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17 条记录 (耗时 0.013 秒)

    Image forming apparatus and image forming method
    3.
    发明公开
    Image forming apparatus and image forming method 审中-公开
    成像装置和成像方法

    公开(公告)号：EP0945275A3

    公开(公告)日：1999-10-13

    申请号：EP99302233.4

    申请日：1999-03-23

    申请人： Matsushita Electric Industrial Co., Ltd.

    发明人： Kumon, Akira ,  Aizawa, Masahiro ,  Kitaoka,Yoshitaka ,  Ogawa, Katsutoshi ,  Matsuo,Hiroyuki ,  Fukano, Akira ,  Ryouji,Akira

    IPC分类号： B41J2/415

    CPC分类号： B41J2/4155

    摘要： An image forming apparatus and an image forming method are characterized in that charged particle jumping can be controlled by applying signals having a small potential difference, and that low-voltage type switching devices can be used as switching devices for the power source. Control electrodes 16 are provided to move charged particles detached from a development roller 2 and to control the movement amount of the charged particles by generating a transfer electric field directly or indirectly between the development roller 2 and a rear electrode 8. A bias electrostatic field is generated between the development roller 2 and the control electrodes 16 by applying a voltage under a jumping start voltage, which is a voltage having the polarity opposite to the polarity of the charged particles and is lower than the jumping start voltage for detaching the charged particles from the development roller 2.

    摘要翻译： 图像形成装置和图像形成方法的特征在于，可以通过施加具有小电位差的信号来控制带电粒子跳跃，并且可以将低压型开关装置用作电源的开关装置。 设置控制电极16以移动从显影辊2分离的带电粒子，并且通过在显影辊2和背面电极8之间直接或间接产生转印电场来控制带电粒子的移动量。偏置静电场是 通过在跳跃起始电压下施加电压在显影辊2和控制电极16之间产生，所述起始电压是具有与带电粒子的极性相反的极性并且低于用于从带电粒子中分离带电粒子的跳跃起始电压的电压 显影辊2。

    Color image forming apparatus and method for forming a color image
    4.
    发明公开
    Color image forming apparatus and method for forming a color image 失效
    Farbbilderzeugungsgerätund Verfahren zur Farbbilderzeugung

    公开(公告)号：EP0686890A3

    公开(公告)日：1997-07-23

    申请号：EP95108986.1

    申请日：1995-06-09

    申请人： Matsushita Electric Industrial Co., Ltd.

    发明人： Kumon, Akira ,  Nawama, Junichi

    IPC分类号： G03G15/01 ,  G03G15/14

    CPC分类号： G03G15/0136 ,  G03G15/0121 ,  G03G15/0194 ,  G03G15/1605 ,  G03G2215/0116 ,  G03G2215/1661

    摘要： A color image forming apparatus forming toner images of yellow, magenta, cyanogen and black respectively by rotational movement of different image forming units is described. The toner images are transferred to and superimposed on an intermediate transfer belt and then re-transferred to a paper sheet by pressing a transfer roller on the intermediate transfer belt via the paper sheet. A rotational axis of the transfer roller is immovable, and a potential of the transfer roller is electrically floated while the toner images are transferred to the intermediate transfer belt.

    摘要翻译： 描述了通过不同图像形成单元的旋转运动分别形成黄色，品红色，氰色和黑色的调色剂图像的彩色图像形成装置。 将调色剂图像转印到中间转印带上并叠加在中间转印带上，然后通过经由纸张将中间转印带上的转印辊按压而重新转印到纸张上。 转印辊的旋转轴线是不可移动的，并且转印辊的电位在调色剂图像被转印到中间转印带的同时被浮动。

    Electrophotographic charging device
    7.
    发明公开
    Electrophotographic charging device 失效
    Elektrofotografische Aufladevorrichtung。

    公开(公告)号：EP0567069A2

    公开(公告)日：1993-10-27

    申请号：EP93106381.2

    申请日：1993-04-20

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Kumon, Akira ,  Ogawa, Katsutoshi ,  Tatekawa, Masaichiro ,  Hisada, Hitoshi ,  Nawama, Junichi ,  Katakabe, Noboru ,  Aizawa, Masahiro

    IPC分类号： G03G15/02

    CPC分类号： G03G15/0216 ,  G03G15/0291

    摘要： A charging device for charging a surface of a photosensitive member in an electrophotographic process in which at least charging, exposure, development and transfer steps are performed repeatedly, the charging device comprising: a charging member (4) which includes an electrically conductive charging wire (2); the charging wire (2) being formed into a plurality of wire sections (2a) which form an angle less than 90° with an axial direction of the photosensitive member (3) and are arranged at an interval in the axial direction of the photosensitive member (3) so as to be brought into contact with the surface of the photosensitive member (3); and a power source for applying to the charging wire (2), a pulse voltage having a polarity identical with that of toner.

    摘要翻译： 一种充电装置，用于在其中至少重复进行充电，曝光，显影和转印步骤的电子照相工艺中对感光构件的表面充电，所述充电装置包括：充电构件（4），其包括导电充电线 2）; 所述充电线（2）形成为与感光构件（3）的轴向形成小于90度的角度的多个线段（2a），并且在所述感光构件的轴向方向上以间隔布置 （3），以便与感光构件（3）的表面接触; 以及用于施加到充电线（2）的电源，具有与调色剂的极性相同的极性的脉冲电压。

    Image forming method and device
    8.
    发明公开
    Image forming method and device 审中-公开
    成像方法和装置

    公开(公告)号：EP0950929A3

    公开(公告)日：2000-08-23

    申请号：EP99302790.3

    申请日：1999-04-09

    申请人： Matsushita Electric Industrial Co., Ltd. ,  ARRAY PRINTERS AB

    发明人： Ogawa, Katsutoshi ,  Kumon, Akira ,  Kitaoka, Yoshitaka ,  Aizawa, Masahiro ,  Matsuo, Hiroyuki ,  Fukano, Akira ,  Ryoji, Akira

    IPC分类号： G03G15/34

    CPC分类号： G03G15/346 ,  G03G2217/0025

    摘要： In an image forming device wherein printing is accomplished such that passing of charged toners fed from a developer roller (2) through a plurality of openings (14) is controlled by control electrodes (16) of an aperture electrode (12) in accordance with image signals, toners held on the developer roller (2) are caused to reach the vicinity of the openings (14), by inputting a predetermined signal to the control electrodes (16) of the aperture electrode (12), at least once during the period when no image forming action in accordance with the prescribed image signals is performed.

    摘要翻译： 在图像形成装置中，其中完成打印以使得从显影辊（2）供给的充电调色剂通过多个开口（14）的通过由孔径电极（12）的控制电极（16）根据图像 通过向孔电极（12）的控制电极（16）输入预定信号至少一次在显影辊（2）上保持保持在显影辊（2）上的信号，调色剂到达开口 当不执行根据规定的图像信号的图像形成动作时。

    Charging device and an image forming apparatus having the charging device
    10.
    发明公开
    Charging device and an image forming apparatus having the charging device 失效
    Aufladevorrichtung und einBilderzeugungsgerätmit der Aufladevorrichtung。

    公开(公告)号：EP0661606A2

    公开(公告)日：1995-07-05

    申请号：EP94120863.9

    申请日：1994-12-28

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Naka, Teruyuki ,  Umeda, Yoshio ,  Yamamura, Toshiki ,  Kumon, Akira ,  Suzuki, Seiichi ,  Nawama, Junichi ,  Nagase, Hisanori

    IPC分类号： G03G15/02

    CPC分类号： G03G15/0233

    摘要： A charging device for charging a movable object to be charged, has a charging member which contacts with the object to be charged, and a power source for applying a voltage to the charging member, wherein the power spectrum PS satisfies the following relation when the space frequency of the profile of the surface of the charging member is analyzed.
    In the section of 10 ≦ f ≦ 100 (cycles/mm):

    PS ≦ -2.5 x log (f/2) (µm²)

    The invention therefore presents a charging device capable of preventing charge unevenness due to undulations on the surface of the charging member, and charging uniformly, and generating very little ozone.

    摘要翻译： 一种充电装置，用于对被充电的可移动物体进行充电，具有与要充电的物体接触的充电构件和用于向充电构件施加电压的电源，其中当空间 分析充电部件表面轮廓的频率。 在10