OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS, AND OPTICAL SCANNING METHOD
    1.
    发明申请
    OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS, AND OPTICAL SCANNING METHOD 有权
    光学扫描装置,图像形成装置和光学扫描方法

    公开(公告)号:US20150054902A1

    公开(公告)日:2015-02-26

    申请号:US14334995

    申请日:2014-07-18

    IPC分类号: G03G15/043

    CPC分类号: G03G15/043 G03G15/04072

    摘要: An optical scanning device includes a light source emitting light to form an image by optical scanning; and a control section generating a control signal, which is for turning on and off the light source, based on an image signal. Further, the control section generates a pulse signal having a redetermined time width when the image signal indicates that the light source is to be turned off.

    摘要翻译: 光学扫描装置包括通过光学扫描发光以形成图像的光源; 以及控制部分,其基于图像信号产生用于打开和关闭光源的控制信号。 此外,当图像信号指示要关闭光源时,控制部分产生具有重新确定的时间宽度的脉冲信号。

    SCANNER, IMAGE FORMING APPARATUS, AND SCANNING METHOD
    2.
    发明申请
    SCANNER, IMAGE FORMING APPARATUS, AND SCANNING METHOD 审中-公开
    扫描仪,图像形成装置和扫描方法

    公开(公告)号:US20160275381A1

    公开(公告)日:2016-09-22

    申请号:US15062532

    申请日:2016-03-07

    IPC分类号: G06K15/12 H04N1/40 H04N1/10

    摘要: A scanner includes: an acquiring unit that acquires determination result information based on a determination result of whether a target dot of a target pixel of a plurality of pixels constituting image data is a first dot or a second dot; a light source control unit that, if the target dot is the first dot, causes a light source to emit a light beam during a corrected lighting time with a light source characteristic time based on a characteristic of the light source being added to a predetermined lighting time that is preliminarily determined with respect to the target dot, and if the target dot is the second dot, causes the light source to emit a light beam during the predetermined lighting time; and a deflecting unit that deflects the light beam in the main scanning direction.

    摘要翻译: 扫描器包括:获取单元,其基于构成图像数据的多个像素的目标像素的目标点是第一点还是第二点的确定结果来获取确定结果信息; 光源控制单元,如果目标点是第一点,则在校正的点亮时间期间,光源在基于添加到预定照明的光源的特性的光源特征时间发出光束 相对于目标点预先确定的时间,并且如果目标点是第二点,则在预定的发光时间期间使光源发射光束; 以及使光束在主扫描方向上偏转的偏转单元。

    IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

    公开(公告)号:US20180059569A1

    公开(公告)日:2018-03-01

    申请号:US15656027

    申请日:2017-07-21

    IPC分类号: B41J2/385

    CPC分类号: G03G15/043 G03G15/5041

    摘要: An image forming apparatus includes a photoconductor, a light source, an optical scanning device, an image bearer, an image density sensor, an image processing circuit, and a light source driver. The plurality of images are formed with a plurality of light intensities and a plurality of image area rates on the image bearer. The image density sensor detects a plurality of image densities of the plurality of images at a plurality of positions in a main scanning direction. The image processing circuit determines a light intensity correction value to correct an image density of a target image in the main scanning direction based on the plurality of light intensities, image area rates, image densities, and positions, and the image area rate of the target image, and outputs a control signal to adjust a light intensity. The light source driver adjusts the light intensity based on the control signal.