公开(公告)号：US08424996B2

公开(公告)日：2013-04-23

申请号：US12648729

申请日：2009-12-29

Applicant: Akira Iriguchi

Inventor： Akira Iriguchi

IPC: B41J29/393 ,  B41J29/38

CPC classification number: B41J2/17513 ,  B41J2/04573 ,  B41J2/0458 ,  B41J2/17509 ,  B41J2/2128 ,  B41J29/393

Abstract: In a liquid-droplet jetting apparatus such as an ink-jet head having a plurality of nozzle rows formed therein, an ink is jetted from one of the nozzle rows and the ink is jetted from another nozzle row concurrently while changing delay times by each of which a jetting timing for the nozzle row is delayed with respect to a jetting timing for the another nozzle row. Then, an optimum image is determined among images formed by the ink jetted from these two nozzle rows, and a delay time in the jetting timings is extracted, among the delay times, which correspond to the optimum image. By determining the delay time in the nozzle rows in such a manner, the variation in jetting characteristics is small in the nozzle rows, thereby realizing satisfactory reproducibility of image.

Abstract translation: 在诸如其中形成有多个喷嘴列的喷墨头的液滴喷射装置中，从喷嘴列之一喷射墨水，并且同时从另一个喷嘴列喷射墨水，同时改变延迟时间 喷嘴列的喷射定时相对于另一个喷嘴列的喷射正时延迟。 然后，在由这两个喷嘴列喷射的墨水形成的图像中确定最佳图像，并且在与最佳图像对应的延迟时间中提取喷射定时中的延迟时间。 通过以这种方式确定喷嘴列中的延迟时间，喷嘴行中的喷射特性的变化小，从而实现令人满意的图像再现性。

公开(公告)号：US20070182774A1

公开(公告)日：2007-08-09

申请号：US11698385

申请日：2007-01-26

Applicant: Akira Iriguchi

Inventor： Akira Iriguchi

IPC: B41J29/38

CPC classification number: B41J2/14209 ,  B41J2/04516 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04596 ,  B41J2002/14217 ,  B41J2002/14225

Abstract: A driving pulse signal for forming one dot includes a first, a second, and a third main pulses applied intermittently with an intervals to eject an ink droplet, and a stabilizing pulse which is inserted between the main pulses, and which suppresses a residual vibration of an ink in a pressure chamber, generated by a main pulse applied previously. The third main pulse suppresses the residual vibration of the ink generated by the second main pulse, and also a pulse width of the third pulse is adjusted such that there is no residual vibration remained, due to application of the last main pulse. Consequently, it is possible to suppress effectively the residual vibration of the ink by the less number of the stabilizing pulses compared to the number of main pulses. As a result, an overall pulse width becomes short, and it is possible to increase the recording speed.

Abstract translation: 用于形成一个点的驱动脉冲信号包括以喷射墨滴的间隔间歇地施加的第一，第二和第三主脉冲，以及插入主脉冲之间的稳定脉冲，并且抑制 压力室中的油墨，由先前施加的主脉冲产生。 第三主脉冲抑制由第二主脉冲产生的墨的残余振动，并且由于施加最后一个主脉冲，调整第三脉冲的脉冲宽度，使得不存在剩余振动。 因此，可以通过与主脉冲数相比较少的稳定脉冲数来有效地抑制墨的残留振动。 结果，总脉冲宽度变短，并且可以提高记录速度。

公开(公告)号：US20070176977A1

公开(公告)日：2007-08-02

申请号：US11654819

申请日：2007-01-18

Applicant: Akira Iriguchi

Inventor： Akira Iriguchi

IPC: B41J2/045

CPC classification number: B41J2/14209 ,  B41J2002/14217 ,  B41J2002/14225 ,  B41J2002/14306 ,  B41J2002/14419 ,  B41J2202/11

Abstract: A liquid-droplet jetting apparatus is provided with a cavity unit in which nozzles and pressure chambers are formed; and a piezoelectric actuator which includes active portions which deforms when a drive voltage is applied thereto. In the apparatus, the active portions are deformed to change the volume of the pressure chambers to thereby jet a liquid in the pressure chambers from the nozzles. The active portions are grouped into a plurality of groups which are different in the length in the longitudinal direction of the active portions. Active portions with a greater length have a greater width, and active portions with a smaller length have a smaller width. Accordingly, in the liquid-droplet jetting apparatus in which the active portions are grouped into the jetting groups, drive voltages can be made substantially same with respect to all the jetting groups.

Abstract translation: 液滴喷射装置设置有形成喷嘴和压力室的空腔单元; 以及压电致动器，其包括当施加驱动电压时变形的有效部分。 在该装置中，活性部分变形以改变压力室的体积，从而从喷嘴喷射压力室中的液体。 有源部分被分组为在有源部分的纵向方向上的长度不同的多个组。 具有较大长度的有效部分具有较大的宽度，并且具有较小长度的活动部分具有较小的宽度。 因此，在将活性部分分组成喷射组的液滴喷射装置中，驱动电压可以相对于所有喷射组基本相同。

公开(公告)号：US20070126803A1

公开(公告)日：2007-06-07

申请号：US11635473

申请日：2006-12-07

Applicant: Akira Iriguchi

Inventor： Akira Iriguchi

IPC: B41J2/045

CPC classification number: B41J2/14233 ,  B41J2/14209 ,  B41J2002/14217 ,  B41J2002/14225 ,  B41J2002/14258 ,  B41J2002/14306 ,  B41J2002/14419 ,  B41J2202/11

Abstract: In a liquid-droplet jetting apparatus constructed to change volume of pressure chambers in a cavity unit by displacement of active portions in a piezoelectric actuator so as to jet liquid in the pressure chambers from nozzles, respectively, the pressure chambers and the active portions extend on a predetermined plane; a length in a longitudinal direction of each of the active portions is not more than 1.5 mm, a height of each of the pressure chambers is 40 μm to 60 μm, and a thickness of a member which defines surfaces, of the pressure chambers, on a side opposing the piezoelectric actuator is 100 μm to 150 μm. The liquid-droplet jetting apparatus can stably jet a liquid-droplet having a minute volume at a predetermined speed without increasing a drive voltage applied to the active portions.

Abstract translation: 在液滴喷射装置中，分别通过使压电致动器中的有源部分移位而改变腔单元中的压力室的体积，从而分别从喷嘴喷射压力室中的液体，压力室和活动部分分别延伸 一个预定的平面; 每个活动部分的纵向长度不大于1.5mm，每个压力室的高度为40mum至60mum，并且限定压力室的表面的部件的厚度为 与压电致动器相对的一侧为100μm至150μm。 液滴喷射装置可以在不增加施加到有源部分的驱动电压的情况下以预定速度稳定地喷射具有微小体积的液滴。

公开(公告)号：US20050212840A1

公开(公告)日：2005-09-29

申请号：US11087121

申请日：2005-03-22

Applicant: Akira Iriguchi

Inventor： Akira Iriguchi

IPC: B41J2/01 ,  B41J2/045 ,  B41J2/055 ,  B41J2/14 ,  B41J2/205 ,  B41J29/38

CPC classification number: B41J2/04593 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/14209 ,  B41J29/38 ,  B41J2002/14217 ,  B41J2002/14225 ,  B41J2002/14306 ,  B41J2002/14419

Abstract: An ink ejecting device includes a plurality of nozzles, a plurality of pressure chambers respectively corresponding to the plurality of nozzles, an actuator capable of changing capacity of each of the plurality of pressure chambers. A first drive pulse signal is selected in accordance with dot information indicating dots to be formed on a recording medium successively. When the dot information for the current ejection cycle and the dot information for the succeeding ejection cycle indicate a first condition where ejection of a large amount of ink drop and no ejection of an ink drop, respectively, driving pulse signals for the current ejection cycle and the succeeding ejection cycle are selected, respectively. The driving pulse signals for the current ejection cycle and the succeeding ejection cycle are then output in the current ejection cycle and within the succeeding ejection cycle, respectively.

Abstract translation: 喷墨装置包括多个喷嘴，分别对应于多个喷嘴的多个压力室，能够改变多个压力室中的每一个的容量的致动器。 根据指示要在记录介质上形成的点的点信息来选择第一驱动脉冲信号。 当当前喷射周期的点信息和随后的喷射周期的点信息分别表示喷射大量墨滴而不喷射墨滴的第一状态，驱动当前喷射周期的脉冲信号，以及 分别选择随后的喷射周期。 然后分别在当前的喷射循环和随后的喷射循环中输出用于当前喷射循环和随后的喷射循环的驱动脉冲信号。

公开(公告)号：US06663208B2

公开(公告)日：2003-12-16

申请号：US09987392

申请日：2001-11-14

Applicant: Shigeru Suzuki ,  Masatomo Kojima ,  Akira Iriguchi

Inventor： Shigeru Suzuki ,  Masatomo Kojima ,  Akira Iriguchi

IPC: B41J2938

CPC classification number: B41J2/04516 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04595 ,  B41J2/04596 ,  B41J2002/14225

Abstract: An ink-jet head controller generates drive waveforms selectively at predetermined print cycles to cause ink ejection from a cavity. A waveform generator generates a plurality of waveform signals, including a waveform signal extending over two adjacent print cycles, and a waveform selector selects and outputs to the ink-jet head one of a plurality of waveform signals, based on whether dot data for two adjacent print cycles indicates ink ejection. The waveform selector selects a waveform signal extending over two adjacent print cycles when dot data for a current print cycle indicates ink ejection while dot data for a next print cycle indicates no ink ejection. In addition, a plurality of drive pulses cause ejection of a plurality of ink droplets to form a dot outputted after a certain delay from the start of the current print cycle.

公开(公告)号：US08439473B2

公开(公告)日：2013-05-14

申请号：US12890077

申请日：2010-09-24

Applicant: Akira Iriguchi ,  Tomohiro Nodsu

Inventor： Akira Iriguchi ,  Tomohiro Nodsu

IPC: B41J2/205 ,  B41J29/38

CPC classification number: B41J19/142

Abstract: An ink-jet printer includes an ink jet head which jets liquid droplets of an ink onto a recording medium; a scanning mechanism which reciprocates the ink-jet head in a forward scan direction and a backward scan direction; a transport mechanism which transports the recording medium in a transport direction intersecting with the forward and backward scan directions; and a jetting controller which controls the ink-jet head. The jetting controller has a reference jetting amount setting section which sets a reference jetting amount based on an input image data for each of a plurality of scans of the ink-jet head, and a jetting amount adjusting section which makes a jetting amount be smaller than the reference jetting amount with respect to an overlapping area at which liquid droplet jetting areas of the forward scan and the backward scan partially overlap each other.

Abstract translation: 喷墨打印机包括将油墨的液滴喷射到记录介质上的喷墨头; 扫描机构，其使喷墨头在正扫描方向和反向扫描方向上往复运动; 传送机构，其在与前后扫描方向相交的传送方向上传送记录介质; 以及控制喷墨头的喷射控制器。 喷射控制器具有参考喷射量设定部，其基于喷墨头的多次扫描中的每一次的输入图像数据设定基准喷射量，喷射量调节部使喷射量小于 相对于正向扫描和向后扫描的液滴喷射区域的重叠区域的参考喷射量部分地重叠。

公开(公告)号：US07891750B2

公开(公告)日：2011-02-22

申请号：US11698385

申请日：2007-01-26

Applicant: Akira Iriguchi

Inventor： Akira Iriguchi

IPC: B41J29/38

CPC classification number: B41J2/14209 ,  B41J2/04516 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04596 ,  B41J2002/14217 ,  B41J2002/14225

Abstract: A driving pulse signal for forming one dot includes a first, a second, and a third main pulses applied intermittently with an intervals to eject an ink droplet, and a stabilizing pulse which is inserted between the main pulses, and which suppresses a residual vibration of an ink in a pressure chamber, generated by a main pulse applied previously. The third main pulse suppresses the residual vibration of the ink generated by the second main pulse, and also a pulse width of the third pulse is adjusted such that there is no residual vibration remained, due to application of the last main pulse. Consequently, it is possible to suppress effectively the residual vibration of the ink by the less number of the stabilizing pulses compared to the number of main pulses. As a result, an overall pulse width becomes short, and it is possible to increase the recording speed.

Abstract translation: 用于形成一个点的驱动脉冲信号包括以喷射墨滴的间隔间歇地施加的第一，第二和第三主脉冲，以及插入主脉冲之间的稳定脉冲，并且抑制 压力室中的油墨，由先前施加的主脉冲产生。 第三主脉冲抑制由第二主脉冲产生的墨的残余振动，并且由于施加最后一个主脉冲，调整第三脉冲的脉冲宽度，使得不存在剩余振动。 因此，可以通过与主脉冲数相比较少的稳定脉冲数来有效地抑制墨的残留振动。 结果，总脉冲宽度变短，并且可以提高记录速度。

公开(公告)号：US07722165B2

公开(公告)日：2010-05-25

申请号：US11635473

申请日：2006-12-07

Applicant: Akira Iriguchi

Inventor： Akira Iriguchi

IPC: B41J2/045

CPC classification number: B41J2/14233 ,  B41J2/14209 ,  B41J2002/14217 ,  B41J2002/14225 ,  B41J2002/14258 ,  B41J2002/14306 ,  B41J2002/14419 ,  B41J2202/11

Abstract: In a liquid-droplet jetting apparatus constructed to change volume of pressure chambers in a cavity unit by displacement of active portions in a piezoelectric actuator so as to jet liquid in the pressure chambers from nozzles, respectively, the pressure chambers and the active portions extend on a predetermined plane; a length in a longitudinal direction of each of the active portions is not more than 1.5 mm, a height of each of the pressure chambers is 40 μm to 60 μm, and a thickness of a member which defines surfaces, of the pressure chambers, on a side opposing the piezoelectric actuator is 100 μm to 150 μm. The liquid-droplet jetting apparatus can stably jet a liquid-droplet having a minute volume at a predetermined speed without increasing a drive voltage applied to the active portions.

Abstract translation: 在液滴喷射装置中，分别通过使压电致动器中的有源部分移位而改变腔单元中的压力室的体积，从而分别从喷嘴喷射压力室中的液体，压力室和活动部分分别延伸 一个预定的平面; 每个有源部分的纵向长度不大于1.5mm，每个压力室的高度为40μm至60μm，并且限定压力室的表面的部件的厚度为 与压电致动器相对的一侧为100μm〜150μm。 液滴喷射装置可以在不增加施加到有源部分的驱动电压的情况下以预定速度稳定地喷射具有微小体积的液滴。

公开(公告)号：US07607765B2

公开(公告)日：2009-10-27

申请号：US11654819

申请日：2007-01-18

Applicant: Akira Iriguchi

Inventor： Akira Iriguchi

IPC: B41J2/045

CPC classification number: B41J2/14209 ,  B41J2002/14217 ,  B41J2002/14225 ,  B41J2002/14306 ,  B41J2002/14419 ,  B41J2202/11

Abstract: A liquid-droplet jetting apparatus is provided with a cavity unit in which nozzles and pressure chambers are formed; and a piezoelectric actuator which includes active portions which deforms when a drive voltage is applied thereto. In the apparatus, the active portions are deformed to change the volume of the pressure chambers to thereby jet a liquid in the pressure chambers from the nozzles. The active portions are grouped into a plurality of groups which are different in the length in the longitudinal direction of the active portions. Active portions with a greater length have a greater width, and active portions with a smaller length have a smaller width. Accordingly, in the liquid-droplet jetting apparatus in which the active portions are grouped into the jetting groups, drive voltages can be made substantially same with respect to all the jetting groups.

Abstract translation: 液滴喷射装置设置有形成喷嘴和压力室的空腔单元; 以及压电致动器，其包括当施加驱动电压时变形的有效部分。 在该装置中，活性部分变形以改变压力室的体积，从而从喷嘴喷射压力室中的液体。 有源部分被分组为在有源部分的纵向方向上的长度不同的多个组。 具有较大长度的有效部分具有较大的宽度，并且具有较小长度的活动部分具有较小的宽度。 因此，在将活性部分分组成喷射组的液滴喷射装置中，驱动电压可以相对于所有喷射组基本相同。