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    • 1. 发明授权
    • Color image forming apparatus with an organic photoconductor
    • 具有有机感光体的彩色图像形成装置
    • US6041204A
    • 2000-03-21
    • US223701
    • 1998-12-30
    • Satoshi HanedaHiroyuki TokimatsuMasahiro OnoderaShuta Hamada
    • Satoshi HanedaHiroyuki TokimatsuMasahiro OnoderaShuta Hamada
    • G03G15/01G03G15/16G03G21/00G03G15/00
    • G03G15/0152G03G15/0168G03G15/169G03G21/0005G03G2215/017G03G2215/0187
    • In a color image forming apparatus provided with a photoreceptor having a rotatable peripheral surface; plural sets of a charging device, an imagewise exposure device, and a developing device, each set of the plural sets is provided separately from other sets around the peripheral surface of the photoreceptor so that plural color component images are formed one after another by the plural sets and are superimposed so as to form a color image on the peripheral surface during a single rotation of the peripheral surface. The developing device has a casing and the imagewise exposure device and the developing device of each set are arranged such that a portion on the peripheral surface locating at an imagewise exposing position moves into the casing of the developing device before the electric potential V1 of the portion is lowered to the half of V1 (V1/2). A pre-transfer exposing device/transfer device and pre-cleaning exposing device/cleaning device all operate such that the potential on the photoreceptor moves into the casings of the transfer device or cleaning device before the potential is lowered to half its value.
    • 在具有可转动周边表面的感光体的彩色图像形成装置中, 多组充电装置,成像曝光装置以及显影装置,与感光体的周面周围的其他组分开设置多个组,使得多个分色图像依次形成为多个 并且叠加在外围表面的单次旋转期间在外围表面上形成彩色图像。 显影装置具有壳体,并且每个组的成像曝光装置和显影装置被布置成使得位于成像曝光位置的外周表面上的部分在该部分的电位V1之前移动到显影装置的壳体中 下降到V1的一半(V1 / 2)。 预转印曝光装置/转印装置和预清洁曝光装置/清洁装置全部操作,使得感光体上的电位在电位降低到其一半值之前移动到转印装置或清洁装置的壳体中。
    • 4. 发明授权
    • Fixing apparatus with a ray transmitting device inside one roller
    • 在一个辊内具有射线发射装置的固定装置
    • US06405013B2
    • 2002-06-11
    • US09777981
    • 2001-02-06
    • Satoshi HanedaMasahiro OnoderaShuta Hamada
    • Satoshi HanedaMasahiro OnoderaShuta Hamada
    • G03G1520
    • G03G15/2053
    • The fixing apparatus fixes a toner image on a transfer material by applying heat and pressure onto the transfer material. It uses a roll-shaped rotary member for applying heat. The roll-shaped rotary member has a ray radiating device for radiating heat rays inside a cylindrical ray-transmitting base member. A cylindrical ray-transmitting elastic/insulating layer is on the base member and a heat ray absorbing layer is provided on the elastic/insulating layer. The difference between the heat ray absorbing ratio (%) per unit thickness (mm) in the base member and that in the ray-transmitting elastic/insulating layer is made not more than 20%. The fluctuations of thickness in the base member and the elastic/insulating layer are equal to, or not more than, 0.1 mm.
    • 定影装置通过向转印材料上施加热和压力来将调色剂图像固定在转印材料上。 它使用辊状旋转构件进行加热。 辊状旋转体具有用于在筒状射线透过性基材内部照射热射线的射线辐射装置。 圆筒形的透光性弹性/绝缘层位于基体上,在弹性/绝缘层上设置有热线吸收层。 基材中的单位厚度(mm)和透射性弹性/绝缘层的热射线吸收率(%)之差不大于20%。 基部件和弹性/绝缘层中的厚度的波动等于或不大于0.1mm。
    • 5. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US5850247A
    • 1998-12-15
    • US798486
    • 1997-02-10
    • Shuta HamadaSatoshi HanedaHisayoshi NagaseHiroyuki TokimatsuMasahiro OnoderaToshihide Miura
    • Shuta HamadaSatoshi HanedaHisayoshi NagaseHiroyuki TokimatsuMasahiro OnoderaToshihide Miura
    • B41J2/45G03G15/32G03G13/04B41J2/447
    • B41J2/451G03G15/04045G03G15/326G03G2215/0174
    • An image forming apparatus having an exposure optical system provided with an exposure light source in which light-emitting elements are arranged on a base plate to be line-shaped and with a lens array of a distributed refractive index type that converges a beam emitted from the exposure light source on the surface of a photoreceptor and conducts imagewise exposure. The apparatus is configured to satisfy the expression: ##EQU1## In the expression, .DELTA.T1 represents a variation width (K) of the temperature in the vicinity of light-emitting elements, R represents a radius of the photoreceptor mentioned above, Ri represents a length (.mu.m) of each member constituting the exposure optical system in the radial direction of the photoreceptor, .alpha. represents a coefficient of linear thermal expansion (.degree.C..sup.-1) of a transparent base that forms the photoreceptor, .alpha.i represents a coefficient of linear thermal expansion (.degree.C..sup.-1) of each member that constitute the exposure optical system, and F represents the depth of focus (.mu.m) of the lens array.
    • 一种具有曝光光学系统的曝光光学系统的图像形成装置,所述曝光光学系统设置有曝光光源,其中发光元件布置在基板上为线状,并且具有分散折射率类型的透镜阵列,其会聚从 曝光光源在感光体表面进行成像曝光。 该装置被配置为满足以下表达式:在表达式中,DELTA T1表示发光元件附近的温度的变化宽度(K),R表示上述感光体的半径,Ri表示 构成曝光光学系统的每个构件在感光体的径向方向上的长度(μm)α表示形成感光体的透明基底的线性热膨胀系数(℃-1),αi表示系数 构成曝光光学系统的每个构件的线性热膨胀(DEGC-1),F表示透镜阵列的焦深(μm)。
    • 6. 发明授权
    • Fixing device for image-forming apparatus
    • 成像装置用固定装置
    • US06947172B2
    • 2005-09-20
    • US09774758
    • 2001-01-31
    • Shuta HamadaSatoshi HanedaMasahiro Onodera
    • Shuta HamadaSatoshi HanedaMasahiro Onodera
    • F16C13/00G03G15/20H05B3/00
    • G03G15/2053
    • A fixing apparatus for fixing a toner image on a transfer sheet, comprises a fixing roller comprising a cylindrical light-transmitting base body capable of transmitting a heat ray; a light-transmitting elastic layer including a first light-transmitting elastic layer provided on an outer periphery of said light-transmitting base body and made of a material having a hardness A1, and a second light-transmitting elastic layer provided on an outer periphery of said first light-transmitting elastic layer and made of a material having a hardness A2; and a heat ray absorbing layer provided on an outer periphery of said light-transmitting elastic layer and to absorb said heat ray.
    • 用于将调色剂图像定影在转印片上的定影装置包括定影辊,该定影辊包括能够透射热线的圆柱形透光基体; 透光弹性层,其包括设置在所述透光基体的外周上并由具有硬度A 1的材料制成的第一透光弹性层和设置在外周上的第二透光性弹性层 的所述第一透光弹性层,并由具有硬度A 2的材料制成; 以及设置在所述透光弹性层的外周上并吸收所述热射线的热射线吸收层。
    • 9. 发明授权
    • Color image forming apparatus
    • 彩色图像形成装置
    • US5758243A
    • 1998-05-26
    • US798485
    • 1997-02-10
    • Satoshi HanedaHisayoshi NagaseHiroyuki TokimatsuMasahiro OnoderaShuta HamadaToshihide Miura
    • Satoshi HanedaHisayoshi NagaseHiroyuki TokimatsuMasahiro OnoderaShuta HamadaToshihide Miura
    • G03G15/02G03G15/00G03G15/01G03G15/08G03G15/16G03G21/00G03G21/16
    • G03G15/0152G03G15/0163G03G2215/0174G03G2215/0497
    • An image forming apparatus includes a rotary image forming body; a charger provided around the image forming body for charging the image forming body; a plurality of imagewise exposure devices for imagewise exposing the charged image forming body to form respective latent images thereon; and a plurality of developing devices for developing the respective latent images formed on the image forming body to form respective toner images. A plurality of different color toner images thus formed by the respective chargers, the respective imagewise exposure devices and the respective developing devices are superimposed on the image forming body, thereby a color toner image is formed. The image forming apparatus further includes a transfer device for transferring the color toner image on the image forming body onto a transfer member; a cleaning device for removing a residual toner on the image forming body; a support member for supporting the plurality of exposure devices. The support member and plurality of exposure devices supported on the support member are provided inside the image forming body kept in a static status. The image forming apparatus is further provided with a gap keeping member for holding the chargers, the developing devices, the transfer device or the cleaning device with positional reference to the support member so as to keep a gap with the image forming body constant.
    • 图像形成装置包括旋转图像形成体; 设置在图像形成体周围的用于对图像形成体进行充电的充电器; 多个图像曝光装置,用于对所充电的图像形成体进行成像曝光以在其上形成各自的潜像; 以及用于显影形成在图像形成主体上的各个潜像以形成相应调色剂图像的多个显影装置。 由各个充电器,各个成像曝光装置和各个显影装置形成的多个不同颜色的调色剂图像叠加在图像形成体上,由此形成彩色调色剂图像。 图像形成装置还包括用于将图像形成体上的彩色调色剂图像转印到转印部件上的转印装置; 用于去除图像形成体上的残留调色剂的清洁装置; 用于支撑多个曝光装置的支撑构件。 支撑构件和支撑在支撑构件上的多个曝光装置设置在保持静止状态的图像形成体内。 图像形成装置还设置有用于保持充电器,显影装置,转印装置或清洁装置的间隙保持构件,其位置参考支撑构件,以保持与图像形成体的间隙恒定。