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公开(公告)号：WO2022164437A1
公开(公告)日：2022-08-04
申请号：PCT/US2021/015635
申请日：2021-01-29
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Abstract: Methods and service systems for a printing apparatus are described, in which forces exerted by a wiper during a wiping operation of the fluid ejection devices of the printing apparatus are determined in two separate positions along the wiper.
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公开(公告)号：WO2022139806A1
公开(公告)日：2022-06-30
申请号：PCT/US2020/066582
申请日：2020-12-22
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： QIAN, Li , BORDONE, Maurizio , CARMONA CALPE, Carles
IPC: B41J2/175 , B41J29/393
Abstract: Examples include a method for mitigating decap in a printing system that comprises nozzles, in which printing data associated to a graphical representation and that comprise pixel data points are received. Some data points are associated with a corresponding nozzle and a corresponding direction of movement and at least one specific data point is associated with a specific direction of movement and a specific nozzle which has a decap time below a first predetermined threshold. The received printing data is modified by displacing the printing data of the specific data point in a direction opposite to the specific direction of movement in order to compensate for the decap time.
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公开(公告)号：WO2022046056A1
公开(公告)日：2022-03-03
申请号：PCT/US2020/048146
申请日：2020-08-27
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： BORDONE, Maurizio , AMELA CONESA, Eduardo , SERAS FRANZOSO, Mauricio
IPC: G06F3/12
Abstract: Examples include a method for operating a printing device comprising a specific pen. The method comprises receiving future specific pen firing data related to a plurality of upcoming successive print jobs and collecting historical specific pen firing data. The method further comprises determining a level and timing of servicing of the specific pen in function of both of the received future specific pen firing data and of the collected historical specific pen firing data.
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公开(公告)号：WO2022025890A1
公开(公告)日：2022-02-03
申请号：PCT/US2020/044169
申请日：2020-07-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
IPC: B41J2/195
Abstract: Certain examples herein relate to configuring settings for a component of a printer. In certain cases, data comprising a value indicative of an extrinsic property and/or a value indicative of an intrinsic property of a printing operation to be performed by a printer is received by a machine learning system. The machine learning system determines a thermal stabilization temperature of a first ink for the received data. Settings for components of the printer to perform the printing operation are determined based on the determined thermal stabilization temperature of the first ink and the components of the printer are configured with the determined settings.
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Patent Agency Ranking
公开(公告)号：WO2021126252A1
公开(公告)日：2021-06-24
申请号：PCT/US2019/067926
申请日：2019-12-20
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Abstract: A method is described in which wiping of a printhead of a printer is caused in accordance with a first wiping routine, the first wiping routine comprising periodic wiping events performed on the printhead; at least one printing parameter of a rate of an aggregation of printing liquid deposits is obtained; a second wiping routine is determined, the second wiping routine comprising periodic wiping events performed on the printhead, the wiping period of the second wiping routine being determined depending on the at least one printing parameter; and wiping of the printhead in accordance with the first and second wiping routines is caused.
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公开(公告)号：WO2023075767A1
公开(公告)日：2023-05-04
申请号：PCT/US2021/056903
申请日：2021-10-27
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Abstract: A printing apparatus is disclosed herein. The apparatus comprises a platen and a carriage. The platen has a printing zone, the platen being to hold a media moveable along a media path direction. The carriage includes a cleaning accessory interface couplable to a cleaning accessory, the cleaning accessory to remove contaminants from the platen upon the carriage's movement; and a conduit connectable to a vacuum source to extract the removed contaminants from the printing zone.
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公开(公告)号：WO2022231585A1
公开(公告)日：2022-11-03
申请号：PCT/US2021/029716
申请日：2021-04-28
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： CESSEL, Gianni , CARMONA CALPE, Carles , CASALDALIGA ALBISU, Marcos , MENA RODRIGUEZ, Pablo Carmelo , ABELLO ROSELLO, Lluis , VELAZQUEZ GOMEZ, Ma. Pilar , SILVESTRE, Ricard , VERGES LLAHI, Jaume , VAZQUEZ FERNANDEZ, Dorkaitz Alain , TORRENTS BARRENA, Jordina , BORDONE, Maurizio
Abstract: A print apparatus is disclosed. The print apparatus comprises a print fluid application unit having a plurality of nozzles through which print fluid is to be deposited onto a printable medium during a printing operation. The print apparatus also comprises a nozzle cleaning surface to engage nozzles during a nozzle cleaning operation. The print apparatus also comprises a scanning unit and a controller. The controller is to control the print fluid application unit to deposit print fluid from nozzles of the plurality of nozzles according to an intended pattern onto the nozzle cleaning surface; control the scanning unit to scan the pattern formed on the nozzle cleaning surface; and responsive to determining, based on the scan, that print fluid from a nozzle of the plurality of nozzles has not been deposited according to the intended pattern, generate an instruction signal regarding maintenance of the print fluid application unit. A method and a machine-readable medium are also disclosed.
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公开(公告)号：WO2022164440A1
公开(公告)日：2022-08-04
申请号：PCT/US2021/015660
申请日：2021-01-29
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： TORRES PLANELLS, Maria Nieves , CASTRO SORIANO, Javier , RODRIGUEZ LLOFRIU, Alexandre , BORDONE, Maurizio
Abstract: A print mode determination method is disclosed. The method comprises receiving image data defining parameters of pixels of an image to be printed using a print apparatus; identifying, based on the image data, a first fill area in the image that exceeds a defined threshold area, wherein the first fill area is to be printed in a first color; determining, based on the image data, a first proportion of print agent of each of a plurality of colors to be used to print the first color; and determining, based on the determined first proportions of print agent, a print mode to be used by the print apparatus to print the image. An apparatus and a machine-readable medium are also disclosed.
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公开(公告)号：WO2022005480A1
公开(公告)日：2022-01-06
申请号：PCT/US2020/040594
申请日：2020-07-02
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： CASALDALIGA ALBISU, Marcos , BORDONE, Maurizio , QIAN, Li , CARMONA CALPE, Carles
IPC: B41J2/21 , H04N1/60 , B41J2/04501 , B41J2/2056 , G06K15/102
Abstract: A colorant value adjustment method is disclosed. The method comprises obtaining data defining colorant values for a plurality of print addressable locations representative of pixels of an image to be printed during a printing operation, wherein each colorant value is representative of an amount of colorant to be delivered from a print nozzle to a corresponding print addressable location as the print nozzle moves between the print addressable locations during the printing operation. The method comprises determining, based on the obtained data, a measure of time that the print nozzle is not to deposit colorant immediately prior reaching a first print addressable location. The method comprises determining, based on the determined measure of time, an adjustment to be applied to the colorant value at the first print addressable location. The method comprises applying the adjustment to the colorant value for the first print addressable location. An apparatus and a machine-readable medium are also disclosed.
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