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    • 4. 发明授权
    • Liquid ejecting apparatus and liquid ejecting method
    • 液体喷射装置和液体喷射方法
    • US08657398B2
    • 2014-02-25
    • US13422991
    • 2012-03-16
    • Noboru Tamura
    • Noboru Tamura
    • B41J29/38
    • B41J2/04581B41J2/04541B41J2/04555B41J2/04578B41J2/0458B41J2/04588B41J2/04593B41J2/04596
    • A liquid ejecting apparatus including, a control unit including a digital signal generation unit which generates a digital signal defining the shape of the signal waveform, an analog voltage signal generation unit which generates an analog voltage signal on the basis of the digital signal, and a current signal generation unit which generates a current signal of a magnitude corresponding to a waveform of the analog voltage signal, a head unit including, a voltage signal generation unit which generates a voltage signal by detecting a potential difference between two points which are different from each other in a path to which the current signal flows, and by amplifying the potential difference, and an element which is driven by the voltage signal, and causes liquid to be ejected from a nozzle, and a transmission unit which transmits the current signal to the head unit from the control unit.
    • 一种液体喷射装置,包括:控制单元,包括产生限定信号波形形状的数字信号的数字信号产生单元,基于数字信号产生模拟电压信号的模拟电压信号产生单元,以及 电流信号产生单元,其生成与模拟电压信号的波形相对应的幅度的电流信号;头单元,包括:电压信号生成单元,其通过检测与每个不同的两个点之间的电位差产生电压信号 电流信号流过的路径中的另一个,通过放大电位差,以及由电压信号驱动的元件,并使液体从喷嘴喷射;以及发送单元,其将电流信号发送到 控制单元的头单元。
    • 6. 发明申请
    • LIQUID EJECTING APPARATUS
    • 液体喷射装置
    • US20110242162A1
    • 2011-10-06
    • US13045096
    • 2011-03-10
    • Noboru TAMURA
    • Noboru TAMURA
    • B41J29/38
    • B41J29/38B41J2/125
    • A liquid ejecting apparatus having a missing dot detection function capable of performing rapid and accurate missing dot detection with a simple configuration is provided. A liquid ejecting apparatus having a recording head that performs an ejection of ink droplets through nozzle orifices toward a recording sheet includes the recording head having a pair of electrodes electrically disconnected from each other and disposed around the nozzle orifices, wherein the ink droplets have a conductive property; continuity detector that detects the electrodes are electrically connected or disconnected during the ejection; and control means that controls the ejection of the ink droplets by the recording head.
    • 提供了具有能够以简单配置执行快速且准确的缺失点检测的漏点检测功能的液体喷射装置。 一种液体喷射装置,其具有通过喷嘴孔朝向记录片材喷射墨滴的记录头,包括具有彼此电气断开并设置在喷嘴孔周围的一对电极的记录头,其中墨滴具有导电性 属性; 检测电极的连续性检测器在喷射期间电连接或断开; 以及控制装置,其控制由记录头喷射的墨滴。
    • 9. 发明申请
    • DRIVING CIRCUIT FOR CAPACITIVE LOAD AND FLUID INJECTING DEVICE
    • 用于电力负载和流体注入装置的驱动电路
    • US20090189453A1
    • 2009-07-30
    • US12363451
    • 2009-01-30
    • Koji KitazawaNoboru Tamura
    • Koji KitazawaNoboru Tamura
    • H02J1/10
    • H02M3/07B41J2/0452B41J2/0455B41J2/04581B41J2/04588B41J2/14274Y10T307/653
    • A driving circuit that drives a capacitive load includes a drive signal generator that generates a drive signal driving the capacitive load via a transistor pair in response to an analog signal, and a power-source voltage generator that generates a high-voltage power-source voltage and a low-voltage power-source voltage and that supplies the high-voltage power-source voltage and the low-voltage power-source voltage respectively to collectors of the transistors of the transistor pair via a high-voltage output terminal and a low-voltage output terminal. The power-source voltage generator includes multiple power sources connected in parallel, a backcurrent prevention diode connected between the adjacent power sources, and a switch unit that connects the adjacent power sources in series under the on-off control of a controller each time the drive signal rises above a predetermined threshold value or falls below a predetermined threshold value.
    • 驱动电容性负载的驱动电路包括:驱动信号发生器,其响应于模拟信号产生经由晶体管对驱动电容性负载的驱动信号;以及电源电压发生器,其产生高压电源电压 和低压电源电压,分别经由高压输出端子和低压电源电压将高压电源电压和低压电源电压分别提供给晶体管对的晶体管的集电极, 电压输出端子。 电源电压发生器包括并联连接的多个电源,连接在相邻电源之间的防回流二极管,以及每个驱动器在控制器的开 - 关控制下串联连接相邻电源的开关单元 信号上升到高于预定阈值或低于预定阈值。
    • 10. 发明授权
    • Liquid ejection apparatus, drive signal application method, and liquid ejection method
    • 液体喷射装置,驱动信号施加方法和液体喷射方法
    • US07537299B2
    • 2009-05-26
    • US11238052
    • 2005-09-29
    • Noboru Tamura
    • Noboru Tamura
    • B41J29/38
    • B41J2/04541B41J2/04546B41J2/0458B41J2/04581B41J2/04588B41J2/04593B41J2/04596
    • The liquid ejection apparatus includes: (A) a drive signal generation section generating first and second drive signals to be applied to an element that can execute a liquid-ejection operation; (B) a data output section outputting first selection data for setting an application state of the first drive signal to the element, and second selection data for setting an application state of the second drive signal to the element; (C) a data inspection section inspecting the first and second selection data having been output from the data output section, and outputting inspected first selection data and inspected second selection data, wherein if the first and second selection data indicate that the first and second drive signals are to be applied to the element simultaneously, then the data inspection section continues to output the inspected first- and inspected second selection data that had been output up to then; and (D) a switch section including a first switch that controls application of the first drive signal to the element based on the inspected first selection data, and a second switch that controls application of the second drive signal to the element based on the inspected second selection data. Accordingly, it is possible to prevent a plurality of switches from entering the ON state simultaneously.
    • 液体喷射装置包括:(A)驱动信号产生部分,产生要施加到能够执行液体喷射操作的元件的第一和第二驱动信号; (B)数据输出部分,输出用于将第一驱动信号的应用状态设置到元件的第一选择数据,以及用于将第二驱动信号的应用状态设置到元件的第二选择数据; (C)检查从数据输出部输出的第一选择数据和第二选择数据的数据检查部,输出被检查的第一选择数据和被检查的第二选择数据,其中,如果第一和第二选择数据表示第一和第二驱动 信号同时施加到元件上,然后数据检查部分继续输出已被输出的被检查的第一和第二选择数据; 和(D)开关部分,包括:第一开关,其基于被检查的第一选择数据控制第一驱动信号施加到元件;以及第二开关,其基于被检查的第二开关控制第二驱动信号施加到元件 选择数据。 因此,可以防止多个开关同时进入接通状态。