Development device and image forming apparatus

    公开(公告)号:US11507014B2

    公开(公告)日:2022-11-22

    申请号:US17489110

    申请日:2021-09-29

    Inventor: Hiroaki Takai

    Abstract: A development device is attachable to and detachable from an apparatus main body in an inserting/drawing direction. The development device includes a holder portion, a hook, a lever portion, and an elastic arm portion. The holder portion supports a board connectable to a controller of the apparatus main body. The hook is engageable with a recess of the apparatus main body. The lever portion is provided with the hook. At least one elastic arm portion connects the holder portion and the lever portion. In a middle of an attachment to the apparatus main body, the hook interferes with the apparatus main body to shift the lever portion in a direction crossing the inserting/drawing direction and to elastically deform the elastic arm portion. When the hook is engaged with the recess, the elastic deformation of the elastic arm portion is released and the board is connected to the controller.

    Developing device, image forming apparatus and method of manufacturing developing device

    公开(公告)号:US10990031B2

    公开(公告)日:2021-04-27

    申请号:US16925206

    申请日:2020-07-09

    Inventor: Hiroaki Takai

    Abstract: A developing device includes an agitating member, a magnetic roller, a lower housing, an upper housing and a blade member. The lower housing includes a first housing part including a first edge having a first contact face and a first facing surface at a blade member's side. The upper housing includes a second housing part including a second edge having a second contact face contact with the first contact face and a second facing surface facing to the first facing surface. The blade member is attached to the upper housing and arranged at a gap to the lower housing. Between the first and second facing surfaces, a width at a blade member's side is broader than a width at a first contact face's side. The first and second facing surfaces are bonded by an adhesive agent. The gap is sealed by the adhesive agent.

    Recording medium storage apparatus and image forming apparatus therewith
    3.
    发明授权
    Recording medium storage apparatus and image forming apparatus therewith 有权
    记录媒体存储装置及其图像形成装置

    公开(公告)号:US09104161B2

    公开(公告)日:2015-08-11

    申请号:US14522231

    申请日:2014-10-23

    CPC classification number: G03G15/6502 G03G15/6505 G03G2215/00383

    Abstract: A recording medium storage apparatus has a storage cassette and a lock mechanism. The lock mechanism restricts movement of the storage cassette in the drawing direction. The lock mechanism has an engaging portion on an apparatus body and an engaged portion on the storage cassette. While the storage cassette is drawn out of the apparatus body, an abutting portion of the engaging portion moves along a first slope on the engaged portion toward a peak portion while swinging in a second direction in which it retracts from the engaged portion, and meanwhile the engaged portion rotates in a third direction so that the peak portion is displaced from a protruding position to a guiding position.

    Abstract translation: 记录介质存储装置具有存储盒和锁定机构。 锁定机构限制存储盒在拉出方向上的移动。 锁定机构在设备主体和存储盒上的接合部分上具有接合部分。 当存储盒被从设备主体拉出时,接合部分的抵接部分沿被接合部分的第一斜面朝着峰部移动,同时在从接合部分缩回的第二方向上摆动,同时 被接合部分沿第三方向旋转,使得峰部分从突出位置移位到引导位置。

    Developing device and image forming apparatus including same

    公开(公告)号:US11231666B1

    公开(公告)日:2022-01-25

    申请号:US17377252

    申请日:2021-07-15

    Inventor: Hiroaki Takai

    Abstract: A developing device includes a developing container, a bearing, a stirring transport member, and a seal member. The bearing is inserted and fixed to a through hole provided to the developing container. The bearing includes a bearing side engaging part formed on outer periphery surface of the bearing to have outer diameter different from that of other part in the axial direction of the bearing, a first outer periphery part positioned inside the bearing side engaging part in the axial direction, and a second outer periphery part positioned outside the same in the axial direction. A container side engaging part engaging with the bearing side engaging part is formed on inner periphery surface of the through hole at the same position in the axial direction as the bearing side engaging part, to have inner diameter different from that of other part in the axial direction of the through hole.

    Sheet storage device, image forming apparatus

    公开(公告)号:US10040648B2

    公开(公告)日:2018-08-07

    申请号:US15456114

    申请日:2017-03-10

    Abstract: A sheet storage device includes a case, a lift plate, and a lift attachment. The lift attachment is fixed, in a detachable manner, to a central portion of the lift plate in a width direction. The lift attachment supports a lower surface of the sheets stacked on the lift plate at a position higher than the upper surface of the lift plate. The lift attachment includes a base portion and a pair of arm portions. The pair of arm portions are respectively formed to extend from an end portion of the base portion that is on a downstream side in the sheet feed direction, to opposite directions in the width direction.

    Sheet feed device and image forming apparatus including the same
    7.
    发明授权
    Sheet feed device and image forming apparatus including the same 有权
    片材进给装置和包括它的成像装置

    公开(公告)号:US09022382B2

    公开(公告)日:2015-05-05

    申请号:US14334436

    申请日:2014-07-17

    Abstract: A sheet feed device includes a feed unit and a sheet loading cassette. The feed unit includes a separation conveyance portion that is composed of a feed member and a separation member, a separation holder that supports the separation member and is swingable, and a pressing member that presses the separation holder. The sheet loading cassette includes a grip portion, a pressure release member that, in conjunction with an operation of drawing out the sheet loading cassette, comes into contact with the pressing member, an operation lever that is provided at the grip portion. In a state where the sheet loading cassette is inserted in the apparatus main body, the operation lever is gripped together with the grip portion, and thus the pressure release member slides to come into contact with the pressing member, so that the pressing member is released from the separation holder.

    Abstract translation: 片材进给装置包括进给单元和片材装载盒。 进给单元包括由进给构件和分离构件构成的分离传送部分,支撑分离构件并且可摆动的分离保持器和按压分离保持器的按压构件。 片材装载盒包括握持部分,压力释放构件,其结合拉出纸张装载盒的操作与按压构件接触,设置在抓握部分处的操作杆。 在片材装载盒插入装置主体中的状态下,操作杆与握持部一起夹紧,因此,压力释放部件滑动以与按压部件接触,从而使按压部件被释放 从分离架。

    Development device and image forming apparatus

    公开(公告)号:US10824093B2

    公开(公告)日:2020-11-03

    申请号:US16775894

    申请日:2020-01-29

    Abstract: A development device includes a rotational member and a housing. The housing includes a lower housing and an upper housing. The lower housing has an opened upper face. The upper housing has an opened lower face. A first edge portion around the opened upper face has a recess, a first contact face and a first opposite face. The first contact face is formed inside the recess. The first opposite face is formed outside the recess. A second edge portion around the opened lower face has a protrusion, a second contact face and a second opposite face. The protrusion is fitted into the recess. The second contact face comes into contact with the first contact face. The second opposite face opposes the first opposite face. The first and second contact faces are higher than the first and second opposite faces. The recess and the protrusion are adhered with an adhesive.

    Sheet feeding cartridge and image forming apparatus

    公开(公告)号:US09725263B2

    公开(公告)日:2017-08-08

    申请号:US15075584

    申请日:2016-03-21

    Abstract: A sheet feeding cartridge storing a sheet conveyed orthogonally to a width direction includes a main body, a pair of side cursors and a restricting member. The main body has a bottom part including a sheet placement face and allows sheets of different sizes to be placed. The side cursors mutually slide in approaching and separating directions and restrict a position in the width direction. The restricting member comes into contact with a side edge in the width direction at a position separated from one of the side cursors to an upstream side in a conveyance direction and restricts the position in the width direction. The restricting member is attachably/detachably provided in the main body at each of plural positions along the width direction and restricts the side edge of each of the sheets of different sizes in the width direction.

    SHEET CONVEYING DEVICE AND IMAGE FORMING APPARATUS
    10.
    发明申请
    SHEET CONVEYING DEVICE AND IMAGE FORMING APPARATUS 有权
    输送装置和图像形成装置

    公开(公告)号:US20130334759A1

    公开(公告)日:2013-12-19

    申请号:US13917971

    申请日:2013-06-14

    CPC classification number: B65H29/00 G03G15/6552 G03G21/1638 G03G2215/00544

    Abstract: A sheet conveying device includes a housing provided with first and second side surfaces facing each other, and third and fourth side surfaces substantially orthogonal to the first and second side surfaces and facing each other. An entrance port is formed in the first side surface, an exit port is formed in the second side surface, and a sheet conveying path is formed in the housing. The housing includes first and second guide members constituting the sheet conveying path. The first and second guide members are connected to be pivotally movable relative to each other on the side of the third side surface. A gap portion is formed between the first and second guide members in a region from the connection portion on the side of the third side surface to the first side surface.

    Abstract translation: 片材输送装置包括设置有彼此面对的第一和第二侧表面的壳体,以及基本上与第一和第二侧表面正交并且彼此面对的第三和第四侧表面。 在第一侧面形成有入口,在第二侧面形成出口,在壳体内形成有片材输送路。 壳体包括构成片材传送路径的第一和第二引导构件。 第一和第二引导构件被连接成能够在第三侧表面侧相对于彼此枢转运动。 在从第三侧表面侧的连接部分到第一侧表面的区域中,在第一和第二引导构件之间形成间隙部分。

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