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    Image forming apparatus having a cover for protecting a transfer region of an intermediate transfer member when a door is opened
    2.
    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

    Applicant: Katsutoshi Ogawa ,  Akira Kumon ,  Junichi Nawama

    Inventor： Katsutoshi Ogawa ,  Akira Kumon ,  Junichi Nawama

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

    CPC classification number: G03G15/1605 ,  G03G21/1633 ,  G03G2215/0103 ,  G03G2221/1642 ,  G03G2221/169

    Abstract: 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.

    Abstract translation: 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。

    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

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

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

    IPC: B41J206

    CPC classification number: B41J2/4155

    Abstract: 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.

    Abstract translation: 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 apparatus and image forming head
    4.
    发明授权
    Image forming apparatus and image forming head 失效
    图像形成装置和图像形成头

    公开(公告)号：US06499830B1

    公开(公告)日：2002-12-31

    申请号：US09831700

    申请日：2001-05-11

    Applicant: Akira Kumon ,  Akira Fukano ,  Yoshitaka Kitaoka ,  Akira Ryoji

    Inventor： Akira Kumon ,  Akira Fukano ,  Yoshitaka Kitaoka ,  Akira Ryoji

    IPC: B41J206

    CPC classification number: G03G15/346 ,  B41J2/4155 ,  G03G2217/0025

    Abstract: An image forming apparatus for use in a printer for computers and the like includes an image forming head (7) between a developing sleeve (2) and an opposing electrode. (6). Control electrodes (19) are provided around respective openings (16) of the head (7), so that the openings (16) are electrostatically opened and closed by controlling a voltage applied to the respective control electrodes (19). In order to prevent the openings (16) of the head (7) from being clogged with toner (5), the percentage of the area of the opening (16) to the sum of the area of the extent of the control electrode (19) around the opening (16) and the area of the opening (16) is set to 8% or more.

    Abstract translation: 用于计算机等的打印机中的图像形成装置包括显影套筒（2）和对置电极之间的图像形成头（7）。 （6）。 控制电极（19）设置在头部（7）的相应开口（16）周围，使得开口（16）通过控制施加到各个控制电极（19）的电压而被静电地打开和关闭。 为了防止头部（7）的开口（16）被调色剂（5）阻塞，开口（16）的面积的百分比与控制电极（19）的面积的总和的百分比 ）和开口（16）的面积设定为8％以上。

    Image forming device and image forming method
    5.
    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

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

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

    IPC: B41J206

    CPC classification number: B41J2/4155 ,  G03G2217/0025

    Abstract: 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.

    Abstract translation: 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 device
    6.
    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

    Applicant: Katsutoshi Ogawa ,  Masahiro Aizawa ,  Akira Kumon ,  Akira Fukano

    Inventor： Katsutoshi Ogawa ,  Masahiro Aizawa ,  Akira Kumon ,  Akira Fukano

    IPC: B41J206

    CPC classification number: B41J2/4155 ,  G03G2217/0025

    Abstract: 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.

    Abstract translation: 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。

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

    公开(公告)号：US06394587B1

    公开(公告)日：2002-05-28

    申请号：US09830759

    申请日：2001-06-26

    Applicant: Masahiro Aizawa ,  Yoshitaka Kitaoka ,  Akira Kumon ,  Akira Fukano

    Inventor： Masahiro Aizawa ,  Yoshitaka Kitaoka ,  Akira Kumon ,  Akira Fukano

    IPC: B41J0206

    CPC classification number: G03G15/346 ,  B41J2/4155 ,  G03G2217/0025

    Abstract: An image forming device includes a toner carrier (1) for holding and conveying charged toner (2), and a toner passage controller (3) including a plurality of holes (4) through which toner (2) is passed and control electrodes (10) disposed surrounding the holes. The control of passing of the toner (2) through the holes is effected by applying voltage to the control electrodes in accordance with image signals. The holes (4) have an elongated shape, with the length along a direction in which the toner carrier (1) moves being longer than the width orthogonal to the lengthwise direction, so that the consumption areas of toner (2) on the toner carrier (1) do not interfere with each other while the open area of the holes (4) is sufficiently secured.

    Abstract translation: 图像形成装置包括用于保持和传送带电调色剂的调色剂载体（1）和调色剂通道控制器（3），该调色剂通道控制器包括多个通过调色剂（2）的孔（4）和控制电极（10） ）围绕孔设置。 调色剂（2）通过孔的控制通过根据图像信号向控制电极施加电压来实现。 孔（4）具有细长形状，其长度沿调色剂载体（1）移动的方向长于与长度方向垂直的宽度，使得调色剂载体上的调色剂（2）的消耗面积 （1）在孔（4）的开放区域被充分固定的情况下，不会彼此干涉。

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