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    Fluid impeller controller
    1.
    发明授权
    Fluid impeller controller 有权

    公开(公告)号：US10788044B2

    公开(公告)日：2020-09-29

    申请号：US16470949

    申请日：2017-04-25

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： Aleix Fort Filgueira ,  Antonio Gracia Verdugo ,  Albert Franco Morera ,  Simone Micheli

    IPC: F04D27/00 ,  B41J11/00 ,  F04D13/06 ,  F04D29/00

    Abstract: Circuits for controlling an impeller in a fluid flow distribution system to achieve a target fluid flow are disclosed. The circuit to output a signal representative of a speed value (NT) of the impeller derived from a stored power consumption value (Wi) and speed value (Ni) pairs to achieve the target fluid flow. The circuit to receive a power signal representative of an input power consumption value (W) of the impeller at the speed value (NT) to input fluid to the fluid flow distribution system and to compare the value (W) represented by a power signal for the speed value (NT) with the stored value (Wi) and impeller speed value (Ni) pairs to determine a least difference impeller speed value (NL) of the stored pair comprising a least difference between the value (W) and the value (Wi). The circuit to output a speed signal representative of value (NL).

    Printing fluid cartridge for a pumped printing fluid system
    2.
    发明授权
    Printing fluid cartridge for a pumped printing fluid system 有权

    公开(公告)号：US10442205B2

    公开(公告)日：2019-10-15

    申请号：US15765648

    申请日：2015-12-22

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Albert Crespi Serrano ,  Joan Albert Miravet Jimenez ,  David Toussaint ,  Aleix Fort Filgueira

    IPC: B41J2/175 ,  B41J2/19

    Abstract: A printing fluid cartridge (104) for a pumped printing fluid system containing a pump (110) is described, the printing fluid cartridge (104) comprising a housing (120) defining an interior chamber (122); a collapsible bag (124) within the chamber for holding a supply of printing fluid (126); and a fluid connection member (106) for forming a fluid connection between the collapsible bag (124) and an upstream side of the pump (110). The housing (120) includes a structure allowing the application of manual pressure to the collapsible bag (124) to urge printing fluid out of the collapsible bag through the fluid connection member (106) to the upstream side of the pump (110) to displace air (130) in the fluid connection member (106) and the pump (110).

    MOTOR IDENTIFICATION WITH MULTIPLE MOTORS
    4.
    发明申请
    MOTOR IDENTIFICATION WITH MULTIPLE MOTORS 有权

    公开(公告)号：US20210170771A1

    公开(公告)日：2021-06-10

    申请号：US16768823

    申请日：2017-12-18

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： Carles Flotats Villagrasa ,  Aleix Fort Filgueira ,  Jordi Hernandez Creus

    IPC: B41J29/393 ,  G01R31/34

    Abstract: It is disclosed a motor identification method for determine possible incorrect connections in a system comprising a plurality of motors corresponding to a plurality of sub-systems, the method comprising: applying an input to at least one of the motors causing its movement; and determining a detection signal corresponding to a position, speed or acceleration of the motor during a detection period; wherein the system comprises a memory storing a set of characteristic signals corresponding to at least some of the sub-systems and wherein the method comprises comparing, by a controller, the detection signal with the set of characteristic signals and correlating the at least one of the motors to a determined sub-system.

    Suction force calibration
    5.
    发明授权
    Suction force calibration 有权

    公开(公告)号：US10532588B2

    公开(公告)日：2020-01-14

    申请号：US15573196

    申请日：2015-07-17

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Antonio Gracia Verdugo ,  Carles Flotats Villagrasa ,  Aleix Fort Filgueira

    IPC: B41J11/00 ,  B41J11/06 ,  B41J11/08 ,  B41J15/04

    Abstract: Provided in one example is a printing system that has a printing zone with a platen (10), a drive, a suction force generator (18), a media advance sensor (26) to monitor movement of the medium through the printing zone in a medium advance direction, and a controller 28) to perform suction force calibration prior to printing. The suction force calibration includes controlling the drive to cause movement of the medium from an initial position at least partly through the printing zone while the suction force generator is controlled to generate at least one suction force level, determining a suction force level to be used during printing on the medium based on the output of the media advance sensor during the movement, and moving the medium back to the initial position.

    Determining particle concentration
    7.
    发明授权
    Determining particle concentration 有权

    公开(公告)号：US12138941B2

    公开(公告)日：2024-11-12

    申请号：US18006242

    申请日：2020-07-23

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Albert Franco Morera ,  Andreu Cortes ,  Aleix Fort Filgueira

    IPC: B41J29/377

    Abstract: According to an example, a method for a printing system comprises reading configuration data of a printing environment for the printing system, determining based on the configuration data if a concentration of particles emitted during a printing operation of the printing system will exceed a threshold over a time period, and executing at least one remedial action on the printing operation if the concentration of particles will exceed the threshold.

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