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    • 1. 发明授权
    • Temperature control of thermal inkjet printheads by using synchronous
non-nucleating pulses
    • 使用同步非成核脉冲对热喷墨打印头进行温度控制
    • US5736995A
    • 1998-04-07
    • US520225
    • 1995-08-28
    • Jaime H. BohorquezGeorge H. CorriganKing-Wah W. Yeung
    • Jaime H. BohorquezGeorge H. CorriganKing-Wah W. Yeung
    • B41J2/05
    • B41J2/04528B41J2/04563B41J2/0458
    • A technique for controlling print quality in an inkjet printer by delivering synchronized heating, non-printing pulses and printing pulses to the ink firing resistors during print firing operations such as during the printing of a swath. A temperature of the printhead substrate is measured and compared against a reference temperature during printing operations. If the measured temperature is below the reference temperature, then the printhead substrate is heated during the printing operations to bring the substrate up to the reference temperature. The heating is done by delivering synchronized heating non-printing pulses and printing pulses to the ink firing resistors during selected print firing periods, wherein either the heating pulses or the printing pulses, but not both, occur during a selected print firing period. The heating pulses are logically OR-ed with the printing pulses to achieve the synchronization.
    • 一种用于通过在诸如在打印条带期间的打印操作期间通过将同步加热,非打印脉冲和打印脉冲传送到喷墨电阻器来控制喷墨打印机中的打印质量的技术。 在打印操作期间测量打印头基板的温度并与参考温度进行比较。 如果测量的温度低于参考温度,则打印头基板在打印操作期间被加热,以使基板达到参考温度。 加热是通过在所选择的打印发射周期期间将同步的加热非打印脉冲和打印脉冲递送到喷墨电阻器来完成的,其中加热脉冲或打印脉冲,而不是两者都在选定的打印发射周期期间发生。 加热脉冲与打印脉冲进行逻辑或运算,以实现同步。
    • 3. 发明授权
    • Thermal inkjet printhead warming circuit
    • 热喷墨打印头加热电路
    • US5992979A
    • 1999-11-30
    • US99119
    • 1998-06-17
    • Michael J. BarbourGeorge H. Corrigan
    • Michael J. BarbourGeorge H. Corrigan
    • B41J2/05B41J2/14
    • B41J2/04528B41J2/04541B41J2/04563B41J2/0458B41J2/14072
    • For each printhead nozzle, nozzle circuitry includes a warming transistor, drive transistor and heating resistor. To maintain a threshold temperature at the printhead, a warming pulse is sent from the warming transistor to the heating resistor of one or more nozzles when the temperature falls below a prescribed temperature. To fire a nozzle a firing pulse is output from the drive transistor to the heating resistor. The warming transistor is laid out as a segmented portion of the drive transistor layout area. No layout penalty is incurred by including the warming transistor for each nozzle. The source of a warming transistor is coupled in common to the source of a drive transistor. The drain of the warming transistor is coupled in common to the drain of the drive transistor. The gates are separate. The gates receive respective warming or firing control signals. The drains are coupled to the heating resistor.
    • 对于每个打印头喷嘴,喷嘴电路包括加温晶体管,驱动晶体管和加热电阻器。 为了保持打印头的阈值温度,当温度低于规定温度时,加温脉冲从加温晶体管发送到一个或多个喷嘴的加热电阻器。 为了点燃喷嘴,从驱动晶体管向发热电阻器输出点火脉冲。 加热晶体管布置为驱动晶体管布局区域的分段部分。 通过包括每个喷嘴的加温晶体管不会造成布局损失。 加温晶体管的源极共同连接到驱动晶体管的源极。 加热晶体管的漏极共同耦合到驱动晶体管的漏极。 门是分开的。 门接收各自的升温或点火控制信号。 排水管连接到加热电阻器。
    • 8. 发明授权
    • Thermal ink jet print head and temperature control apparatus and method
    • 热喷墨打印头和温度控制装置及方法
    • US06231154B1
    • 2001-05-15
    • US09651205
    • 2000-08-30
    • George H. Corrigan
    • George H. Corrigan
    • B41J2938
    • B41J2/04528B41J2/04543B41J2/04563B41J2/0457B41J2/04573B41J2/0458B41J2/04581
    • A thermal ink jet print head with numerous firing elements on a die, and a temperature sensor on the die with a sensor voltage output proportional to a sensed temperature. A digital to analog converter has a digital input and an output voltage proportional to the value of a digital word received by the digital input, and a comparator has a first input connected to the sensor voltage output and a second input connected to the converter voltage output. The comparator generates an equivalency signal when the converter output voltage exceeds the sensor output voltage. The print head may have a temperature controller that compares the digital word to a preselected temperature threshold value to determine if the temperature is within a selected range, and which changes the temperature of the die in response to a determination that the temperature is outside of the selected range.
    • 具有在模具上的许多点火元件的热喷墨打印头和模具上的温度传感器,其传感器电压输出与感测温度成比例。 数模转换器具有与数字输入接收的数字字的值成比例的数字输入和输出电压,比较器具有连接到传感器电压输出的第一输入端和连接到转换器电压输出的第二输入端 。 当转换器输出电压超过传感器输出电压时,比较器产生等效信号。 打印头可以具有温度控制器,该温度控制器将数字字与预选的温度阈值进行比较,以确定温度是否在选定范围内,并且响应于确定温度在 选择范围。
    • 9. 发明授权
    • Thermal ink jet print head and printer temperature control apparatus and
method
    • 热喷墨打印头和打印机温度控制装置及方法
    • US6154229A
    • 2000-11-28
    • US959639
    • 1997-10-28
    • George H. Corrigan
    • George H. Corrigan
    • B41J2/05B41J29/38
    • B41J2/04528B41J2/04543B41J2/04563B41J2/0457B41J2/04573B41J2/0458B41J2/04581
    • A thermal ink jet print head with numerous firing elements on a die, and a temperature sensor on the die with a sensor voltage output proportional to a sensed temperature. A digital to analog converter has a digital input and an output voltage proportional to the value of a digital word received by the digital input, and a comparator has a first input connected to the sensor voltage output and a second input connected to the converter voltage output. The comparator generates an equivalency signal when the converter output voltage exceeds the sensor output voltage. The print head may have a temperature controller that compares the digital word to a preselected temperature threshold value to determine if the temperature is within a selected range, and which changes the temperature of the die in response to a determination that the temperature is outside of the selected range.
    • 具有在模具上的许多点火元件的热喷墨打印头和模具上的温度传感器,其传感器电压输出与感测温度成比例。 数模转换器具有与数字输入接收的数字字的值成比例的数字输入和输出电压,比较器具有连接到传感器电压输出的第一输入端和连接到转换器电压输出的第二输入端 。 当转换器输出电压超过传感器输出电压时,比较器产生等效信号。 打印头可以具有温度控制器,该温度控制器将数字字与预选的温度阈值进行比较,以确定温度是否在选定范围内,并且响应于确定温度在 选择范围。