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61. 发明授权

US11498329B2 Liquid discharge apparatus, head drive control method, and head drive control device 有权
公开(公告)号：US11498329B2
公开(公告)日：2022-11-15
申请号：US16952447
申请日：2020-11-19
申请人： Hitoshi Kida
发明人： Hitoshi Kida
IPC分类号： B41J2/045 , B41J2/14
摘要： A liquid discharge apparatus includes a liquid discharger and circuitry. The liquid discharger includes a nozzle to discharge liquid. The circuitry is configured to generate and output a common drive waveform including a plurality of drive pulses for discharging the liquid; select one or more of the plurality of drive pulses from the common drive waveform and apply the one or more of the plurality of drive pulses to a pressure generating element of the liquid discharger; and adjust, with different adjustment values, application waveform shapes of at least two of the plurality of drive pulses applied to the pressure generating element.

62. 发明授权

US11498328B2 Reset monitor 有权
公开(公告)号：US11498328B2
公开(公告)日：2022-11-15
申请号：US16957518
申请日：2019-02-06
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： Scott A. Linn , James M. Gardner
IPC分类号： B41J2/045 , B41J29/393
摘要： An integrated circuit to drive a plurality of actuators during a non-reset operating condition is disclosed. The integrated circuit includes a reset input to receive a reset signal activated for a duration. The reset signal generates a reset condition in the integrated circuit during which the non-reset operating condition is blocked. The integrated circuit also includes a monitor circuit operably coupled to the reset input to indicate if the duration of the reset signal meets or exceeds a selected duration.

63. 发明授权

US11498327B2 Method and apparatus for droplet deposition 有权
公开(公告)号：US11498327B2
公开(公告)日：2022-11-15
申请号：US17132330
申请日：2020-12-23
申请人： XAAR TECHNOLOGY LIMITED
发明人： Nicholas Marc Jackson , Angus Condie
IPC分类号： B41J2/045 , B41J2/14
摘要： A method for depositing droplets onto a medium, utilising a droplet deposition head is provided. The head used in the method includes: an array of fluid chambers separated by interspersed walls, each fluid chamber communicating with an aperture for the release of fluid droplets and each wall separating two neighbouring chambers. Each wall is actuable such that in response to a first voltage, it will deform so as to decrease the volume of one chamber and increase the volume of the other chamber, and, in response to a second voltage, it will deform so as to cause the opposite effect on the volumes of its neighbouring chambers. The method includes the steps of: receiving input data: assigning, based on such input data, all the chambers within the array as either filing chambers or non-firing chambers, so as to produce bands of one or more contiguous filing chambers separated by bands of one or more contiguous non-firing chambers; actuating the walls of certain of the chambers such that: for each non-firing chamber, either one wall is stationary while the other is moved, or the walls move with the same sense, or they remain stationary: and, for each firing chamber the walls move with opposing senses; such actuations result in each firing chamber releasing at least one droplet, the resulting droplets forming bodies of fluid disposed on a line on the medium, such bodies of fluid being separated on the line by respective gaps for each of the bands of non-firing chambers, the size of each such gap generally corresponding in size to the respective band of non-firing chambers. The actuations of the walls of said firing chambers in the actuating step are such that, if only one of the two walls of each firing chamber were actuated in such manner, no droplets would be ejected from that firing chamber. A droplet deposition apparatus, a droplet deposition head and a computer program product are also provided.

64. 发明申请

US20220348010A1 PULLDOWN DEVICES 有权
公开(公告)号：US20220348010A1
公开(公告)日：2022-11-03
申请号：US17868164
申请日：2022-07-19
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, LP.
发明人： James Michael Gardner , John Rossi , Scott A. Linn
IPC分类号： B41J2/045
摘要： An integrated circuit to drive a plurality of fluid actuation devices includes a plurality of contact pads, a plurality of pulldown devices, and control logic. The plurality of contact pads include a first contact pad and a second contact pad. Each of the pulldown devices is electrically coupled to a corresponding contact pad. The control logic enables at least a portion of the pulldown devices in response to both a logic low signal on the first contact pad and a logic low signal on the second contact pad.

65. 发明申请

US20220348005A1 EMULATING PARAMETERS OF A FLUID EJECTION DIE 有权
公开(公告)号：US20220348005A1
公开(公告)日：2022-11-03
申请号：US17863934
申请日：2022-07-13
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, LP.
发明人： John ROSSI , Eric D. NESS , James Michael GARDNER , Scott A. LINN
IPC分类号： B41J2/045
摘要： An integrated circuit includes thermal tracking logic, control logic, and an output interface. The thermal tracking logic determines a temperature of a fluid ejection die. The control logic defines an emulated parameter of the fluid ejection die as a function of the temperature of the fluid ejection die. The output interface outputs the emulated parameter to a printer system based on the function and the temperature of the fluid ejection die.

66. 发明授权

US11485133B2 Fluid ejection devices including a memory 有权
公开(公告)号：US11485133B2
公开(公告)日：2022-11-01
申请号：US16959077
申请日：2019-04-19
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： Boon Bing Ng
IPC分类号： B41J2/045 , B41J2/175
摘要： An integrated circuit to drive a plurality of fluid actuation devices includes a fire line, a plurality of memory elements, a first switch, and a plurality of second switches. The first switch is electrically coupled between the fire line and a first side of each memory element of the plurality of memory elements. Each second switch is electrically coupled to a second side of a respective memory element of the plurality of memory elements.

67. 发明申请

US20220339928A1 INK JET RECORDING APPARATUS 有权
公开(公告)号：US20220339928A1
公开(公告)日：2022-10-27
申请号：US17726380
申请日：2022-04-21
申请人： CANON KABUSHIKI KAISHA
发明人： Hiroyuki Noguchi
IPC分类号： B41J2/045 , B41J2/175
摘要： A recording apparatus includes a carriage equipped with a recording head that ejects ink to a sheet, a drive unit configured to move the carriage in a width direction of the sheet, an encoder configured to detect first information regarding a position or a velocity of the carriage that moves by the drive unit, an acceleration sensor arranged on the carriage and configured to detect second information regarding acceleration of the carriage, and a control unit configured to stop the carriage, based on the first information and the second information.

68. 发明授权

US11479038B2 Printing liquid supply device, printing liquid circulation device and printing machine 有权
公开(公告)号：US11479038B2
公开(公告)日：2022-10-25
申请号：US16969317
申请日：2018-02-22
申请人： MITSUBISHI HEAVY INDUSTRIES MACHINERY SYSTEMS, LTD.
发明人： Mitsuhiro Nadachi , Makoto Shimohatsubo
IPC分类号： B41J2/045 , B41F31/00 , G01N11/12
摘要： A viscosity measurement device includes a measurement tool having a pump for feeding a printing liquid by pressure. The viscosity measurement device includes a passage part having a first passage part in which a flow path cross-sectional area for the printing liquid is set at a first area, and a second passage part in which a flow path cross-sectional area for the printing liquid is set at a second area smaller than the first area and which is arranged on an upstream side in a supply direction of the printing liquid with respect to the first passage part, the passage part being interposed in the supply path and arranged upward toward a downstream side in the supply direction of the printing liquid; and a sensor attached to the second passage part and measuring the fall time of the measurement tool in a prescribed vertical region in the second passage part.

69. 发明授权

US11472175B2 Failure time estimation device, machine learning device, and failure time estimation method 有权
公开(公告)号：US11472175B2
公开(公告)日：2022-10-18
申请号：US16810202
申请日：2020-03-05
申请人： SEIKO EPSON CORPORATION
发明人： Shigenori Katayama , Kazunari Tsukada , Yuichi Shikagawa , Tetsuo Tatsuda , Mamoru Ukita , Haruhisa Kurane
IPC分类号： B41J2/045 , B41J2/165 , G06N20/00
摘要： A failure time estimation device includes: a memory configured to store a machine-learned model obtained by performing machine learning using teaching data associating printer information including at least one of operation history of a printer, state information indicating a current state, and a print result image indicating a print result with failure time of the printer; and a controller configured to obtain the printer information and estimate the failure time of the printer using the obtained printer information and the machine-learned model.

70. 发明申请

US20220324224A1 PRINTING DEVICE AND CORRECTION METHOD 有权
公开(公告)号：US20220324224A1
公开(公告)日：2022-10-13
申请号：US17642696
申请日：2020-09-28
申请人： MIMAKI ENGINEERING CO., LTD.
发明人： Takuhide Misaizu
IPC分类号： B41J2/045
摘要： Misalignment between landing positions is appropriately corrected. A printing device 10 that performs printing by an inkjet method includes an inkjet head 102, a carriage 100, a main scan driving part 18 (carriage drive mechanism), a detection mechanism 106, and a controller 30. The controller 30 detects a position where a concentration is the highest among concentrations of a correction pattern changing depending on positions in a main scanning direction, calculates magnitude of misalignment between a landing position of ink ejected from the inkjet head 102 when the carriage 100 moves to a first direction side and a landing position of the ink ejected from the inkjet head 102 when the carriage 100 moves to a second direction side based on a detection result of the position where the concentration is the highest, and corrects the misalignment between the landing positions based on a calculation result.

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