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    Contact-type charging device having a plurality of projections over the surface of the charging device
    1.
    发明授权
    Contact-type charging device having a plurality of projections over the surface of the charging device 失效
    接触式充电装置在充电装置的表面上具有多个突起

    公开(公告)号：US06473582B2

    公开(公告)日：2002-10-29

    申请号：US09152297

    申请日：1998-09-14

    申请人： Harumi Ishiyama ,  Yasunori Chigono ,  Jun Hirabayashi

    发明人： Harumi Ishiyama ,  Yasunori Chigono ,  Jun Hirabayashi

    IPC分类号： G06G1502

    CPC分类号： G03G15/0233 ,  G03G2221/0005

    摘要： A charging apparatus includes a charging member for being supplied with a voltage to charge a member to be charged, the charging member including an elastic member for forming a nip with the member to be charged, and said elastic member having a surface provided with a plurality of projections; wherein a speed A of a surface of said charging member (mm/sec) and a speed B of a surface of the member to be charged (mm/sec) satisfy: when B−A>0, said projections are inclined toward upstream with respect to a movement direction of the surface of the member to be charged in said nip, and when B−A

    摘要翻译： 充电装置包括充电构件，用于向被充电构件充电的电压被充电，充电构件包括用于与要充电的构件形成压区的弹性构件，并且所述弹性构件具有设置有多个 的预测 其特征在于，所述充电部件的表面的速度A（mm / sec）和被充电部件的表面的速度B满足：当BA> 0时，所述突起相对于 要被充电的部件的表面的移动方向，当BA <0时，突起相对于要在所述辊隙中被填充的部件的表面的移动方向向下游倾斜。

    Image forming apparatus for making recovery and restoration of toners by electrical conductive member
    2.
    发明授权
    Image forming apparatus for making recovery and restoration of toners by electrical conductive member 失效
    用于通过导电构件恢复和恢复调色剂的图像形成装置

    公开(公告)号：US06442362B2

    公开(公告)日：2002-08-27

    申请号：US09749934

    申请日：2000-12-29

    申请人： Jun Hirabayashi ,  Harumi Ishiyama ,  Yasunori Chigono

    发明人： Jun Hirabayashi ,  Harumi Ishiyama ,  Yasunori Chigono

    IPC分类号： G03G1500

    CPC分类号： G03G15/0225 ,  G03G21/0005 ,  G03G2215/021 ,  G03G2221/0005

    摘要： An image forming apparatus includes an image bearing member for bearing an electrostatic image. A developing device develops the electrostatic image on the image bearing member by toners charged with a predetermined polarity. A transfer device transfers a toner image on the image bearing member to a transferring material. An electrifying device inject-charges the image bearing member having transfer residual toners. An electrical conductive member provided and spaced apart from the image bearing member in a moving direction of the image bearing member downstream farther than the transfer means and upstream farther than the electrifying device. An electrical field forming device for forming an alternative electrical field between the electrical conductive member and the image bearing member.

    摘要翻译： 图像形成装置包括用于承载静电图像的图像承载部件。 显影装置通过以预定极性充电的调色剂在图像承载部件上显影静电图像。 转印装置将图像承载部件上的调色剂图像转印到转印材料上。 充电装置对具有转印残留调色剂的图像承载部件进行注射。 一种导电构件，其在图像承载构件的移动方向上与图像承载构件设置并间隔开，该移动方向比传送装置下游并且比通电装置更远。 一种用于在导电构件和图像承载构件之间形成替代电场的电场形成装置。

    Image forming apparatus supplying charging accelerating particles to image bearing body in non-image forming
    3.
    发明授权
    Image forming apparatus supplying charging accelerating particles to image bearing body in non-image forming 有权
    图像形成装置，在非图像形成中向图像承载体供给加速粒子

    公开(公告)号：US06226480B1

    公开(公告)日：2001-05-01

    申请号：US09387568

    申请日：1999-09-01

    申请人： Jun Hirabayashi ,  Harumi Ishiyama ,  Yasunori Chigono

    发明人： Jun Hirabayashi ,  Harumi Ishiyama ,  Yasunori Chigono

    IPC分类号： G03G1500

    CPC分类号： G03G15/0216

    摘要： An image forming apparatus for injection charging which uses charging accelerating particles in a charging nip portion to rotate an image bearing body and a charging roller at different velocities and applies a bias in image forming which is different from a bias applied in non-image forming to feed substantially only the charging accelerating particles in non-image forming, thereby it is possible to enhance a charging property and to provide a favorable image.

    摘要翻译： 一种用于注射充电的图像形成装置，其使用充电夹持部分中的充电加速粒子来以不同的速度旋转图像承载体和充电辊，并且施加与在非图像形成中施加的偏差不同的图像形成中的偏压 基本上只进行非图像形成中的充电加速粒子的供给，由此能够提高充电特性并提供良好的图像。

    Charging apparatus, process cartridge and image forming apparatus
    4.
    发明授权
    Charging apparatus, process cartridge and image forming apparatus 失效
    充电设备，处理盒和成像设备

    公开(公告)号：US06788911B2

    公开(公告)日：2004-09-07

    申请号：US10140982

    申请日：2002-05-09

    申请人： Harumi Ishiyama ,  Yasunori Chigono ,  Jun Hirabayashi

    发明人： Harumi Ishiyama ,  Yasunori Chigono ,  Jun Hirabayashi

    IPC分类号： G03G1502

    CPC分类号： G03G15/0216

    摘要： A charging device includes a charging member for electrically charging a member to be charged which is adapted to form a nip with a member to be charged which has a surface layer having a volume resistivity of 1×109-1×1014 &OHgr;cm, said charging member having an elastic member and movable with a peripheral speed difference relative to the member to be charged; and electroconductive particles carried on said charging member to the nip, wherein a peripheral speed Vd (mm/sec) of said member to be charged, a peripheral speed Vc (mm/sec) of said charging member, a width N (mm) of the nip measured in a moving direction of said charging member, and a coverage ratio Rc of said electroconductive particles on said charging member, satisfy: N·Rc·|Vc−Vd|/Vd≧1.

    摘要翻译： 充电装置包括充电构件，用于对被充电构件进行充电，该充电构件适于与具有体积电阻率为1×10 9 -1×10 4Ω·cm的表面层的待充电构件形成压区，所述充电构件 充电构件具有弹性构件并且可相对于待充电构件以圆周速度差移动; 以及在所述充电构件上承载到所述辊隙的导电颗粒，其中所述被充电构件的圆周速度Vd（mm / sec），所述充电构件的圆周速度Vc（mm / sec），宽度N（mm） 在所述充电构件的移动方向上测量的压区以及所述充电构件上的所述导电颗粒的覆盖率Rc满足：

    Charging device, process cartridge and image forming apparatus
    5.
    发明授权
    Charging device, process cartridge and image forming apparatus 失效
    充电装置，处理盒和成像装置

    公开(公告)号：US06553199B2

    公开(公告)日：2003-04-22

    申请号：US09981810

    申请日：2001-10-19

    申请人： Harumi Ishiyama ,  Yasunori Chigono ,  Jun Hirabayashi

    发明人： Harumi Ishiyama ,  Yasunori Chigono ,  Jun Hirabayashi

    IPC分类号： G03G1500

    CPC分类号： G03G15/0233

    摘要： A charging device, suitable for use in an electrophotographic image forming apparatus, is formed of an object to be charged, and a roller-shaped charging member disposed in contact with the object via electroconductive particles and supplied with a voltage to charge the objects. The charging member has a surface layer including an elastic foam and is moved with a surface speed difference relative to the object. The charging member has surface cavities having an average diameter of 5 to 150 &mgr;m and occupying an area percentage of 50 to 90%. An image forming apparatus and a process cartridge therefor including the charging device are also provided.

    摘要翻译： 适用于电子照相图像形成装置的充电装置由被充电物体形成，以及辊状充电部件，其通过导电颗粒与物体接触并提供电压以对物体充电。 充电构件具有包括弹性泡沫的表面层，并且相对于物体以表面速度差移动。 充电构件具有平均直径为5至150μm并具有50至90％的面积百分比的表面空腔。 还提供了一种包括充电装置的图像形成装置及其处理盒。

    Charging device and image forming apparatus
    7.
    发明授权
    Charging device and image forming apparatus 有权
    充电装置及成像装置

    公开(公告)号：US06233419B1

    公开(公告)日：2001-05-15

    申请号：US09151297

    申请日：1998-09-11

    申请人： Yasunori Chigono ,  Harumi Ishiyama ,  Jun Hirabayashi

    发明人： Yasunori Chigono ,  Harumi Ishiyama ,  Jun Hirabayashi

    IPC分类号： G03G1502

    CPC分类号： G03G15/0241

    摘要： A charging apparatus includes a movable charging member for being supplied with a voltage to charge a member to be charged, said charging member being provided with a flexible member for forming a nip with the member to be charged, wherein a speed difference is provided between surfaces of the member to be charged and said flexible member; electroconductive particles supplying means, having a foam member contactable to said charging member, for supplying electroconductive particles to said charging member to provide the nip with the electroconductive particles.

    摘要翻译： 充电装置包括：可动充电构件，用于向被充电构件充电的电压被提供，所述充电构件设置有用于与待充电构件形成压区的柔性构件，其中在表面之间设置速度差 被指定的会员和所述弹性会员; 导电颗粒供应装置，具有可与所述充电构件接触的泡沫构件，用于向所述充电构件提供导电颗粒以向所述压区提供导电颗粒。

    Image forming apparatus which supplies image bearing member with electrically conductive particles during development
    8.
    发明授权
    Image forming apparatus which supplies image bearing member with electrically conductive particles during development 有权
    在显影期间向图像承载部件提供导电颗粒的图像形成装置

    公开(公告)号：US06173144B2

    公开(公告)日：2001-01-09

    申请号：US09390647

    申请日：1999-09-07

    申请人： Jun Hirabayashi ,  Harumi Ishiyama ,  Yasunori Chigono ,  Seiichi Shinohara

    发明人： Jun Hirabayashi ,  Harumi Ishiyama ,  Yasunori Chigono ,  Seiichi Shinohara

    IPC分类号： G03G1500

    CPC分类号： G03G13/025

    摘要： An image forming apparatus includes an image bearing member, a charging unit for charging the image bearing member, an image forming unit for forming an electrostatic image on the image bearing member charged by the charging unit, a developing device for developing the electrostatic image on the image bearing member and for supplying to the image bearing member charging performance enhancing particles which have a polarity opposite from that of the toner, wherein the developing device has a developer carrying member, opposed to the image bearing member, for carrying the toner and charging performance enhancing particles and also which forms an alternating electric field between the developer carrying member and the image bearing member to supply the toner and the charging performance enhancing particles to the image bearing member. A time duration for supplying the charging performance enhancing particles is longer than a time duration for supplying the toner, in an on period of the alternating electric field.

    摘要翻译： 图像形成装置包括图像承载部件，用于对图像承载部件充电的充电单元，用于在由充电单元充电的图像承载部件上形成静电图像的图像形成单元，用于在静电图像上显影静电图像的显影装置 图像承载部件，并且用于向图像承载部件提供具有与调色剂极性相反极性的充电性能增强颗粒，其中显影装置具有与图像承载部件相对的用于承载调色剂和充电性能的显影剂承载部件 增强颗粒，并且还在显影剂承载构件和图像承载构件之间形成交替电场，以将调色剂和充电性能增强颗粒供应给图像承载构件。 用于提供充电性能增强颗粒的持续时间比在交变电场的接通时段中供给调色剂的持续时间长。