PHOTOSENSITIVE DRUM UNIT AND IMAGE FORMING APPARATUS

    公开(公告)号:US20170364019A1

    公开(公告)日:2017-12-21

    申请号:US15619184

    申请日:2017-06-09

    Inventor: Shota ONISHI

    CPC classification number: G03G15/751 G03G15/757

    Abstract: A photosensitive drum unit includes a photosensitive drum, a drum shaft, a resin frame, and a conducting member. The drum shaft is inserted through the photosensitive drum. The resin frame supports opposite ends of the drum shaft. The conducting member is a substantially coil-shaped spring member having a first end adjacent to the resin frame and a second end opposite to the first end. The conducting member is tapered from the first end toward the second end. The first end forms a first opening and the second end forms a second opening. A circle inscribed in the second opening has a diameter larger than an outer diameter of the drum shaft.

    SHEET DISCHARGE DEVICE AND IMAGE FORMING APPARATUS PROVIDED WITH THE SHEET DISCHARGE DEVICE
    2.
    发明申请
    SHEET DISCHARGE DEVICE AND IMAGE FORMING APPARATUS PROVIDED WITH THE SHEET DISCHARGE DEVICE 审中-公开
    薄片放置装置和图像形成装置用片放置装置提供

    公开(公告)号:US20150115524A1

    公开(公告)日:2015-04-30

    申请号:US14517086

    申请日:2014-10-17

    Inventor: Shota ONISHI

    Abstract: A sheet discharge device includes a sheet discharge roller, a driven roller and a restraint member. A sheet is discharged in a specified discharge direction while passing through a nip portion between the sheet discharge roller and the driven roller. The restraint member is disposed adjacent to the driven roller in a sheet width direction orthogonal to the discharge direction. The restraint member makes contact with a sheet surface of the sheet. When the sheet passes through the nip portion, if the pressing force received from the sheet is equal to or larger than a predetermined value, the restraint member is slid in the sheet width direction by the pressing force.

    Abstract translation: 片材排出装置包括排纸辊,从动辊和约束件。 片材在通过片材排出辊和从动辊之间的夹持部分时以特定的排出方向排出。 约束构件在与排出方向正交的片材宽度方向上与从动辊相邻配置。 约束构件与片材的片材表面接触。 当片材通过夹持部时,如果从片材接收的按压力等于或大于预定值,则约束部件通过按压力在片材宽度方向上滑动。

    IMAGE FORMING APPARATUS
    4.
    发明申请

    公开(公告)号:US20220100132A1

    公开(公告)日:2022-03-31

    申请号:US17488754

    申请日:2021-09-29

    Inventor: Shota ONISHI

    Abstract: An image forming apparatus includes an image forming device, a fixing device, a high voltage power supply board, a main body housing and a door. The door is provided in the main body housing so as to face the fixing device. The fixing device includes a fixing member, a pressure roller, a charge applying device, a fixing housing and a contact member. The fixing member is rotatable. The charge applying device is applied with a voltage from the high voltage power supply board and applies a charge to the fixing member. The fixing housing stores the fixing member, the pressure roller and the charge applying device. The contact member is provided in the fixing housing at a position accessible by opening the door and to which a feed line on the high voltage power supply board side and a feed line on the charge applying device side are connected.

    FIXING DEVICE AND IMAGE FORMING APPARATUS

    公开(公告)号:US20220100133A1

    公开(公告)日:2022-03-31

    申请号:US17488993

    申请日:2021-09-29

    Inventor: Shota ONISHI

    Abstract: A fixing device includes a heating roller, a pressing roller, a heating part, a heat insulating member and a bearing. The pressing roller holds a sheet with the heating roller. The heating part heats the heating roller. The heat insulating member is fitted on an end portion in an axial direction of the heating roller, has a heat-resistance to heat applied from the heating roller and has an inclined shape in which an outer diameter becomes small toward an inside in the axial direction of the heating roller. The bearing supports the heating roller through the heat insulating member.

    IMAGE FORMING APPARATUS
    6.
    发明申请

    公开(公告)号:US20170090355A1

    公开(公告)日:2017-03-30

    申请号:US15276405

    申请日:2016-09-26

    Inventor: Shota ONISHI

    CPC classification number: G03G15/1605 G03G15/657 G03G21/168 G03G2215/0132

    Abstract: An image forming apparatus of the present disclosure includes an image carrier, an intermediate transfer unit, a secondary transfer roller, and a fixing unit. The intermediate transfer unit includes an intermediate transfer belt, and a driving and driven rollers that rotatably stretch the intermediate transfer belt, and the intermediate transfer unit is insertable/drawable with respect to an apparatus main body. The secondary transfer roller and the intermediate transfer belt constitute a nip portion. The fixing unit is disposed above the intermediate transfer unit, and fixes a toner image on a recording medium. The intermediate transfer unit includes an entry restriction member that restricts entry of a recording medium into a space between the intermediate transfer unit and the fixing unit.

    FIXING DEVICE AND IMAGE FORMING APPARATUS
    7.
    发明申请
    FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
    固定装置和图像形成装置

    公开(公告)号:US20160187821A1

    公开(公告)日:2016-06-30

    申请号:US14963445

    申请日:2015-12-09

    Inventor: Shota ONISHI

    Abstract: A windbreak plate is assembled to a thermistor mounting member for mounting a thermistor to a housing, and the thermistor is covered by the windbreak plate from a paper entry path side. The thermistor mounting member has exposure parts which are exposed to the paper entry path from the windbreak plate. The exposure parts (a second plate part and a third plate part) are level with the windbreak plate and constitutes a part of the windbreak plate.

    Abstract translation: 将防风板组装到用于将热敏电阻安装到壳体的热敏电阻安装构件,并且热敏电阻由防风板从进纸路径侧覆盖。 热敏电阻安装部件具有从防风板暴露于纸张进入路径的曝光部分。 曝光部分(第二板部分和第三板部分)与防风板平齐并构成防风板的一部分。

    SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS THEREWITH

    公开(公告)号:US20250011110A1

    公开(公告)日:2025-01-09

    申请号:US18760512

    申请日:2024-07-01

    Inventor: Shota ONISHI

    Abstract: A sheet feeding apparatus includes a sheet storage portion that stores sheets. The sheet storage portion has a bottom wall portion and a circumferential wall portion. The circumferential wall portion has a pair of support protruding portions and a groove portion. The pair of support protruding portions protrude from opposite inner circumferential faces facing each other along the axial direction of a pivot axis to be inserted in through holes, and pivotably support the sheet stacking plate. The groove portion is concave outward along the axial direction from the opposite inner circumferential faces facing each other along the axial direction of the pivot axis, and extends along the pivoting direction of the projection portion. With the sheet stacking plate raised, the projection portion is disposed in the groove.

    IMAGE FORMING APPARATUS
    9.
    发明申请

    公开(公告)号:US20220082997A1

    公开(公告)日:2022-03-17

    申请号:US17423079

    申请日:2019-12-11

    Inventor: Shota ONISHI

    Abstract: An image forming apparatus includes a fixing device, a discharge roller pair, a cooling fan, a detection portion, and a cooling fan control unit. The discharge roller pair discharges a sheet on which a toner image has been fixed in the fixing device to a discharge tray via a discharge port. The cooling fan cools the sheet discharged on the discharge tray by blowing air thereto. The detection portion detects a rear end of the sheet being conveyed from the fixing device toward the discharge port. The cooling fan control unit performs control so that, within a prescribed period from a point in time of detection of the rear end of the sheet by the detection portion to when the rear end passes through the discharge roller pair, a rotation speed of the cooling fan is reduced to be lower than a reference speed used to cool the sheet.

    FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME
    10.
    发明申请
    FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME 有权
    固定装置和图像形成装置,包括它们

    公开(公告)号:US20160116876A1

    公开(公告)日:2016-04-28

    申请号:US14920349

    申请日:2015-10-22

    Inventor: Shota ONISHI

    CPC classification number: G03G15/206 G03G15/2032 G03G15/2064

    Abstract: In a state in which a swing lever has been driven to a first swing position by a driving mechanism, a compression coil spring has a natural length and a tension coil spring has a first predetermined length longer than a natural length, so that press-contact force between both the rollers becomes first press-contact force. On the other hand, in a state in which the swing lever has been driven to a second swing position by the driving mechanism, the compression coil spring has a second predetermined length shorter than the natural length and the tension coil spring has the natural length, so that the press-contact force between both the rollers becomes second press-contact force.

    Abstract translation: 在通过驱动机构将摆动杆驱动到第一摆动位置的状态下,压缩螺旋弹簧具有自然长度,并且张力螺旋弹簧具有比自然长度长的第一预定长度,使得压接 两辊之间的力成为第一压力接触力。 另一方面,在通过驱动机构将摆动杆驱动到第二摆动位置的状态下,压缩螺旋弹簧具有比自然长度短的第二预定长度,并且张力螺旋弹簧具有自然长度, 使得两个辊之间的压力接触力成为第二压力接触力。

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