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公开(公告)号：US20220024200A1
公开(公告)日：2022-01-27
申请号：US17311460
申请日：2019-01-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Abstract: Examples relate to a method to print a print job. The method comprise comparing an operational parameter of the print job with a reference operational parameter and determining to perform a maintenance task during the print job based on at least a result of comparing the operational parameter with the reference operational parameter. If the maintenance task is to be performed, the method further comprises determining a safety area on a printable medium and performing a maintenance task on a printable medium.
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公开(公告)号：US20220388800A1
公开(公告)日：2022-12-08
申请号：US17756012
申请日：2019-12-04
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
IPC: B65H23/195 , B41J15/16 , B41J11/00
Abstract: A system (300) is provided having a printer (4) to print printing liquid onto a web (6) of media (8). The system (300) has a winding roller (10) on which to roll the web (6) of media (8) after printing. A tensioner (12) to vary the tension in a portion (14) of the web (6) of media (8) is also provided. The portion (14) is a portion of web which is being rolled onto the winding roller (10). Also provided is controller (16) to control the tensioner (12) to vary the tension based on the time taken for the printed printing liquid on the web (6) of media (8) to dry.
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公开(公告)号：US20220105721A1
公开(公告)日：2022-04-07
申请号：US17418995
申请日：2019-06-05
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Andreu Vinets Alonso , Antonio Gracia Verdugo , Josep Maria Bel Calavia , Jordi Bas Ferrer
Abstract: The present disclosure refers to servicing printing systems, wherein the system comprises a controller to: instruct an ejection of printing fluid from each of the nozzles within a printhead; detect, by a drop detector, drops ejected from each nozzle; determine by the controller a drop time for each nozzle, being the drop time determined between the instruction of the ejection of printing fluid from each of the nozzles until the drops ejected by each of the nozzles reaches the drop detector; and determine a nozzle health parameter in view of each nozzle drop time; wherein the method comprises comparing each nozzle health parameter with a threshold value and instructing, by the controller, a servicing operation if the nozzle health parameter is outside a threshold range.
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公开(公告)号：US11635924B2
公开(公告)日：2023-04-25
申请号：US17417256
申请日：2019-04-11
Applicant: Hewlett-Packard Development Company, L.P.
IPC: B41J29/393 , B41J11/00 , B41J29/26 , G06F3/12
Abstract: There is disclosed a device, method and program, wherein the method comprises detecting a power increase, during which power usage increases by at least a threshold amount over an expected power usage during movement of a printer carriage over a print medium along a scan axis. The increase method further comprises detecting a location of the printer carriage at a time of the detected power usage increase and determining, based on the detected location of the printer carriage, whether the print medium is damaged.
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公开(公告)号：US20210309028A1
公开(公告)日：2021-10-07
申请号：US17262010
申请日：2018-11-28
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Ignasi Bonjoch Roma , Josep Maria Bel Calavia
Abstract: A method to advance a print medium, for example a flexible print medium, through a print zone of a printing device is described. A carrier is fed from a carrier supply. The carrier has an adhesive surface. A print medium is engaged with the adhesive surface of the carrier. The carrier with the engaged print medium is advanced to the print zone.
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Patent Agency Ranking
公开(公告)号：US11780252B2
公开(公告)日：2023-10-10
申请号：US17262010
申请日：2018-11-28
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Ignasi Bonjoch Roma , Josep Maria Bel Calavia
CPC classification number: B41J15/048 , B65H23/048 , B65H37/002 , B65H2701/1722 , B65H2701/1942 , B65H2801/12
Abstract: A method to advance a print medium, for example a flexible print medium, through a print zone of a printing device is described. A carrier is fed from a carrier supply. The carrier has an adhesive surface. A print medium is engaged with the adhesive surface of the carrier. The carrier with the engaged print medium is advanced to the print zone.
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公开(公告)号：US11642881B2
公开(公告)日：2023-05-09
申请号：US17311460
申请日：2019-01-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
CPC classification number: B41J2/0451 , B41J2/16579 , B41J2/2139 , B41J2/2142
Abstract: Examples relate to a method to print a print job. The method comprise comparing an operational parameter of the print job with a reference operational parameter and determining to perform a maintenance task during the print job based on at least a result of comparing the operational parameter with the reference operational parameter. If the maintenance task is to be performed, the method further comprises determining a safety area on a printable medium and performing a maintenance task on a printable medium.
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公开(公告)号：US20220332132A1
公开(公告)日：2022-10-20
申请号：US17232813
申请日：2021-04-16
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Martin Urrutia Nebreda , Josep Maria Bel Calavia , Eduard Lores Garcia
IPC: B41J15/16 , B65H16/10 , B65H23/185
Abstract: A printing device includes a supply roller on which a roll of substrate is wound, and a tension motor to apply a tension to the roll of substrate. The printing device includes a drive roller to advance the substrate from the roll through a print zone, a drive roller motor to rotate the drive roller, and a drive roller motor controller to apply a drive roller motor signal to the drive roller motor. The printing device includes a closed loop tension controller to adjust the tension applied by the tension motor to the roll of substrate based on the drive roller motor signal applied to the drive roller motor.
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公开(公告)号：US12277354B2
公开(公告)日：2025-04-15
申请号：US18185819
申请日：2023-03-17
Applicant: Hewlett-Packard Development Company, L.P.
Abstract: In example implementations, a method, a device, and a program are provided. The method includes detecting a power increase movement of a printer carriage. A location of the printer carriage is detected at a time of the detected power increase. Based on the detected location of the printer carriage, determine whether the print medium is damaged. The device includes a power monitor to detect a power increase during movement of a printer carriage. A locator detects a location of the printer carriage at the time of the detected power increase. A damage determiner determines, based on the detected location of the printer carriage, whether the print medium is damaged. The program detects a power increase during movement of a printer carriage. Location of printer carriage is detected at time of detected power increase. Based on detected location of the printer carriage, it is determined whether the print medium is damaged.
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公开(公告)号：US11999580B2
公开(公告)日：2024-06-04
申请号：US17756012
申请日：2019-12-04
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
IPC: B65H23/18 , B41J11/00 , B41J15/16 , B65H23/195
CPC classification number: B65H23/1955 , B41J11/002 , B41J15/165
Abstract: A system (300) is provided having a printer (4) to print printing liquid onto a web (6) of media (8). The system (300) has a winding roller (10) on which to roll the web (6) of media (8) after printing. A tensioner (12) to vary the tension in a portion (14) of the web (6) of media (8) is also provided. The portion (14) is a portion of web which is being rolled onto the winding roller (10). Also provided is controller (16) to control the tensioner (12) to vary the tension based on the time taken for the printed printing liquid on the web (6) of media (8) to dry.
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