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    HUMIDIFICATION IN A BUILD MATERIAL RECOVERY SYSTEM
    41.
    发明申请
    HUMIDIFICATION IN A BUILD MATERIAL RECOVERY SYSTEM 有权

    公开(公告)号：US20210362422A1

    公开(公告)日：2021-11-25

    申请号：US16607545

    申请日：2018-04-25

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

    Inventor： Justin M. Roman ,  Luke P. Sosnowski

    IPC: B29C64/357 ,  B29C64/314 ,  B33Y40/10 ,  B29C64/255

    Abstract: In one example, a build material recovery system for additive manufacturing includes: a receiving station to receive a portable container containing a build material; a separator to remove build material from a stream of air; a first conduit to carry build material in the stream of air from the receiving station to the separator; a source of negative air pressure to pull the stream of air with the build material through the first conduit from the receiving station to the separator; a humidifier to add moisture to the stream of air; and a second conduit to carry build material from the separator to the receiving station.

    VALVES FOR AIR FLOW CONTROL IN PRINTERS
    42.
    发明申请
    VALVES FOR AIR FLOW CONTROL IN PRINTERS 有权

    公开(公告)号：US20210331398A1

    公开(公告)日：2021-10-28

    申请号：US16608490

    申请日：2018-07-23

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

    Inventor： Michael Duda ,  Justin M. Roman ,  Luke P. Sosnowski

    IPC: B29C64/364 ,  G05B19/18 ,  B33Y50/02 ,  B33Y30/00

    Abstract: An example three-dimensional printer includes a humidity source, a build material reservoir, a conduit between the humidity source and the build material reservoir, an air source to transfer air from the humidity source through the conduit towards the build material reservoir, and a valve assembly connected to the conduit to control a flow of the air in the conduit while the printer enters an inactive mode of operation. The air source is to remain in an active mode of operation. The air source is controlled to transmit the air in the conduit until the air in the conduit adjacent to the build material reservoir reaches a temperature and relative humidity threshold.

    Media transport jam prevention
    45.
    发明授权
    Media transport jam prevention 有权

    公开(公告)号：US10364110B2

    公开(公告)日：2019-07-30

    申请号：US15570225

    申请日：2015-05-15

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

    Inventor： Wesley R. Schalk ,  Jeffrey G. Bingham ,  Justin M. Roman ,  Andrew T. Davis

    IPC: B65H7/06 ,  B65H7/08 ,  B65H7/20 ,  B65H3/06 ,  B65H7/18 ,  B65H29/20

    Abstract: According to an example, an apparatus to prevent media transport jams may include an actuator to load and advance a media within a media path width. The apparatus may also include a first sensor and a second sensor to detect respective edges of the media, in which the first sensor and the second sensor may be positioned outside of a media action area and on opposite sides of the media path width. The apparatus may further include a controller to prevent the actuator from advancing the media along the media path in response to a detection of one or both of the first edge of the media by the first sensor and the second edge of the media by the second sensor.

    BIAS MEMBERS
    46.
    发明申请
    BIAS MEMBERS 审中-公开

    公开(公告)号：US20190149678A1

    公开(公告)日：2019-05-16

    申请号：US16098120

    申请日：2016-06-30

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

    Inventor： John Andrew Bryson ,  Justin M. Roman

    IPC: H04N1/00

    Abstract: In an example, a scanning system includes a scanner device, a first bias member, and a second bias member. The example first bias member is able to apply pressure on a medium towards a scan surface of the scanner device (e.g., apply pressure at a scan zone defined by the boundaries of the scanner device) and the example second bias member is able to orient the medium towards the scan surface before the medium reaches the first bias member.

    Printer mechanism with shape control mechanism to transform hills and valleys
    50.
    发明授权
    Printer mechanism with shape control mechanism to transform hills and valleys 有权
    具有形状控制机制的打印机机构，用于改变山丘和山谷

    公开(公告)号：US09308747B2

    公开(公告)日：2016-04-12

    申请号：US13756331

    申请日：2013-01-31

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

    Inventor： William Winters ,  Bruce G. Johnson ,  Hugo S. Ortiz ,  Justin M. Roman ,  Alvin Marion Post

    IPC: B41J2/01 ,  B41J11/00 ,  B41J11/06

    CPC classification number: B41J11/0005 ,  B41J11/06

    Abstract: A printer mechanism includes a printhead to print on a print medium, and a platen located generally adjacent the printhead such that the platen and the printhead define a print zone therebetween. The platen includes a plurality of elongate ribs that project from an upper surface of the platen in a spaced relationship and positioned to contact a lower surface of the print medium such that the print medium bends downwardly between the ribs to provide an undulated section of the print medium with hills and valleys in the print zone. At least one shape control mechanism transforms each of the hills in the print zone into a corresponding valley in an output path adjacent to the print zone and transforms each of the valleys in the print zone into a corresponding hill in the output path.

    Abstract translation: 打印机机构包括在打印介质上打印的打印头，以及大致邻近打印头的压板，使得压板和打印头在其间限定打印区域。 压板包括多个细长肋，该细长肋以间隔的关系从压板的上表面突出并且定位成与打印介质的下表面接触，使得打印介质向下弯曲在肋之间以提供打印的凹凸部分 中等印度区域有山丘和山谷。 至少一个形状控制机构将打印区域中的每个山丘变换成与打印区域相邻的输出路径中的对应谷，并将打印区域中的每个谷转换成输出路径中的相应山丘。

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