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    Image forming apparatus and method using charge control means
    2.
    发明授权
    Image forming apparatus and method using charge control means 失效
    使用充电控制装置的图像形成装置和方法

    公开(公告)号：US5911097A

    公开(公告)日：1999-06-08

    申请号：US42670

    申请日：1998-03-17

    申请人： Masayasu Haga ,  Tsugihito Yoshiyama ,  Yasuhiro Nakagami ,  Masami Matsuura ,  Akira Hirota

    发明人： Masayasu Haga ,  Tsugihito Yoshiyama ,  Yasuhiro Nakagami ,  Masami Matsuura ,  Akira Hirota

    IPC分类号： G03G15/02 ,  G03G21/00

    CPC分类号： G03G15/0266 ,  G03G15/0291 ,  G03G2215/021 ,  Y10S430/102

    摘要： Applied voltage to the contact charging sheet 71 has been controlled in the following various ways: a) the voltage at the photosensitive layer 10 at a point of time whereat it has passed the contact charging sheet 71 is caused to interlock with grid voltage so as not to exceed predetermined voltage to be electrified by the Scorotron charger 2; b) the applied voltage is caused to interlock with the output from the transfer unit 5 so that there is no portion which reaches the Scorotron charger 2 while the potential polarity has been reversed at the transfer unit 5; c) reduction in the film thickness of the photosensitive layer 10 is corrected in consideration of the cumulative number of sheets for image formation; d) the size of printing sheet is added; e) at the time of termination, a portion of the photosensitive layer 10, into which current has flowed at the transfer unit 5, is caused to stop always after passing the contact charging sheet 71; f) the contact charging sheet 71 is cleaned by means of AC component; and g) the applied voltage is switched while formation of an electrostatic latent image and the like are not performed. Thereby, the surface potential at the photosensitive drum 1 is prevented from becoming ununiform.

    摘要翻译： 接触充电片71的施加电压已经以下列各种方式进行了控制：a）使感光层10在已经通过接触充电片71的时间点处的电压与电网电压互锁，使得不 超过预定电压由Scorotron充电器2带电; b）使施加的电压与转印单元5的输出互锁，使得在转印单元5处的电位极性已经反转的情况下，没有到达Scorotron充电器2的部分; c）考虑到用于图像形成的片材的累积数量来校正感光层10的膜厚度的减小; d）添加打印纸的尺寸; e）在终止时，使电流在转印单元5处流动的感光层10的一部分在通过接触充电片71之后始终停止; f）接触充电片71通过AC部件清洁; 并且g）在不形成静电潜像等的情况下切换所施加的电压。 由此，能够防止感光鼓1的表面电位变得不均匀。

    Imaging cartridge for use in an image forming apparatus including detachable electrode member
    4.
    发明授权
    Imaging cartridge for use in an image forming apparatus including detachable electrode member 失效
    用于包括可拆卸电极部件的图像形成装置的成像盒

    公开(公告)号：US06249660B1

    公开(公告)日：2001-06-19

    申请号：US08907083

    申请日：1997-08-06

    申请人： Kouji Matsushita ,  Yasuhiro Nakagami

    发明人： Kouji Matsushita ,  Yasuhiro Nakagami

    IPC分类号： G03G1502

    CPC分类号： G03G21/1814 ,  G03G15/0291 ,  G03G21/1652 ,  G03G2221/1693

    摘要： In an imaging cartridge for forming images at least including a corona charging device and an object to be charged, a discharging electrode unit in the corona charging device is supported in such a manner that the electrode unit can be separately detached therefrom and installed thereto without being obstructed by the object to be charged or by a grid electrode from a side opposite to the member to be charged.

    摘要翻译： 在用于形成至少包括电晕充电装置和被充电对象的图像的成像盒中，电晕充电装置中的放电电极单元被支撑，使得电极单元可以分离地从其中分离并安装在其上，而不会 受到被充电物体的妨碍，或被栅极电极从与被充电构件相反的一侧阻碍。

    Charging device for image forming apparatus
    5.
    发明授权
    Charging device for image forming apparatus 失效
    成像装置用充电装置

    公开(公告)号：US5842087A

    公开(公告)日：1998-11-24

    申请号：US879329

    申请日：1997-06-20

    申请人： Kouji Matsushita ,  Yasuhiro Nakagami ,  Futoshi Okazaki

    发明人： Kouji Matsushita ,  Yasuhiro Nakagami ,  Futoshi Okazaki

    IPC分类号： G03G15/02

    CPC分类号： G03G15/0216 ,  G03G15/025

    摘要： A charging device K is provided with a flexible electrode 12 and a flexible intermediate member M disposed between the flexible electrode 12 and a charge-receiving member 10, with the flexible intermediate member M being in contact with the charge-receiving member 10. The flexible intermediate member M includes a flexible insulated member 11 and semiconductive member 14 so as to charge the charge-receiving member 10 via a discharge from electrode 12. The absolute value of the difference between the potential of the flexible electrode 12 during discharge and the potential in the vicinity of at least the area of discharge of the flexible electrode 12 among areas in which the flexible intermediate member is in contact with the charge-receiving member 10, is less than the absolute value of the difference between the potential of the charge-receiving member and the potential of the flexible electrode during discharge.

    摘要翻译： 充电装置K设置有柔性电极12和设置在柔性电极12和电荷接收构件10之间的柔性中间构件M，柔性中间构件M与电荷接收构件10接触。柔性 中间构件M包括柔性绝缘构件11和半导体构件14，以便经由电极12的放电来对电荷接收构件10充电。放电期间柔性电极12的电位与电位之间的差异的绝对值 柔性中间构件与电荷接收构件10接触的区域中的至少柔性电极12的排出面积的附近小于电荷接收构件10的电位差的绝对值 成员和放电期间柔性电极的电位。

    Corona discharge device
    6.
    发明授权
    Corona discharge device 失效
    电晕放电装置

    公开(公告)号：US5466938A

    公开(公告)日：1995-11-14

    申请号：US314086

    申请日：1994-09-28

    申请人： Yasunori Nakayama ,  Noboru Yonekawa ,  Kouji Matsushita ,  Yasuhiro Nakagami ,  Shizuo Yuge

    发明人： Yasunori Nakayama ,  Noboru Yonekawa ,  Kouji Matsushita ,  Yasuhiro Nakagami ,  Shizuo Yuge

    IPC分类号： G03G15/02 ,  H01T19/04

    CPC分类号： H01T19/04 ,  G03G15/0291 ,  G03G2215/028

    摘要： Grid wires arranged in an axial direction of a photoconductive drum have a positional relation with projecting electrodes arranged at regular intervals in an axial direction of the photoconductive drum at a position opposite to the surface of the photoconductive drum wherein the grid wires and the projecting electrodes positioned adjacent to each other are equally arranged in distance to uniformly discharge an electric charge to the surface of the photoconductive drum from each of the projecting electrodes so that uniform charging can be accomplished in an axial direction of the photoconductive drum.

    摘要翻译： 在感光鼓的轴向布置的网格线与在感光鼓的轴向方向上以规则间隔布置在与感光鼓的表面相对的位置处的位置关系，其中网格线和突出电极位于 彼此相邻的距离均匀地设置成从每个突出电极均匀地将电荷均匀地放电到感光鼓的表面，使得可以在感光鼓的轴向方向上实现均匀充电。

    Charging device for image forming apparatus
    10.
    发明授权
    Charging device for image forming apparatus 失效
    成像装置用充电装置

    公开(公告)号：US5787327A

    公开(公告)日：1998-07-28

    申请号：US671879

    申请日：1996-06-28

    申请人： Kouji Matsushita ,  Yasuhiro Nakagami

    发明人： Kouji Matsushita ,  Yasuhiro Nakagami

    IPC分类号： B41J2/39 ,  B41J2/395 ,  G03G15/02 ,  G03G15/22

    CPC分类号： B41J2/395 ,  G03G15/0216 ,  G03G15/0233 ,  G03G15/025

    摘要： This invention relates to the charging member portion of an image forming apparatus. A plurality of charging members are disclosed that maintain a uniform spacing between a charge-receiving member and the discharging portion of the charging members' electrodes despite surface irregularities and surface waviness on the charge-receiving member. One charging member is in the form of a flexible sheet provided with ventilation holes in a non-contacting portion thereof, permitting the air produced by the rotation of the charge-receiving member to escape through the holes to suppress the lifting of the charging member. Pressure fins can be added to the charging member on the downstream of the ventilation holes for further suppressing any lifting. Another charging member includes a semiconductive member or a electret member on at least the surface of the charging member on the side opposite the charge-receiving member. This permits the charging member to be electrostatically attracted to the charge-receiving member.

    摘要翻译： 本发明涉及图像形成装置的充电部件部分。 公开了多个充电构件，尽管电荷接收构件上的表面凹凸和表面波纹，电荷接收构件和充电构件的电极的放电部分之间保持均匀的间隔。 一个充电构件是在其非接触部分中设置有通气孔的柔性片的形式，允许由电荷接收构件的旋转产生的空气通过孔逸出，以抑制充电构件的提升。 可以在通风孔的下游的充电部件上添加压力翅片，以进一步抑制任何提升。 另一个充电构件在充电构件的与电荷接收构件相对的一侧的至少表面上包括半导体构件或驻极体构件。 这允许充电构件被静电吸引到电荷接收构件。