Fixing device and image forming apparatus incorporating same

    公开(公告)号:US11927900B2

    公开(公告)日:2024-03-12

    申请号:US18147454

    申请日:2022-12-28

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2028 G03G15/2053

    摘要: A fixing device includes a fixing rotator, a pressure rotator, a pressure plate, a pressing force, an entrance guide, an exit guide, and a transmission. The pressure rotator presses the fixing rotator to form a nip between the fixing rotator and the pressure rotator. The pressure plate rotates about a fulcrum to press the pressure rotator. The pressing force adjuster adjusts a pressing force of the pressure rotator. The entrance guide guides a recording medium entering the nip. The exit guide guides the recording medium ejected from the nip. The transmission transmits a displacement of the pressure plate to the entrance guide and the exit guide.

    FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

    公开(公告)号:US20230236533A1

    公开(公告)日:2023-07-27

    申请号:US18063326

    申请日:2022-12-08

    IPC分类号: G03G15/20

    摘要: A fixing device includes a fixing rotator, a pressure rotator, a pressure plate, a pressing force adjuster, an entrance guide, an exit guide, and a guide. The pressure rotator presses the fixing rotator to form a nip between the fixing rotator and the pressure rotator. The pressure plate rotates about a fulcrum to press the pressure rotator. The pressing force adjuster adjusts a pressing force of the pressure rotator. The entrance guide guides a recording medium entering the nip. The exit guide guides the recording medium ejected from the nip. The guide guides the pressure rotator in a direction inclined from a line connecting a rotation center of the fixing rotator and a rotation center of the pressure rotator toward downstream in a conveyance direction of the recording medium.

    Fixing device and image forming apparatus employing the fixing device
    18.
    发明授权
    Fixing device and image forming apparatus employing the fixing device 有权
    固定装置和采用定影装置的成像装置

    公开(公告)号:US08417137B2

    公开(公告)日:2013-04-09

    申请号:US12461314

    申请日:2009-08-07

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2039 G03G15/2032

    摘要: A fixing device includes a rotary fixing member, a counter member to contact the rotary fixing member, a first heater to heat the rotary fixing member, a driving unit to rotate the rotary fixing member, a temperature detector to detect a temperature of the rotary fixing member, and a contact-and-separation unit to switch between contact and separation states of the rotary fixing member relative to the counter member. In a temperature-raising operation, the driving unit causes the rotary fixing member to rotate when the temperature detector detects that the temperature of the rotary fixing member has reached a first setting temperature. The contact-and-separation unit causes the rotary fixing member in rotation and the counter member to contact each other when the temperature detector detects that the temperature of the rotary fixing member has reached a second setting temperature that is higher than the first setting temperature.

    摘要翻译: 定影装置包括旋转固定构件,与旋转固定构件接触的计数构件,用于加热旋转固定构件的第一加热器,旋转定影构件旋转的驱动单元,温度检测器,用于检测旋转固定件的温度 构件和接触分离单元,以在旋转固定构件相对于计数构件的接触和分离状态之间切换。 在升温动作中,当温度检测器检测出旋转固定部件的温度达到第一设定温度时,驱动部使旋转固定部件旋转。 当温度检测器检测到旋转固定件的温度达到高于第一设定温度的第二设定温度时,接触分离单元使旋转固定部件旋转,并且相对部件彼此接触。

    FIXING DEVICE AND IMAGE FORMING APPARATUS
    19.
    发明申请

    公开(公告)号:US20180107142A1

    公开(公告)日:2018-04-19

    申请号:US15727792

    申请日:2017-10-09

    IPC分类号: G03G15/20

    摘要: A fixing device includes a fixing rotator including a primary portion and a secondary portion disposed outboard from the primary portion in an axial direction of the fixing rotator. A pressure rotator contacts the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed. A primary heater heats the primary portion of the fixing rotator. A secondary heater heats the secondary portion of the fixing rotator. A primary temperature detector is isolated from the fixing rotator and detects a temperature of the primary portion of the fixing rotator. A secondary temperature detector contacts the fixing rotator and detects a temperature of the secondary portion of the fixing rotator. The primary temperature detector has a thermal time constant that is smaller than a thermal time constant of the secondary temperature detector.

    Fixing device including a pressure rotator setting an exit guide angle and image forming apparatus incorporating same

    公开(公告)号:US12025930B2

    公开(公告)日:2024-07-02

    申请号:US18063326

    申请日:2022-12-08

    IPC分类号: G03G15/20

    摘要: A fixing device includes a fixing rotator, a pressure rotator, a pressure plate, a pressing force adjuster, an entrance guide, an exit guide, and a guide. The pressure rotator presses the fixing rotator to form a nip between the fixing rotator and the pressure rotator. The pressure plate rotates about a fulcrum to press the pressure rotator. The pressing force adjuster adjusts a pressing force of the pressure rotator. The entrance guide guides a recording medium entering the nip. The exit guide guides the recording medium ejected from the nip. The guide guides the pressure rotator in a direction inclined from a line connecting a rotation center of the fixing rotator and a rotation center of the pressure rotator toward downstream in a conveyance direction of the recording medium.