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    • 50. 发明授权
    • Optical scanner and image forming apparatus
    • 光学扫描仪和图像形成装置
    • US07515170B2
    • 2009-04-07
    • US11512122
    • 2006-08-30
    • Atsufumi OmoriMasaaki IshidaYasuhiro NiheiDan Ozasa
    • Atsufumi OmoriMasaaki IshidaYasuhiro NiheiDan Ozasa
    • B41J2/435B41J2/47
    • H04N1/40031H04N1/191H04N2201/04758
    • An optical scanner includes a light source unit configured to emit light; an optical system configured to cause the light emitted from the light source unit to scan an object so as to form an image on the object; and a control unit configured to control the light source unit. The light source unit includes a plurality of light emitting units arranged in a sub scanning direction, and the control unit controls the light source unit to emit light at different positions on the object by using either n (n: positive integer) light emitting units or n+1 light emitting units selected from among the plurality of light emitting units, according to a positional shift amount of the image in the sub scanning direction.
    • 一种光学扫描器,包括配置成发光的光源单元; 光学系统,被配置为使从所述光源单元发射的光扫描物体以在所述物体上形成图像; 以及控制单元,被配置为控制所述光源单元。 光源单元包括沿副扫描方向布置的多个发光单元,并且控制单元通过使用n(n:正整数)发光单元或者n(n:正整数)发光单元来控制光源单元在物体上的不同位置发光 根据副扫描方向上的图像的位置偏移量,从多个发光单元中选择n + 1个发光单元。