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    • 3. 发明授权
    • Electrophotographic image transfer member, electrophotographic image
transfer device and electrophotographic recording apparatus
    • 电子照相图像转印构件,电子照相图像转印装置和电子照相记录装置
    • US4998143A
    • 1991-03-05
    • US407870
    • 1989-09-15
    • Takao KumasakaYuzuru SimazakiAkira TerakadoYasuro Hori
    • Takao KumasakaYuzuru SimazakiAkira TerakadoYasuro Hori
    • G03G15/16
    • G03G15/167G03G15/168G03G15/1685G03G2215/1652
    • An electrophotographic image transfer member of bias-roller transfer type is capable of pressing a recording medium into contact with a toner image. The image transfer member has a rotatable supporting member, an elastic member provided around the supporting member, and a conductive resin layer formed on the surface of the elastic member. An electrical path is formed to enable supply of a bias voltage to the conductive resin layer. An image transfer device has the image transfer member and a cleaner capable of removing toner from the image transfer member upon frictional contact therewith. An electrophotographic apparatus has an image transfer member for bringing the recording medium into pressure contact with the toner image and for applying the bias voltage, and a mechanism for bringing the image transfer member towards and away from the photosensitive member in response to a signal indicative of execution of one of several basic steps of the electrophotographic process.
    • 偏置辊转印型的电子照相图像转印构件能够使记录介质与调色剂图像接触。 图像转印部件具有可旋转的支撑部件,设置在支撑部件周围的弹性部件和形成在弹性部件的表面上的导电性树脂层。 形成电路以能够向导电树脂层提供偏置电压。 图像转印装置具有图像转印构件和能够从图像转印构件摩擦接触时去除调色剂的清洁剂。 电子照相设备具有用于使记录介质与调色剂图像压力接触并用于施加偏压的图像转印部件,以及用于响应于指示图像转印部件的信号而使图像转印部件朝向和远离光敏部件的机构 执行电子照相方法的几个基本步骤之一。
    • 5. 发明授权
    • Optical scanning apparatus and system
    • 光学扫描装置及系统
    • US5255112A
    • 1993-10-19
    • US810339
    • 1991-12-19
    • Yasuro HoriSeiji MaruoYasuaki Suzuki
    • Yasuro HoriSeiji MaruoYasuaki Suzuki
    • G02B26/12G02B26/08
    • G02B26/125
    • A small and inexpensive optical scanning apparatus is attained by an optical block 1 disposed between a rotating mirror 2 and a photosensitive body 3 and having specular surfaces formed at part of inner side of surface so that light from the rotating mirror 2 is reflected within the optical block 1 plural times back and forth and reaches the photosensitive body 3 in order to correct the curvature of field, the distortion aberration and the inclination of surface in an optical scanning system. The length of the optical path within the optical block including reflection is set to 60% or more of the whole length of optical path from the rotating mirror 2 to the photosensitive body 3. The surface of the optical block 1 on the side of the photosensitive body is formed into a curved surface to constitute a concave mirror. The rotating mirror and the photosensitive body are arranged in optically conjugate relation in sub-scanning direction by the focal distance.
    • 通过设置在旋转镜2和感光体3之间并且具有形成在表面的内侧的一部分的镜面的光学块1来获得小而廉价的光学扫描装置,使得来自旋转镜2的光在光学 块1多次来回到达感光体3,以便校正光学扫描系统中的曲率,畸变像差和表面的倾斜度。 包括反射的光学块内的光路的长度被设定为从旋转镜2到感光体3的光路的整个长度的60%以上。光学块1的光敏面一侧的表面 身体形成为曲面以构成凹面镜。 旋转镜和感光体通过焦距在副扫描方向上以光学共轭关系布置。