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    PRINTING SYSTEM
    22.
    发明申请
    PRINTING SYSTEM 有权

    公开(公告)号：US20210300048A1

    公开(公告)日：2021-09-30

    申请号：US17264332

    申请日：2018-12-20

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

    Inventor： Victor Ruiz Rivas ,  Sergi Culubret Cortada ,  Esteve Comas Cespedes

    IPC: B41J2/175

    Abstract: A printing system to hold printing material comprises a sealing interface to seal a container with respect to a printing chamber volume of the printing system, the container to hold the printing material. The printing system comprises a lifting system to move the container between a first position in which the container is to be lifted and a second position at which the container is lifted and contacts the seal so as to seal the container. The lifting system is to non-hyperstatically constrain the container.

    THREE DIMENSIONAL PRINTING SYSTEM
    23.
    发明申请
    THREE DIMENSIONAL PRINTING SYSTEM 有权

    公开(公告)号：US20210283852A1

    公开(公告)日：2021-09-16

    申请号：US16608857

    申请日：2018-01-16

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

    Inventor： Xavier Soler Pedemonte ,  Esteve Comas Cespedes ,  Juan Ramos Campos

    IPC: B29C64/393 ,  B29C64/165 ,  B29C64/268

    Abstract: A method and system for a three dimensional printing system are described herein. In one example, the three dimensional printing system has a moveable carriage, an array of laser modules and a print controller. In this example, the moveable carriage has a print head arranged to selectively deposit a printing agent on to a layer of build material as the moveable carriage is moved relative to the layer of build material. The printing agent controls localized fusing of the build material on application of energy. The print controller is communicatively coupled to the array of laser modules and controls activation of individual laser modules of the array of laser modules so as to apply, selectively, energy to addressable sub-regions of the layer of build material on which printing agent has been deposited to control fusing together with the deposited printing agent.

    PREHEAT BUILD MATERIALS WITH PREHEATING SOURCES
    24.
    发明申请
    PREHEAT BUILD MATERIALS WITH PREHEATING SOURCES 有权

    公开(公告)号：US20210039316A1

    公开(公告)日：2021-02-11

    申请号：US16608320

    申请日：2018-04-10

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

    Inventor： Alex Veis ,  Joaquim Brugue Garvi ,  Esteve Comas Cespedes

    IPC: B29C64/30 ,  B29C64/165 ,  B22F3/00 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y40/10 ,  B29C35/08

    Abstract: An example of an additive manufacturing system is disclosed. The example disclosed herein comprises a build material distributor, a preheating source, and a controller. The build material distributor is to form build material layers from an intended build material having a color. The preheating source is to emit energy at a wavelength related to the intended build material color so that at least a 40% of the energy is absorbed by the build material. The controller is to receive printing instructions to print a 3D object, wherein the printing instructions define an area to be fused in a build material layer. The controller is also to instruct the build material distributor to form the build material layer. The controller is further to control the preheating source to emit energy to preheat a zone comprising the area to be fused.

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