公开(公告)号：US08777347B2

公开(公告)日：2014-07-15

申请号：US13445992

申请日：2012-04-13

申请人： Osamu Shinkawa ,  Toshiyuki Suzuki

发明人： Osamu Shinkawa ,  Toshiyuki Suzuki

IPC分类号： B41J29/38

CPC分类号： B41J2/0451 ,  B41J2/04581

摘要： A printer has a plurality of dischargers for discharging ink, a detector for detecting an electric signal SW, and an inspector unit for inspecting the dischargers on the basis of the electric signal SW; and a grounding terminal connecting a drive element of a discharger being inspected is electrically disconnected from another grounding terminal and a grounding line GL when the electric signal SW is detected by the detector.

摘要翻译： 打印机具有用于排出墨的多个放电器，用于检测电信号SW的检测器和用于基于电信号SW检查放电器的检查单元; 并且当检测器检测到电信号SW时，连接被检查的放电器的驱动元件的接地端子与另一接地端子和接地线GL电连接。

公开(公告)号：US08708449B2

公开(公告)日：2014-04-29

申请号：US13096291

申请日：2011-04-28

申请人： Osamu Shinkawa

发明人： Osamu Shinkawa

IPC分类号： B41J29/393 ,  B41J29/38

CPC分类号： B41J2/16579 ,  B41J2/16526

摘要： A liquid ejection device includes a plurality of nozzles and a common ejection testing portion. The nozzles are arranged to eject a liquid. The common ejection testing portion is provided in common to the nozzles, the common ejection testing portion being arranged to perform ejection testing of each of the nozzles during printing. At least one of the nozzles is selected to be tested using the common ejection testing portion when the liquid is ejected from the nozzles based on print data. The nozzles that eject liquid being identified based on the print data, and one of the nozzles, which have not been tested, having low ejection frequency based on the print data being selected as the at least one of the nozzles to be tested.

摘要翻译： 液体喷射装置包括多个喷嘴和公共喷射测试部分。 喷嘴布置成喷射液体。 公共喷射测试部分与喷嘴共同设置，公共喷射测试部分被布置成在打印期间执行每个喷嘴的喷射测试。 当基于打印数据从喷嘴喷射液体时，使用共同喷射测试部分选择至少一个喷嘴进行测试。 基于打印数据识别出的液体的喷嘴，以及未被测试的喷嘴之一，其喷射频率基于被选择为要测试的至少一个喷嘴的打印数据而具有低喷射频率。

公开(公告)号：US08371676B2

公开(公告)日：2013-02-12

申请号：US13106342

申请日：2011-05-12

申请人： Osamu Shinkawa

发明人： Osamu Shinkawa

IPC分类号： B41J29/393

CPC分类号： B41J2/16579 ,  B41J2/19 ,  B41J2/2142

摘要： A liquid ejection device includes a plurality of nozzles, a plurality of piezoelectric elements, a drive signal generating portion, a selection portion and an ejection testing portion. The nozzles are arranged to eject a liquid. The piezoelectric elements are provided in respective correspondence to the nozzles. The drive signal generating portion is arranged to generate a drive signal which repeats for each of ejection cycles in which the nozzles eject the liquid onto a pixel, there being a plurality of selectable periods provided in the ejection cycles, at least one of the periods being a testing period. The selection portion is arranged to selectively apply the drive signal to the piezoelectric elements in each of the periods. The ejection testing portion is arranged to perform ejection testing of the liquid from at least one of the nozzles to be tested.

摘要翻译： 液体喷射装置包括多个喷嘴，多个压电元件，驱动信号产生部分，选择部分和喷射测试部分。 喷嘴布置成喷射液体。 压电元件分别对应于喷嘴。 所述驱动信号产生部分被布置成产生驱动信号，所述驱动信号针对每个喷射循环重复喷射循环，其中喷嘴将液体喷射到像素上，在喷射循环中设置有多个可选择的周期，其中至少一个周期为 测试期间。 选择部分被布置成在每个周期中选择性地将驱动信号施加到压电元件。 喷射测试部分被布置成对待测试的喷嘴中的至少一个进行液体的喷射测试。

公开(公告)号：US07883204B2

公开(公告)日：2011-02-08

申请号：US11950510

申请日：2007-12-05

申请人： Osamu Shinkawa ,  Yusuke Sakagami

发明人： Osamu Shinkawa ,  Yusuke Sakagami

IPC分类号： B41J2/01 ,  B41J2/385

CPC分类号： B41J11/0005

摘要： An ink jet printer includes: ink jet heads that discharge aqueous ink droplets onto a printing surface of a printing medium that is transported in a predetermined direction; a vapor supply unit that is provided at a downstream side of the ink jet head in a direction in which the printing medium is transported and supplies vapor to a surface of the printing medium opposite the printing surface of the printing medium having the liquid droplets discharged from the ink jet heads in a non-contact manner; and a vapor electrostatic deposition unit that deposits the vapor supplied from the vapor supply unit to the surface of the printing medium opposite the printing surface of the printing medium using electrostatic force.

摘要翻译： 喷墨打印机包括：喷墨头，其将水性墨滴喷射到沿预定方向输送的打印介质的打印表面上; 蒸气供给单元，其设置在所述喷墨头的下游侧，沿着所述打印介质的输送方向，并且向所述打印介质的表面提供蒸气，所述表面与所述打印介质的打印介质的表面相反，所述打印介质的表面具有从 喷墨头以非接触的方式喷头; 以及蒸气静电沉积单元，其使用静电力将从蒸气供应单元供应的蒸汽沉积到与打印介质的打印表面相对的打印介质的表面上。

公开(公告)号：US07566109B2

公开(公告)日：2009-07-28

申请号：US11980147

申请日：2007-10-30

申请人： Osamu Shinkawa ,  Yusuke Sakagami ,  Koki Tajima

发明人： Osamu Shinkawa ,  Yusuke Sakagami ,  Koki Tajima

IPC分类号： B41J2/01

CPC分类号： B41J2/16579 ,  B41J2002/14354

摘要： It is an object of the invention to provide a droplet ejection apparatus and a method of detecting and judging a head failure that can detect an ejection failure and carry out appropriate recovery processing according to a cause thereof. The droplet ejection apparatus of the invention includes a plurality of droplet ejection heads, each of the droplet ejection heads including a diaphragm and an actuator which displaces the diaphragm; a driving circuit which drives the actuator of each droplet ejection head; residual vibration detector 16 for detecting a residual vibration of the diaphragm displaced by the actuator after the actuator has been driven by the driving circuit; pulse generator for generating reference pulses; information processor 17 for carrying out a computation for the number of reference pulses generated by the pulse generator on the basis of the residual vibration of the diaphragm detected by the residual vibration detector; time measurer for measuring a lapsed time since the actuator has been driven by the driving circuit; and head failure judge 20 for judging a head failure in the droplet ejection heads on the basis of the computation result of the information processor 17 and the lapsed time measured by the time measurer.

摘要翻译： 本发明的目的是提供一种液滴喷射装置和检测和判断可以检测喷射故障并根据其原因执行适当的恢复处理的头部故障的方法。 本发明的液滴喷射装置包括多个液滴喷射头，每个液滴喷射头包括隔膜和移动隔膜的致动器; 驱动每个液滴喷射头的致动器的驱动电路; 残余振动检测器16，用于检测在致动器已被驱动电路驱动之后由致动器移动的隔膜的残余振动; 用于产生参考脉冲的脉冲发生器; 信息处理器17，用于根据由残余振动检测器检测到的振膜的残余振动，执行由脉冲发生器产生的参考脉冲数的计算; 时间测量器，用于测量由致动器由驱动电路驱动的经过时间; 和头部故障判断器20，用于根据信息处理器17的计算结果和由时间测量器测量的经过时间来判断液滴喷射头中的磁头故障。

公开(公告)号：US07429093B2

公开(公告)日：2008-09-30

申请号：US11089249

申请日：2005-03-24

申请人： Osamu Shinkawa

发明人： Osamu Shinkawa

IPC分类号： B41J29/393 ,  B41J2/15

CPC分类号： B41J2/0451 ,  B41J2/04581 ,  B41J2/16579 ,  B41J2002/14354

摘要： A droplet discharging device is provided which does not require a special sensor (an optical sensor) and can enhance the precision of detecting a discharge abnormality of ink droplets. When printing is to be carried out, a transistor having a large current capacitance is turned on, a driving signal is applied from a driving circuit to piezoelectric actuators, and ink droplets are discharged by corresponding nozzles. Upon detecting a discharge abnormality of the nozzles, one of the piezoelectric actuators corresponding to the nozzles is selected, the transistor is turned off and a switch is turned on. A driving voltage is then applied from the driving circuit to the piezoelectric actuator thus selected in this state. When the application of the driving voltage ends, the switch is turned off. Consequently, a residual vibration detecting circuit detects the electromotive voltage of the piezoelectric actuator by the residual vibration of a vibrating plate.

摘要翻译： 提供了不需要特殊传感器（光学传感器）的液滴喷射装置，并且可以提高检测墨滴的排出异常的精度。 当要执行打印时，具有大电流电容的晶体管导通，驱动信号从驱动电路施加到压电致动器，并且墨滴通过相应的喷嘴排出。 在检测到喷嘴的放电异常时，选择与喷嘴对应的一个压电致动器，晶体管被截止并且开关导通。 然后在该状态下，从驱动电路将驱动电压施加到如此选择的压电致动器。 当驱动电压的施加结束时，开关断开。 因此，残余振动检测电路通过振动板的残余振动来检测压电致动器的电动势。

公开(公告)号：US07150513B2

公开(公告)日：2006-12-19

申请号：US10789819

申请日：2004-02-27

申请人： Osamu Shinkawa ,  Yusuke Sakagami

发明人： Osamu Shinkawa ,  Yusuke Sakagami

IPC分类号： B41J2/165 ,  B41J29/393 ,  B41J2/19

CPC分类号： B41J2/04581 ,  B41J2/0451 ,  B41J2/04578 ,  B41J2/0458 ,  B41J2/14314 ,  B41J2002/14411

摘要： A droplet ejection apparatus is provided having a plurality of droplet ejection heads each ejecting liquid within a cavity through a nozzle in the form of droplets by driving an actuator with a driving circuit. The apparatus includes: ejection failure detecting means for detecting an ejection failure of the droplet ejection heads and a cause thereof; and recovery means for performing a recovery process depending on the cause of the ejection failure if the ejection failure detecting means detects the ejection failure when the droplets are ejected through the nozzles. Also, if a failing nozzle is detected, a recovery process is performed depending on the cause of the ejection failure at least for the failing nozzle. Thereafter, detection by the ejection failure detecting means is repeated by forcing the failing nozzle to perform a droplet ejection operation alone.

摘要翻译： 提供一种液滴喷射装置，其具有多个液滴喷射头，每个液滴喷射头通过驱动具有驱动电路的致动器，通过喷嘴以液滴的形式喷射腔内的液体。 该装置包括：用于检测液滴喷射头的喷射故障的喷射故障检测装置及其原因; 以及恢复装置，用于如果喷射故障检测装置在通过喷嘴喷射液滴时检测到喷射故障，则根据喷射故障的原因进行恢复处理。 此外，如果检测到故障喷嘴，则至少对于故障喷嘴，根据喷射故障的原因进行恢复处理。 此后，通过迫使故障喷嘴单独执行液滴喷射操作来重复由喷射故障检测装置进行的检测。

公开(公告)号：US20050116977A1

公开(公告)日：2005-06-02

申请号：US10807921

申请日：2004-03-24

申请人： Osamu Shinkawa ,  Yusuke Sakagami

发明人： Osamu Shinkawa ,  Yusuke Sakagami

IPC分类号： B41J2/045 ,  B41J29/38

CPC分类号： B41J2/0451 ,  B41J2/04541 ,  B41J2/04578 ,  B41J2/04581 ,  B41J2002/14354 ,  B41J2002/14411

摘要： The droplet ejection apparatus of the invention includes a plurality of droplet ejection heads 100 each having a diaphragm, an actuator that displaces the diaphragm, and a nozzle through which a liquid in a cavity is ejected in the form of droplets in response to the increase and decrease of the internal pressure of the cavity, ejection selecting means 182 for selecting the nozzle of the ink jet head 100 in the plurality of ink jet heads 100 through which a ink droplet is to be ejected, ejection failure detecting means 10 for detecting a residual vibration of the diaphragm and detecting an ejection failure of the droplets on the basis of a vibration pattern of the detected residual vibration, and switching means 23 for switching a connection of the actuator from a driving circuit to the ejection failure detecting means 10 after carrying out a droplet ejection operation by driving the actuator.

摘要翻译： 本发明的液滴喷射装置包括多个液滴喷射头100，每个液滴喷射头100具有隔膜，移动隔膜的致动器和一个喷嘴，响应于这种增加，喷射器以液滴的形式喷射空腔中的液体，并且 喷射选择装置182，用于选择要喷射墨滴的多个喷墨头100中的喷墨头100的喷嘴;喷射失败检测装置10，用于检测残留物 根据检测到的残留振动的振动模式，检测出膜片的振动，并检测液滴的喷射失败;以及切换装置23，用于在执行后将驱动电路从驱动电路连接到喷射故障检测装置10 通过驱动致动器的液滴喷射操作。

公开(公告)号：US20050062781A1

公开(公告)日：2005-03-24

申请号：US10807920

申请日：2004-03-24

申请人： Osamu Shinkawa

发明人： Osamu Shinkawa

IPC分类号： B41J2/045 ,  B41J2/055 ,  B41J2/165 ,  B41J29/393

CPC分类号： B41J2/0451 ,  B41J2/04578 ,  B41J2/16579 ,  B41J2002/14411

摘要： It is an object of the invention to provide a droplet ejection apparatus and a method of detecting an ejection failure in droplet ejection heads capable of detecting an ejection failure in the droplet ejection heads by counting the number of reference pulses generated for a predetermined time period after a droplet ejection operation. The droplet ejection apparatus of the invention includes: a plurality of droplet ejection heads, each of the droplet ejection heads including a diaphragm, an actuator which displaces the diaphragm; a driving circuit which drives the actuator of each droplet ejection head; pulse generating means for generating reference pulses; a subtraction counter 45 for counting the number of reference pulses generated for a predetermined time period; and ejection failure detecting means for detecting an ejection failure of the droplets on the basis of the count value of the counter counted for the predetermined time period.

摘要翻译： 本发明的一个目的是提供一种液滴喷射装置和一种检测液滴喷射头中的喷射故障的方法，其能够通过对在预定时间段之后产生的参考脉冲的数量进行计数，从而检测墨滴喷射头中的喷射故障 液滴喷射操作。 本发明的液滴喷射装置包括：多个液滴喷射头，每个液滴喷射头包括隔膜，使振动板移位的致动器; 驱动每个液滴喷射头的致动器的驱动电路; 用于产生参考脉冲的脉冲发生装置; 减法计数器45，用于计数在预定时间段内产生的参考脉冲数; 以及喷射故障检测装置，用于根据在预定时间段内计数的计数器的计数值来检测液滴的喷射故障。

公开(公告)号：USRE38110E1

公开(公告)日：2003-05-06

申请号：US09816490

申请日：2001-03-23

申请人： Osamu Shinkawa ,  Kunio Koike

发明人： Osamu Shinkawa ,  Kunio Koike

IPC分类号： G04B100

CPC分类号： G04C11/00 ,  G04C10/00 ,  H02P3/04

摘要： An electronically controlled mechanical timepiece includes: a voltage-controlled oscillator (25) including a generator that uses a rotor (12) driven by a spring (1a) to rotate, and a brake circuit (23) for controlling the rotation cycle of the generator (20); and a rotation control circuit (50) for controlling the rotation cycle of the generator (20) by controlling the brake circuit (23). The rotation control circuit (50) includes a phase-comparison circuit (54) for comparing the phases of rectangular-wave pulses fr output from a VCO (25) and time standard signal fs, and a brake control circuit (56) for inputting, based on an output from the phase-comparison circuit (54), a signal for controlling the brake circuit (23) to voltage-controlled oscillator (25). By providing the VCO (25) and the phase-comparison circuit (54), PLL control is realized to enable a rapidly responsive system.

摘要翻译： 一种电子控制式机械钟表，包括：压控振荡器（25），包括使用由弹簧（1a）驱动的转子（12）旋转的发电机，以及用于控制发电机的旋转周期的制动电路（23） （20）; 以及通过控制制动电路（23）来控制发电机（20）的旋转周期的旋转控制电路（50）。 旋转控制电路（50）包括用于比较从VCO（25）输出的矩形波脉冲fr和时间标准信号fs的相位的相位比较电路（54）和用于输入VCO 基于来自相位比较电路（54）的输出，将用于将制动电路（23）控制到压控振荡器（25）的信号。 通过提供VCO（25）和相位比较电路（54），实现了PLL控制以实现快速响应的系统。