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公开(公告)号：US11279159B2
公开(公告)日：2022-03-22
申请号：US16605519
申请日：2018-06-15
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Yossi Yaacobov , Michel Assenheimer
Abstract: In one example, a method comprises measuring, by a processor, the flow rate of a cleaning fluid to clean at least a portion of a printing apparatus. The measured flow rate is compared to a desired flow rate. When the measured flow rate is outside of a first deviation from the desired flow rate, but within a second deviation from the desired flow rate, then the method in this example comprises changing the operation of a component of a printing apparatus.
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公开(公告)号：US12130575B2
公开(公告)日：2024-10-29
申请号：US18051333
申请日：2022-10-31
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Michel Assenheimer , Asaf Shoshani , Naama Barak , Dorit Shalev
CPC classification number: G03G21/0094 , G03G15/0163
Abstract: A print apparatus is disclosed. The print apparatus includes a photoconductive surface to receive a latent image representative of an image to be printed onto a printable substrate; a charging component to apply a voltage is to be applied to the photoconductive surface as the charging component moves relative to the photoconductive surface; and processing circuitry to receive data indicative of a measurement of a first current resulting from the voltage applied by the charging component; determine, responsive to detecting an increase in the measured first current relative to a reference current, the increase being greater than a first defined threshold current, that there exists a point defect under affecting the latent image; and generate instruction data responsive to determining that there exists a point defect under affecting the latent image. A method and a machine-readable medium are also disclosed.
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公开(公告)号：US20220187752A1
公开(公告)日：2022-06-16
申请号：US17417172
申请日：2019-09-05
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Vitaly Portnoy , Michel Assenheimer
IPC: G03G15/00
Abstract: A computer-implemented method is disclosed. The method includes receiving a first indication that a first replaceable component of a print apparatus has been replaced; receiving, prior to any print impressions being made using the print apparatus since receiving the first indication, a second indication of an intention to replace a second replaceable component of the print apparatus; retrieving data regarding previous replacements of replaceable components of the print apparatus; determining, based on the retrieved data, whether or not replacement of the second replaceable component is to be restricted; and responsive to determining that replacement of the second replaceable component is to be restricted, restricting replacement of the second replaceable component. An apparatus and a machine-readable medium are also disclosed.
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公开(公告)号：US11237506B2
公开(公告)日：2022-02-01
申请号：US16982728
申请日：2018-05-11
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Dmitry Maister , Michel Assenheimer , Liran Fanny Haim
Abstract: A printing device containing a heating apparatus that heats an image substrate, a temperature sensor associated with the image substrate and a processor communicatively coupled to the heating apparatus. The processor determines the heating power of the heating apparatus, compares the heating power to a predetermined power range, determines a status of the temperature sensor when the heating power is outside the predetermined power range, and triggers a response mode of the printing device based on the determined status of the temperature sensor.
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公开(公告)号：US20210055676A1
公开(公告)日：2021-02-25
申请号：US16982728
申请日：2018-05-11
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Dmitry Maister , Michel Assenheimer , Liran Fanny Haim
Abstract: A printing device containing a heating apparatus that heats an image substrate, a temperature sensor associated with the image substrate and a processor communicatively coupled to the heating apparatus. The processor determines the heating power of the heating apparatus, compares the heating power to a predetermined power range, determines a status of the temperature sensor when the heating power is outside the predetermined power range, and triggers a response mode of the printing device based on the determined status of the temperature sensor.
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Patent Agency Ranking
公开(公告)号：US11774895B2
公开(公告)日：2023-10-03
申请号：US17613649
申请日：2019-09-06
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Vitaly Portnoy , Michel Assenheimer , Nailson Boaz Costa Leite , Brian Schmitz Tani
CPC classification number: G03G15/556 , G06N20/00
Abstract: A printing device includes a printing engine to selectively output print material, a replaceable item of the printing engine, and a subsystem for the printing engine. A machine learning model is used to control controllable parameters of the subsystem for the printing engine, based on physical characteristic measurements of the printing device, to maximize a lifespan of the replaceable item.
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公开(公告)号：US20220082996A1
公开(公告)日：2022-03-17
申请号：US17417191
申请日：2019-05-31
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Vitaly Portnoy , Dmitry Maister , Yossi Yaacobov , Michel Assenheimer , Brian Schmitz Tani , Nailson Boaz Costa Leite
Abstract: There is disclosed a device such as a printer or temperature control device for a printer. The device may comprise a photoreceptor. The device may further comprise a heat exchanger to regulate a temperature of the photoreceptor. The device may further comprise a temperature regulator to measure a temperature of a surface of the photoreceptor and control the heat exchanger based on the measured temperature. The device may further comprise a superior temperature controller to, during a pre-print phase of a print action, inhibit the control of the heat exchanger by the temperature regulator and control the heat exchanger to provide a specified amount of heat exchange.
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公开(公告)号：US11543766B2
公开(公告)日：2023-01-03
申请号：US17417172
申请日：2019-09-05
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Vitaly Portnoy , Michel Assenheimer
IPC: G03G15/00
Abstract: A computer-implemented method is disclosed. The method includes receiving a first indication that a first replaceable component of a print apparatus has been replaced; receiving, prior to any print impressions being made using the print apparatus since receiving the first indication, a second indication of an intention to replace a second replaceable component of the print apparatus; retrieving data regarding previous replacements of replaceable components of the print apparatus; determining, based on the retrieved data, whether or not replacement of the second replaceable component is to be restricted; and responsive to determining that replacement of the second replaceable component is to be restricted, restricting replacement of the second replaceable component. An apparatus and a machine-readable medium are also disclosed.
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公开(公告)号：US11237502B2
公开(公告)日：2022-02-01
申请号：US16982074
申请日：2018-05-11
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Dmitry Maister , Michel Assenheimer , Liran Fanny Haim
Abstract: A printing device having a heating apparatus arranged to heat an image substrate, a temperature sensor associated with the image substrate, and a processor communicatively coupled to the heating apparatus. During a simulation mode of the printing device, the processor determines the heating power of the heating apparatus, predicts a temperature of the image substrate based on the heating power, compares the predicted temperature to a measured temperature of the image substrate by the temperature sensor, determines a calibration offset when the measured temperature deviates from the predicted temperature, and selectively generates a control signal for use in calibrating the temperature sensor based on the calibration offset.
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10.发明授权Method and system for adjusting a gap between rollers of a printer in accordance with a media or image length 有权用于根据介质或图像长度调节打印机辊之间的间隙的方法和系统公开(公告)号：US09387663B2
公开(公告)日：2016-07-12
申请号：US14873986
申请日：2015-10-02
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Uri Lidai , Sagi Daren , Assaf Berman , Martin Chauvin , Michel Assenheimer
IPC: G03G15/16 , B41F13/193
CPC classification number: B41F13/193 , B41F13/38 , B41F33/0072 , G03G15/16 , G03G15/167
Abstract: The invention relates to a method for adjusting a gap in a printing system in which a first roller and a second roller are provided, wherein at least one of said first roller and said second roller comprises a seam, said seam corresponding to a variation of the diameter of said first roller and said second roller, respectively, along a circumference thereof. An interaction zone is provided, wherein said second roller is in rolling contact with said first roller under pressure, said interaction zone defining a gap for inserting a media to be printed. A size of said gap is controlled by varying a relative position of said first roller and said second roller when said at least one seam passes through said interaction zone, and said gap is adjusted in accordance with a length of said media to be printed and/or in accordance with a length of an image to be printed.
Abstract translation: 本发明涉及一种用于调整打印系统中的间隙的方法，其中提供第一辊和第二辊，其中所述第一辊和所述第二辊中的至少一个包括接缝，所述接缝对应于 所述第一辊和所述第二辊的直径分别沿其圆周。 提供了相互作用区，其中所述第二辊在压力下与所述第一辊滚动接触，所述相互作用区限定用于插入待印刷介质的间隙。 当所述至少一个接缝通过所述相互作用区域时，通过改变所述第一辊和所述第二辊的相对位置来控制所述间隙的尺寸，并且所述间隙根据要印刷的介质的长度和/ 或者根据要打印的图像的长度。
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