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    • 3. 发明授权
    • Optical deflector of air bearing type
    • 空气轴承类型的光学偏转器
    • US5069515A
    • 1991-12-03
    • US584615
    • 1990-09-19
    • Yukio ItamiMitsuo SuzukiTeruo OhneKenichi HoshiEiri SagaeYoshio Hashimoto
    • Yukio ItamiMitsuo SuzukiTeruo OhneKenichi HoshiEiri SagaeYoshio Hashimoto
    • G02B26/12
    • G02B26/121F16C17/026F16C32/0427
    • An optical deflector of an air bearing type has a fixed shaft; a rotary shaft having a hollow portion fitted onto the fixed shaft; a support device disposed between an end portion of the fixed shaft and an end portion of the hollow portion opposite thereto and supporting the rotary shaft in an axial direction thereof; a radial air bearing formed between an inner circumferential face of the hollow portion and an outer circumferential face of the fixed shaft; a polygon mirror fixed to the rotary shaft; a driving device for rotating the rotary shaft; a device for deflecting light irradiated onto the polygon mirror by rotating the rotary shaft through the driving device; a device for forming a flange for fixing the polygon mirror thereto integrally with the rotary shaft; and a device for setting an upper end portion of the support device on a fixed shaft side thereof to be lower than an upper end face of the polygon mirror. The support device has a first magnet directly attached onto an end face of the fixed shaft, a second magnet opposite to the first magnet and attached to the hollow portion of the rotary shaft, and a third magnet opposite to the second magnet and attached to a casing for covering the polygon mirror. Magnetic poles of the first, second and third magnets are opposite to each other to generate magnetic repulsive force.
    • 空气轴承型光偏转器具有固定轴; 具有安装在所述固定轴上的中空部的旋转轴; 支撑装置,其设置在所述固定轴的端部和与所述固定轴的端部相对的中空部的端部之间,并且沿其轴向方向支撑所述旋转轴; 形成在所述中空部的内周面与所述固定轴的外周面之间的径向空气轴承; 固定在旋转轴上的多面镜; 用于旋转所述旋转轴的驱动装置; 用于通过驱动装置旋转旋转轴来偏转照射到多面镜上的光的装置; 用于形成用于将所述多角镜固定到所述旋转轴上的凸缘的装置; 以及用于将固定轴侧的支撑装置的上端部设定为低于多面镜的上端面的装置。 支撑装置具有直接附接到固定轴的端面上的第一磁体,与第一磁体相对的第二磁体并且附接到旋转轴的中空部分,以及与第二磁体相对的第三磁体,并附接到第一磁体 用于覆盖多面镜的外壳。 第一,第二和第三磁体的磁极彼此相对以产生磁性排斥力。
    • 6. 发明授权
    • Grinding roller, fixing device, and image forming apparatus
    • 研磨辊,定影装置和图像形成装置
    • US09213274B2
    • 2015-12-15
    • US14207831
    • 2014-03-13
    • Kazuhiro KotakaEiri SagaeSatoshi KaiYoshihisa HaraYuusuke Arai
    • Kazuhiro KotakaEiri SagaeSatoshi KaiYoshihisa HaraYuusuke Arai
    • G03G15/00G03G15/20
    • G03G15/2017G03G15/2025G03G2215/2032
    • There is provided a grinding roller for use in a fixing device including a pair of rotary fixing members that rotate while being pressed against each other to form an area of contact, and heat and press a recording medium carrying an unfixed toner image and fed to the area of contact, to thereby fix the unfixed toner image on the recording medium. The grinding roller is configured to grind a surface of a toner image-side rotary member of the pair of rotary fixing members that comes into contact with the unfixed toner image. The grinding roller includes an abrasive grain layer including abrasive grains, forming a surface layer of the grinding roller, and having a surface with irregularities including projections each formed by an aggregate of some of the abrasive grains and larger in size than each of the abrasive grains and recesses formed between the projections.
    • 提供了一种用于定影装置的研磨辊,该定影装置包括一对旋转固定构件,该一对旋转固定构件相对于彼此压靠以形成接触区域而旋转,并且加热并压制携带未定影调色剂图像的记录介质, 从而将未定影的调色剂图像固定在记录介质上。 研磨辊构造成研磨与未定影的调色剂图像接触的一对旋转固定构件的调色剂图像侧旋转构件的表面。 研磨辊包括磨粒,包括磨粒,形成研磨辊的表面层,并且具有包括突起的表面,所述突起各自由一些磨粒的骨料形成,并且尺寸大于每个磨粒 以及形成在突起之间的凹部。