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    • 62. 发明授权
    • Apparatus and method for heating ink jet printhead
    • 喷墨打印头加热装置和方法
    • US06286924B1
    • 2001-09-11
    • US09395668
    • 1999-09-14
    • Adam Jude AhneFrank Edward Anderson
    • Adam Jude AhneFrank Edward Anderson
    • B41J2938
    • B41J2/04528B41J2/04541B41J2/04563B41J2/0458
    • An apparatus and method for heating an ink jet printhead by using pass transistors to generate heat and warm the substrate of the printhead. The ink jet printhead has a plurality of ink jet printhead nozzle. Each nozzle is controlled by a circuit. The circuit includes a drive transistor that is electrically coupled to a heating resistor, an enable transistor and a plurality of pass transistors. When the circuit receives a control signal having at least a first component and a second component, the first component being input to the gate of at least one pass transistor causing it to be active and generate a first output signal sufficient to activate the drive transistor, and the second component being input to the gate of the enable transistor causing the enable transistor to be active, a first current passes the heating resistor sufficient to cause a nozzle to fire, and a second current flows through both the at least one pass transistor and the enable transistor sufficient to generate heat and warm the substrate.
    • 一种通过使用传输晶体管来加热喷墨打印头以产生热量并使打印头的基板温暖的装置和方法。 喷墨打印头具有多个喷墨打印头喷嘴。 每个喷嘴由电路控制。 电路包括电耦合到加热电阻器,使能晶体管和多个通过晶体管的驱动晶体管。 当电路接收到具有至少第一分量和第二分量的控制信号时,第一分量被输入到至少一个传输晶体管的栅极,使其成为有效的并产生足以激活驱动晶体管的第一输出信号, 并且所述第二分量被输入到所述使能晶体管的栅极,使得所述使能晶体管处于活动状态,所述第一电流使所述加热电阻器通过所述加热电阻器足以引起喷嘴引发,并且第二电流流过所述至少一个传输晶体管和 使能晶体管足以产生热量并使衬底温暖。
    • 63. 发明授权
    • Ink jet printing apparatus having redundant nozzles
    • 具有冗余喷嘴的喷墨打印设备
    • US6076910A
    • 2000-06-20
    • US964362
    • 1997-11-04
    • Frank Edward Anderson
    • Frank Edward Anderson
    • B41J2/01B41J2/05B41J2/125B41J2/165B41J2/21B41J29/38
    • B41J2/2139
    • An ink jet printing apparatus is provided comprising a print cartridge including a heater chip and a nozzle plate coupled to the heater chip. The heater chip has first, second, third and fourth heating elements, and the nozzle plate has a plurality of primary and secondary nozzles. The primary nozzles include first and second nozzles positioned in first and second nozzle plate columns and the secondary nozzles include third and fourth nozzles positioned in third and fourth nozzle plate columns. Each of the nozzles has one of the heating elements associated therewith for generating energy to discharge ink therefrom. The apparatus further includes a driver circuit, electrically coupled to the print cartridge, for applying firing pulses to the heating elements. The apparatus further includes a nozzle testing station. There, each nozzle is tested to determine if it is operable.
    • 提供了一种喷墨打印设备,其包括一个包括加热器芯片和连接到加热器芯片的喷嘴板的打印盒。 加热器芯片具有第一,第二,第三和第四加热元件,并且喷嘴板具有多个初级和次级喷嘴。 主喷嘴包括位于第一和第二喷嘴板列中的第一和第二喷嘴,次要喷嘴包括位于第三和第四喷嘴板列中的第三和第四喷嘴。 每个喷嘴具有与其相关联的一个加热元件,用于产生从其中排出油墨的能量。 该装置还包括驱动电路,其电耦合到打印盒,用于向加热元件施加点火脉冲。 该设备还包括喷嘴测试站。 在那里,测试每个喷嘴以确定其是否可操作。