公开(公告)号：US20060222416A1

公开(公告)日：2006-10-05

申请号：US11297354

申请日：2005-12-09

申请人： Naonori Kurogawa ,  Masahiko Itaya ,  Kyu-Cheol Shin ,  Tsutomu Teraoka ,  Tsutomu Sasaki ,  Myung-Kook Ahn

发明人： Naonori Kurogawa ,  Masahiko Itaya ,  Kyu-Cheol Shin ,  Tsutomu Teraoka ,  Tsutomu Sasaki ,  Myung-Kook Ahn

IPC分类号： G03G15/09

CPC分类号： G03G15/0907

摘要： An electrophotographic image forming device is provided which includes an image holder on which an electrostatic latent image is formed. A magnetic roller has a magnetic brush including nonmagnetic toner and a magnetic carrier using a magnetic force. Donor rollers are provided which have toner layers that are received from the magnetic roller on an outer circumference of each of the donor rollers. The donor rollers are located opposite to the image holder to develop the toner onto the electrostatic latent image.

公开(公告)号：US07519318B2

公开(公告)日：2009-04-14

申请号：US11297354

申请日：2005-12-09

申请人： Naonori Kurogawa ,  Masahiko Itaya ,  Kyu-Cheol Shin ,  Tsutomu Teraoka ,  Tsutomu Sasaki ,  Myung-Kook Ahn

发明人： Naonori Kurogawa ,  Masahiko Itaya ,  Kyu-Cheol Shin ,  Tsutomu Teraoka ,  Tsutomu Sasaki ,  Myung-Kook Ahn

IPC分类号： G03G15/09

CPC分类号： G03G15/0907

摘要： An electrophotographic image forming device is provided which includes an image holder on which an electrostatic latent image is formed. A magnetic roller has a magnetic brush including nonmagnetic toner and a magnetic carrier using a magnetic force. Donor rollers are provided which have toner layers that are received from the magnetic roller on an outer circumference of each of the donor rollers. The donor rollers are located opposite to the image holder to develop the toner onto the electrostatic latent image.

摘要翻译： 提供一种电子照相图像形成装置，其包括其上形成有静电潜像的图像保持器。 磁性辊具有包括非磁性调色剂的磁刷和使用磁力的磁性载体。 提供给体辊，其具有在每个供体辊的外周上从磁性辊接收的调色剂层。 供体辊位于与图像保持器相对的位置，以将调色剂显影在静电潜像上。

公开(公告)号：US20060222390A1

公开(公告)日：2006-10-05

申请号：US11342632

申请日：2006-01-31

申请人： Tsutomu Sasaki ,  Kyu-cheol Shin ,  Myung-kook Ahn ,  Masahiko Itaya ,  Tsutomu Teraoka ,  Naonori Kurogawa

发明人： Tsutomu Sasaki ,  Kyu-cheol Shin ,  Myung-kook Ahn ,  Masahiko Itaya ,  Tsutomu Teraoka ,  Naonori Kurogawa

IPC分类号： G03G15/09

CPC分类号： G03G15/065 ,  G03G2215/0607

摘要： Provided is an image forming device performing hybrid development that uses magnetic carriers and nonmagnetic carriers. An electrical potential of a non-image portion on an image holder and an electrical potential of a direct current component of a developing bias voltage applied to a developing roller are determined so that a difference between the electrical potentials are less than or equal to a value at which a developing rate of the non-image portion is saturated.

摘要翻译： 提供一种进行使用磁性载体和非磁性载体的混合显影的图像形成装置。 确定图像保持器上的非图像部分的电位和施加到显影辊的显影偏压的直流分量的电位，使得电位差之间的差小于或等于值 非图像部分的显影速率饱和。

公开(公告)号：US07489893B2

公开(公告)日：2009-02-10

申请号：US11441054

申请日：2006-05-26

申请人： Tsutomu Teraoka ,  Masahiko Itaya ,  Kyu-cheol Shin ,  Tsutomu Sasaki ,  Myung-kook Ahn ,  Naonori Kurogawa

发明人： Tsutomu Teraoka ,  Masahiko Itaya ,  Kyu-cheol Shin ,  Tsutomu Sasaki ,  Myung-kook Ahn ,  Naonori Kurogawa

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0815 ,  G03G2215/0609

摘要： A hybrid type developing apparatus and method forms a magnetic brush of non-magnetic toner and a magnetic carrier on a circumference of a magnetic roller forms a uniform toner layer on the circumference of a donor roller using only toner from the magnetic roller, and develops an electrostatic latent image on an image receptor. The hybrid type developing apparatus includes: a plurality of electrodes on the circumference of the donor roller; first and second brush electrodes in an upstream area and a downstream area, respectively, of the donor roller facing the magnetic roller with respect to a direction of rotation; and a bias applying device for applying a recovery bias to the first brush electrode to remove toner from the donor roller and a supply bias to the second brush electrode to supply toner from the magnetic roller to the donor roller.

摘要翻译： 在磁性辊的圆周上形成非磁性调色剂的磁刷和磁性载体的混合型显影装置和方法在仅使用来自磁辊的调色剂的供体辊的圆周上形成均匀的调色剂层，并形成 图像受体上的静电潜像。 混合型显影装置包括：供体辊圆周上的多个电极; 供体辊分别相对于旋转方向面向磁性辊的上游区域和下游区域中的第一和第二刷电极; 以及偏置施加装置，用于向第一刷电极施加恢复偏压以从供体辊中除去调色剂，并向第二刷电极提供偏压，以将调色剂从磁辊供给到供体辊。

公开(公告)号：US20070019995A1

公开(公告)日：2007-01-25

申请号：US11441054

申请日：2006-05-26

申请人： Tsutomu Teraoka ,  Masahiko Itaya ,  Kyu-cheol Shin ,  Tsutomu Sasaki ,  Myung-kook Ahn ,  Naonori Kurogawa

发明人： Tsutomu Teraoka ,  Masahiko Itaya ,  Kyu-cheol Shin ,  Tsutomu Sasaki ,  Myung-kook Ahn ,  Naonori Kurogawa

IPC分类号： G03G15/08

CPC分类号： G03G15/0815 ,  G03G2215/0609

摘要： There are provided a hybrid type developing apparatus and method. There is provided a hybrid type developing apparatus which forms a magnetic brush comprised of non-magnetic toner and a magnetic carrier on a circumference of a magnetic roller using a magnetic force, forms a uniform toner layer on the circumference of a roller by providing only toner from the magnetic roller to the donor roller, and develops an electrostatic latent image on an image receptor with the toner on the donor roller, the hybrid type developing apparatus comprising: a plurality of electrodes arrayed on the circumference of the donor roller; first and second brush electrodes located in an upstream area and a downstream area, respectively, of an area of the donor roller facing the magnetic roller, contacting some of the electrodes, wherein the upstream area and the downstream area are an upstream and a downstream of the rotation of the donor roller; and a bias applying device for applying a recovery bias to the first brush electrode to remove toner from the donor roller and a supply bias to the second brush electrode to supply toner from the magnetic roller to the donor roller.

摘要翻译： 提供了混合型显影装置和方法。 提供了一种混合型显影装置，其使用磁力在磁性辊的圆周上形成由非磁性调色剂和磁性载体构成的磁刷，通过仅提供调色剂在辊的圆周上形成均匀的调色剂层 从所述磁性辊到所述供体辊，并且在所述供体辊上的所述调色剂的图像接收器上形成静电潜像，所述混合型显影装置包括：排列在所述供体辊的圆周上的多个电极; 第一和第二刷电极分别位于供体辊的面向磁辊的区域的上游区域和下游区域中，与一些电极接触，其中上游区域和下游区域是上游区域和下游区域 供体辊的旋转; 以及偏置施加装置，用于向第一刷电极施加恢复偏压以从供体辊中除去调色剂，并向第二刷电极提供偏压，以将调色剂从磁辊供给到供体辊。

公开(公告)号：US20060280525A1

公开(公告)日：2006-12-14

申请号：US11356085

申请日：2006-02-17

申请人： Kyu-Cheol Shin ,  Myung-Kook Ahn ,  Masahiko Itaya ,  Tsutomu Teraoka ,  Tsutomu Sasaki ,  Naonori Kurogawa

发明人： Kyu-Cheol Shin ,  Myung-Kook Ahn ,  Masahiko Itaya ,  Tsutomu Teraoka ,  Tsutomu Sasaki ,  Naonori Kurogawa

IPC分类号： G03G15/01

CPC分类号： G03G15/0121 ,  G03G15/0131 ,  G03G2215/0119 ,  G03G2215/0158 ,  G03G2215/0624

摘要： An electrophotographic image forming apparatus is provided which includes a first developing unit which forms a monochrome image in a two-component development method and includes a photosensitive medium on which an electrostatic latent image is formed by a first exposure unit. Additionally, a plurality of second developing units are provided which form a color image in a one-component development method and include a photosensitive medium on which an electrostatic latent image is formed by a second exposure unit. A control unit generates control signals to independently control the operations of the first and second exposure units and the first and second developing units.

摘要翻译： 提供一种电子照相图像形成装置，其包括以双组分显影方法形成单色图像的第一显影单元，并且包括其上由第一曝光单元形成静电潜像的感光介质。 此外，提供多个第二显影单元，其以单组分显影方法形成彩色图像，并且包括其上由第二曝光单元形成静电潜像的感光介质。 控制单元产生控制信号以独立地控制第一和第二曝光单元以及第一和第二显影单元的操作。

公开(公告)号：US20070014593A1

公开(公告)日：2007-01-18

申请号：US11439232

申请日：2006-05-24

申请人： Naonori Kurogawa ,  Masahiko Itaya ,  Kyu-cheol Shin ,  Tsutomu Teraoka ,  Tsutomu Sasaki ,  Myung-kook Ahn

发明人： Naonori Kurogawa ,  Masahiko Itaya ,  Kyu-cheol Shin ,  Tsutomu Teraoka ,  Tsutomu Sasaki ,  Myung-kook Ahn

IPC分类号： G03G15/08

CPC分类号： G03G15/0907 ,  G03G2215/0643

摘要： An electrophotographic image forming apparatus includes: an image receptor on which an electrostatic latent image is formed; a magnetic roller for forming a magnetic brush having a non-magnetic toner and a magnetic carrier by magnetic force; a donor roller facing the image receptor and receiving a toner from the magnetic roller to form a toner layer on an outer circumference thereof; bias applying device for applying a bias voltage to the donor roller to develop the electrostatic latent image by supplying the toner from the toner layer; and toner removing device which contacts the donor roller and removes at least a portion of the toner layer from a surface of the donor roller after developing. A method of developing the latent image on the image receptor is provided by the apparatus.

摘要翻译： 电子照相图像形成装置包括：形成有静电潜像的图像接收器; 用于通过磁力形成具有非磁性调色剂和磁性载体的磁刷的磁性辊; 供体辊面对图像接收器并从磁性辊接收调色剂以在其外周上形成调色剂层; 偏置施加装置，用于通过从调色剂层供应调色剂来向供体辊施加偏压以显影静电潜像; 以及调色剂去除装置，其与供体辊接触并在显影后从供体辊的表面去除调色剂层的至少一部分。 通过该装置提供了在图像接收器上显影潜像的方法。

公开(公告)号：US20070003328A1

公开(公告)日：2007-01-04

申请号：US11439255

申请日：2006-05-24

申请人： Naonori Kurogawa ,  Masahiko Itaya ,  Kyu-cheol Shin ,  Tsutomu Teraoka ,  Tsutomu Sasaki ,  Myung-kook Ahn

发明人： Naonori Kurogawa ,  Masahiko Itaya ,  Kyu-cheol Shin ,  Tsutomu Teraoka ,  Tsutomu Sasaki ,  Myung-kook Ahn

IPC分类号： G03G15/08

CPC分类号： G03G15/0907 ,  G03G2215/0643

摘要： A hybrid type developing apparatus of an electrophotographic image forming apparatus includes: an image receptor on which an electrostatic latent image is formed; a magnetic roller for forming a magnetic brush of non-magnetic toner and magnetic carrier by using magnetic force; a donor roller which faces the image receptor and has a circumference for supporting a toner layer formed by receiving toner from the magnetic roller; a bias voltage applying device for applying a development bias voltage to the donor roller to develop toner of the toner layer to the electrostatic latent image; an electrode positioned at an upstream side at a point closest and most adjacent position between the donor roller and the image receptor and at a downstream side at a point closest and most adjacent position between the donor roller and the magnetic roller and an applied bias voltage of weakening adhesive force of the toner layer to the donor roller and cohesive force of toner to each other.

摘要翻译： 一种电子照相成像装置的混合型显影装置，包括：形成有静电潜像的图像接收器; 用于通过使用磁力形成非磁性调色剂和磁性载体的磁刷的磁性辊; 供体辊，其面向图像接收器并且具有用于支撑通过从该磁辊接收调色剂而形成的调色剂层的圆周; 偏置电压施加装置，用于向施主辊施加显影偏压，以将调色剂层的调色剂显影到静电潜像; 位于供体辊和图像接收点之间的最靠近和最相邻位置处的上游侧的电极，以及位于施主辊和磁性辊之间的最接近和最相邻位置处的下游侧的电极和施加的偏置电压 调色剂层对供体辊的粘合力降低，并且调色剂的粘合力彼此减弱。

公开(公告)号：US06897002B2

公开(公告)日：2005-05-24

申请号：US10393941

申请日：2003-03-24

申请人： Tsutomu Teraoka ,  Tsutomu Sasaki ,  Tsuneo Kurotori ,  Masahiko Itaya

发明人： Tsutomu Teraoka ,  Tsutomu Sasaki ,  Tsuneo Kurotori ,  Masahiko Itaya

IPC分类号： G03G9/12 ,  G03G9/125

CPC分类号： G03G9/125 ,  G03G9/12

摘要： A liquid developer which includes an insulating liquid, and toner fine particles containing a coloring agent and a toner resin. In the liquid developer, its electric capacitance does not significantly vary in an electric circuit where an electrical double-layer capacitor and an electronic resistance corresponding to a velocity of an electron exchange during an electrode reaction are connected in parallel, and a resistance corresponding to an electric conductivity of the insulating liquid is connected in series. The coloring agent has a coating layer so as to maintain distances between the toner fine particles. The insulating liquid has a viscosity of 0.5 mPa·s to 1000 mPa·s, a specific resistance of 1×1012 Ωcm or more, and a surface tension of 30 dyn/cm or less, and may be a nonvolatile liquid having a boiling point of 100° C. or higher.

摘要翻译： 包含绝缘液体的液体显影剂和含有着色剂和调色剂树脂的调色剂微粒。 在液体显影剂中，在电双极电容器和对应于电极反应期间的电子交换速度的电子电阻并联连接的电路中，其电容量并不显着变化， 绝缘液体的导电性串联连接。 着色剂具有涂层以便保持调色剂微粒之间的距离。 绝缘液体的粘度为0.5mPa.s至1000mPa.s，电阻率为1×10 12Ω或更大，表面张力为30dyn / cm或更小，并且可以是 沸点为100℃以上的非挥发性液体。

公开(公告)号：US07141346B2

公开(公告)日：2006-11-28

申请号：US10803952

申请日：2004-03-19

申请人： Tsutomu Teraoka ,  Tsutomu Sasaki ,  Tsuneo Kurotori ,  Masahiko Itaya

发明人： Tsutomu Teraoka ,  Tsutomu Sasaki ,  Tsuneo Kurotori ,  Masahiko Itaya

IPC分类号： G03G9/135

CPC分类号： G03G9/135 ,  G03G9/125 ,  G03G9/133 ,  G03G9/1355

摘要： A liquid developer capable of preventing each of the disadvantages of uneven development density caused by uneven distribution of colored particles, poor transfer due to an insufficient amount of the liquid, and poor fixing due to an excess amount of the liquid, without complicating handling with the generation of volatile gas. Present on the surface of toner particles to be dispersed in a carrier liquid made of dimethyl silicone are a silicone group of one-end methacryloxy-modified silicone and a basic group. The silicone group prevents agglutination of the toner particles with each other. The silicone group functions as an affinity group and provides the toner particles with an affinity to the carrier liquid. Thus, it becomes possible to disperse the toner particles uniformly in the carrier liquid. Besides, the basic group on the surface of toner particles allows the toner particles to ensure the desired charge amount. Therefore, colored particles such as the toner particles hardly agglutinate with each other in a nonpolar insulating liquid to be provided as a nonaqueous solvent, while the colored particles can be electrophoresed at high speed by an electric field.

摘要翻译： 一种液体显影剂，其能够防止由着色颗粒分布不均匀引起的不均匀显影密度的缺点，由于液体量不足导致的差的转印，以及由于液体过量而导致的不良固定，而不会使 产生挥发性气体。 存在于分散在由二甲基硅酮制成的载体液体中的调色剂颗粒的表面上的是一端甲基丙烯酰氧基改性的硅氧烷和碱性基团的硅氧烷基团。 硅氧烷基防止调色剂颗粒彼此凝集。 硅氧烷基团用作亲和基团，并且使载体液体具有亲和性的调色剂颗粒。 因此，可以将调色剂颗粒均匀地分散在载体液体中。 此外，调色剂颗粒表面上的基本组允许调色剂颗粒确保所需的电荷量。 因此，着色颗粒如调色剂颗粒在非极性绝缘液体中难以彼此凝集，作为非水溶剂提供，而着色颗粒可以通过电场高速电泳。