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21. 发明申请

US20210187941A1 ELEMENT SUBSTRATE, LIQUID DISCHARGE HEAD, AND PRINTING APPARATUS 有权
公开(公告)号：US20210187941A1
公开(公告)日：2021-06-24
申请号：US17123827
申请日：2020-12-16
申请人： CANON KABUSHIKI KAISHA
发明人： Ryo Kasai , Toshio Negishi , Nobuyuki Hirayama
IPC分类号： B41J2/045 , B41J2/14
摘要： In a head substrate according to an embodiment of the present invention comprises a plurality of nozzles for discharging liquid; a plurality of electrothermal transducers corresponding to the plurality of nozzles; and a plurality of drivers corresponding to the plurality of electrothermal transducers, the substrate has the following configuration. Specifically, it comprises a detection circuit that detects, in a case where one of the plurality of electrothermal transducers is selected, a temperature of the selected transducer to which a first signal is applied to in order to discharge a liquid from a nozzle corresponding to the selected electrothermal transducer, and then a second signal is applied to heat the selected electrothermal transducer.

22. 发明授权

US10960665B2 Element substrate, printhead, and printing apparatus 有权
公开(公告)号：US10960665B2
公开(公告)日：2021-03-30
申请号：US16361365
申请日：2019-03-22
申请人： CANON KABUSHIKI KAISHA
发明人： Hiroyasu Nomura , Nobuyuki Hirayama
IPC分类号： B41J2/045 , B41J2/14
摘要： An element substrate provided in a printhead includes a heater configured to heat ink and discharge the ink from a nozzle, a temperature sensor provided in correspondence with the heater, an electric current source configured to energize the temperature sensor with an electric current based on an electric current value specified by an externally input first signal, and a determination circuit configured to determine an ink discharge status of the nozzle based on a voltage output from the temperature sensor energized with the electric current and a threshold voltage specified by an externally input second signal, and output a determination result signal.

23. 发明申请

US20210086508A1 RECORDING APPARATUS AND METHOD OF CONTROLLING RECORDING APPARATUS 有权
公开(公告)号：US20210086508A1
公开(公告)日：2021-03-25
申请号：US17017049
申请日：2020-09-10
申请人： CANON KABUSHIKI KAISHA
发明人： Tomoki Ishiwata , Takatsugu Moriya , Nobuyuki Hirayama
IPC分类号： B41J2/045 , B41J2/165
摘要： A recording apparatus includes a liquid ejection head, where the liquid ejection head includes: an ejection port, a first substrate, and a temperature detection element. The ejection port ejects liquid and includes a protrusion extending toward an ejection port inside. The first substrate includes a heating element that ejects liquid from the ejection port using heat. The temperature detection element detects temperature of the first substrate. Driving of the heating element is controlled based on whether a difference between a voltage value Vp1 measured by the temperature detection element and a preset voltage value Vp01 has a positive value within or outside a predetermined range or a negative value outside the predetermined range. The voltage value Vp1 is measured when a temperature change amount becomes maximum in a temperature falling process of a second substrate located, after the heating element is driven, at a position corresponding to the heating element.

24. 发明申请

US20200180308A1 PRINTING APPARATUS AND METHOD OF DETERMINING MINIMUM DISCHARGE ENERGY 审中-公开
公开(公告)号：US20200180308A1
公开(公告)日：2020-06-11
申请号：US16701420
申请日：2019-12-03
申请人： CANON KABUSHIKI KAISHA
发明人： Takatsugu Moriya , Masaki Oikawa , Nobuyuki Hirayama , Hiroyasu Nomura
IPC分类号： B41J2/045
摘要： A printing apparatus measures a temperature of an electrothermal transducer by a corresponding temperature detection element, detects, based on the measured temperature, a peak voltage which indicates a point of change, from a state where ink is discharged normally from a printhead to a state where the ink is not discharged from the printhead, and compares the peak voltage with a threshold value. The measurement, detection, and comparison are repeated until the peal voltage becomes equal to or more than the threshold value. Energy supplied to the electrothermal transducer at a time in which the peak voltage is determined to be equal to or more than the threshold is determined to be minimum discharge energy.

25. 发明申请

US20200086633A1 LIQUID DISCHARGE APPARATUS AND CONTROL METHOD THEREOF 审中-公开
公开(公告)号：US20200086633A1
公开(公告)日：2020-03-19
申请号：US16570361
申请日：2019-09-13
申请人： CANON KABUSHIKI KAISHA
发明人： Yuzuru Ishida , Maki Kato , Yoshinori Misumi , Nobuyuki Hirayama
IPC分类号： B41J2/045
摘要： A liquid discharge apparatus comprises: a plurality of anti-cavitation layers formed to cover heat generating elements at positions where the anti-cavitation layers contact the liquid; a monitoring unit that detects a current flowing through the anti-cavitation layers; a switching unit that switches whether to apply, to the heat generating elements, and a voltage for driving the heat generating elements, wherein the switching unit includes a plurality of switching units, and if the monitoring unit detects that the current larger than the predetermined value has flowed through the anti-cavitation layer while the voltage is applied to the heat generating elements, the control unit sequentially switches the plurality of switching units, and specifies the heat generating element corresponding to the anti-cavitation layer through which the current has flowed, among the heat generating elements.

26. 发明授权

US10308021B2 Print element substrate, printhead, and image forming apparatus 有权
公开(公告)号：US10308021B2
公开(公告)日：2019-06-04
申请号：US15822729
申请日：2017-11-27
申请人： CANON KABUSHIKI KAISHA
发明人： Hiroyasu Nomura , Nobuyuki Hirayama
IPC分类号： B41J2/14 , B41J2/045
摘要： A print element substrate that includes a plurality of heaters and a plurality of temperature sensors provided in correspondence with a plurality of nozzles, comprises: a selecting unit that selects one temperature sensor from the plurality of temperature sensors and output a temperature signal; a determining unit that determines a discharge state of the nozzle based on the temperature signal output by the selecting unit; an outputting unit that, based on a determination result output from the determining unit, externally outputs a signal indicating the discharge state of the nozzle corresponding to the selected temperature sensor; and a masking unit that, in accordance with a change in selection of the temperature sensor by the selecting unit, masks the determination result output from the determining unit to the outputting unit during a predetermined time from a timing of the change.

27. 发明授权

US10035346B2 Element substrate and liquid ejection head 有权
公开(公告)号：US10035346B2
公开(公告)日：2018-07-31
申请号：US15000544
申请日：2016-01-19
申请人： CANON KABUSHIKI KAISHA
发明人： Ryo Kasai , Nobuyuki Hirayama , Masataka Sakurai , Kengo Umeda , Hidenori Yamato , Makoto Takagi , Tatsuhito Goden , Sadayoshi Sakuma , Nobuyuki Suzuki , Toru Eto
IPC分类号： B41J2/14
CPC分类号： B41J2/14072 , B41J2/14129 , B41J2202/03 , B41J2202/11 , B41J2202/18
摘要： An element substrate of a liquid ejection head includes: a base material; an insulating film positioned on the base material; a heating resistance element for generating heat energy for ejecting a liquid; a protective film for covering the heating resistance element; a first electrical wiring layer arranged in the insulating film, for supplying a current to the heating resistance element; a second electrical wiring layer arranged on a layer different from the first electrical wiring layer in the insulating film, for supplying a current to the heating resistance element; and at least one connecting member extending into the insulating film to connect the first electrical wiring layer and the heating resistance element, for causing the current to flow in a first direction, the heating resistance element including a connecting region, extending in a second direction intersecting the first direction, to which the at least one connecting member is connected.

28. 发明申请

US20170341377A1 RECORDING ELEMENT SUBSTRATE, LIQUID EJECTION HEAD, AND LIQUID EJECTION APPARATUS 审中-公开
公开(公告)号：US20170341377A1
公开(公告)日：2017-11-30
申请号：US15601848
申请日：2017-05-22
申请人： CANON KABUSHIKI KAISHA
发明人： Masataka Sakurai , Nobuyuki Hirayama , Ryo Kasai , Kengo Umeda , Hidenori Yamato , Masanobu Ohmura , Tatsuhito Goden
IPC分类号： B41J2/045 , B41J2/455 , B41J2/14 , B41J2/05 , B41J2/447 , B41J2/335
CPC分类号： B41J2/04541 , B41J2/05 , B41J2/14032 , B41J2/14072 , B41J2/33535 , B41J2002/14459 , B41J2202/12
摘要： A recording element substrate includes a substrate, a plurality of energy generating elements arranged on the substrate to form an element row, a plurality of supply ports arranged along the element row to form a supply port row, and a plurality of supply paths extending from the plurality of supply ports along the thickness direction of the substrate, wherein a plurality of beam portions disposed between adjacent supply ports in the direction of the supply port row has a plurality of conductor layers in which a conductor layer including a power supply conductor connected to the energy generating elements and a conductor layer including a ground conductor connected to the energy generating elements, are stacked along the thickness direction of the substrate, and wherein at least one of the plurality of conductor layers is occupied by one power supply conductor or one ground conductor.

29. 发明授权

US09039126B2 Liquid ejection head substrate and liquid ejection head 有权
标题翻译：液体喷射头基板和液体喷射头
公开(公告)号：US09039126B2
公开(公告)日：2015-05-26
申请号：US14231842
申请日：2014-04-01
申请人： CANON KABUSHIKI KAISHA
发明人： Nobuyuki Hirayama , Ryo Kasai
IPC分类号： B41J2/07 , B41J2/14
CPC分类号： B41J2/072 , B41J2/1404 , B41J2/1408 , B41J2/14153
摘要： A liquid ejection head substrate includes: a plurality of energy generating element arrays each including a plurality of energy generating elements configured to generate energy for ejecting liquid; a supply port array in which a plurality of supply ports configured to supply liquid to the plurality of energy generating elements are arranged between the plurality of energy generating element arrays in an arrangement direction in which the plurality of energy generating elements are arranged; a temperature detection element that is configured to detect a temperature of the liquid ejection head substrate and that is provided on one side of the supply port array; and a heating element that is configured to heat the liquid ejection head substrate and that is provided on the other side of the supply port array.
摘要翻译：液体喷射头基板包括：多个能量产生元件阵列，每个能量产生元件阵列包括被配置为产生用于喷射液体的能量的多个能量产生元件; 供给口阵列，其中配置成向所述多个能量产生元件供应液体的多个供给口在布置多个能量产生元件的排列方向上布置在所述多个能量产生元件阵列之间; 温度检测元件，其被配置为检测所述液体喷射头基板的温度，并且设置在所述供给口阵列的一侧; 以及加热元件，其被配置为加热所述液体喷射头基板，并且设置在所述供给口阵列的另一侧。

30. 发明授权

US08857934B2 Print element substrate, printhead, and printing apparatus 有权
标题翻译：打印元件基板，打印头和打印装置
公开(公告)号：US08857934B2
公开(公告)日：2014-10-14
申请号：US13743647
申请日：2013-01-17
申请人： Canon Kabushiki Kaisha
发明人： Nobuyuki Hirayama
IPC分类号： B41J29/38 , B41J2/045
CPC分类号： B41J2/04501 , B41J2/04541 , B41J2/04543 , B41J2/04563 , B41J2/0458
摘要： This invention provides a print element substrate having a plurality of printing elements. The print element substrate includes a detection circuit configured to detect substrate information of the print element substrate, a shift register configured to serially input print signals for performing driving control of the printing elements, serial-parallel convert the print signals, and parallelly output the print signals, a latch circuit configured to latch the print signals parallelly output from the shift register, and a driving circuit configured to drive the plurality of printing elements based on the print signals latched by the latch circuit. Detection signals based on the substrate information are parallelly input from the detection circuit to the shift register until serial input of next print signals starts after parallelly outputting the print signals from the shift register to the latch circuit.
摘要翻译：本发明提供一种具有多个打印元件的打印元件基板。打印元件基板包括检测电路，其被配置为检测打印元件基板的基板信息;移位寄存器，被配置为串行输入用于执行打印元件的驱动控制的打印信号，串行并行转换打印信号，并且并行地输出打印信号，锁存电路，被配置为锁存从移位寄存器并行输出的打印信号;以及驱动电路，被配置为基于由锁存电路锁存的打印信号驱动多个打印元件。基于衬底信息的检测信号从检测电路并行地输入到移位寄存器，直到下一个打印信号的串行输入在将移位寄存器的打印信号并行输出到锁存电路之后开始。

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