公开(公告)号：US08433211B2

公开(公告)日：2013-04-30

申请号：US12879390

申请日：2010-09-10

申请人： Masanori Horike ,  Tetsuro Hirota ,  Atsushi Kurokawa ,  Hideki Kosugi ,  Masaaki Yamada ,  Yoshiko Ogawa ,  Yuji Ishikura

发明人： Masanori Horike ,  Tetsuro Hirota ,  Atsushi Kurokawa ,  Hideki Kosugi ,  Masaaki Yamada ,  Yoshiko Ogawa ,  Yuji Ishikura

IPC分类号： G03G15/06

CPC分类号： G03G15/065 ,  G03G15/0818 ,  G03G2215/00776 ,  G03G2215/0651

摘要： A disclosed developing device includes a toner carrying member having electrodes, a toner supply unit supplying the toner to the toner carrying member, and a hopping electric field generator unit generating electric field to cause the toner hopping on the toner carrying member by applying a pulse voltage to the electrodes. The hopping electric field generator unit includes a pulse voltage generator circuit generating the pulse voltage, a first direct-current power source supplying bias to the pulse voltage generator circuit for regulating a peak value of the pulse voltage, and a second direct-current power source having a same polarity with a toner charging polarity, and outputting a variable voltage level. The hopping electric field generator unit controls the peak value of the pulse voltage by changing an output of the first power source and a mean thereof by changing an output of the second power source.

摘要翻译： 所公开的显影装置包括具有电极的调色剂承载构件，向调色剂承载构件供应调色剂的调色剂供应单元和产生电场的跳跃电场发生器单元，以通过施加脉冲电压使调色剂跳动到调色剂承载构件上 到电极。 跳频电场发生器单元包括产生脉冲电压的脉冲电压发生器电路，向脉冲电压发生器电路提供偏置以调节脉冲电压的峰值的第一直流电源和第二直流电源 具有与调色剂充电极性相同的极性，并输出可变电压电平。 跳频电场发生器单元通过改变第二电源的输出来改变第一电源的输出及其平均值来控制脉冲电压的峰值。

公开(公告)号：US07702265B2

公开(公告)日：2010-04-20

申请号：US11769363

申请日：2007-06-27

申请人： Hideki Kosugi ,  Yasuyuki Ishii ,  Takeo Tsukamoto

发明人： Hideki Kosugi ,  Yasuyuki Ishii ,  Takeo Tsukamoto

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  G03G2215/0651 ,  G03G2215/0653

摘要： A developing unit for transferring toner onto a latent image on an image carrier so as to develop the latent image includes a toner carrier, an electric field generator and a separating force applicator. The toner carrier including a plurality of electrodes disposed along the surface thereof and insulated from each other transports the toner to a developing area facing the image carrier. The electric field generator applies a periodic voltage to the plurality of electrodes of the toner carrier so that an electric field is generated on the toner carrier surface to cause the toner charged to a given polarity and borne on the surface of the toner carrier to hop. The separating force applicator applies a separating force to separate the toner on the toner carrier from the surface thereof outside the developing area. The separating force applicator is disposed separately from the electric field generator.

摘要翻译： 用于将调色剂转印到图像载体上的潜像以显影潜像的显影单元包括调色剂载体，电场发生器和分离力施加器。 包括沿其表面设置并彼此绝缘的多个电极的调色剂载体将调色剂输送到面向图像载体的显影区域。 电场发生器对调色剂载体的多个电极施加周期性电压，使得在调色剂载体表面上产生电场，使得调色剂充满给定的极性并承载在调色剂载体的表面上。 分离力施加器施加分离力以将调色剂载体上的调色剂与显影区域外部的表面分离。 分离力施加器与电场发生器分开设置。

公开(公告)号：US07155152B2

公开(公告)日：2006-12-26

申请号：US10666248

申请日：2003-09-22

申请人： Sadayuki Iwai ,  Tomoko Takahashi ,  Ayako Iino ,  Yoshinori Nakagawa ,  Hideki Kosugi

发明人： Sadayuki Iwai ,  Tomoko Takahashi ,  Ayako Iino ,  Yoshinori Nakagawa ,  Hideki Kosugi

IPC分类号： G03G15/16

CPC分类号： G03G15/1645 ,  G03G2215/0116

摘要： A charge removing unit is provided in order to control the surface potential of an image bearing element by removing charge from a surface of the image bearing element before a toner image is transferred from the image bearing element to a transfer medium. Surface potential controlling units are provided upstream of a contact area between the image bearing element and the transfer medium in order to control the surface potential of the transfer medium so that a toner on the image bearing element does not shift to the transfer medium.

摘要翻译： 提供电荷去除单元以便在将调色剂图像从图像承载元件转印到转印介质之前通过从图像承载元件的表面去除电荷来控制图像承载元件的表面电位。 表面电位控制单元设置在图像承载元件和转印介质之间的接触区域的上游，以便控制转印介质的表面电位，使得图像承载元件上的调色剂不会转移到转印介质上。

公开(公告)号：US08824935B2

公开(公告)日：2014-09-02

申请号：US13225905

申请日：2011-09-06

申请人： Hideyasu Seki ,  Yasuyuki Ishii ,  Hideki Kosugi ,  Tetsuro Hirota ,  Masaaki Yamada ,  Atsushi Kurokawa

发明人： Hideyasu Seki ,  Yasuyuki Ishii ,  Hideki Kosugi ,  Tetsuro Hirota ,  Masaaki Yamada ,  Atsushi Kurokawa

IPC分类号： G03G15/08

CPC分类号： G03G15/065 ,  G03G15/0818 ,  G03G2215/0651

摘要： A development device includes a developer container; a rotary cylindrical developer carrier including an outer electrode including multiple electrode portions arranged in a circumferential direction of the developer carrier, an inner electrode provided on an inner circumferential side of the developer carrier from the outer electrode, an insulation layer disposed between the outer electrode and the inner electrode, and a surface layer; and a bias power source to apply a first bias voltage and a second bias voltage to the inner electrode and the outer electrode, respectively. The first bias power source causes an electrical potential difference that changes with time between the inner electrode and the outer electrode to cause the developer to hop on a circumferential surface of the developer carrier. At least one of the first bias voltage and the second bias voltage has a cyclic waveform in which pulse-on time is reduced.

摘要翻译： 显影装置包括显影剂容器; 包括外电极的旋转圆柱形显影剂载体，所述外电极包括沿所述显影剂载体的圆周方向布置的多个电极部分，从所述外电极设置在所述显影剂载体的内周侧上的内电极，设置在所述外电极与所述外电极之间的绝缘层， 内部电极和表面层; 以及分别向内电极和外电极施加第一偏置电压和第二偏置电压的偏置电源。 第一偏置电源引起在内部电极和外部电极之间随时间变化的电位差，以使显影剂在显影剂载体的圆周表面上跳跃。 第一偏置电压和第二偏置电压中的至少一个具有脉冲开启时间减少的循环波形。

公开(公告)号：US08588635B2

公开(公告)日：2013-11-19

申请号：US12980951

申请日：2010-12-29

申请人： Yoshiko Ogawa ,  Yasuyuki Ishii ,  Hideki Kosugi ,  Masaaki Yamada ,  Atsushi Kurokawa ,  Yuji Ishikura

发明人： Yoshiko Ogawa ,  Yasuyuki Ishii ,  Hideki Kosugi ,  Masaaki Yamada ,  Atsushi Kurokawa ,  Yuji Ishikura

IPC分类号： G03G15/02

CPC分类号： G03G15/0818 ,  G03G2215/0634 ,  G03G2215/0651

摘要： A development device includes a developer container, a rotary developer carrier that is disposed facing the latent image carrier and including multiple outer electrodes arranged in a circumferential direction of the developer carrier, an inner electrode electrically insulated from the multiple outer electrodes, an insulation layer disposed between the inner and outer electrodes, and a surface layer overlaying the outer electrodes and electrically insulating the multiple outer electrodes from each other, a bias power source to generate electrical fields that change with time by applying a first and second bias voltages to the inner and outer electrodes, respectively, an electrical field adjuster to regulate the electrical fields in accordance with a thickness of the surface layer of the developer carrier, and a controller.

摘要翻译： 显影装置包括显影剂容器，与潜像载体相对设置的旋转显影剂载体，包括沿着显影剂载体的圆周方向布置的多个外部电极，与多个外部电极电绝缘的内部电极，设置有绝缘层 在内电极和外电极之间，以及覆盖外电极并使多个外电极彼此电绝缘的表面层，偏压电源，以产生电场，其随时间而变化，通过施加第一和第二偏置电压到内和 外部电极分别是电场调节器，以根据显影剂载体的表面层的厚度来调节电场，以及控制器。

公开(公告)号：US08897681B2

公开(公告)日：2014-11-25

申请号：US13222344

申请日：2011-08-31

申请人： Tetsuro Hirota ,  Hideki Kosugi ,  Masaaki Yamada ,  Atsushi Kurokawa ,  Hideyasu Seki ,  Yasuyuki Ishii

发明人： Tetsuro Hirota ,  Hideki Kosugi ,  Masaaki Yamada ,  Atsushi Kurokawa ,  Hideyasu Seki ,  Yasuyuki Ishii

IPC分类号： G03G15/08 ,  G03G15/06

CPC分类号： G03G15/0818 ,  G03G2215/0651

摘要： An image forming apparatus includes a latent image carrier to carry a latent image, a developing device having a toner carrier with first and second electrodes to develop the latent image by transferring the toner to a developing region between the toner carrier and the latent image carrier while causing the toner to hop between the first and second electrodes and attaching the hopping toner to the latent image, a pulsed power supply to output a first periodic pulse voltage having a mean potential the same as a normal toner charge and a second periodic pulse voltage, a smoothing circuit to make the first periodic pulse voltage smooth to generate a direct voltage, and a toner layer thickness regulator member to regulate, on receiving the direct voltage, a thickness of the toner layer in a region between a toner supply position at which toner is supplied and the developing region.

摘要翻译： 图像形成装置包括：潜像载体，用于承载潜像;显影装置，具有带有第一和第二电极的调色剂载体，以通过将调色剂转印到调色剂载体和潜像载体之间的显影区域来显影潜像，同时 使调色剂在第一和第二电极之间跳跃并将跳跃调色剂附着到潜像上，脉冲电源输出具有与正常调色剂电荷和第二周期性脉冲电压相同的平均电位的第一周期性脉冲电压， 使第一周期性脉冲电压平滑以产生直流电压的平滑电路;以及调色剂层厚度调节部件，其在接收到直接电压时，调节调色剂供给位置之间的区域中的调色剂层的厚度， 被供应和显影区域。

公开(公告)号：US07613419B2

公开(公告)日：2009-11-03

申请号：US11511380

申请日：2006-08-29

申请人： Kazumi Suzuki ,  Takashi Fujita ,  Hideki Kosugi ,  Ichiro Kadota ,  Atsushi Nakafuji ,  Hiromitsu Takagaki

发明人： Kazumi Suzuki ,  Takashi Fujita ,  Hideki Kosugi ,  Ichiro Kadota ,  Atsushi Nakafuji ,  Hiromitsu Takagaki

IPC分类号： G03G15/16

CPC分类号： G03G15/2064 ,  G03G9/0815 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G15/16 ,  G03G2215/0602 ,  G03G2215/1685

摘要： An image forming apparatus equipped with an image bearing member, a latent electrostatic image forming unit which forms a latent electrostatic image on the image bearing member, a developing unit which develops the latent electrostatic image by using a toner to form a toner image, a transfer fixing member which is roll shaped or belt shaped and bears the toner image , a heating unit which heats the toner image on the transfer fixing member; and a pressurizing member which is roll shaped and forms a transfer fixing nip with the transfer fixing member. The toner image on the transfer fixing member is transferred and fixed simultaneously to a recording medium which passes through the transfer fixing nip to record an image on the recording medium. At this time, the nip time, the time it takes for the recording medium to pass through the transfer fixing nip is set at 30 ms or less, the toner contains at least a binder, the binder has a main peak in an area of 5,000 to 15,000 molecular weight in a molecular weight distribution measured by GPC, the component of 30,000 or more molecular weight is 0.05% or less and a value of weight-average molecular weight (Mw) / number average molecular weight (Mn), Mw/Mn is 2 to 6.

摘要翻译： 具有图像承载部件的图像形成装置，在图像承载部件上形成静电潜像的静电潜像形成部，通过使用调色剂显影静电潜像以形成调色剂图像的显影单元，转印 固定构件，其为辊状或带状并承载调色剂图像;加热单元，其加热转印固定构件上的调色剂图像; 以及加压构件，其是辊状的并与转印固定构件形成转印定影辊隙。 传送固定​​部件上的调色剂图像被转印并同时固定到通过传送定影辊隙的记录介质上，以在记录介质上记录图像。 此时，记录介质通过转印定影辊隙所需的时间设定为30ms以下，调色剂至少含有粘合剂，粘合剂的主峰面积为5,000 通过GPC测定的分子量分布为15000分子量，30,000以上分子量的成分为0.05％以下，重均分子量（Mw）/数均分子量（Mn），Mw / Mn 是2到6。

公开(公告)号：US08126346B2

公开(公告)日：2012-02-28

申请号：US12570746

申请日：2009-09-30

申请人： Jun Yura ,  Koichi Kato ,  Hiroshi Nakai ,  Kazumi Suzuki ,  Kei Yasutomi ,  Hideki Kosugi ,  Hirokatsu Suzuki ,  Ichiro Kadota

发明人： Jun Yura ,  Koichi Kato ,  Hiroshi Nakai ,  Kazumi Suzuki ,  Kei Yasutomi ,  Hideki Kosugi ,  Hirokatsu Suzuki ,  Ichiro Kadota

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G2215/20 ,  G03G2215/2032

摘要： An apparatus and method for image fixing are disclosed. A fixing device includes a fixing member, a pressure member, a heater, and a pressure controller. The fixing member and the pressure member face with each other to form a nip. The heater heats a surface of the fixing member when the fixing member rotates. The pressure controller changes a pressure generated at the nip, according to an operation of the fixing device.

摘要翻译： 公开了一种用于图像定影的装置和方法。 定影装置包括固定构件，压力构件，加热器和压力控制器。 固定构件和压力构件彼此面对以形成辊隙。 当固定构件旋转时，加热器加热固定构件的表面。 压力控制器根据固定装置的操作改变压区产生的压力。

公开(公告)号：US07212753B2

公开(公告)日：2007-05-01

申请号：US11030158

申请日：2005-01-07

申请人： Hirokatsu Suzuki ,  Hiroshi Nakai ,  Hideki Kosugi ,  Ichiro Kadota ,  Jun Yura ,  Koichi Katoh ,  Kei Yasutomi ,  Kazumi Suzuki

发明人： Hirokatsu Suzuki ,  Hiroshi Nakai ,  Hideki Kosugi ,  Ichiro Kadota ,  Jun Yura ,  Koichi Katoh ,  Kei Yasutomi ,  Kazumi Suzuki

IPC分类号： G03G15/08

CPC分类号： G03G15/043 ,  G03G15/0896 ,  G03G2215/0119

摘要： An image forming apparatus includes an image carrier; an exposing unit that exposes the image carrier to light to form an electrostatic latent image on the image carrier; a developing unit that has at least a toner, and develops the electrostatic latent image formed on the image carrier as a toner image; a transfer unit that transfers the toner image onto a recording medium; a fixing unit that fixes the toner image transferred on the recording medium; an exposure-energy modulating unit that modulates exposure energy of the exposing unit; and a development-time detecting unit that detects operation time of the developing unit. The exposure-energy modulating unit modulates the exposure energy based on a result of detection by the development-time detecting unit.

摘要翻译： 图像形成装置包括图像载体; 曝光单元，其将所述图像载体曝光以在所述图像载体上形成静电潜像; 显影单元，其具有至少调色剂，并且将形成在图像载体上的静电潜像显影为调色剂图像; 转印单元，其将调色剂图像转印到记录介质上; 固定单元，其固定转印在记录介质上的调色剂图像; 曝光能量调制单元，其调制曝光单元的曝光能量; 以及显影时间检测单元，其检测显影单元的操作时间。 曝光能量调制单元基于显影时检测单元的检测结果对曝光能量进行调制。

公开(公告)号：US20050088697A1

公开(公告)日：2005-04-28

申请号：US10960049

申请日：2004-10-08

申请人： Kei Yasutomi ,  Jun Yura ,  Hideki Kosugi ,  Hirokatsu Suzuki ,  Kohichi Katoh ,  Hiroshi Nakai ,  Ichiro Kadota ,  Kazumi Suzuki

发明人： Kei Yasutomi ,  Jun Yura ,  Hideki Kosugi ,  Hirokatsu Suzuki ,  Kohichi Katoh ,  Hiroshi Nakai ,  Ichiro Kadota ,  Kazumi Suzuki

IPC分类号： B41J2/52 ,  B41J2/44 ,  G03G9/09 ,  G03G15/00 ,  G03G15/04 ,  G06K15/12 ,  H04N1/40 ,  H04N1/405 ,  H04N1/409 ,  H04N1/52 ,  H04N1/58 ,  H04N1/60

CPC分类号： H04N1/40068 ,  G06K15/1223 ,  G06K15/1238 ,  H04N1/405 ,  H04N1/6072

摘要： An image forming apparatus includes a pseudo half tone processing unit that performs a pseudo half tone process on input image data to generate output image data. An exposure unit executes light modulation of a plurality of light emitting sources based on the output image data. The exposure unit performs writing in such a way that different numbers of light emitting sources are used when writing a character/line image and a picture image or a graphics image. The pseudo half tone processing unit performs pseudo half tone processes with different resolutions on a character/line image and a picture image or a graphics image based on the numbers of the light emitting sources to be used for the writing by the exposure unit.

摘要翻译： 一种图像形成装置，包括伪半色调处理单元，对输入图像数据进行伪半色调处理，生成输出图像数据。 曝光单元基于输出图像数据执行多个发光源的光调制。 曝光单元以写入字符/行图像和图像图像或图形图像时使用不同数量的发光源的方式进行写入。 伪半色调处理单元基于用于由曝光单元的写入使用的发光源的数量，对字符/行图像和图像图像或图形图像执行具有不同分辨率的伪半色调处理。