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公开(公告)号：US20130135376A1
公开(公告)日：2013-05-30
申请号：US13661410
申请日：2012-10-26
发明人： Takeshi Ike
IPC分类号： B41J29/38
CPC分类号： B41J2/0451 , B41J2/0454 , B41J2/04563 , B41J2/0458 , B41J2/14129 , B41J2/14153 , B41J2/16579 , B41J2002/14354
摘要： The present invention has been made to judge the discharge state of each nozzle accurately at an appropriate timing. For this purpose, a printing apparatus using a printhead including a heater and a temperature sensor to detect a temperature of the heater has the following arrangement. A temporal change in a detected temperature is monitored upon driving the printhead. In the temperature dropping process, temperatures are extracted at plural points of a time interval including a timing at which a feature point of the temporal change in the detected temperature in normal discharge appears. The second derivative of the temperature is calculated and added to obtain a total sum. The total sum is compared with a threshold defined based on the characteristic of the temporal change in the monitored temperature in discharge failure, thereby judging whether to normally discharge ink.
摘要翻译： 本发明是在适当的时刻精确地判断各喷嘴的排出状态。 为此，使用包括加热器和温度传感器的打印头的打印装置来检测加热器的温度具有以下配置。 在驱动打印头时监测检测温度的时间变化。 在降温处理中，在包括正常放电中的检测温度的时间变化的特征点出现的时刻的时间间隔的多个点处提取温度。 计算和加入温度的二阶导数以获得总和。 将总和与基于放电故障中监视的温度的时间变化的特性定义的阈值进行比较，从而判断是否正常地排出墨。
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2.发明申请BASE, LIQUID DISCHARGE HEAD, PRINTING APPARATUS, AND METHOD FOR DETERMINING LIQUID DISCHARGE STATUS 有权底座，液体排出头，打印装置和用于确定液体排放状态的方法公开(公告)号：US20150321470A1
公开(公告)日：2015-11-12
申请号：US14695318
申请日：2015-04-24
发明人： Takeshi Ike
CPC分类号： B41J2/14153 , B41J2/0451 , B41J2/0454 , B41J2/04563 , B41J2/0458 , B41J2/04585 , B41J2/14427 , B41J2002/14354
摘要： An embodiment of this invention is directed to determining a discharge status of liquid discharged from a liquid discharge head capable of accurately determining the discharge status of each nozzle at high speed with a simple arrangement. According to the embodiment, a base includes an electrothermal transducer configured to supply heat to liquid, a first temperature detection element configured to detect the temperature of the electrothermal transducer, and a second temperature detection element configured to detect the temperature of the same electrothermal transducer. In this case, the first and the second temperature detection elements are arranged so that at least part of each of the first and second temperature detection elements is included immediately above or below a region where the electrothermal transducer is arranged in the base.
摘要翻译： 本发明的一个实施例涉及确定从液体排出头排出的液体的放电状态，其能够以简单的布置精确地确定每个喷嘴的排出状态。 根据实施例，基座包括被配置为向液体供应热量的电热转换器，被配置为检测电热换能器的温度的第一温度检测元件以及被配置为检测相同电热换能器的温度的第二温度检测元件。 在这种情况下，第一和第二温度检测元件被布置成使得第一和第二温度检测元件中的每一个的至少一部分被包括在电热转换器布置在基座中的区域的正上方或下方。
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公开(公告)号：US09114611B2
公开(公告)日：2015-08-25
申请号：US14219504
申请日：2014-03-19
发明人： Takeshi Ike
CPC分类号： B41J2/125 , B41J2/0451 , B41J2/04563 , B41J2/0458 , B41J2/05 , B41J2/14153 , B41J2002/14354
摘要： An embodiment of this invention is directed to determination of the ink discharge state of a printhead capable of accurately determining the discharge state of each nozzle while suppressing increases in the size and cost of an apparatus. In the embodiment, the ink discharge state of a printing apparatus including a printhead including a heater for discharging ink and a temperature sensor, and a driving unit configured to drive the heater is determined as follows. It is controlled to drive the heater by applying the first voltage for discharging ink, and drive the heater by applying the second voltage enough not to discharge the ink. Whether ink is normally discharged or discharge failure has occurred is determined based on information obtained from detected plural temperatures in regard to the application timing of the second voltage.
摘要翻译： 本发明的实施例涉及确定能够精确地确定每个喷嘴的排出状态的打印头的喷墨状态，同时抑制装置的尺寸和成本的增加。 在本实施例中，包括包括用于排出墨的加热器和温度传感器的打印头的打印设备的排墨状态以及驱动加热器的驱动单元被确定如下。 通过施加用于排出墨水的第一电压来驱动加热器，并通过施加足以不排出墨的第二电压来驱动加热器。 基于从检测到的多个温度获得的关于第二电压的施加定时的信息来确定墨水是否正常放电或放电故障是否发生。
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公开(公告)号：US09097591B2
公开(公告)日：2015-08-04
申请号：US14224496
申请日：2014-03-25
发明人： Takeshi Ike
IPC分类号： B41J29/393 , G01K7/16 , B41J2/045 , B41J2/165 , B41J2/05
CPC分类号： G01K7/16 , B41J2/0451 , B41J2/04563 , B41J2/05 , B41J2/16579
摘要： An inkjet printing apparatus includes a current source configured to be able to supply, to a resistance sensor, a constant current of the first constant current value and a constant current of the second constant current value larger than the first constant current value. A change of the resistance value of the resistance sensor is detected by switching the value of the constant current to be supplied to the resistance sensor between the first constant current value and the second constant current value a predetermined time after driving a heater to discharge an ink droplet.
摘要翻译： 喷墨打印设备包括：电流源，被配置为能够向电阻传感器提供第一恒定电流值的恒定电流和大于第一恒定电流值的第二恒定电流值的恒定电流。 通过在驱动加热器以排出墨水之后的预定时间内切换要提供给电阻传感器的恒定电流值在第一恒定电流值和第二恒定电流值之间来检测电阻传感器的电阻值的变化 水滴。
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公开(公告)号：US20140292891A1
公开(公告)日：2014-10-02
申请号：US14224496
申请日：2014-03-25
发明人： Takeshi Ike
CPC分类号： G01K7/16 , B41J2/0451 , B41J2/04563 , B41J2/05 , B41J2/16579
摘要： An inkjet printing apparatus includes a current source configured to be able to supply, to a resistance sensor, a constant current of the first constant current value and a constant current of the second constant current value larger than the first constant current value. A change of the resistance value of the resistance sensor is detected by switching the value of the constant current to be supplied to the resistance sensor between the first constant current value and the second constant current value a predetermined time after driving a heater to discharge an ink droplet.
摘要翻译： 喷墨打印设备包括：电流源，被配置为能够向电阻传感器提供第一恒定电流值的恒定电流和大于第一恒定电流值的第二恒定电流值的恒定电流。 通过在驱动加热器以排出墨水之后的预定时间内切换要提供给电阻传感器的恒定电流值在第一恒定电流值和第二恒定电流值之间来检测电阻传感器的电阻值的变化 水滴。
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6.发明授权公开(公告)号：US09597871B2
公开(公告)日：2017-03-21
申请号：US14695318
申请日：2015-04-24
发明人： Takeshi Ike
CPC分类号： B41J2/14153 , B41J2/0451 , B41J2/0454 , B41J2/04563 , B41J2/0458 , B41J2/04585 , B41J2/14427 , B41J2002/14354
摘要： An embodiment of this invention is directed to determining a discharge status of liquid discharged from a liquid discharge head capable of accurately determining the discharge status of each nozzle at high speed with a simple arrangement. According to the embodiment, a base includes an electrothermal transducer configured to supply heat to liquid, a first temperature detection element configured to detect the temperature of the electrothermal transducer, and a second temperature detection element configured to detect the temperature of the same electrothermal transducer. In this case, the first and the second temperature detection elements are arranged so that at least part of each of the first and second temperature detection elements is included immediately above or below a region where the electrothermal transducer is arranged in the base.
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公开(公告)号：US20140300657A1
公开(公告)日：2014-10-09
申请号：US14219504
申请日：2014-03-19
发明人： Takeshi Ike
CPC分类号： B41J2/125 , B41J2/0451 , B41J2/04563 , B41J2/0458 , B41J2/05 , B41J2/14153 , B41J2002/14354
摘要： An embodiment of this invention is directed to determination of the ink discharge state of a printhead capable of accurately determining the discharge state of each nozzle while suppressing increases in the size and cost of an apparatus. In the embodiment, the ink discharge state of a printing apparatus including a printhead including a heater for discharging ink and a temperature sensor, and a driving unit configured to drive the heater is determined as follows. It is controlled to drive the heater by applying the first voltage for discharging ink, and drive the heater by applying the second voltage enough not to discharge the ink. Whether ink is normally discharged or discharge failure has occurred is determined based on information obtained from detected plural temperatures in regard to the application timing of the second voltage.
摘要翻译： 本发明的实施例涉及确定能够精确地确定每个喷嘴的排出状态的打印头的喷墨状态，同时抑制装置的尺寸和成本的增加。 在本实施例中，包括包括用于排出墨的加热器和温度传感器的打印头的打印设备的排墨状态以及驱动加热器的驱动单元被确定如下。 通过施加用于排出墨水的第一电压来驱动加热器，并通过施加足以不排出墨的第二电压来驱动加热器。 基于从检测到的多个温度获得的关于第二电压的施加定时的信息来确定墨水是否正常放电或放电故障是否发生。
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公开(公告)号：US08845064B2
公开(公告)日：2014-09-30
申请号：US13661581
申请日：2012-10-26
发明人： Takeshi Ike
IPC分类号： B41J29/393
CPC分类号： B41J2/0451 , B41J2/0454 , B41J2/04563 , B41J2/0458 , B41J2/14129 , B41J2/14153 , B41J2/16579 , B41J2002/14354
摘要： This invention has been made to judge the discharge state of each nozzle accurately at an appropriate timing. For this purpose, an apparatus using a printhead including a heater and a temperature sensor has the following arrangement. A temporal change in a detected temperature is monitored upon driving the printhead. During the temperature drop, temperatures are extracted at plural points of a time interval including a timing at which a feature point of the temporal change in the detected temperature in normal discharge appears. The second derivative of the temperature is calculated and added to obtain a total sum and intermediate sum. The total sum is compared with predetermined first and second thresholds to judge whether to normally discharge ink. If normal discharge or discharge failure is uncertain, the intermediate sum is compared with a third threshold for final judgment.
摘要翻译： 本发明是在适当的时刻精确地判断各喷嘴的排出状态。 为此，使用包括加热器和温度传感器的打印头的设备具有以下配置。 在驱动打印头时监测检测温度的时间变化。 在温度下降期间，在包括正常放电中的检测温度的时间变化的特征点出现的时刻的时间间隔的多个点处提取温度。 计算和加上温度的二阶导数以获得总和和中间和。 将总和与预定的第一和第二阈值进行比较，以判断是否正常地排出墨。 如果正常放电或放电故障不确定，则将中间和与第三阈值进行比较以进行最终判断。
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公开(公告)号：US08733876B2
公开(公告)日：2014-05-27
申请号：US13661410
申请日：2012-10-26
发明人： Takeshi Ike
IPC分类号： B41J29/38 , B41J29/393
CPC分类号： B41J2/0451 , B41J2/0454 , B41J2/04563 , B41J2/0458 , B41J2/14129 , B41J2/14153 , B41J2/16579 , B41J2002/14354
摘要： The present invention has been made to judge the discharge state of each nozzle accurately at an appropriate timing. For this purpose, a printing apparatus using a printhead including a heater and a temperature sensor to detect a temperature of the heater has the following arrangement. A temporal change in a detected temperature is monitored upon driving the printhead. In the temperature dropping process, temperatures are extracted at plural points of a time interval including a timing at which a feature point of the temporal change in the detected temperature in normal discharge appears. The second derivative of the temperature is calculated and added to obtain a total sum. The total sum is compared with a threshold defined based on the characteristic of the temporal change in the monitored temperature in discharge failure, thereby judging whether to normally discharge ink.
摘要翻译： 本发明是在适当的时刻精确地判断各喷嘴的排出状态。 为此，使用包括加热器和温度传感器的打印头的打印装置来检测加热器的温度具有以下配置。 在驱动打印头时监测检测温度的时间变化。 在降温处理中，在包括正常放电中的检测温度的时间变化的特征点出现的时刻的时间间隔的多个点处提取温度。 计算和加入温度的二阶导数以获得总和。 将总和与基于放电故障中监视的温度的时间变化的特性定义的阈值进行比较，从而判断是否正常地排出墨。
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公开(公告)号：US20130135381A1
公开(公告)日：2013-05-30
申请号：US13661581
申请日：2012-10-26
发明人： Takeshi Ike
IPC分类号： B41J29/38
CPC分类号： B41J2/0451 , B41J2/0454 , B41J2/04563 , B41J2/0458 , B41J2/14129 , B41J2/14153 , B41J2/16579 , B41J2002/14354
摘要： This invention has been made to judge the discharge state of each nozzle accurately at an appropriate timing. For this purpose, an apparatus using a printhead including a heater and a temperature sensor has the following arrangement. A temporal change in a detected temperature is monitored upon driving the printhead. During the temperature drop, temperatures are extracted at plural points of a time interval including a timing at which a feature point of the temporal change in the detected temperature in normal discharge appears. The second derivative of the temperature is calculated and added to obtain a total sum and intermediate sum. The total sum is compared with predetermined first and second thresholds to judge whether to normally discharge ink. If normal discharge or discharge failure is uncertain, the intermediate sum is compared with a third threshold for final judgment.
摘要翻译： 本发明是在适当的时刻精确地判断各喷嘴的排出状态。 为此，使用包括加热器和温度传感器的打印头的设备具有以下配置。 在驱动打印头时监测检测温度的时间变化。 在温度下降期间，在包括正常放电中的检测温度的时间变化的特征点出现的时刻的时间间隔的多个点处提取温度。 计算和加上温度的二阶导数以获得总和和中间和。 将总和与预定的第一和第二阈值进行比较，以判断是否正常地排出墨。 如果正常放电或放电故障不确定，则将中间和与第三阈值进行比较以进行最终判断。
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