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    • 51. 发明申请
    • FIXING DEVICE AND IMAGE FORMING APPARATUS
    • 固定装置和图像形成装置
    • US20150125193A1
    • 2015-05-07
    • US14531313
    • 2014-11-03
    • Kenji ISHIIHiromasa TAKAGITakayuki SEKIKeitaro SHOJI
    • Kenji ISHIIHiromasa TAKAGITakayuki SEKIKeitaro SHOJI
    • G03G15/20
    • G03G15/2053G03G15/2042G03G2215/2025G03G2215/2029G03G2215/2032G03G2215/2035G03G2215/2038
    • A fixing device includes a fixing rotator, a nip formation pad disposed opposite an inner circumferential surface of the fixing rotator, and a pressure rotator pressed against the nip formation pad via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed. A support is disposed opposite the pressure rotator via the nip formation pad to support the nip formation pad against pressure from the pressure rotator. The nip formation pad conducts heat in a thickness direction thereof perpendicular to an axial direction of the fixing rotator and a recording medium conveyance direction. The nip formation pad includes a multi-conductivity layer having a thermal conductivity varying in the axial direction of the fixing rotator and a support side layer contacting the support and having a thermal conductivity greater than a thermal conductivity of the support.
    • 定影装置包括固定旋转体,与定影旋转体的内周面相对配置的压区形成垫,以及经由固定旋转体压靠在压区形成垫上的压力旋转体,在固定旋转体和压力旋转体之间形成定影辊隙 传送记录媒体。 支撑件通过压区形成垫与压力旋转体相对设置,以支撑压区形成垫抵抗来自压力旋转器的压力。 压区形成垫沿与固定旋转体的轴向垂直的厚度方向和记录介质输送方向传导热量。 压区形成垫包括具有在固定旋转体的轴向上变化的热导率的多导电层和与支撑体接触并具有大于载体的热导率的导热性的支撑侧层。
    • 53. 发明申请
    • FIXING DEVICE AND IMAGE FORMING APPARATUS
    • 固定装置和图像形成装置
    • US20140286684A1
    • 2014-09-25
    • US14207748
    • 2014-03-13
    • Hiromasa TAKAGIKenji ISHIIArinobu YOSHIURA
    • Hiromasa TAKAGIKenji ISHIIArinobu YOSHIURA
    • G03G15/20
    • G03G15/2053G03G2215/2035
    • A fixing device includes an endless belt, a heater disposed opposite the endless belt to heat the endless belt, and a pressing rotary body contacting an outer circumferential surface of the endless belt. A nip formation pad presses against the pressing rotary body via the endless belt to form a fixing nip between the endless belt and the pressing rotary body, through which a recording medium is conveyed. The nip formation pad includes a nip face disposed opposite the endless belt. The nip face includes a first region having an increased thermal conductivity and a second region having a decreased thermal conductivity and being adjacent to the first region in an axial direction of the endless belt.
    • 固定装置包括环形带,与环形带相对设置的用于加热环形带的加热器,以及与环形带的外周表面接触的按压旋转体。 压区形成垫通过环形带压靠压力旋转体,以在环形带和压制旋转体之间形成定影辊隙,记录介质通过该定影辊隙传送。 辊隙形成垫包括与环形带相对设置的辊隙面。 夹持面包括具有增加的导热性的第一区域和具有降低的热导率的第二区域,并且在环形带的轴向方向上与第一区域相邻。