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    • 1. 发明授权
    • Cylindrical rotating member having a support mechanism exhibiting little
unevenness in rotation, and image forming apparatus
    • 具有显示旋转不均匀的支撑机构的圆柱形旋转构件和图像形成装置
    • US06011942A
    • 2000-01-04
    • US84947
    • 1998-05-28
    • Hajime TaniguchiTooru WatanabeIkuro ChimotoAkihiro NakamuraMasato Togami
    • Hajime TaniguchiTooru WatanabeIkuro ChimotoAkihiro NakamuraMasato Togami
    • G03G21/00F16C23/02F16C23/04G03G15/00
    • G03G15/757
    • It is desirable if the lengthwise center axis of a cylindrical rotating member such as a photoreceptor drum is aligned exactly with the center axes of the support shafts. However, as it is impossible to eliminate manufacturing errors in components, it is unavoidable for there to be a slight angle of intersection between the center axis of the cylindrical rotating member and the center axes of the support shaft. Consequently, the object of the present invention is to provide a support mechanism for the cylindrical rotating member whereby the cylindrical rotating member exhibits little unevenness of rotation. When lengthwise axis of the cylindrical rotating member forms angle of intersection .alpha. with lengthwise axis of shaft, this angle .alpha. is absorbed by the slight space between shaft and pierced hole of a rotation transmission member, as well as by the gap between the rotation transmission member and bearing of the cylindrical rotating member, so that the center axis of the cylindrical rotating member is fixed in a set position, and the outer circumference of the cylindrical rotating member moves in a predetermined perfectly circular path.
    • 如果诸如感光鼓的圆柱形旋转构件的纵向中心轴与支撑轴的中心轴准确对准,则是理想的。 然而,由于不可能消除部件中的制造误差,因此在圆筒状的旋转部件的中心轴与支承轴的中心轴之间存在微小的交叉点是不可避免的。 因此,本发明的目的是提供一种用于圆柱形旋转部件的支撑机构,由此圆柱形旋转部件显示出很小的旋转不均匀性。 当圆柱形旋转构件的纵向轴线与轴的纵向轴线形成交点α时,该角度α被旋转传递构件的轴和穿孔之间的微小空间以及旋转传递构件之间的间隙吸收 和圆柱形旋转构件的轴承,使得圆柱形旋转构件的中心轴线固定在设定位置,并且圆筒形旋转构件的外圆周以预定的完全圆形路径移动。
    • 3. 发明授权
    • Laser scanning optical apparatus having exclusive optical elements at varying distances from receiving surfaces
    • 激光扫描光学装置具有距离接收表面不同距离的专用光学元件
    • US07515168B2
    • 2009-04-07
    • US11519769
    • 2006-09-13
    • Kenji TakeshitaAtsushi OhataHajime Taniguchi
    • Kenji TakeshitaAtsushi OhataHajime Taniguchi
    • B41J15/14B41J27/00
    • B41J2/473G02B26/123
    • A laser scanning optical apparatus wherein a plural number of beams are deflected by one polygon mirror and are scanned on respective corresponding photosensitive drums via a scanning optical system. The scanning optical system has a first scanning lens which transmits all the beams, exclusive second scanning lenses which transmit exclusively the respective beams and plane mirrors for reflecting the beams. The second scanning lenses are located such that at least one of the second scanning lenses is at a distance from the corresponding photosensitive drum on which the beam transmitted by the at least one of the second scanning lenses is scanned and that another second scanning lens is at another distance from the corresponding photosensitive drum on which the beams transmitted by the another second scanning lens is scanned. For example, at least one of the exclusive optical elements is at a distance from the corresponding photosensitive drum, and the other exclusive optical elements are at another distance from the respective corresponding photosensitive drums. Alternatively, the exclusive optical elements are at mutually different distances from the respective corresponding photosensitive drums.
    • 一种激光扫描光学装置,其中多个光束被一个多面镜偏转并且经由扫描光学系统在相应的对应的感光鼓上进行扫描。 扫描光学系统具有透射所有光束的第一扫描透镜,专门发送各个光束的专用第二扫描透镜和用于反射光束的平面镜。 第二扫描透镜被定位成使得至少一个第二扫描透镜距离相应的感光鼓一个距离,在该感光鼓上扫描由至少一个第二扫描透镜发射的光束,并且另一个第二扫描透镜处于 距离相应的感光鼓的另一个距离,其上扫描由另一个第二扫描透镜传输的光束。 例如,至少一个专用光学元件距离对应的感光鼓有一定距离,而其他专用光学元件距离各个相应的感光鼓相距一定距离。 或者,专用光学元件与相应的相应的感光鼓相距不同的距离。
    • 9. 发明授权
    • Optical scanning device and image forming apparatus
    • 光学扫描装置和图像形成装置
    • US09288366B2
    • 2016-03-15
    • US13224067
    • 2011-09-01
    • Hajime TaniguchiHidenari TachibeTakafumi YuasaYoshitaka Otani
    • Hajime TaniguchiHidenari TachibeTakafumi YuasaYoshitaka Otani
    • B41J2/435B41J15/14G02B26/08H04N1/50
    • H04N1/506
    • An optical scanning device comprises: photoreceptors corresponding one-to-one to solid colors; high-resolution light sources each emitting a set of beams irradiating the corresponding photoreceptor with a predetermined distance therebetween along a sub-scanning direction; a deflection unit; a first optical system directing the sets of beams from the high-resolution light sources to the deflection unit; a low-resolution light source emitting a set of beams irradiating a predetermined photoreceptor with a distance therebetween larger than the predetermined distance along the sub-scanning direction; and a second optical system directing all of the sets of beams to the corresponding photoreceptor. The low-resolution light source and first optical system are positioned so as not to physically interfere with the high-resolution light sources and first optical system, and so as to allow the set of beams from the low-resolution light source to scan an image forming area on the predetermined photoreceptor along a main-scanning direction.
    • 光学扫描装置包括:一对一对应于纯色的光感受器; 高分辨率光源各自发射一组沿着副扫描方向以预定距离照射相应感光体的光束; 偏转单元; 第一光学系统,将所述组的光束从所述高分辨率光源引导到所述偏转单元; 低分辨率光源,发射一束照射预定感光体的光束,其间距离大于沿着副扫描方向的预定距离; 以及将所有组的光束引导到相应感光体的第二光学系统。 低分辨率光源和第一光学系统被定位成不会物理地干扰高分辨率光源和第一光学系统,并且允许来自低分辨率光源的光束组扫描图像 沿着主扫描方向在预定感光体上形成区域。
    • 10. 发明申请
    • OPTICAL SCANNING DEVICE AND IMAGE FORMATION APPARATUS
    • 光学扫描装置和图像形成装置
    • US20120050835A1
    • 2012-03-01
    • US13224042
    • 2011-09-01
    • Yoshitaka OtaniHajime TaniguchiHidenari TachibeTakafumi Yuasa
    • Yoshitaka OtaniHajime TaniguchiHidenari TachibeTakafumi Yuasa
    • G02B26/10
    • G02B26/124G02B7/008G02B7/028
    • An optical scanning device in which optical beams from a light-emitting element are passed through a collimator lens and are deflected by a deflector and which scans over an image carrier by using the deflected optical beams, comprising: a device housing; and a holder supported on a base of the housing so as to be rotatable about an optical axis of the collimator lens, and penetrating through a through-hole in a side wall of the housing along the optical axis without contacting the side wall, wherein the holder includes first and second holder parts, the first holder part located inside the housing, and the second holder part located outside the housing, the collimator lens is held by the first holder part, the light-emitting element is held by the second holder part, and the optical beams pass through the through-hole in the side wall and reach the collimator lens.
    • 一种光学扫描装置,其中来自发光元件的光束通过准直透镜并被偏转器偏转,并且通过使用偏转的光束在图像载体上扫描,包括:器件壳体; 以及保持件,其支撑在所述壳体的基部上,以便能够围绕所述准直透镜的光轴旋转,并且沿着所述光轴穿过所述壳体的侧壁中的通孔而不与所述侧壁接触,其中, 保持器包括第一和第二保持器部分,位于壳体内部的第一保持器部分和位于壳体外部的第二保持器部分,准直透镜由第一保持器部分保持,发光元件由第二保持器部分 并且光束通过侧壁中的通孔并到达准直透镜。