利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

72 条记录 (耗时 0.039 秒)

    Image forming apparatus having developing device with magnet roller with particular magnetic flux density
    11.
    发明授权
    Image forming apparatus having developing device with magnet roller with particular magnetic flux density 有权
    具有具有特定磁通密度的磁辊的显影装置的图像形成装置

    公开(公告)号：US06671484B2

    公开(公告)日：2003-12-30

    申请号：US09945839

    申请日：2001-09-05

    申请人： Yasuo Miyoshi ,  Tsukuru Kai

    发明人： Yasuo Miyoshi ,  Tsukuru Kai

    IPC分类号： G03G1509

    CPC分类号： G03G15/0921 ,  G03G2215/0177

    摘要： An image forming apparatus of the present invention includes a developing device of the type causing a developer to form a magnet brush on the surface of a developer carrier having a magnet roller in a developing region or nip for development. The magnet brush contacts and thereby develops a latent image formed on an image carrier. The magnet roller has a main magnetic pole for development wherein the flux density in the tangential direction has a maximum variation ratio of 40 T/m or above in absolute value. The apparatus of the present invention increases image density and faithfully reproduces even low-contrast images with a low-cost configuration. Further, the apparatus reduces image defects, including granularity and the omission of the trailing edge of an image, even if the range over which the magnet brush and image carrier contact is reduced.

    摘要翻译： 本发明的图像形成装置包括一种使显影剂在显影剂载体的表面上形成磁刷的类型的显影装置，该显影剂载体具有用于显影的显影区或辊隙中的磁辊。 磁刷接触，从而形成在图像载体上形成的潜像。 磁辊具有用于显影的主磁极，其中切向方向上的磁通密度具有绝对值为40T / m以上的最大变化比。 本发明的装置增加图像密度，并忠实地再现具有低成本配置的均匀的低对比度图像。 此外，即使磁刷和图像载体接触的范围减小，该装置减少图像的图像缺陷，包括图像的后沿的粒度和省略。

    Image forming apparatus
    12.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US06901233B2

    公开(公告)日：2005-05-31

    申请号：US10732482

    申请日：2003-12-11

    申请人： Katsuhiro Aoki ,  Tsukuru Kai ,  Hajime Oyama ,  Osamu Ariizumi ,  Hisashi Shoji ,  Takashi Hodoshima ,  Yasuo Miyoshi

    发明人： Katsuhiro Aoki ,  Tsukuru Kai ,  Hajime Oyama ,  Osamu Ariizumi ,  Hisashi Shoji ,  Takashi Hodoshima ,  Yasuo Miyoshi

    IPC分类号： G03G15/06 ,  G03G15/09

    CPC分类号： G03G15/0907 ,  G03G15/065 ,  G03G2215/0177

    摘要： An image forming apparatus of the present invention includes a bias power supply for applying a bias VB to a developer carrier on which a developer is deposited. A charge potential deposited on an image carrier, which faces the developer carrier for forming a latent image thereon, is 400 V or below in absolute value. Assume that the potential of the image carrier is lowered to VL after exposure, that a development potential is |VB−VL|, that the maximum set value of the development potential for development is |VB−VL|max, and that the development potential varies in a range satisfying relations: |VB−VL|≦|VB−VL|max+|VB−VL|max×0.2 |VB−VL|≧|VB−VL|max−|VB−VL|max×0.2 |VB−VL|max≦300 V Then image density varies by a width of 10% of image density corresponding to the maximum set value of the development potential or less.

    摘要翻译： 本发明的图像形成装置包括偏置电源，用于将偏压V B B施加到其上沉积显影剂的显影剂载体上。 沉积在图像载体上的电荷电位，其面向用于在其上形成潜像的显影剂载体，其绝对值为400V或更低。 假设曝光后图像载体的电位降低到V L，则显影电位为| V B -V L | L， 开发发展潜力的最大设定值为| V | B | | | | | | | |，并且显影电位在满足关系的范围内变化：<？ -line-formula description =“In-line Formulas”end =“lead”？> | V ＆lt;＆lt;＆lt;＆lt; L＆gt; | max + | V B＆lt; 行公式“end =”tail“？> <？in-line-formula description =”In-line Formulas“end =”lead“？> | V B B> | B | B || V | B | B || B ||||||||,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, .2 <？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> | V B L max <= 300 V <？in-line-formula description =“In-line Formulas”end =“tail”？>然后，图像浓度因 宽度为10％o f图像浓度对应于开发潜力的最大设定值以下。

    Development method apparatus, image formation and process cartridge for suppressing variation in toner charge
    13.
    发明授权
    Development method apparatus, image formation and process cartridge for suppressing variation in toner charge 有权
    用于抑制调色剂电荷变化的显影方法装置，图像形成和处理盒

    公开(公告)号：US06658227B2

    公开(公告)日：2003-12-02

    申请号：US10188756

    申请日：2002-07-05

    申请人： Hajime Oyama ,  Tsukuru Kai ,  Katsuhiro Aoki ,  Takashi Hodoshima ,  Yasuo Miyoshi ,  Ichiro Kadota

    发明人： Hajime Oyama ,  Tsukuru Kai ,  Katsuhiro Aoki ,  Takashi Hodoshima ,  Yasuo Miyoshi ,  Ichiro Kadota

    IPC分类号： G03F1508

    CPC分类号： G03G13/08 ,  G03G2215/0636

    摘要： The development is performed under a condition that |Q2|−|Q1|/|Q1≦±0.45. Here, Q1 denotes an average amount of charge on toner held on a development roller and carried toward a development region immediately before development. Q2 denotes an average amount of charge on toner immediately before development held and carried toward the development region in the state immediately after development of an electrostatic latent image on a development drum. This is effective to allow the amount of charge q/m on toner held on the development roller to have a variation rate of 45% or below and an afterimage rate R within 2%.

    摘要翻译： 在| Q2 | - | Q1 | / | Q1 <=±0.45的条件下进行显影。 这里，Q1表示保持在显影辊上的调色剂上的平均充电量，并且紧靠显影前的显影区域携带。 Q2表示紧接在显影鼓上的静电潜像显影后立即显影状态下保持并承载于显影区域的调色剂上的平均电荷量。 这有助于使显影辊上保持的调色剂上的电荷量q / m具有45％以下的变化率和2％以内的残像率R。

    Image forming apparatus and an image forming process unit
    14.
    发明授权
    Image forming apparatus and an image forming process unit 有权
    图像形成装置和图像形成处理单元

    公开(公告)号：US06505014B2

    公开(公告)日：2003-01-07

    申请号：US09964794

    申请日：2001-09-28

    申请人： Katsuhiro Aoki ,  Hisashi Shoji ,  Tsukuru Kai ,  Hajime Oyama ,  Noriyoshi Tarumi ,  Takashi Hodoshima ,  Yasuo Miyoshi

    发明人： Katsuhiro Aoki ,  Hisashi Shoji ,  Tsukuru Kai ,  Hajime Oyama ,  Noriyoshi Tarumi ,  Takashi Hodoshima ,  Yasuo Miyoshi

    IPC分类号： G03G1506

    CPC分类号： G03G15/065 ,  G03G13/08

    摘要： An image forming apparatus of the present invention includes an image carrier made up of a conductive base and photoconductive layer and a toner carrier to which a bias for development is applied. The toner carrier conveys toner deposited thereon to a developing position where the toner carrier faces the image carrier, thereby developing a latent image formed on the image carrier. The apparatus effects low-voltage development that protects the image carrier from electrostatic fatigue, obviates background contamination, and realizes image density as high as 0.5 ×10−3 g/cm2 or above in terms of the amount of toner deposition. Further, the apparatus implements faithful development of the latent image by reducing the edge effect. An image forming process unit removable from the apparatus is also disclosed.

    摘要翻译： 本发明的图像形成装置包括由导电基底和光电导层构成的图像载体和施加偏压的调色剂载体。 调色剂载体将沉积在其上的调色剂输送到显影位置，在该显影位置调色剂载体面向图像载体，从而显影形成在图像载体上的潜像。 该装置实现低电压显影，其保护图像载体免受静电疲劳，消除背景污染，并且根据调色剂沉积量实现高达0.5×10 -3 g / cm 2或更高的图像密度。 此外，该装置通过减少边缘效应来实现潜像的忠实发展。 还公开了可从该装置移除的图像形成处理单元。

    POWDER CONTAINER AND IMAGE FORMING APPARATUS
    16.
    发明申请
    POWDER CONTAINER AND IMAGE FORMING APPARATUS 有权
    粉末容器和图像形成装置

    公开(公告)号：US20150338775A1

    公开(公告)日：2015-11-26

    申请号：US14558466

    申请日：2013-06-03

    申请人： Hiroshi HOSOKAWA ,  Tsukuru KAI ,  Junichi MATSUMOTO ,  Makoto KOMATSU ,  Tadashi HAYAKAWA ,  Yuzuru OZAWA ,  Shinji TAMAKI ,  Kenji KIKUCHI

    发明人： Hiroshi Hosokawa ,  Tsukuru Kai ,  Junichi Matsumoto ,  Makoto Komatsu ,  Tadashi Hayakawa ,  Yuzuru Ozawa ,  Shinji Tamaki ,  Kenji Kikuchi

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0886 ,  G03G15/0867 ,  G03G15/0868 ,  G03G15/0872 ,  G03G2215/0132

    摘要： The powder container includes a container body containing a powder for image formation, the powder being to be supplied to a powder replenishing device; a conveyor configured to convey the powder from one end in a longitudinal direction to the other end at which a cylindrical container opening is formed, the conveyor being provided inside the container body; a gear configured to rotate the conveyor with an external driving force; a container cover configured to cover the gear, the container cover having a gear exposing hole for partially exposing a gear tooth; and a nozzle receiver configured to guide the conveying nozzle inside of the container body, the nozzle receiver being provided on the container opening. The container cover includes a container engaged portion provided outer than the tooth of the gear in a radial direction.

    摘要翻译： 该粉末容器包括容纳体，该容器主体包含用于成像的粉末，该粉末将被供给至粉末补充装置; 输送机，其构造成将粉末从纵向方向的一端输送到形成有圆筒形容器开口的另一端，所述输送机设置在所述容器主体的内部; 配置成用外部驱动力旋转输送机的齿轮; 容纳盖，其构造成覆盖所述齿轮，所述容器盖具有用于部分地暴露齿轮齿的齿轮暴露孔; 以及喷嘴接收器，其构造成将所述输送喷嘴引导到所述容器主体内部，所述喷嘴接收器设置在所述容器开口上。 容器盖包括在径向方向上设置在齿轮的齿外部的容器接合部分。

    Powder container and image forming apparatus incorporating same
    19.
    发明授权
    Powder container and image forming apparatus incorporating same 有权
    粉末容器和包含其的图像形成装置

    公开(公告)号：US09244379B2

    公开(公告)日：2016-01-26

    申请号：US13903507

    申请日：2013-05-28

    申请人： Junichi Matsumoto ,  Tsukuru Kai ,  Hiroshi Hosokawa ,  Yuzuru Ozawa ,  Tadashi Hayakawa ,  Makoto Komatsu

    发明人： Junichi Matsumoto ,  Tsukuru Kai ,  Hiroshi Hosokawa ,  Yuzuru Ozawa ,  Tadashi Hayakawa ,  Makoto Komatsu

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0839 ,  G03G15/0865 ,  G03G15/0877 ,  G03G15/0879 ,  G03G15/0886 ,  G03G15/0889

    摘要： A powder container includes a container body to accommodate powder for image forming therein, the container body including an outlet at a bottom thereof through which the powder is supplied to a powder supply device and being detachably attachable to an image forming apparatus, a rotary member, an agitator supported by the rotary member, and a powder receiver to guide a transport tube transporting the powder in the container body into the container body. The powder receiver includes a nozzle receiver opening, an opening-closing member to open and close the nozzle receiver, a container-side biasing member to bias the opening-closing member to close, a container opening-closing member supporter, a step and an end portion to contact first and second contact surfaces of the powder container receiver due to a restorative force of the container-side biasing member upon attachment of the powder container to the powder supply device.

    摘要翻译： 粉末容器包括：容纳体，用于容纳其中形成图像的粉末，所述容器主体包括在其底部的出口，粉末通过所述容器供给到粉末供应装置，并且可拆卸地附接到图像形成装置，旋转构件， 由旋转构件支撑的搅拌器和用于引导将容器主体中的粉末输送到容器主体中的输送管的粉末接收器。 粉末接收器包括喷嘴接收器开口，用于打开和关闭喷嘴接收器的打开 - 关闭部件，用于偏压打开 - 关闭部件关闭的容器侧偏压部件，容器开闭部件支撑件，台阶和 端部，由于在将粉末容器附接到粉末供应装置时由于容器侧偏置构件的恢复力而与粉末容器接收器的第一和第二接触表面接触。