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    Printing through automatic sorting
    4.
    发明授权
    Printing through automatic sorting 有权

    公开(公告)号：US10754601B2

    公开(公告)日：2020-08-25

    申请号：US16491687

    申请日：2018-02-13

    Applicant: HP PRINTING KOREA CO., LTD.

    Inventor： Soo Young Cho ,  Se Young Kim ,  Eun Kyung Yun ,  Pyung Hwa Lee

    IPC: G06F3/12

    Abstract: An image forming apparatus for printing through automatic sorting is described. A communication interface obtains data from a plurality of external apparatuses. A processor, in response to the obtaining, collects the obtained data according to a plurality of groups sorted based on identification information included in the obtained data, and generates a print command when a predetermined condition is satisfied. An image forming job performer prints data collected in the plurality of groups according to the generated print command.

    Development cartridge having a switch member to rotate developing unit to a development position
    5.
    发明授权
    Development cartridge having a switch member to rotate developing unit to a development position 有权

    公开(公告)号：US10698362B2

    公开(公告)日：2020-06-30

    申请号：US15614152

    申请日：2017-06-05

    Applicant: HP PRINTING KOREA CO., LTD.

    Inventor： Sang-hoon Lee ,  Seung-beom Yang ,  Seung-gweon Lee

    IPC: G03G21/18 ,  G03G15/01 ,  G03G15/04 ,  G03G15/08 ,  G03G15/00 ,  G03G21/16

    Abstract: Provided is a development cartridge mounted on a main body of an image forming apparatus. The development cartridge includes a photoconductive unit, a developing unit coupled to the photoconductive unit so as to rotate to a development position and a release position, and an elastic member that provides an elastic force to maintain the developing unit at the development position. A switching member is mounted on a rotation shaft of the developing roller to be rotatable about a rotation shaft of a developing roller. The switching member is switched to a first state where the switching member contacts an interfering portion of the photoconductive unit and rotates the developing unit to the release position and to a second state where the switching member is separated from the interfering portion and allows the developing unit to rotate to the development position due to the elastic force of the elastic member.

    Electrophotographic image forming apparatus and method for detecting release of development nip
    6.
    发明授权
    Electrophotographic image forming apparatus and method for detecting release of development nip 有权

    公开(公告)号：US10564568B2

    公开(公告)日：2020-02-18

    申请号：US16239896

    申请日：2019-01-04

    Applicant: HP Printing Korea Co., LTD.

    Inventor： Won-chul Jung ,  Joon-hee Kim ,  Young-hwan Kim

    IPC: G03G15/08 ,  G03G15/06 ,  G03G15/16 ,  G03G15/00 ,  G03G21/18

    Abstract: Provided is a method of detecting release of a development nip of an image forming apparatus that includes a photoconductor and a developing roller to contact each other to form a development nip and to be away from each other to release the development nip. The method includes obtaining a reference load, after charging the photoconductor in a state in which the development nip is formed, by measuring a load of a transfer system including the photoconductor and a transfer roller, release the development nip and blocking light irradiated from an exposing unit to the photoconductor, obtaining a detected load by measuring a load of the transfer system after exposing the photoconductor, and determining whether the development nip is normally released based on the reference load and the detected load.

    IMAGE FORMING APPARATUS CAPABLE OF DETECTING DEVELOPMENT NIP DISENGAGING ERROR AND METHOD OF DETECTING DEVELOPMENT NIP DISENGAGING ERROR
    8.
    发明申请
    IMAGE FORMING APPARATUS CAPABLE OF DETECTING DEVELOPMENT NIP DISENGAGING ERROR AND METHOD OF DETECTING DEVELOPMENT NIP DISENGAGING ERROR 审中-公开

    公开(公告)号：US20190369539A1

    公开(公告)日：2019-12-05

    申请号：US16478030

    申请日：2018-01-18

    Applicant: HP PRINTING KOREA CO., LTD.

    Inventor： Sang Jin PARK ,  Sung Min PARK ,  Hyo Joong KIM ,  Jong Woo LEE ,  Mi Young KIM

    IPC: G03G15/00

    Abstract: An image forming apparatus capable of detecting a development nip disengaging error and a method of detecting a development nip disengaging error are provided. According to an example method, a test pattern is formed on a photoconductor of an image forming apparatus, the test pattern transferred to an intermediate transfer belt is detected through a sensor from a time when an operation of an adjusting member moving a developing roller is controlled such that the developing roller moves from a disengaging position where the developing roller is spaced from the photoconductor to disengage a development nip from the photoconductor to a developing position where the developing roller is in contact with the photoconductor to form the development nip, and whether the development nip disengaging error occurred is determined based on the detected test pattern.

    DEVELOPMENT CARTRIDGE HAVING SEALING MEMBER
    9.
    发明申请
    DEVELOPMENT CARTRIDGE HAVING SEALING MEMBER 审中-公开

    公开(公告)号：US20190361372A1

    公开(公告)日：2019-11-28

    申请号：US16478285

    申请日：2018-01-17

    Applicant: HP PRINTING KOREA CO., LTD.

    Inventor： Jong In KIM

    IPC: G03G15/08 ,  G03G21/12

    Abstract: Disclosed is a development cartridge detachable from a main body of an image forming apparatus. The development cartridge includes a lateral waste toner sealing member contacting an end portion of a photosensitive drum in a lengthwise direction of the photosensitive drum to prevent a waste toner from leaking through the end portion of the photosensitive drum, and a photosensitive frame including a waste toner container to contain the waste toner, a first attachment surface, to which the lateral waste toner sealing member is attached, and a side wall to form a boundary at an upstream side of the first attachment surface with respect to a rotation direction of the photosensitive drum. The lateral waste toner sealing member includes an opposite surface facing the side wall, and a protrusion protruding towards the side wall is provided on the opposite surface.

    Image acquiring apparatus and method and image forming apparatus
    10.
    发明授权
    Image acquiring apparatus and method and image forming apparatus 有权

    公开(公告)号：US10484567B2

    公开(公告)日：2019-11-19

    申请号：US15091022

    申请日：2016-04-05

    Applicant: HP PRINTING KOREA CO., LTD.

    Inventor： Kyoung-Youn Lee ,  Jung-Han Kim

    IPC: H04N1/00 ,  H04N1/203 ,  H04N1/409 ,  H04N1/12

    Abstract: Disclosed is an image acquiring method. The image acquiring method includes receiving an instruction to acquire a one-side image to acquire an image on a first side of a document; obtaining a penetrated image of the first side of the document, which is seen on the second side, with a second image sensor for obtaining an image on a second side of the document, while the document is being fed; obtaining an image on the first side of the document with a first image sensor for obtaining an image on the first side of the document, while the document is being fed; and processing the image on the first side based on the penetrated image of the first side.

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