公开(公告)号：US5983055A

公开(公告)日：1999-11-09

申请号：US818675

申请日：1997-03-14

申请人： Takahiro Bito ,  Syouichi Fujita ,  Kouichi Takenouchi ,  Teruhiko Noguchi ,  Yukihisa Imaue ,  Tatsuya Itou ,  Ken Yamagishi ,  Keizo Kitamura ,  Tadayuki Sawai

发明人： Takahiro Bito ,  Syouichi Fujita ,  Kouichi Takenouchi ,  Teruhiko Noguchi ,  Yukihisa Imaue ,  Tatsuya Itou ,  Ken Yamagishi ,  Keizo Kitamura ,  Tadayuki Sawai

IPC分类号： G03G15/00

CPC分类号： G03G15/757 ,  G03G15/751

摘要： A photosensitive element is produced with a minimum amount of a conductive synthetic resin material. A draft for injection molding is formed in the inner circumferential surface as a supporting body, and a driven member provided with a gear is fixed to the end of the supporting body with a smaller inner diameter, that is, the thicker end. A driven portion in which a plurality of projections and depressions are formed alternately to be adjacent to each other in the circumferential direction is arranged on an axial end of a cylindrical supporting body made of a conductive synthetic resin, including a photosensitive layer on the outer circumferential surface. By a joint member removably engaged with the driven portion, the supporting body is rotated around the axis. In one arrangement, only the end of the supporting body is solid. In another arrangement, the supporting body is solid in the almost entire length in the axial direction.

摘要翻译： 用最少量的导电合成树脂材料制造感光元件。 在作为支撑体的内周面上形成注射成型用的通气口，具有齿轮的从动构件以较小的内径固定在支撑体的端部，即较厚的端部。 在由导电性合成树脂制成的圆筒形支撑体的轴向端部上设置有沿周向交替地彼此相邻地形成有多个凹凸的从动部，该导电性合成树脂在外周面具有感光层 表面。 通过可拆卸地与被驱动部分接合的接合构件，支撑体围绕轴线旋转。 在一种布置中，只有支撑体的端部是固体。 在另一种布置中，支撑体在轴向方向上几乎整个长度上是固体的。

公开(公告)号：USD665443S1

公开(公告)日：2012-08-14

申请号：US29412856

申请日：2012-02-08

申请人： Keizo Kitamura ,  Naoya Aoyama

设计人： Keizo Kitamura ,  Naoya Aoyama

公开(公告)号：US06212339B1

公开(公告)日：2001-04-03

申请号：US09528300

申请日：2000-03-17

申请人： Katsushi Inoue ,  Mitsuhiro Hasegawa ,  Keizo Kitamura ,  Tomoko Mamemoto

发明人： Katsushi Inoue ,  Mitsuhiro Hasegawa ,  Keizo Kitamura ,  Tomoko Mamemoto

IPC分类号： G21

CPC分类号： G03G21/08

摘要： An image forming apparatus includes (i) a photosensitive drum for holding an electrostatic latent image on its surface, the photosensitive drum being driven to rotate by a motor, (ii) charging means for charging the surface of the photosensitive drum so that the surface has a predetermined polarity and a predetermined potential, (iii) exposing means for forming an electrostatic latent image by exposing the charged surface of the photosensitive drum, and (iv) developing means for developing the electrostatic latent image, and is arranged so that after stop of the motor due to occurrence of a trouble, during an inertial rotation time in which the photosensitive drum rotates due to an inertial force, the exposing means executes discharge exposure with respect to a charge remaining region on the surface of the photosensitive drum.

摘要翻译： 图像形成装置包括：（i）用于在其表面上保持静电潜像的感光鼓，感光鼓由电动机驱动旋转;（ii）充电装置，用于对感光鼓的表面充电，使得表面具有 预定极性和预定电位，（iii）曝光装置，用于通过使感光鼓的带电表面曝光来形成静电潜像;以及（iv）用于显影静电潜像的显影装置， 电动机由于发生故障，在感光鼓由于惯性力旋转的惯性旋转时间期间，曝光装置相对于感光鼓表面上的电荷剩余区域执行放电曝光。

公开(公告)号：US06317576B1

公开(公告)日：2001-11-13

申请号：US09488645

申请日：2000-01-21

申请人： Toshihisa Ishida ,  Hitoshi Nagahama ,  Katsuaki Sumida ,  Takahiro Bito ,  Keizo Kitamura

发明人： Toshihisa Ishida ,  Hitoshi Nagahama ,  Katsuaki Sumida ,  Takahiro Bito ,  Keizo Kitamura

IPC分类号： G03G1509

CPC分类号： G03G15/09

摘要： A magnetic member is arranged at a position on the downstream side with respect to the rotational direction of a developing sleeve, outside the developer conveyance path where the magnetism from the magnetic member has no influence on the magnetic field of the developing magnetic pole. When the magnetic member is arranged with its N pole facing the developing sleeve, the magnetic attractive force from the magnetic member weakens the developer's attraction to the peripheral surface of the developing sleeve. When the magnetic member is arranged with its S pole facing the developing sleeve, the developer being conveyed along the developer conveyance path is magnetized in such a direction as to repel the peripheral surface of the developing sleeve. In either case, the adhering state of the developer to the peripheral surface of the developing sleeve having passed through the developing position is unstable, so that the developer having adhered to the developing sleeve will easily drop off from the developing sleeve after passage of the developing position.

摘要翻译： 磁性构件相对于显影套筒的旋转方向在下游侧的位置处布置在显影剂输送路径的外侧，其中磁性构件的磁性对显影磁极的磁场没有影响。 当磁性构件以其N极面向显影套筒布置时，来自磁性构件的磁性吸引力削弱了显影剂对显影套筒周边表面的吸引力。 当磁性构件以其S极面向显影套筒布置时，沿着显影剂输送路径输送的显影剂沿着排斥显影套筒的周面的方向被磁化。 在任一种情况下，显影剂到已经通过显影位置的显影套筒的周面的粘附状态是不稳定的，使得附着在显影套筒上的显影剂在显影剂通过后容易从显影套筒脱落 位置。