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    • 4. 发明申请
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • US20120155899A1
    • 2012-06-21
    • US13327208
    • 2011-12-15
    • Naoto WATANABETetsuya MUTO
    • Naoto WATANABETetsuya MUTO
    • G03G15/00
    • G03G15/5058G03G2215/0129G03G2215/0164
    • An image forming apparatus includes: a charging unit that uniformly charges a surface of a latent image carrier; a latent-image forming unit; a developing unit that performs development by causing toner to electrostatically adhere on the surface of the carrier; a transfer unit that transfers a toner image onto a recording medium; and an image-density adjusting unit that causes to form a multi-gradation patch pattern on the surface of the carrier, that causes to detect potentials of latent image patches in the multi-gradation patch pattern, that causes to detect a toner adhesion amount on each toner patch, and that performs control of an image density. One of part and all of the low-density latent image patches is a dot-dispersed latent image patch in which the arrangement of unit dot latent images in the basic dot matrix is determined so that a minimum center-to-center distance having a smallest value is maximized.
    • 一种图像形成装置包括:对潜像载体的表面均匀充电的充电单元; 潜像形成单元; 显影单元,其通过使调色剂静电粘附在载体的表面上来进行显影; 转印单元,其将调色剂图像转印到记录介质上; 以及图像浓度调整单元,其导致在载体的表面上形成多灰度贴片图案,其导致检测多层次贴片图案中的潜像斑块的电位,导致检测调色剂附着量 每个调色剂贴片,并且执行图像浓度的控制。 低密度潜像贴片的一部分和全部是点分散潜像贴片,其中确定基本点阵中的单位点潜像的布置,使得具有最小的中心至中心的最小距离 价值最大化。
    • 8. 发明申请
    • OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS
    • 光学扫描装置和图像形成装置
    • US20130070323A1
    • 2013-03-21
    • US13608216
    • 2012-09-10
    • Toshiaki TOKITANobuaki KUBONaoto WATANABEKohji SAKAI
    • Toshiaki TOKITANobuaki KUBONaoto WATANABEKohji SAKAI
    • G02B26/10
    • B41J2/473G02B3/0075G02B5/3058G02B26/123G03G15/0435
    • An optical scanning device separately scanning plural scan target surfaces in a first direction with light includes: a light source unit configured to emit first and second light beams mutually different in polarization state; an optical deflector configured to rotate around an axis parallel to a second direction perpendicular to the first direction, and deflect the emitted light beams; an imaging optical element provided on respective optical paths of the deflected light beams; a polarization adjustment element provided on the optical paths of the light beams transmitted through the imaging optical element, and configured to correct respective changes in polarization state of the light beams occurring during the transmission of the light beams through the imaging optical element; and a polarization separation element provided on the optical paths of the light beams emitted from the polarization adjustment element, and configured to separate the light beams from each other.
    • 利用光分别在第一方向上扫描多个扫描目标表面的光学扫描装置包括:光源单元,被配置为发射极化状态彼此不同的第一和第二光束; 光学偏转器,被配置为围绕平行于与第一方向垂直的第二方向的轴线旋转,并偏转发射的光束; 设置在偏转光束的相应光路上的成像光学元件; 偏振调节元件,设置在透过成像光学元件的光束的光路上,并且被配置为校正在通过成像光学元件的光束透射期间发生的光束的偏振状态的变化; 以及偏振分离元件,设置在从偏振调节元件发射的光束的光路上,并且被配置为将光束彼此分离。