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    • 3. 发明授权
    • Optical scanner, image forming apparatus, and image forming method
    • 光学扫描仪,图像形成装置和图像形成方法
    • US08274538B2
    • 2012-09-25
    • US12360925
    • 2009-01-28
    • Masanori Okada
    • Masanori Okada
    • B41J2/435B41J2/48G01D15/14
    • G03G15/043G03G15/0435G03G15/326G06K15/1214G06K15/1219
    • The emission intensity of a laser beam source, at a time when a laser beam emitted from the laser beam source and scanned by an optical scanning device becomes incident to a laser beam detector provided in a predetermined position on the scanning path of the laser beam in order to hold a position of an electrostatic latent image formed on a photoreceptor constant in the main scanning direction, while at the same time, changing the emission intensity of the laser beam, is set so as to become the consistently same emission intensity regardless of a change in emission intensity at the time of electrostatic latent image formation onto a photoreceptor. This allows the detection timing of a laser beam by a laser beam detector to be kept constant.
    • 激光束源的发射强度在从激光束源发射并被光学扫描装置扫描的激光束入射到设置在激光束的扫描路径上的预定位置的激光束检测器的时刻 为了保持在主扫描方向上形成在感光体上的静电潜像的位置,同时将改变激光束的发射强度的同时设定为一致地发射强度,而不管 在静电潜像形成时对感光体的发射强度的变化。 这允许激光束检测器的激光束的检测定时保持恒定。
    • 8. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US07385619B2
    • 2008-06-10
    • US11070386
    • 2005-03-02
    • Takeshi SowaNozomu InoueYoichi Mitsui
    • Takeshi SowaNozomu InoueYoichi Mitsui
    • B41J2/435G01D15/14
    • G02B27/0933G02B26/125G02B27/0031G02B27/0977
    • An optical scanner emits a light beam in accordance with an image forming signal and deflects the light beam in a first direction. A scanned face is adapted to be scanned by the deflected light beam to form a scanning line while being moved in a second direction perpendicular to the first direction, thereby forming a latent image thereon. A virtual scanned face is defined as a plane including the scanning line and orthogonal to an optical axis of the optical scanner. The shape of a beam spot formed by the light beam incident on the virtual scanned face is approximated to an ellipse. The scanned face is inclined from the virtual scanned face so as to rotate about the scanning line, in accordance with an inclined angle of an major axis of the ellipse from the second direction on the virtual scanned face.
    • 光学扫描器根据图像形成信号发射光束并沿第一方向偏转光束。 扫描面适于被偏转的光束扫描,以在垂直于第一方向的第二方向上移动而形成扫描线,从而在其上形成潜像。 虚拟扫描面被定义为包括扫描线并与光学扫描器的光轴正交的平面。 由入射到虚拟扫描面上的光束形成的束斑的形状近似为椭圆形。 根据虚拟扫描面上的第二方向上的椭圆的长轴的倾斜角度,扫描面从虚拟扫描面倾斜以围绕扫描线旋转。
    • 10. 发明授权
    • Image exposure apparatus
    • 图像曝光装置
    • US07355618B2
    • 2008-04-08
    • US10892128
    • 2004-07-16
    • Mikiya SetoKazuhiro Yoshida
    • Mikiya SetoKazuhiro Yoshida
    • B41J2/47G01D15/14
    • G06K15/1219B41J2/473G06K15/1209G06K15/129G06K15/1295
    • An image exposure apparatus of a different angle incident type is provided having a single optical sensor unit for determining the timing for start point synchronization along the main scanning direction, an output level detecting device determining the output level of each beam of light which can be detected by the optical sensor unit, a first modulating device modulating the output level of each beam of light with a pixel data in the light path for exposure, and a second modulating device modulating the output level of each beam of light to a higher level outside of the light path for exposure than the level determined by said output level detecting device.
    • 提供了具有不同角度入射型的图像曝光装置,其具有用于确定沿着主扫描方向的起点同步的定时的单个光学传感器单元,输出电平检测装置确定可检测的每个光束的输出电平 通过光学传感器单元,利用用于曝光的光路中的像素数据调制每个光束的输出电平的第一调制装置,以及将每个光束的输出电平调制到更高电平以外的第二调制装置 用于曝光的光路比由所述输出电平检测装置确定的电平。