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：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：US07715748B2

公开(公告)日：2010-05-11

申请号：US11541639

申请日：2006-10-03

申请人： Kyu-cheol Shin ,  Masahiko Itaya ,  Tsutomu Sasaki

发明人： Kyu-cheol Shin ,  Masahiko Itaya ,  Tsutomu Sasaki

IPC分类号： G03G21/00

CPC分类号： G03G15/0898

摘要： An electrophotographic image forming apparatus and a developing method thereof are provided. The electrophotographic image forming apparatus includes an image carrier body on which an electrostatic latent image is formed, a developing roller which faces the image carrier body and supplies toner to the electrostatic latent image formed on the image carrier body, and an anti-toner-dispersion element which faces an outer circumferential surface of the image carrier body between an exposing section where the electrostatic latent image is formed and a developing section where the electrostatic latent image is developed by the developing roller. A collection bias is applied to the anti-toner-dispersion element to collect dispersed toner from the developing roller.

摘要翻译： 提供了一种电照相成像设备及其显影方法。 电子照相图像形成装置包括其上形成有静电潜像的图像载体主体，面向图像载体主体的显影辊，并且向形成在载体主体上的静电潜像提供调色剂，以及抗调色剂分散体 元件，其在形成有静电潜像的曝光部分与静电潜像被显影辊显影的显影部分之间面对图像载体主体的外圆周表面。 将收集偏压施加到抗调色剂分散元件以从显影辊收集分散的调色剂。

公开(公告)号：US20070092288A1

公开(公告)日：2007-04-26

申请号：US11541639

申请日：2006-10-03

申请人： Kyu-cheol Shin ,  Masahiko Itaya ,  Tsutomu Sasaki

发明人： Kyu-cheol Shin ,  Masahiko Itaya ,  Tsutomu Sasaki

IPC分类号： G03G21/00

CPC分类号： G03G15/0898

摘要： An electrophotographic image forming apparatus and a developing method thereof are provided. The electrophotographic image forming apparatus includes an image carrier body on which an electrostatic latent image is formed, a developing roller which faces the image carrier body and supplies toner to the electrostatic latent image formed on the image carrier body, and an anti-toner-dispersion element which faces an outer circumferential surface of the image carrier body between an exposing section where the electrostatic latent image is formed and a developing section where the electrostatic latent image is developed by the developing roller. A collection bias is applied to the anti-toner-dispersion element to collect dispersed toner from the developing roller.

摘要翻译： 提供了一种电照相成像设备及其显影方法。 电子照相图像形成装置包括其上形成有静电潜像的图像载体主体，面向图像载体主体的显影辊，并且向形成在载体主体上的静电潜像提供调色剂，以及抗调色剂分散体 元件，其在形成有静电潜像的曝光部分与静电潜像被显影辊显影的显影部分之间面对图像载体主体的外圆周表面。 将收集偏压施加到抗调色剂分散元件以从显影辊收集分散的调色剂。

公开(公告)号：US20080025738A1

公开(公告)日：2008-01-31

申请号：US11638459

申请日：2006-12-14

申请人： Myung-kook Ahn ,  Kyu-cheol Shin

发明人： Myung-kook Ahn ,  Kyu-cheol Shin

IPC分类号： G03G15/08 ,  G03G15/00

CPC分类号： G03G15/0855 ,  G03G15/5058 ,  G03G2215/00042 ,  G03G2215/0164

摘要： A toner density estimating method for a two-component developer is provided. The toner density estimating method includes: sensing photo-reflectance of a test pattern having a plurality of grayscales formed by using toner; calculating a rate of change of the photo-reflectance according to the grayscales of the test pattern; and estimating a toner density based on the rate of change. Accordingly, it is possible to accurately estimate the toner density irrespective of the influence of changes in temperature, humidity, or other external factors.

摘要翻译： 提供了用于双组分显影剂的调色剂浓度估计方法。 调色剂浓度估计方法包括：检测具有通过使用调色剂形成的多个灰度级的测试图案的光反射率; 根据测试图案的灰度计算光反射率的变化率; 并且基于变化率来估计调色剂浓度。 因此，无论温度，湿度或其他外部因素的变化的影响如何，都可以准确地估计调色剂浓度。

公开(公告)号：US07711277B2

公开(公告)日：2010-05-04

申请号：US11638459

申请日：2006-12-14

申请人： Myung-kook Ahn ,  Kyu-cheol Shin

发明人： Myung-kook Ahn ,  Kyu-cheol Shin

IPC分类号： G03G15/00

CPC分类号： G03G15/0855 ,  G03G15/5058 ,  G03G2215/00042 ,  G03G2215/0164

摘要： A toner density estimating method for a two-component developer is provided. The toner density estimating method includes: sensing photo-reflectance of a test pattern having a plurality of grayscales formed by using toner; calculating a rate of change of the photo-reflectance according to the grayscales of the test pattern; and estimating a toner density based on the rate of change. Accordingly, it is possible to accurately estimate the toner density irrespective of the influence of changes in temperature, humidity, or other external factors.

摘要翻译： 提供了用于双组分显影剂的调色剂浓度估计方法。 调色剂浓度估计方法包括：检测具有通过使用调色剂形成的多个灰度级的测试图案的光反射率; 根据测试图案的灰度计算光反射率的变化率; 并且基于变化率来估计调色剂浓度。 因此，无论温度，湿度或其他外部因素的变化的影响如何，都可以准确地估计调色剂浓度。

公开(公告)号：US07058333B2

公开(公告)日：2006-06-06

申请号：US10706959

申请日：2003-11-14

申请人： Kyu-cheol Shin

发明人： Kyu-cheol Shin

IPC分类号： G03G15/00

CPC分类号： G03G15/80 ,  G03G15/01 ,  G03G15/5004 ,  G03G2215/0119

摘要： A color image forming apparatus which, in a sequential order for each of plural colors of a composite color image, charges plural photosensitive bodies, exposes electrostatic latent images on the plural photosensitive bodies, develops latent images on the photosensitive bodies into color images, and transfers the color images to sequentially form images of each of the plural colors one on another to form the composite color image and transcribing the composite color image onto a printing medium. The color image forming apparatus includes: plural charging units which perform the charging process for each of the plural colors; plural exposing units which perform the exposing process for each of the plural colors; plural developing units which perform the developing process for each of the plural colors; and plural transfer units which perform the transfer process for each of the plural colors.

摘要翻译： 一种彩色图像形成装置，其以复合彩色图像的多种颜色中的每一种的顺序顺序对多个感光体进行充电，在多个感光体上曝光静电潜像，将感光体上的潜像显影为彩色图像，并且传送 彩色图像顺序地形成多个颜色中的每一个的图像，以形成复合彩色图像，并将复合彩色图像转录到打印介质上。 彩色图像形成装置包括：对多种颜色中的每一种进行充电处理的多个充电单元; 对多种颜色中的每一种进行曝光处理的多个曝光单元; 对多种颜色中的每一种执行显影处理的多个显影单元; 以及对多种颜色中的每一种进行转印处理的多个转印单元。