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    COUPLING STRUCTURE FOR A DEVELOPING ROLLER OF AN IMAGE FORMING APPARATUS
    1.
    发明申请
    COUPLING STRUCTURE FOR A DEVELOPING ROLLER OF AN IMAGE FORMING APPARATUS 有权

    公开(公告)号：US20230077968A1

    公开(公告)日：2023-03-16

    申请号：US17792179

    申请日：2020-04-24

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

    Inventor： Gabriel S. MCDANIEL ,  Justin PETTINGILL ,  Jeffrey H. LUKE

    IPC: G03G21/16 ,  G03G15/08

    Abstract: An image forming apparatus includes a development cartridge having a developing roller. The developing roller includes a roller body, and a shaft to pass through a central axis of the roller body. A coupling structure is disposed at an end part of the shaft, is movable from a first position to a second position, and includes a first coupling piece and a second coupling piece. Positions of the first coupling piece and the second coupling piece are maintained with respect to one another by a static frictional force between surfaces of the first coupling piece and the second coupling piece to hold the coupling structure in the first position. When a predetermined force overcomes the static frictional force, the first coupling piece and the second coupling piece disengage from one another to allow the coupling structure to move from the first position to the second position.

    ASYMMETRIC KEY FEATURES
    2.
    发明申请
    ASYMMETRIC KEY FEATURES 有权

    公开(公告)号：US20210165340A1

    公开(公告)日：2021-06-03

    申请号：US17047875

    申请日：2018-08-30

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

    Inventor： Sean Daniel FITZGERALD ,  Gabriel Scott MCDANIEL ,  Jeffrey H. LUKE

    IPC: G03G15/08 ,  G03G21/18 ,  B41J2/175 ,  B33Y30/00

    Abstract: An example print component includes a container interface with a guide feature to guide rotation and a rotationally asymmetric key feature. An example toner component includes a recess to receive a toner container, a guide feature to guide rotation of the toner container, and an asymmetric key feature embedded in the guide feature to guide a container material interface towards a component material interface upon rotation. An example container may have a periphery with a rotationally asymmetric surface plane to guide rotation of the container and a protrusion extending from the periphery that has a key feature defined by edges rotationally asymmetric with respect to the periphery. An example container may include a mechanical interface including an asymmetrically-located key feature that, upon rotation of the print material container, generates a sealing force substantially perpendicular to the direction of rotation.

    SEALED PRINT PARTICLE TRANSFER INTERFACE
    3.
    发明申请
    SEALED PRINT PARTICLE TRANSFER INTERFACE 有权

    公开(公告)号：US20210237356A1

    公开(公告)日：2021-08-05

    申请号：US17049114

    申请日：2018-08-30

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

    Inventor： Jeffrey H. LUKE ,  Mathew Craig LAVIGNE

    IPC: B29C64/321 ,  B33Y40/00 ,  G03G15/08

    Abstract: Examples of a print particle transfer interface of a donor container are described herein. Some examples of the print particle transfer interface include a static interface portion to engage a receiving container. The static interface portion includes a static opening. Some examples of the print particle transfer interface include a rotating output assembly with a cylindrical valve seat and a seal component surrounding a valve opening. In some examples, the cylindrical valve seat rotates with respect to the static interface portion to align the valve opening for dispensing print particle to the receiving container.

    BIASED PRINT GASKETS
    4.
    发明申请
    BIASED PRINT GASKETS 有权

    公开(公告)号：US20210229449A1

    公开(公告)日：2021-07-29

    申请号：US16972210

    申请日：2018-11-14

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

    Inventor： Jeffrey H. LUKE ,  Mathew LAVIGNE

    IPC: B41J2/175

    Abstract: In various examples, biased print gaskets can include a non-transitory machine-readable medium storing instructions executable by a processing resource to charge a material included in a gasket with a first bias voltage to repel print particles from a surface of the gasket, cease charging the material with the first bias voltage and charge the material with a second bias to attract print particles to a surface of the gasket.

    LOCKING NOZZLES
    5.
    发明申请
    LOCKING NOZZLES 有权

    公开(公告)号：US20210154689A1

    公开(公告)日：2021-05-27

    申请号：US17048412

    申请日：2018-08-30

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

    Inventor： Mathew LAVIGNE ,  Jeffrey H. LUKE

    IPC: B05B1/32 ,  B41J2/175 ,  B33Y40/00 ,  B29C64/321

    Abstract: An example of a device (100) may include a valve body (108); a printing substance dispensing nozzle (110) rotatable within the valve body (108) between a sealed orientation and a dispensing orientation; and a locking rod extending through a locking rod window (146) in the valve body (108) and into a locking rod channel (144) in the printing substance dispensing nozzle (110), wherein the locking rod is movable within the locking rod window (146) between a first position, fixing the printing substance dispensing nozzle (110) in the sealed orientation, and a second position allowing rotation of the printing substance dispensing nozzle (110) to the dispensing orientation.

    MAGNETIC COUPLING STRUCTURE FOR AN IMAGE FORMING APPARATUS
    6.
    发明公开
    MAGNETIC COUPLING STRUCTURE FOR AN IMAGE FORMING APPARATUS 审中-公开

    公开(公告)号：US20230324844A1

    公开(公告)日：2023-10-12

    申请号：US18024492

    申请日：2020-09-28

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

    Inventor： Elizabeth A. SWANSON ,  Gabriel S. MCDANIEL ,  Jeffrey H. LUKE

    IPC: G03G21/16

    CPC classification number: G03G21/1647 ,  G03G21/1676 ,  G03G2221/1657

    Abstract: An image forming apparatus includes a development cartridge having a developing roller. A coupler for the image forming apparatus includes a shaft and a coupling structure to rotate the developing roller. The coupling structure is disposed at an end part of the shaft, is movable along an axial direction of the shaft and coupleable with another coupling structure of a print engine of the image forming apparatus. The coupling structure includes a body, a magnet disposed in the body to cause the coupling structure to be attracted to the another coupling structure so that the coupling structure is aligned with the another coupling structure, and a plurality of protrusions which protrude from the body in the axial direction to engage with the another coupling structure, the plurality of protrusions having at least one side with an inclined face.

    MATING INTERFACE GASKETS
    8.
    发明申请
    MATING INTERFACE GASKETS 有权

    公开(公告)号：US20210146691A1

    公开(公告)日：2021-05-20

    申请号：US17048403

    申请日：2018-08-30

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

    Inventor： Mathew LAVIGNE ,  Jeffrey H. LUKE ,  Dean RICHTSMEIER

    IPC: B41J2/175 ,  G03G15/08 ,  B29C64/321

    Abstract: An example of a system may include a receiving-side mating interface, including a printing substance inlet port encompassed by a receiving-side gasket material; and a dispensing-side mating interface including a printing substance dispensing nozzle, wherein the printing substance dispensing nozzle includes a dispensing-side gasket material slide-able along an internal face of the dispensing-side mating interface to seal an orifice of the printing substance dispensing nozzle within the dispensing-side mating interface and a window through the dispensing-side mating interface, wherein the dispensing-side gasket material slides against the receiving-side gasket material through the window when the outlet of the dispensing nozzle is rotated within the dispensing-side mating interface.

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