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    PRINT TREATMENT UNITS
    12.
    发明申请
    PRINT TREATMENT UNITS 有权

    公开(公告)号：US20220004122A1

    公开(公告)日：2022-01-06

    申请号：US17256668

    申请日：2019-03-22

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

    Inventor： Fernanda Orlik ,  Albert Teishev ,  Alex Veis

    IPC: G03G15/10 ,  C09D11/107 ,  C09D11/52 ,  G03G15/20

    Abstract: A method is disclosed. The method may comprise forming an image on a surface by controlled electrostatic transfer of a fluid print agent comprising thermoplastic resin disposed in a carrier fluid The method may also comprise heating the fluid print agent on the surface to remove the carrier fluid and to melt the thermoplastic resin and allowing the melted thermoplastic resin in continuous areas on the surface to fuse together to form an image from fused print agent. The method may further involve providing a printed substrate bearing the image formed from fused print agent. The method may further comprise irradiating the printed substrate with an ultraviolet narrowband source so as to cause heating of the fused print agent to melt the thermoplastic resin. A print system and a print apparatus are also disclosed.

    PREHEAT DYED BUILD MATERIALS WITH PREHEATING SOURCES
    15.
    发明申请
    PREHEAT DYED BUILD MATERIALS WITH PREHEATING SOURCES 有权

    公开(公告)号：US20210016350A1

    公开(公告)日：2021-01-21

    申请号：US16608269

    申请日：2018-04-10

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

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

    IPC: B22F3/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/165 ,  B29C64/295 ,  B29C64/393

    Abstract: An example of an additive manufacturing system is disclosed. The example disclosed herein comprises a build material distributor, a color module, a preheating source, and a controller. The build material distributor is to form build material layers. The color module is to eject a composition that dyes a build material layer with a color. The preheating source is to emit energy at a wavelength related to the dyed build material color so that at least a 40% of the energy is absorbed by the dyed 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 to instruct the color module to eject the composition to color the build material from the build material layer in a zone comprising the area to be fused. The controller is further to control the preheating source to emit energy to preheat the build material layer.

    PRINTING USING A PRINT HEAD, AN ULTRAVIOLET SOURCE, AND A GAS DISPENSER
    17.
    发明申请
    PRINTING USING A PRINT HEAD, AN ULTRAVIOLET SOURCE, AND A GAS DISPENSER 审中-公开
    使用打印头，ULTRAVIOLET源和气体分配器打印

    公开(公告)号：US20150151553A1

    公开(公告)日：2015-06-04

    申请号：US14615730

    申请日：2015-02-06

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

    Inventor： Marian Cofler ,  Alex Veis

    IPC: B41J11/00

    CPC classification number: B41J11/002 ,  B41J3/28 ,  B41J11/0015 ,  B41J13/0072

    Abstract: A printing apparatus for printing on a substrate comprises a first support to support a substrate support, and a second support that supports a print head, a ultraviolet (UV) source of UV radiation, and a gas dispenser. The second support is moveable relative to a substrate supported by the first support. The print head deposits printing fluid on the substrate and the UV source cures the deposited printing fluid. The gas dispenser is arranged to provide a layer of gas, which is at least depleted of oxygen, between the UV source and the substrate.

    Abstract translation: 用于在基板上打印的打印设备包括支撑基板支撑件的第一支撑件和支撑打印头，紫外线（UV）UV辐射源和气体分配器的第二支撑件。 第二支撑件相对于由第一支撑件支撑的基板可移动。 印刷头将印刷液体沉积在基材上，UV源固化沉积的印刷液体。 气体分配器布置成在UV源和基底之间提供至少耗尽氧气的一层气体。

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