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    Electronic spot size control in a thermal ink jet printer
    3.
    发明授权
    Electronic spot size control in a thermal ink jet printer 失效
    热喷墨打印机中的电子光点尺寸控制

    公开(公告)号：US5223853A

    公开(公告)日：1993-06-29

    申请号：US840239

    申请日：1992-02-24

    申请人： Joseph J. Wysocki ,  William G. Hawkins ,  Gary A. Kneezel ,  Richard V. LaDonna ,  Joseph F. Stephany ,  Thomas A. Tellier ,  Thomas E. Watrobski

    发明人： Joseph J. Wysocki ,  William G. Hawkins ,  Gary A. Kneezel ,  Richard V. LaDonna ,  Joseph F. Stephany ,  Thomas A. Tellier ,  Thomas E. Watrobski

    IPC分类号： B41J2/05 ,  B41J2/125 ,  G01D15/18

    CPC分类号： B41J2/04541 ,  B41J2/04563 ,  B41J2/0458 ,  B41J2/04593 ,  B41J2/2128

    摘要： A system controls an ink jet printing apparatus for propelling ink jet droplets on demand from a printhead having a plurality of drop ejectors. In the printhead, each ejector includes a heating element actuable in response to electrical input signals, each input signal having an amplitude and a time duration, selectably applied to the heating element to produce a temporary vapor bubble and cause a quantity of ink to be emitted for the creation of a mark on a copy sheet. The temperature of ink in the printhead is sensed, and a combination of power level and time duration of the electrical input signal for the heating element to result in a desired size of the mark of the copy sheet is selected, by entering the sensed temperature of the ink into a predetermined function relating the energy of the electrical input signal to the corresponding resulting size of the mark on the copy sheet.

    摘要翻译： 系统控制喷墨打印设备，用于根据需要从具有多个液滴喷射器的打印头推进喷墨滴。 在打印头中，每个喷射器包括可响应于电输入信号而致动的加热元件，每个输入信号具有可选择地施加到加热元件的振幅和持续时间，以产生暂时的蒸汽气泡并导致一定量的墨水被排出 用于在复印纸上创建标记。 感测到打印头中的墨水的温度，并且通过输入检测到的温度来选择加热元件的电输入信号的持续时间的组合以产生所需的复印纸的标记尺寸 油墨成为将电输入信号的能量与复印纸上的标记的相应结果尺寸相关联的预定功能。

    Calibration system for a thermal ink-jet printer
    6.
    发明授权
    Calibration system for a thermal ink-jet printer 失效
    热喷墨打印机的校准系统

    公开(公告)号：US5519419A

    公开(公告)日：1996-05-21

    申请号：US198756

    申请日：1994-02-18

    申请人： Joseph F. Stephany ,  Gary A. Kneezel ,  Richard V. LaDonna ,  Thomas E. Watrobski ,  Joseph J. Wysocki ,  James Eaton

    发明人： Joseph F. Stephany ,  Gary A. Kneezel ,  Richard V. LaDonna ,  Thomas E. Watrobski ,  Joseph J. Wysocki ,  James Eaton

    IPC分类号： B41J2/205 ,  B41J2/05 ,  B41J2/12 ,  B41J2/21 ,  B41J29/393 ,  H04N1/407

    CPC分类号： B41J2/04563 ,  B41J2/0458 ,  B41J2/2128 ,  B41J2/2135 ,  B41J29/393 ,  H04N1/4076

    摘要： A thermal ink-jet printhead adapted to emit ink onto a print sheet is automatically adjusted. The printhead is caused to emit ink onto a sheet in a manner consistent with an image of a first density, and then substantially immediately caused to emit ink in the form of a first test pattern on the sheet. The density of the first test pattern on the sheet is measured. The printhead is caused to emit ink onto the sheet in a manner consistent with an image of a second density, and then substantially immediately caused to emit ink in the form of a second test pattern on the sheet. The density of the second test pattern on the sheet is measured. The densities of the first test pattern and the second test pattern are correlated with a function relating a characteristic of an image printed with the printhead to a temperature of the printhead.

    摘要翻译： 自动调节适于将墨喷射到打印纸上的热喷墨打印头。 使得打印头以与第一密度的图像一致的方式将墨喷射到片材上，然后基本上立即在片材上以第一测试图案的形式发出墨水。 测量片材上第一测试图案的密度。 使得打印头以与第二密度的图像一致的方式将墨喷射到片材上，然后基本上立即在片材上以第二测试图案的形式发出墨水。 测量片材上第二测试图案的密度。 第一测试图案和第二测试图案的密度与将打印头打印的图像的特性相关联的功能与打印头的温度相关联。

    Power control system for a printer
    7.
    发明授权
    Power control system for a printer 失效
    打印机电源控制系统

    公开(公告)号：US5519417A

    公开(公告)日：1996-05-21

    申请号：US220720

    申请日：1994-03-31

    申请人： Joseph F. Stephany ,  Juan J. Becerra ,  Peter J. John ,  Gary A. Kneezel ,  Richard V. LaDonna ,  Thomas E. Watrobski ,  Joseph J. Wysocki

    发明人： Joseph F. Stephany ,  Juan J. Becerra ,  Peter J. John ,  Gary A. Kneezel ,  Richard V. LaDonna ,  Thomas E. Watrobski ,  Joseph J. Wysocki

    IPC分类号： B41J2/05 ,  B41J2/07

    CPC分类号： B41J2/04541 ,  B41J2/04548 ,  B41J2/04563 ,  B41J2/0458

    摘要： A control system for a printer having at least one heating element for producing spots applies one of a plurality of voltage levels to at least one heating element disposed on a printhead. A voltage supply supplies a voltage to a first one of a plurality of switches connected in series with a last one of the switches being connected to the at least one heating element. At least one of the switches defines a first path and a second path having different voltage drops. A controller coupled to the plurality of switches selectively actuates the switches to apply one of a plurality of predetermined voltages to the at least one heating element.

    摘要翻译： 具有用于产生点的至少一个加热元件的打印机的控制系统将多个电压电平中的一个施加到设置在打印头上的至少一个加热元件。 电压源向与所述至少一个加热元件连接的最后一个开关串联连接的多个开关中的第一个提供电压。 至少一个开关限定具有不同电压降的第一路径和第二路径。 耦合到所述多个开关的控制器选择性地致动所述开关以向所述至少一个加热元件施加多个预定电压中的一个。

    Voltage drop correction for ink jet printer
    9.
    发明授权
    Voltage drop correction for ink jet printer 失效
    喷墨打印机的电压降校正

    公开(公告)号：US5497174A

    公开(公告)日：1996-03-05

    申请号：US209050

    申请日：1994-03-11

    申请人： Joseph F. Stephany ,  Juan J. Becerra ,  Thomas P. Courtney ,  Gary A. Kneezel ,  Richard V. LaDonna ,  Peter J. John ,  Thomas E. Watrobski ,  Joseph J. Wysocki

    发明人： Joseph F. Stephany ,  Juan J. Becerra ,  Thomas P. Courtney ,  Gary A. Kneezel ,  Richard V. LaDonna ,  Peter J. John ,  Thomas E. Watrobski ,  Joseph J. Wysocki

    IPC分类号： B41J2/05

    CPC分类号： B41J2/04568 ,  B41J2/04573 ,  B41J2/0458 ,  B41J2/04588

    摘要： An apparatus and method compensates for a voltage drop of electrical pulse signals selectively applied to a plurality of heater elements on a printhead of an ink jet printing device. A number of heater elements to be pulsed at a given time is determined and a time duration of each of the pulse signals is selected based on information including the determined number of heater elements to be pulsed. In another aspect, the position on the printhead of the heater elements to be pulsed is determined and the time duration of the pulse signals is selected further based on the determined position. By varying the time duration of the pulse signals applied to the heater elements, a voltage drop across the heater elements due to the number of heater elements simultaneously pulsed and/or the position of the heater elements on the printhead is compensated for, maintaining reliable jetting performance while minimizing the voltage by which operating printing voltage needs to exceed the threshold printing voltage.

    摘要翻译： 一种装置和方法补偿了选择性地施加到喷墨打印装置的打印头上的多个加热器元件的电脉冲信号的电压降。 确定在给定时间被脉冲的多个加热器元件，并且基于包括确定的要被脉冲的加热器元件的数量的信息来选择每个脉冲信号的持续时间。 在另一方面，确定要被脉冲的加热器元件的打印头上的位置，并且基于所确定的位置进一步选择脉冲信号的持续时间。 通过改变施加到加热器元件的脉冲信号的持续时间，补偿由于同时脉冲的加热器元件的数量和/或打印头上的加热器元件的位置而导致的加热器元件上的电压降，以保持可靠的喷射 同时最小化操作印刷电压需要超过阈值印刷电压的电压。