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    Electrophotographic apparatus
    1.
    发明授权
    Electrophotographic apparatus 失效
    电子照相设备

    公开(公告)号：US5923933A

    公开(公告)日：1999-07-13

    申请号：US23462

    申请日：1998-02-13

    申请人： Masayasu Anzai ,  Tsuneaki Kawanishi ,  Yoshitaka Fujinuma ,  Hiroyoshi Matsumoto ,  Yasuo Takuma ,  Hisao Okada ,  Masayuki Ainoya ,  Takashi Suzuki ,  Yuichiro Suzuki ,  Tomonari Hokkyo ,  Koji Kato ,  Katsuya Kawai ,  Tsutomu Nakagawa

    发明人： Masayasu Anzai ,  Tsuneaki Kawanishi ,  Yoshitaka Fujinuma ,  Hiroyoshi Matsumoto ,  Yasuo Takuma ,  Hisao Okada ,  Masayuki Ainoya ,  Takashi Suzuki ,  Yuichiro Suzuki ,  Tomonari Hokkyo ,  Koji Kato ,  Katsuya Kawai ,  Tsutomu Nakagawa

    IPC分类号： G03G15/09

    CPC分类号： G03G15/09 ,  G03G2215/0609 ,  G03G2215/0648

    摘要： A uniform image is obtained by matching the sliding friction force, the moving speed and the developing agent in a developing region of two developing rollers and an electric characteristic of a photosensitive body used for image development. Two developing rollers rotating in directions opposite to each other are used, the moving direction of the first developing roller being opposite to the moving direction of the photosensitive body, and a circumferential speed ratio of a circumferential speed of the first developing roller to a circumferential speed of the photosensitive body is within a rage of 0.5 to 2.5; and the moving direction of the second developing roller is equal to the moving direction of the photosensitive body, and a circumferential speed ratio of a circumferential speed of the second developing roller to a circumferential speed of the photosensitive body is within a range of 1.5 to 3.5. A ratio of the sliding friction force between a magnetic brush for developing agent and the photosensitive body formed in the first developing roller and the sliding friction force between a magnetic brush for developing agent and the photosensitive body formed in the second developing roller is within a range of 0.9 to 2.1.

    摘要翻译： 通过匹配两个显影辊的显影区域中的滑动摩擦力，移动速度和显影剂以及用于图像显影的感光体的电特性来获得均匀的图像。 使用沿彼此相反的方向旋转的两个显影辊，第一显影辊的移动方向与感光体的移动方向相反，并且第一显影辊的圆周速度与圆周速度的圆周速度比 的感光体在0.5〜2.5的范围内; 并且第二显影辊的移动方向等于感光体的移动方向，并且第二显影辊的圆周速度与感光体的圆周速度的圆周速度比在1.5至3.5的范围内 。 用于显影剂的磁刷和形成在第一显影辊中的感光体之间的滑动摩擦力与显影剂用磁刷与形成在第二显影辊中的感光体之间的滑动摩擦力之间的滑动摩擦力的比率在一定范围内 为0.9至2.1。

    Developing device
    2.
    发明授权
    Developing device 失效
    开发设备

    公开(公告)号：US5907755A

    公开(公告)日：1999-05-25

    申请号：US73768

    申请日：1998-05-07

    申请人： Yasuo Takuma ,  Yoshitaka Fujinuma ,  Masayasu Anzai ,  Hisao Okada

    发明人： Yasuo Takuma ,  Yoshitaka Fujinuma ,  Masayasu Anzai ,  Hisao Okada

    IPC分类号： G03G15/08 ,  G03G13/08 ,  G03G13/09

    CPC分类号： G03G13/08 ,  G03G13/09 ,  G03G2215/0648

    摘要： A predetermined mathematical formula, which defines an occurrence degree of an image defect where the toner layer is thinned or no toner image is formed, is set up, which is valid for a developing device including a reverse turn developer carrier and a forward turn developer carrier. A difference between the total sum A of the values by the above formula showing the occurrence degree of the image defect on the forward turn developing roller and the total sum B of the values by the above formula showing the occurrence degree on the reverse turn developing roller, i.e., (A-B), is selected within a range of -0.56 to +0.5.

    摘要翻译： 确定限定了调色剂层变薄或不形成调色剂图像的图像缺陷的发生程度的预定数学公式，其对于包括反转显影剂载体和正向转动显影剂载体的显影装置是有效的 。 表示前转显影辊上的图像缺陷的发生程度的上述公式的总和A与通过上述公式的值的总和B之间的差值表示反转显影辊的发生程度 ，即（AB）在-0.56至+0.5的范围内选择。

    Electro-photographic developing unit
    3.
    发明授权
    Electro-photographic developing unit 失效
    电子照相显影单元

    公开(公告)号：US06813462B2

    公开(公告)日：2004-11-02

    申请号：US10351533

    申请日：2003-01-27

    申请人： Teruaki Mitsuya ,  Tsuneaki Kawanishi ,  Masayoshi Ishii ,  Hisao Okada ,  Hiroyoshi Matsumoto ,  Keisuke Kubota ,  Natsuki Kuribayashi

    发明人： Teruaki Mitsuya ,  Tsuneaki Kawanishi ,  Masayoshi Ishii ,  Hisao Okada ,  Hiroyoshi Matsumoto ,  Keisuke Kubota ,  Natsuki Kuribayashi

    IPC分类号： G03G1509

    CPC分类号： G03G15/09 ,  G03G2215/0648

    摘要： A developing unit in an electro-photographic apparatus such as a printer, a facsimile and a copier for actualizing an image employing colored particles such as toner, and more particularly to a developing unit for forming a toner image on the surface of a photosensitive body. The developing unit includes a plurality of developing rollers each having a core and a sleeve. The sleeve accommodates the core. The plurality of developing rollers include a first developing roller and a second developing roller. The sleeve for the first developing roller is rotated to move in the same direction as a moving direction of the surface of the photosensitive body. The sleeve for the second developing roller is rotated to move in an opposite direction to the moving direction of the surface of the photosensitive body. The core of only one of the plurality of developing rollers is driven in rotation while the other core is fixed. Alternatively, a magnetic pole of one of the developing rollers is placed at an opposing position where the developing rollers mutually oppose while an intermediate portion between two poles of the second developer roller is placed at the opposing position.

    摘要翻译： 一种电子照相设备中的显影单元，例如打印机，传真机和复印机，用于实现使用诸如调色剂的着色颗粒的图像，更具体地涉及用于在感光体表面上形成调色剂图像的显影单元。 显影单元包括各自具有芯和套筒的多个显影辊。 套筒容纳核心。 多个显影辊包括第一显影辊和第二显影辊。 用于第一显影辊的套筒旋转以沿与感光体的表面的移动方向相同的方向移动。 用于第二显影辊的套筒旋转以沿与感光体表面的移动方向相反的方向移动。 多个显影辊中只有一个的芯被旋转驱动，而另一个芯是固定的。 或者，一个显影辊的磁极被放置在显影辊相对的相对位置，而第二显影辊的两极之间的中间部分位于相对位置。

    Image forming apparatus with transfer bias inverting function
    4.
    发明授权
    Image forming apparatus with transfer bias inverting function 有权
    具有转印偏压反转功能的图像形成装置

    公开(公告)号：US06829449B2

    公开(公告)日：2004-12-07

    申请号：US10448292

    申请日：2003-05-30

    申请人： Hiroyoshi Matsumoto ,  Teruaki Mitsuya ,  Tsuneaki Kawanishi ,  Hisao Okada ,  Natsuki Kuribayashi ,  Masayoshi Ishii ,  Keisuke Kubota

    发明人： Hiroyoshi Matsumoto ,  Teruaki Mitsuya ,  Tsuneaki Kawanishi ,  Hisao Okada ,  Natsuki Kuribayashi ,  Masayoshi Ishii ,  Keisuke Kubota

    IPC分类号： G03G1516

    CPC分类号： G03G15/16 ,  G03G2215/1614

    摘要： A transfer member transporting section is disposed so as to bring a tip end of a transfer member into contact with a peripheral face of a transfer rotary member before the tip end of the transfer member enters a nip area. A bias power supply has a polarity inverting function of, during a period from a timing when the tip end of the transfer member is brought into contact with the transfer rotary member by the transfer member transporting section, to that when the tip end of the transfer member enters the nip area, applying a voltage of a polarity which is identical with that of a toner, to the transfer rotary member, and after the tip end of the transfer member enters the nip area, applying a voltage of a polarity which is opposite to that of the toner, to the transfer rotary member.

    摘要翻译： 传送部件传送部分设置成使传送部件的前端在转印部件的前端进入辊隙区域之前与转印旋转部件的周面接触。 偏置电源具有极性反转功能，在转印部件的前端通过转印部件输送部与转印旋转部件接触的时刻的期间为转印的前端 构件进入夹持区域，将与调色剂相同的极性电压施加到转印旋转构件，并且在转印构件的末端进入夹持区域之后，施加相反极性的电压 转印到转印旋转部件上。

    Image forming method and image forming apparatus
    6.
    发明授权
    Image forming method and image forming apparatus 有权
    图像形成方法和图像形成装置

    公开(公告)号：US07090956B2

    公开(公告)日：2006-08-15

    申请号：US10025550

    申请日：2001-12-26

    申请人： Katsuhiko Suzuki ,  Masami Ishikawa ,  Tsuneaki Kawanishi ,  Teruaki Mitsuya ,  Hisao Okada ,  Masayoshi Ishii

    发明人： Katsuhiko Suzuki ,  Masami Ishikawa ,  Tsuneaki Kawanishi ,  Teruaki Mitsuya ,  Hisao Okada ,  Masayoshi Ishii

    IPC分类号： G03G13/09

    CPC分类号： G03G13/09 ,  G03G2215/0609 ,  G03G2215/0648

    摘要： In an image forming method, when viewed from the moving direction of a photosensitive body 1, there is disposed, on the upstream side, a first developing roller 61 opposed to and adjacent to the photosensitive body 1 and rotatable in the opposite direction to the photosensitive body 1, while the peripheral speed ratio of the roller 61 to the photosensitive body 1 ranges from 0.8 to 2.0; on the downstream side of the roller 61, there is disposed a second developing roller 62 rotatable in the same direction to the photosensitive body 1, while the peripheral speed ratio of the roller 62 to the photosensitive body 1 ranges from 1.05 to 2.0; and the shape coefficient SF1 of the toners of two-component developing agent ranges from 120 to 170, while the shape coefficient SF2 ranges from 110 to 130.

    摘要翻译： 在图像形成方法中，当从感光体1的移动方向观察时，在上游侧设置有与感光体1相对并邻近感光体1并可沿与感光体相反的方向旋转的第一显影辊61 而辊61与感光体1的圆周速度比在0.8至2.0的范围内; 在辊61的下游侧，设置有与感光体1相同的方向旋转的第二显影辊62，而辊62与感光体1的圆周速度比范围为1.05〜2.0; 双成分显影剂的调色剂的形状系数SF 1为120〜170，形状系数SF 2为110〜130。

    Image forming electrophotography apparatus and magnetic developing unit
    8.
    发明授权
    Image forming electrophotography apparatus and magnetic developing unit 有权
    图像形成电子照相设备和磁性显影单元

    公开(公告)号：US06487384B2

    公开(公告)日：2002-11-26

    申请号：US09826943

    申请日：2001-04-06

    申请人： Hisao Okada ,  Hiroyuki Mabuchi ,  Teruaki Mitsuya ,  Shinya Kobayashi ,  Yasuo Takuma ,  Masayoshi Ishii ,  Hisayoshi Kato

    发明人： Hisao Okada ,  Hiroyuki Mabuchi ,  Teruaki Mitsuya ,  Shinya Kobayashi ,  Yasuo Takuma ,  Masayoshi Ishii ,  Hisayoshi Kato

    IPC分类号： G03G1509

    CPC分类号： G03G13/013 ,  G03G2215/0174 ,  G03G2215/0495

    摘要： In an image forming apparatus for charging a photosensitive body, changing the light exposure amount in at least three levels at exposure to light, thereby forming an electrostatic image made up of a high-potential part, a low-potential part, and an intermediate-potential part therebetween on the photosensitive body, and normally developing and inversely developing the electrostatic image using toners different in charge polarity for forming two types of toner images on the photosensitive body, a first developer used with a first toner image developing unit has electric resistance changed within 10% in the change range of applied voltage to the developer as the difference between a surface potential of the photosensitive body and a developing bias voltage.

    摘要翻译： 在用于对感光体充电的图像形成装置中，在曝光时将曝光量改变为至少三个等级，从而形成由高电位部分，低电位部分和中间电极部分构成的静电图像， 在感光体上的潜在部分，并且使用不同于电荷极性的调色剂正常显影和反相显影静电图像，以在感光体上形成两种类型的调色剂图像，与第一调色剂图像显影单元一起使用的第一显影剂具有电阻改变 在作为感光体的表面电位与显影偏压之间的差异的显影剂的施加电压的变化范围内的10％以内。

    Liquid crystal display
    9.
    发明授权
    Liquid crystal display 失效
    液晶显示器

    公开(公告)号：US06433765B1

    公开(公告)日：2002-08-13

    申请号：US09580500

    申请日：2000-05-30

    申请人： Kouji Fujiwara ,  Tomohiko Yamamoto ,  Keiichi Tanaka ,  Naoto Inoue ,  Hideki Ichioka ,  Hisao Okada

    发明人： Kouji Fujiwara ,  Tomohiko Yamamoto ,  Keiichi Tanaka ,  Naoto Inoue ,  Hideki Ichioka ,  Hisao Okada

    IPC分类号： G09G336

    CPC分类号： G09G3/3648 ,  G09G3/3655 ,  G09G2320/0223

    摘要： A liquid crystal display in which a reference signal main line, placed so as to connect reference signal lines to each other, is separated into an input main line and an output main line in an insulating state from each other. Then, a voltage application line from a voltage-application circuit for controlling the voltage of a reference signal is connected to the input main line and a voltage feedback line therefrom is connected to the output main line. Thus, it becomes possible to accurately detect minute voltage variations within a reference signal circuit and compensate for them.

    摘要翻译： 其中将参考信号线彼此连接放置的参考信号主线彼此分离成输入主线和绝缘状态的输出主线的液晶显示器。 然后，将来自用于控制参考信号的电压的电压施加电路的电压施加线连接到输入主线，并将其电压反馈线连接到输出主线。 因此，可以精确地检测参考信号电路内的微小电压变化并对其进行补偿。

    Image formation method and image formation apparatus
    10.
    发明授权
    Image formation method and image formation apparatus 失效
    图像形成方法和图像形成装置

    公开(公告)号：US5745818A

    公开(公告)日：1998-04-28

    申请号：US214302

    申请日：1994-03-17

    申请人： Takao Kumasaka ,  Hisao Okada ,  Noboru Tokuyasu ,  Yuzuru Simazaki ,  Susumu Tateyama

    发明人： Takao Kumasaka ,  Hisao Okada ,  Noboru Tokuyasu ,  Yuzuru Simazaki ,  Susumu Tateyama

    IPC分类号： G03G15/01

    CPC分类号： G03G15/0152 ,  G03G15/01 ,  G03G15/0163 ,  G03G2215/0495

    摘要： An image formation method for forming an image of a plurality of colors through a charging step, an image exposing step, a developing step and a transferring step, wherein the image exposing step is made up of a first image exposing step and a second image exposing step, the developing step of at least one color is carried out after the first image exposing step, and in the subsequent second image exposing step, the toner image area formed by the developing step is exposed and charge latent images for forming toner images of the rest of the colors are formed while a potential of the toner image area is selectively shifted.

    摘要翻译： 一种用于通过充电步骤，图像曝光步骤，显影步骤和转印步骤形成多种颜色的图像的图像形成方法，其中所述图像曝光步骤由第一图像曝光步骤和第二图像曝光 在第一图像曝光步骤之后执行至少一种颜色的显影步骤，并且在随后的第二图像曝光步骤中，由显影步骤形成的调色剂图像区域被曝光，并且形成用于形成显影步骤的调色剂图像的电荷潜像 在调色剂图像区域的电位有选择地移动的同时形成其余的颜色。