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    • 22. 发明申请
    • Image forming apparatus including fixer having fixing roller and mehtods of manufacturing the same
    • 图像形成装置包括具有定影辊的定影器及其制造方法
    • US20080013996A1
    • 2008-01-17
    • US11826049
    • 2007-07-12
    • Akiko Ito
    • Akiko Ito
    • G03G15/20
    • G03G15/2053
    • A fixing roller and method of manufacturing the same. The fixing roller includes a fixing sleeve configured to fuse and fix a toner image on a recording medium and a fixing assist roller configured to be inserted into the fixing sleeve. The fixing sleeve includes a first heating layer having a Curie point. The first heating layer is configured to be heated with a magnetic flux. The fixing assist roller includes an elastic insulating layer and a first low-resistivity layer. The elastic insulating layer is formed on an outer circumference of the fixing assist roller. The first low-resistivity layer is formed under the elastic insulating layer and has a volume resistivity not greater than 5.0×10−8 Ωm. Convexities and concavities are alternately formed on an outer surface of the elastic insulating layer along a circumferential direction thereof.
    • 定影辊及其制造方法。 定影辊包括被配置为将调色剂图像熔合并固定在记录介质上的定影套筒和构造成插入定影套筒中的定影辅助辊。 定影套筒包括具有居里点的第一加热层。 第一加热层被配置为用磁通量加热。 固定辅助辊包括弹性绝缘层和第一低电阻层。 弹性绝缘层形成在固定辅助辊的外周上。 第一低电阻率层形成在弹性绝缘层下方,体积电阻率不大于5.0×10 -8Ω。 沿弹性绝缘层的圆周方向的外表面交替地形成凸部和凹部。
    • 26. 发明申请
    • Fixing device and image forming apparatus including same
    • 固定装置及其成像装置
    • US20080232873A1
    • 2008-09-25
    • US12076696
    • 2008-03-21
    • Satoshi UenoKenji IshiiTadashi OgawaAkiko ItoHiroshi Seo
    • Satoshi UenoKenji IshiiTadashi OgawaAkiko ItoHiroshi Seo
    • G03G15/20
    • G03G15/2007G03G15/2053
    • An image forming apparatus includes a fixing device to fix a toner image on a recording medium by applying heat. Such a fixing device includes at least a magnetic flux generator, a heat generating roller, a magnetic shunt layer, and a protective layer. The magnetic flux generator is configured to generate magnetic flux. The heat generating roller including a heat generating layer is configured to generate heat by the magnetic flux. The magnetic shunt layer may be formed independently of the heat generating layer. The protective layer is provided on an inner surface of the magnetic shunt layer and configured to cover a crack formed in the magnetic shunt layer during fabrication of the magnetic shunt layer. An image is fixed onto the recording medium by the heat from the heat generating roller. Alternatively, the magnetic shunt layer may be integrally provided with the heat generating layer.
    • 图像形成装置包括通过施加热量将调色剂图像定影在记录介质上的定影装置。 这种定影装置至少包括磁通量发生器,发热辊,磁分流层和保护层。 磁通发生器被配置为产生磁通量。 包括发热层的发热辊被配置为通过磁通产生热量。 磁分路层可以独立于发热层形成。 保护层设置在磁分路层的内表面上,并且构造成在制造磁分路器层期间覆盖形成在磁分路层中的裂纹。 通过来自发热辊的热将图像固定在记录介质上。 或者,磁分路层可以与发热层一体地设置。