low pass filter that smoothes a amplified digital signal subjected to the power amplification by the digital power amplifier and supplying the signal as a drive signal to the actuators; and an inverse filter provided in a subsequent stage of the drive waveform generator that corrects at least the frequency characteristics of the filter comprised of capacitances of the low pass filter and the actuators to a predetermined frequency characteristics, independently of the number of the actuators to drive.

摘要翻译： 一种喷墨打印机的头驱动装置，具有：多个喷嘴，其设置在用于喷射液滴的喷墨头上; 对应于喷嘴提供的致动器; 以及驱动单元，其向所述致动器施加驱动信号，其中所述驱动单元包括：驱动波形发生器，其产生驱动波形信号作为用于控制所述致动器的驱动的信号的参考; 脉冲调制由所述驱动波形发生器产生的驱动波形信号的调制器; 数字功率放大器，其通过调制器放大经过脉冲调制的调制信号的功率; 低通滤波器，对由数字功率放大器进行功率放大的放大数字信号进行平滑，并将信号作为驱动信号提供给致动器; 以及设置在驱动波形发生器的后续级中的逆滤波器，其至少将包括低通滤波器和致动器的电容器的滤波器的频率特性校正到预定的频率特性，与要驱动的致动器的数量无关 。

公开(公告)号：US08430468B2

公开(公告)日：2013-04-30

申请号：US13333648

申请日：2011-12-21

申请人： Kunio Tabata ,  Toshiyuki Suzuki ,  Osamu Shinkawa ,  Tomoki Hatano ,  Atsushi Oshima

发明人： Kunio Tabata ,  Toshiyuki Suzuki ,  Osamu Shinkawa ,  Tomoki Hatano ,  Atsushi Oshima

IPC分类号： B41J29/38 ,  B41J2/05

CPC分类号： B41J2/04596 ,  B41J2/04541 ,  B41J2/04548 ,  B41J2/04568 ,  B41J2/04578 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04591 ,  B41J2/04595 ,  H01L41/042

摘要： A head drive of an inkjet printer includes nozzles and corresponding actuators that eject liquid ink drops. A drive unit applies a drive signal to the actuators. The drive unit includes a drive waveform generator that generates a drive waveform signal to control the drive of the actuators. A modulator pulse modulates the drive waveform. A digital power amplifier amplifies power of the modulated signal. A low pass filter smoothes the amplified digital signal and supplies the signal as a drive signal to the actuators. An inverse filter provided in a subsequent stage of the drive waveform generator corrects at least the frequency characteristics of the filter to predetermined frequency characteristics, independent of the number of the actuators to drive.

摘要翻译： 喷墨打印机的头驱动器包括喷嘴和喷射液体墨滴的相应致动器。 驱动单元向驱动器施加驱动信号。 驱动单元包括驱动波形发生器，其产生驱动波形信号以控制致动器的驱动。 调制器脉冲调制驱动波形。 数字功率放大器放大调制信号的功率。 低通滤波器平滑放大的数字信号，并将信号作为驱动信号提供给致动器。 设置在驱动波形发生器的后续级中的反相滤波器至少将滤波器的频率特性校正到预定的频率特性，与要驱动的致动器的数量无关。

公开(公告)号：US08240794B2

公开(公告)日：2012-08-14

申请号：US11780357

申请日：2007-07-19

申请人： Atsushi Oshima ,  Kunio Tabata ,  Toshiyuki Suzuki ,  Osamu Shinkawa ,  Tomoki Hatano

发明人： Atsushi Oshima ,  Kunio Tabata ,  Toshiyuki Suzuki ,  Osamu Shinkawa ,  Tomoki Hatano

IPC分类号： B41J29/38

CPC分类号： B41J29/38

摘要： A liquid jet apparatus includes a plurality of nozzles provided to the liquid jet head, an actuator provided corresponding to each of the nozzles, drive unit that applies a drive signal to the actuator, drive waveform signal generation unit that generates a drive waveform signal providing a reference of a signal for controlling the actuator, modulator unit that pulse-modulates the drive waveform signal generated by the drive waveform signal generation unit, a digital power amplifier for power-amplifying the modulated signal, which is pulse-modulated by the modulator unit, and a low-pass filter provided individually corresponding to the actuator and for supplying the actuator with the power amplified modulated signal power-amplified by the digital power amplifier as a drive signal after smoothing.

摘要翻译： 液体喷射装置包括设置在液体喷射头上的多个喷嘴，对应于每个喷嘴设置的致动器，向致动器施加驱动信号的驱动单元，产生提供驱动波形信号的驱动波形信号的驱动波形信号生成单元 用于控制致动器的信号的参考，对由驱动波形信号产生单元产生的驱动波形信号进行脉冲调制的调制器单元，用于对由调制器单元脉冲调制的调制信号进行功率放大的数字功率放大器， 以及分别与致动器相对应地设置的低通滤波器，并且用于向致动器提供由数字功率放大器功率放大的功率放大调制信号作为平滑后的驱动信号。

公开(公告)号：US20090303271A1

公开(公告)日：2009-12-10

申请号：US12158591

申请日：2006-12-22

申请人： Kunio Tabata ,  Atsushi Oshima ,  Osamu Shinkawa ,  Toshiyuki Suzuki ,  Tomoki Hatano

发明人： Kunio Tabata ,  Atsushi Oshima ,  Osamu Shinkawa ,  Toshiyuki Suzuki ,  Tomoki Hatano

IPC分类号： B41J29/38

CPC分类号： B41J2/04588 ,  B41J2/04541 ,  B41J2/0455 ,  B41J2/04581 ,  B41J2/04593 ,  B41J2/04596

摘要： A head drive apparatus of an ink jet printer having: a plurality of nozzles for jetting liquid drops that are provided for an ink jet head; a plurality of actuators provided in correspondence to the nozzles; and a drive unit that applies a drive signal to the actuators, wherein the drive unit comprising: a drive waveform generator that generates a drive waveform signal being standard of a signal to control drive of the actuators; a modulator that modulates a pulse of a drive waveform signal generated by the drive waveform generator; a digital power amplifier for amplifying power of a modulated signal subjected to the pulse modulation by the modulator; and a low pass filter for smoothing an amplified digital signal subjected to the power amplification by the digital power amplifier and supplying the signal as a drive signal to the actuators.

摘要翻译： 一种喷墨打印机的头驱动装置，具有：用于喷射为喷墨头设置的液滴的多个喷嘴; 与喷嘴相对应地设置的多个致动器; 以及驱动单元，其向所述致动器施加驱动信号，其中所述驱动单元包括：驱动波形发生器，其产生驱动波形信号，所述驱动波形信号是用于控制所述致动器的驱动的信号的标准; 调制器，其调制由所述驱动波形发生器产生的驱动波形信号的脉冲; 数字功率放大器，用于放大经调制器进行脉冲调制的调制信号的功率; 以及低通滤波器，用于平滑经数字功率放大器进行功率放大的放大数字信号，并将信号作为驱动信号提供给致动器。