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    Image forming method and image forming apparatus
    1.
    发明授权
    Image forming method and image forming apparatus 失效
    图像形成方法和图像形成装置

    公开(公告)号：US06565194B2

    公开(公告)日：2003-05-20

    申请号：US10181326

    申请日：2002-07-16

    申请人： Katsutoshi Ogawa ,  Hiroshi Saegusa ,  Yoshitaka Kitaoka ,  Taichi Itoh

    发明人： Katsutoshi Ogawa ,  Hiroshi Saegusa ,  Yoshitaka Kitaoka ,  Taichi Itoh

    IPC分类号： B41J206

    CPC分类号： B41J2/4155 ,  G03G15/346 ,  G03G2217/0025

    摘要： To keep a toner (1) deposited on a transportation belt (21) from contact with a printhead (4) and prevent the clogging of toner passage holes (6) of the printhead (4), the toner (1) on a toner holding member (2) is ejected toward the transportation belt (21) through the toner passage holes (6) after the movement of the transportation belt (21) is initiated such that the cleaning of the toner passage holes (6) is initiated.

    摘要翻译： 为了保持沉积在传送带（21）上的调色剂（1）不与打印头（4）接触，并且防止打印头（4）的调色剂通孔（6）堵塞，调色剂（1） 在启动运输带（21）的移动之后，构件（2）通过调色剂通孔（6）被朝向输送带（21）喷出，从而启动调色剂通孔（6）的清洁。

    Image forming apparatus and image forming method
    3.
    发明授权
    Image forming apparatus and image forming method 失效
    图像形成装置及图像形成方法

    公开(公告)号：US06286936B1

    公开(公告)日：2001-09-11

    申请号：US09274794

    申请日：1999-03-23

    申请人： Akira Kumon ,  Masahiro Aizawa ,  Yoshitaka Kitaoka ,  Katsutoshi Ogawa ,  Hiroyuki Matsuo ,  Akira Fukano ,  Akira Ryouji

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

    IPC分类号： B41J206

    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，可以通过施加具有较小电位差的信号来控制带电粒子跳跃，并且可以使用低电压型开关装置作为电源的开关装置。 设置控制电极16以移动从显影辊2分离的带电粒子，并通过在显影辊2和后电极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 通过施加具有与带电粒子的极性相反极性的电压的跳跃起始电压下的电压，并且低于用于将带电粒子分离的跳跃开始电压，在显影辊2和控制电极16之间产生电压 显影辊2。

    Image forming device and image forming method
    4.
    发明授权
    Image forming device and image forming method 失效
    图像形成装置和图像形成方法

    公开(公告)号：US06409314B1

    公开(公告)日：2002-06-25

    申请号：US09601147

    申请日：2000-07-28

    申请人： Yoshitaka Kitaoka ,  Akira Kumon ,  Katsutoshi Ogawa ,  Akira Fukano ,  Masahiro Aizawa ,  Hiroyuki Matsuo

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

    IPC分类号： B41J206

    CPC分类号： B41J2/4155 ,  G03G2217/0025

    摘要： In an image forming apparatus of the present invention, image signal electrodes are provided on a flexible printed circuit base in opposing relation to a developer carrying member such that they are disposed around the openings of developer passage holes, different voltages are applied thereto during dot formation and during non-dot formation, a throttle electrode is provided on the flexible printed circuit base in opposing relation to a counter electrode, a voltage always lower than the voltage applied to the image signal electrodes is applied to the throttle electrode when a developer of negative polarity is applied, and a voltage always higher than the voltage applied to the image signal electrodes is applied to the throttle electrode when a developer of positive polarity is applied.

    摘要翻译： 在本发明的图像形成装置中，图像信号电极以与显影剂承载构件相对的方式设置在柔性印刷电路基底上，使得它们围绕显影剂通道孔的开口设置，在点形成期间施加不同的电压 并且在非点形成期间，在柔性印刷电路基座上设置有与对电极相对的节流电极，当阴极的显影剂为负时，将总是低于施加到图像信号电极的电压的电压施加到节流电极 施加正极性的显影剂时，施加到图像信号电极上的电压总是高于节流电极的电压。

    Image forming apparatus having a cover for protecting a transfer region of an intermediate transfer member when a door is opened
    6.
    发明授权
    Image forming apparatus having a cover for protecting a transfer region of an intermediate transfer member when a door is opened 失效
    图像形成装置具有用于在打开门时保护中间转印部件的转印区域的盖

    公开(公告)号：US5787326A

    公开(公告)日：1998-07-28

    申请号：US626345

    申请日：1996-04-02

    申请人： Katsutoshi Ogawa ,  Akira Kumon ,  Junichi Nawama

    发明人： Katsutoshi Ogawa ,  Akira Kumon ,  Junichi Nawama

    IPC分类号： G03G15/01 ,  G03G15/00 ,  G03G15/16 ,  G03G21/16

    CPC分类号： G03G15/1605 ,  G03G21/1633 ,  G03G2215/0103 ,  G03G2221/1642 ,  G03G2221/169

    摘要： In a color electrophotographic printer, an intermediate transfer belt is provided to layer toner images of a plurality of colors, and the toner images on the belt are transferred onto a paper sheet. In order to remove a paper sheet when a paper jam happens, a door is provided in a case of the printer, while a cover is provided to protect a transfer region where the intermediate transfer belt contacts with a paper sheet for transferring the toner images. When the door is opened, the cover moves to cover a portion of the surface of the intermediate transfer belt exposed to the door. When the jammed paper sheet is removed, the image forming process is resumed immediately on the toner images on the intermediate transfer belt. Further, an intermediate transfer unit including the intermediate transfer belt and the cover detachable from the printer may be provided. In a modified example, a transfer member which is connected to a transfer member is provided instead of the cover, and when the door is opened, the transfer member covers the surface of the intermediate transfer belt.

    摘要翻译： 在彩色电子照相打印机中，提供中间转印带以分层多色调色剂图像，并将带上的调色剂图像转印到纸张上。 为了在发生卡纸时去除纸张，在打印机的壳体中设置门，同时提供盖以保护中间转印带与用于转印调色剂图像的纸张接触的转印区域。 当门打开时，盖移动以覆盖暴露于门的中间转印带的表面的一部分。 当卡住的纸张被移除时，图像形成处理在中间转印带上的调色剂图像上立即恢复。 此外，可以提供包括中间转印带和可从打印机拆卸的盖的中间转印单元。 在变形例中，代替盖而设置与转印部件连接的转印部件，当打开门时，转印部件覆盖中间转印带的表面。

    Multi-chamber electro-photographic developing unit for image forming apparatus
    7.
    发明授权
    Multi-chamber electro-photographic developing unit for image forming apparatus 失效
    用于图像形成装置的多室电子照相显影单元

    公开(公告)号：US5539502A

    公开(公告)日：1996-07-23

    申请号：US405874

    申请日：1995-03-17

    申请人： Toshiharu Koshino ,  Masahiko Nakamura ,  Toichi Matsumura ,  Hiroshi Komata ,  Kazumasa Hayashi ,  Kenji Asakura ,  Hiroshi Komakine ,  Katsutoshi Ogawa

    发明人： Toshiharu Koshino ,  Masahiko Nakamura ,  Toichi Matsumura ,  Hiroshi Komata ,  Kazumasa Hayashi ,  Kenji Asakura ,  Hiroshi Komakine ,  Katsutoshi Ogawa

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0822 ,  G03G2215/0819

    摘要： A developing unit for use in image forming apparatus includes a unit housing divided in three chambers, i.e. a toner applying chamber facing a photoreceptor and first and second toner replenishing chambers, by respective partition walls each having an opening as a passage for toner. The first and second chambers have rotation frames, respectively. Each frame has a radially extending arm to the end of which a toner transporting sheet is connected. Each sheet is provided with a friction film. When each frame rotates, the sheet with the friction film is pulled by the frame for its rotation under the toner so as to be deformed in the form of a circular arc. The toner is transported forwardly by the friction force of the friction film. When the amount of toner is reduced in each chamber, each sheet may resiliently restore to its original shape to contact the inner surface of the corresponding chamber so that a small amount of toner on the bottom of each chamber can be carried forwardly.

    摘要翻译： 用于图像形成装置的显影单元包括：分隔成三个室的单元壳体，即，面向感光体​​的调色剂施加室和第一和第二调色剂补充室，每个分隔壁具有作为调色剂通道的开口。 第一和第二腔室分别具有旋转框架。 每个框架具有径向延伸的臂，其端部连接调色剂输送片。 每个片材都设置有摩擦膜。 当每个框架旋转时，具有摩擦膜的片材被框架拉动以在调色剂下旋转，以便以圆弧的形式变形。 调色剂通过摩擦膜的摩擦力向前输送。 当每个室中的调色剂量减少时，每个片材可以弹性恢复到其原始形状以接触相应室的内表面，使得每个室的底部上的少量调色剂可以向前传送。

    Image-forming device
    8.
    发明授权
    Image-forming device 失效
    图像形成装置

    公开(公告)号：US06715858B1

    公开(公告)日：2004-04-06

    申请号：US09979225

    申请日：2002-05-10

    申请人： Katsutoshi Ogawa ,  Masahiro Aizawa ,  Akira Kumon ,  Akira Fukano

    发明人： Katsutoshi Ogawa ,  Masahiro Aizawa ,  Akira Kumon ,  Akira Fukano

    IPC分类号： B41J206

    CPC分类号： B41J2/4155 ,  G03G2217/0025

    摘要： An image forming device includes a developer carrier (1) for carrying a charged developer (2), and a developer passing controller (3) for applying a voltage corresponding to an image. signal to a plurality of control electrodes (10) to control the passing of said developer (2), the developer passing controller having a plurality of developer passing holes (4) through which the developer (2) passes and said control electrodes being arranged to surround the surroundings of the developer passing holes. The width (W1) of a control electrode row (5) in the longitudinal direction where the control electrodes (10) are arranged is wider than the width (W2) of an image forming area, and both ends (B1, B2) of the control electrode row (5) in the longitudinal direction are arranged outside the width (W2) of an image forming area.

    摘要翻译： 图像形成装置包括用于承载带电显影剂（2）的显影剂载体（1）和用于施加与图像相对应的电压的显影剂通过控制器（3）。 信号到多个控制电极（10）以控制所述显影剂（2）的通过，所述显影剂通过控制器具有多个显影剂通过孔（4），所述显影剂（2）通过所述显影剂通过孔，并且所述控制电极被布置成 围绕显影剂通过孔的周围。 控制电极列（5）在布置有控制电极（10）的纵向方向上的宽度（W1）比图像形成区域的宽度（W2）宽，并且两端（B1，B2） 控制电极列（5）在纵向方向上布置在图像形成区域的宽度（W2）的外侧。

    Electrophotographic charging device
    10.
    发明授权
    Electrophotographic charging device 失效
    电子照相充电装置

    公开(公告)号：US5381214A

    公开(公告)日：1995-01-10

    申请号：US48514

    申请日：1993-04-20

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

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

    IPC分类号： G03G15/02

    CPC分类号： G03G15/0216 ,  G03G15/0291

    摘要： A charging member for charging a photosensitive member from above toner in an electrophotographic process in which charging, exposure, development, and transfer steps are performed repeatedly and in which a step of cleaning toner remaining on a photosensitive member is eliminated, the charging member including: an electrically conductive charging wire which is disposed in contact with the photosensitive member; the charging wire forming an angle of less than 90.degree. with a direction of a rotational axis of the photosensitive member and is arranged at an interval in the direction of the rotational axis of the photosensitive member; and a power source for applying a pulse voltage to the charging wire, the pulse voltage having a polarity identical with that of the toner so as to vibrate the toner.

    摘要翻译： 一种充电构件，用于在其中重复进行充电，曝光，显影和转印步骤的电子照相工艺中从上述调色剂充电感光构件，并且其中清除残留在感光构件上的调色剂的步骤被消除，充电构件包括： 设置成与感光构件接触的导电充电线; 所述充电线与所述感光构件的旋转轴线的方向形成小于90度的角度并且沿所述感光构件的旋转轴线的方向间隔设置; 以及用于向所述充电线施加脉冲电压的电源，所述脉冲电压具有与所述调色剂的极性相同的极性，以使所述调色剂振动。