公开(公告)号：US07639957B2

公开(公告)日：2009-12-29

申请号：US11738342

申请日：2007-04-20

申请人： Shinji Kato ,  Koji Suzuki ,  Yasushi Koichi ,  Shigekazu Enoki ,  Wakako Murakami ,  Kumiko Hatakeyama

发明人： Shinji Kato ,  Koji Suzuki ,  Yasushi Koichi ,  Shigekazu Enoki ,  Wakako Murakami ,  Kumiko Hatakeyama

IPC分类号： G03G15/08

CPC分类号： G03G15/0844 ,  G03G15/0853 ,  G03G15/0893 ,  G03G15/5058

摘要： An image forming apparatus includes an image carrier, a developing unit, a concentration sensor, a toner supplying unit, a developer supplying unit, an ejector, and a condition detector. The image carrier forms a latent image thereon. The developing unit develops the latent image formed on the image carrier with a two-component image developer including toner particles and carrier particles. The concentration sensor detects a toner ratio in the developing unit. The toner supplying unit supplies fresh toner particles to the developing unit. The developer supplying unit supplies fresh image developer to the developing unit. The ejector ejects the image developer to an outside of the developing unit. The condition detector detects a condition of the image developer used for an image forming operation to determine a supply amount of the image developer to supply to the developing unit. The condition includes a degradation level of the image developer.

摘要翻译： 图像形成装置包括图像载体，显影单元，浓度传感器，调色剂供给单元，显影剂供给单元，喷射器和条件检测器。 图像载体在其上形成潜像。 显影单元用包含调色剂颗粒和载体颗粒的双组分图像显影剂显影在图像载体上形成的潜像。 浓度传感器检测显影单元中的调色剂比。 调色剂供应单元向显影单元供应新鲜的调色剂颗粒。 显影剂供应单元向显影单元提供新鲜图像显影剂。 喷射器将图像显影剂喷射到显影单元的外部。 条件检测器检测用于图像形成操作的图像显影剂的状态，以确定供应给显影单元的图像显影剂的供给量。 该条件包括图像显影剂的劣化水平。

公开(公告)号：US07499664B2

公开(公告)日：2009-03-03

申请号：US11018760

申请日：2004-12-22

申请人： Yasushi Koichi ,  Koji Suzuki ,  Shigekazu Enoki ,  Osamu Ariizumi ,  Kumiko Hatakeyama

发明人： Yasushi Koichi ,  Koji Suzuki ,  Shigekazu Enoki ,  Osamu Ariizumi ,  Kumiko Hatakeyama

IPC分类号： G03G15/30

CPC分类号： G03G21/0029 ,  G03G2221/183

摘要： A transfer residual toner that has not been electrostatically transferred onto a transfer paper P at a transfer nip and remains on a surface of a photosensitive element is temporarily retained by an elastic blade of a toner retaining unit in a mechanical manner before reaching a latent image forming area. When passing through the latent image forming area, the transfer residual toner is returned onto the surface of the photosensitive member at such a timing that writing is not performed by an exposing unit on the surface of the photosensitive element.

摘要翻译： 没有静电转印到转印纸上的转印残留调色剂，并保持在感光元件的表面上，在达到潜像形成之前，机械地由调色剂保持单元的弹性刮刀暂时保留 区。 当通过潜像形成区域时，转印残留调色剂在感光元件表面上的曝光单元不进行写入的时刻返回到感光部件的表面上。

公开(公告)号：US20070286652A1

公开(公告)日：2007-12-13

申请号：US11832848

申请日：2007-08-02

申请人： Koji SUZUKI ,  Mitsuo Aoki ,  Bing Shu ,  Yasushi Koichi ,  Setsuo Soga ,  Tadashi Kasai ,  Yutaka Takahashi

发明人： Koji SUZUKI ,  Mitsuo Aoki ,  Bing Shu ,  Yasushi Koichi ,  Setsuo Soga ,  Tadashi Kasai ,  Yutaka Takahashi

IPC分类号： G03G15/20

CPC分类号： G03G15/5041 ,  G03G15/00 ,  G03G2215/00033 ,  G03G2215/00071 ,  G03G2215/0602

摘要： An image forming apparatus comprising: a latent image support for supporting a latent image and a developing device configured to us toner to develop the latent image on said latent image support, the estimated average halftone granularity of the toner imager after developing being 0.25 or less.

摘要翻译： 一种图像形成装置，包括：用于支撑潜像的潜像支持体和构造成使所述潜像载体上的潜像显影调色剂的显影装置，显影后的调色剂成像器的估计平均半色调粒度为0.25以下。

公开(公告)号：US20060275688A1

公开(公告)日：2006-12-07

申请号：US11503152

申请日：2006-08-14

申请人： Koji Suzuki ,  Mitsuo Aoki ,  Bing Shu ,  Yasushi Koichi ,  Setsuo Soga ,  Tadashi Kasai ,  Yutaka Takahashi

发明人： Koji Suzuki ,  Mitsuo Aoki ,  Bing Shu ,  Yasushi Koichi ,  Setsuo Soga ,  Tadashi Kasai ,  Yutaka Takahashi

IPC分类号： G03G13/20

CPC分类号： G03G15/5041 ,  G03G15/00 ,  G03G2215/00033 ,  G03G2215/00071 ,  G03G2215/0602

摘要： An electrophotographic image forming apparatus capable of reliably forming an image with density gradation, one which does not have a low-quality appearance. The estimated average halftone granularity of the toner image after developing but before electrostatic transfer was set at 0.25 or less. The average halftone granularity was found by measuring the granularity of a toner image at locations of different average brightness by means of newly proposed formula, and averaging the measured values for which the average brightness is 40 to 80. The estimated average halftone granularity was obtained by estimating the average halftone granularity of the toner image on a photoreceptor by means of a newly proposed method.

摘要翻译： 一种能够可靠地形成具有浓度梯度的图像的电子照相图像形成装置，其不具有低质量的外观。 显影后但静电转印前的调色剂图像的估计的平均半色调粒度设定为0.25以下。 通过新提出的公式通过测量不同平均亮度的位置处的调色剂图像的粒度来求出平均半色调粒度，并将平均亮度为40-80的测量值平均。估计的平均半色调粒度通过 通过新提出的方法估计感光体上调色剂图像的平均半色调粒度。

公开(公告)号：US20050276632A1

公开(公告)日：2005-12-15

申请号：US11150299

申请日：2005-06-13

申请人： Osamu Ariizumi ,  Masahide Yamashita ,  Koji Suzuki ,  Yasushi Koichi ,  Shigekazu Enoki ,  Kumiko Hatakeyama ,  Koichi Kato ,  Toshiyuki Kabata ,  Jun Yura

发明人： Osamu Ariizumi ,  Masahide Yamashita ,  Koji Suzuki ,  Yasushi Koichi ,  Shigekazu Enoki ,  Kumiko Hatakeyama ,  Koichi Kato ,  Toshiyuki Kabata ,  Jun Yura

IPC分类号： G03G9/10 ,  G03G15/00 ,  G03G15/02 ,  G03G15/06 ,  G03G15/08 ,  G03G15/09 ,  G03G21/00 ,  G03G21/14

CPC分类号： G03G21/0064 ,  G03G2215/0119 ,  G03G2215/0607

摘要： An image forming apparatus of the present invention includes a developing device bifunctioning as a cleaning device for collecting toner grains left on a photoconductive drum after the transfer of a toner image from the drum to a paper sheet or similar image transfer medium. In the event of toner collection, a DC voltage is applied that causes the residual toner to move from the drum toward a developing sleeve. A main-pole magnet generates, at a position where the developing sleeve faces the drum, a magnetic field of between 100 mT and 200 mT in a direction normal to the surface of the sleeve.

摘要翻译： 本发明的图像形成装置包括将调色剂图像从滚筒转印到纸张或类似的图像转印介质上之后作为用于收集留在感光鼓上的调色剂颗粒的清洁装置的显影装置。 在调色剂收集的情况下，施加直流电压，使得残留调色剂从鼓向显影套筒移动。 主极磁铁在垂直于套筒表面的方向上在显影套筒面向鼓的位置处产生介于100mT和200mT之间的磁场。

公开(公告)号：US06835517B2

公开(公告)日：2004-12-28

申请号：US10151103

申请日：2002-05-21

申请人： Maiko Kondo ,  Yasuaki Iwamoto ,  Fumihiro Sasaki ,  Hiroto Higuchi ,  Bing Shu ,  Yasushi Koichi

发明人： Maiko Kondo ,  Yasuaki Iwamoto ,  Fumihiro Sasaki ,  Hiroto Higuchi ,  Bing Shu ,  Yasushi Koichi

IPC分类号： G03G9087

CPC分类号： G03G9/08782 ,  G03G9/09783

摘要： A toner including at least a binder resin; a colorant; a charge controlling agent; and a wax (B), in which the charge controlling agent comprises a compound selected from the group consisting of: an aromatic oxycarboxylic acids, derivatives of aromatic oxycarboxylic acid, salts of aromatic oxycarboxylic acids and salts of derivatives of aromatic oxycarboxylic acids; and a zirconium compound (A), and in which the zirconium compound (A) and the wax (B) have a weight ratio (A/B) satisfying the following relationship: 3.0≦(A/B)×100≦60.0

摘要翻译： 包含至少粘合剂树脂的调色剂; 着色剂;电荷控制剂; 和蜡（B），其中电荷控制剂包含选自以下的化合物：芳族羟基羧酸，芳族羟基羧酸的衍生物，芳族羟基羧酸的盐和芳族羟基羧酸的衍生物的盐; 锆化合物（A），其中锆化合物（A）和蜡（B）的重量比（A / B）满足以下关系：

公开(公告)号：US4885612A

公开(公告)日：1989-12-05

申请号：US254863

申请日：1988-10-07

申请人： Tsumori Satoh ,  Yasushi Koichi

发明人： Tsumori Satoh ,  Yasushi Koichi

IPC分类号： G03G9/10 ,  G03G9/08 ,  G03G21/00 ,  G03G21/10

CPC分类号： G03G21/0047 ,  G03G2221/0005

摘要： A cleaning device for an image forming apparatus which develops an electrostatic latent image provided on an image carrier with toner, transfers the resulting toner image to a transfer material, and cleans the image carrier to remove toner remaining thereon and, more particularly, a cleaning device of the type using a carrier retaining member which retains carrier thereon by a magnetic force. Carrier particles which form a magnet brush have volume resistivity of lower than 10.sup.10 .OMEGA..cm while toner particles have a dielectric constant of smaller than 3.7.

摘要翻译： 一种用于图像形成装置的清洁装置，其使用调色剂显影在图像载体上的静电潜像，将所得到的调色剂图像转印到转印材料上，并清洁图像载体以除去其上残留的调色剂，更具体地，清洁装置 使用使用磁力将载体保持在其上的载体保持构件。 形成磁刷的载体颗粒的体积电阻率低于1010ΩEG，而调色剂颗粒的介电常数小于3.7。

公开(公告)号：US4639117A

公开(公告)日：1987-01-27

申请号：US439211

申请日：1982-11-04

申请人： Kazuo Murai ,  Yasushi Koichi

发明人： Kazuo Murai ,  Yasushi Koichi

IPC分类号： G03G21/00 ,  G03G15/08 ,  G03G15/00

CPC分类号： G03G15/0849 ,  G03G15/5041

摘要： A recording image density control method for electrophotography comprising the steps of forming at least two latent electrostatic image patterns with different electric potentials on the surface of a photoconductor; developing the latent electrostatic images patterns to toner image patterns by use of toner contained in the developer; detecting data relevant to image density for each developed toner image pattern (such as the image density of each developed toner image pattern, for instance, by a toner image pattern, for instance, by a photosensor), with a different resolution for each image pattern; determining the ratio of the data for one image pattern to the data for the other image pattern by A/D conversion; and controlling at least one recording image density controlling parameter, such as the amount of the toner supplied to a development apparatus, in accordance with the ratio for controlling recording image density, whereby recording image density can be controlled.

摘要翻译： 一种用于电子照相的记录图像浓度控制方法，包括以下步骤：在感光体的表面上形成具有不同电位的至少两个静电潜像图案; 通过使用包含在显影剂中的调色剂将静电潜像图案显影成调色剂图像图案; 对于每个显影的调色剂图像图案（诸如每个显影的调色剂图像图案的图像浓度，例如通过调色剂图像图案，例如由光电传感器）检测与图像浓度相关的数据，对于每个图像图案具有不同的分辨率 ; 通过A / D转换确定一个图像图案的数据与另一图像图案的数据的比率; 以及根据控制记录图像浓度的比例来控制至少一个记录图像浓度控制参数，例如供应给显影设备的调色剂量，从而可以控制记录图像浓度。

公开(公告)号：US07315711B2

公开(公告)日：2008-01-01

申请号：US11150299

申请日：2005-06-13

申请人： Osamu Ariizumi ,  Masahide Yamashita ,  Koji Suzuki ,  Yasushi Koichi ,  Shigekazu Enoki ,  Kumiko Hatakeyama ,  Koichi Kato ,  Toshiyuki Kabata ,  Jun Yura

发明人： Osamu Ariizumi ,  Masahide Yamashita ,  Koji Suzuki ,  Yasushi Koichi ,  Shigekazu Enoki ,  Kumiko Hatakeyama ,  Koichi Kato ,  Toshiyuki Kabata ,  Jun Yura

IPC分类号： G03G15/24 ,  G03G15/09

CPC分类号： G03G21/0064 ,  G03G2215/0119 ,  G03G2215/0607

摘要： An image forming apparatus of includes a developing device bifunctioning as a cleaning device for collecting toner grains left on a photoconductive drum after the transfer of a toner image from the drum to a paper sheet or similar image transfer medium. In the event of toner collection, a DC voltage is applied that causes the residual toner to move from the drum toward a developing sleeve. A main-pole magnet generates, at a position where the developing sleeve faces the drum, a magnetic field of between 100 mT and 200 mT in a direction normal to the surface of the sleeve.

摘要翻译： 一种图像形成装置，包括：将调色剂图像从滚筒转印到纸张或类似的图像转印介质上之后，作为用于收集留在感光鼓上的调色剂颗粒的清洁装置的显影装置。 在调色剂收集的情况下，施加直流电压，使得残留调色剂从鼓向显影套筒移动。 主极磁铁在垂直于套筒表面的方向上在显影套筒面向鼓的位置处产生介于100mT和200mT之间的磁场。

公开(公告)号：US07273688B2

公开(公告)日：2007-09-25

申请号：US11503152

申请日：2006-08-14

申请人： Koji Suzuki ,  Mitsuo Aoki ,  Bing Shu ,  Yasushi Koichi ,  Setsuo Soga ,  Tadashi Kasai ,  Yutaka Takahashi

发明人： Koji Suzuki ,  Mitsuo Aoki ,  Bing Shu ,  Yasushi Koichi ,  Setsuo Soga ,  Tadashi Kasai ,  Yutaka Takahashi

IPC分类号： G03G13/20

CPC分类号： G03G15/5041 ,  G03G15/00 ,  G03G2215/00033 ,  G03G2215/00071 ,  G03G2215/0602

摘要： An electrophotographic image forming apparatus capable of reliably forming an image with density gradation, one which does not have a low-quality appearance. The estimated average halftone granularity of the toner image after developing but before electrostatic transfer was set at 0.25 or less. The average halftone granularity was found by measuring the granularity of a toner image at locations of different average brightness by means of newly proposed formula, and averaging the measured values for which the average brightness is 40 to 80. The estimated average halftone granularity was obtained by estimating the average halftone granularity of the toner image on a photoreceptor by means of a newly proposed method.

摘要翻译： 一种能够可靠地形成具有浓度梯度的图像的电子照相图像形成装置，其不具有低质量的外观。 显影后但静电转印前的调色剂图像的估计的平均半色调粒度设定为0.25以下。 通过新提出的公式通过测量不同平均亮度的位置处的调色剂图像的粒度来求出平均半色调粒度，并将平均亮度为40-80的测量值平均。估计的平均半色调粒度通过 通过新提出的方法估计感光体上调色剂图像的平均半色调粒度。