公开(公告)号：US06391506B1

公开(公告)日：2002-05-21

申请号：US08887331

申请日：1997-07-02

申请人： Kazuhiko Yanagida ,  Suk Kim ,  Shigeru Inaba ,  Taku Fukuhara ,  Yasuhiro Oda

发明人： Kazuhiko Yanagida ,  Suk Kim ,  Shigeru Inaba ,  Taku Fukuhara ,  Yasuhiro Oda

IPC分类号： G03G9113

CPC分类号： G03G9/1075 ,  G03G9/113 ,  G03G9/1133 ,  G03G9/1139

摘要： The present invention discloses a carrier, which comprises a core and a resin coating layer formed thereon containing electroconductive powder, wherein, when the magnetic brush is formed only of the core, the dynamic electrical resistance of the core forming the magnetic brush under an electric field of 104 V/cm is 1 &OHgr;·cm or less and the electrical resistance of the resin coating layer is from 10 to 1×108 &OHgr;·cm, a developer using the carrier, and an image-forming method using the developer. Owing to the present invention, a superior solid image, which is free of brush marks and carrier beads carry over, can be obtained.

公开(公告)号：US06416919B1

公开(公告)日：2002-07-09

申请号：US09676817

申请日：2000-10-02

申请人： Kazuhiko Yanagida ,  Suk Kim ,  Shigeru Inaba ,  Taku Fukuhara ,  Yasuhiro Oda

发明人： Kazuhiko Yanagida ,  Suk Kim ,  Shigeru Inaba ,  Taku Fukuhara ,  Yasuhiro Oda

IPC分类号： G03G1309

CPC分类号： G03G9/1075 ,  G03G9/113 ,  G03G9/1133 ,  G03G9/1139

摘要： The present invention discloses a carrier, which comprises a core and a resin coating layer formed thereon containing electroconductive powder, wherein, when the magnetic brush is formed only of the core, the dynamic electrical resistance of the core forming the magnetic brush under an electric field of 104 V/cm is 1 &OHgr;·cm or less and the electrical resistance of the resin coating layer is from 10 to 1×108 &OHgr;·cm, a developer using the carrier, and an image-forming method using the developer. Owing to the present invention, a superior solid image, which is free of brush marks and carrier beads carry over, can be obtained.

摘要翻译： 本发明公开了一种载体，其包含芯和形成有导电粉末的树脂涂层，其中，当磁刷仅由芯形成时，在电场下形成磁刷的芯的动态电阻 为104欧姆/厘米2，OMEGA·cm以下，树脂被覆层的电阻为10〜1×10 8欧姆计，使用该载体的显影剂，使用该显影剂的成像方法。 由于本发明，可以获得不含刷痕和载体珠的优良固体图像。

公开(公告)号：US08787788B2

公开(公告)日：2014-07-22

申请号：US13206123

申请日：2011-08-09

申请人： Tetsunao Koujiri ,  Taku Fukuhara ,  Yoko Miyamoto

发明人： Tetsunao Koujiri ,  Taku Fukuhara ,  Yoko Miyamoto

IPC分类号： G03G15/16

CPC分类号： G03G15/161 ,  G03G15/0189 ,  G03G15/162 ,  G03G2215/0129

摘要： An image forming apparatus includes an image holding body that holds an electrostatic latent image; a developing device that develops the electrostatic latent image with a toner and forms a toner image on the image holding body; a transfer member having a fluorocarbon resin dispersion layer at least at a surface layer of the transfer member, fluorocarbon resin being dispersed in the fluorocarbon resin dispersion layer; a first transfer device that first-transfers the toner image, which is formed on the image holding body, on the transfer member; a second transfer device that second-transfers the toner image, which is first-transferred on the transfer member, on a recording medium; and an abrading member that is arranged to come into contact with and be separated from the transfer member and abrades part of the surface layer of the transfer member when the abrading member contacts the transfer member.

摘要翻译： 图像形成装置包括保持静电潜像的图像保持体; 显影装置，其利用调色剂显影静电潜像并在图像保持体上形成调色剂图像; 至少在转印部件的表面层具有碳氟树脂分散层的转印部件，氟树脂分散在氟碳树脂分散层中; 第一转印装置，其将形成在图像保持体上的调色剂图像首先转印在转印部件上; 第二转印装置，其将首先转印在转印部件上的调色剂图像二次转印在记录介质上; 以及研磨构件，其被配置为当所述研磨构件接触所述转印构件时与所述转印构件接触并与所述转印构件分离并磨蚀所述转印构件的表面层的一部分。

公开(公告)号：US08725029B2

公开(公告)日：2014-05-13

申请号：US13008404

申请日：2011-01-18

申请人： Taku Fukuhara

发明人： Taku Fukuhara

IPC分类号： G03G15/16

CPC分类号： G03G15/161 ,  G03G2215/1623

摘要： An image forming apparatus includes: an image forming unit forming a toner image; an image carrier carrying the toner image; an endless transfer belt rotating with a recording medium interposed between the transfer belt and the image carrier; a cleaner provided in contact with an outer surface of the transfer belt and electrostatically cleaning toner on the outer surface; a transfer roll provided inside the transfer belt and generating a transfer electric field for transferring the toner image from the image carrier to the recording medium while pressing the transfer belt toward the image carrier; a cleaning roll mounted around by the transfer belt as well as the transfer roll, the cleaning roll provided to face the cleaner and generating a cleaning electric field; and a tension roll mounted around by the transfer belt as well as the transfer roll and the cleaning roll.

摘要翻译： 图像形成装置包括：形成调色剂图像的图像形成单元; 承载调色剂图像的图像载体; 循环转印带，其中转印带和图像载体之间的记录介质旋转; 设置成与转印带的外表面接触并在外表面上静电清洁调色剂的清洁剂; 转印辊，其设置在转印带的内部，并产生转印电场，用于将调色剂图像从图像载体转印到记录介质上，同时将转印带朝向图像载体按压; 由转印带以及转印辊安装的清洁辊，设置成面向清洁器并产生清洁电场的清洁辊; 以及由转印带以及转印辊和清洁辊安装的张力辊。

公开(公告)号：US08050605B2

公开(公告)日：2011-11-01

申请号：US12538543

申请日：2009-08-10

申请人： Nobuo Hyakutake ,  Taku Fukuhara ,  Masaaki Takahashi ,  Takashi Kawabata

发明人： Nobuo Hyakutake ,  Taku Fukuhara ,  Masaaki Takahashi ,  Takashi Kawabata

IPC分类号： G03G15/01

CPC分类号： G03G15/161 ,  G03G15/0131 ,  G03G15/1615 ,  G03G2215/00156

摘要： An image forming apparatus includes: an image carrier having an endless circumferential surface on which a latent image is formed due to an electrostatic potential difference; a developing device that attaches a toner to the image carrier to form a toner image; an endless intermediate transfer belt that is entrained around a plurality of roll members and moves circumferentially, and contacts the image carrier to transfer the toner image to the intermediate transfer belt; a transferring device that further transfers the toner image that has been transferred to the intermediate transfer belt, to a recording sheet; and a load applying member that cooperates with one of the roll members placed inside the intermediate transfer belt, to nip the intermediate transfer belt to apply a load to the intermediate transfer belt, the load applying member contacting a non-image region of the intermediate transfer belt.

摘要翻译： 图像形成装置包括：具有环形圆周表面的图像载体，由于静电电位差而形成有潜像; 显影装置，其将调色剂附着到图像载体上以形成调色剂图像; 围绕多个辊构件夹带并沿周向运动并与图像载体接触以将调色剂图像转印到中间转印带的环形中间转印带; 进一步将已经转印到中间转印带上的调色剂图像转印到记录纸上的转印装置; 以及负载施加构件，其与设置在所述中间转印带内的所述辊构件之一配合，以夹持所述中间转印带以向所述中间转印带施加负载，所述负载施加构件接触所述中间转印的非图像区域 带。

公开(公告)号：US08818232B2

公开(公告)日：2014-08-26

申请号：US13359090

申请日：2012-01-26

申请人： Taku Fukuhara

发明人： Taku Fukuhara

IPC分类号： G03G15/16 ,  G03G15/01

CPC分类号： G03G15/161 ,  G03G15/0189 ,  G03G2215/0129

摘要： An image forming apparatus includes an image forming device including an image holding member; an intermediate transfer belt that holds on an outer surface thereof an developer image formed on the image holding member of the image forming device, and that rotates so as to transport the developer image up to a second transfer section, the intermediate transfer belt including a belt base material in which a resin particle is dispersed; a cleaning device including a plate member, the cleaning device performing a cleaning operation by at least contacting the plate member with a portion of an outer peripheral surface of the intermediate transfer belt that has passed the second transfer section; and a collecting member that removes and holds the resin particle existing at the outer peripheral surface of the intermediate transfer belt at least when the intermediate transfer belt is not used.

摘要翻译： 图像形成装置包括：图像形成装置，包括图像保持部件; 中间转印带，其在其外表面上保持形成在图像形成装置的图像保持部件上的显影剂图像，并且旋转以便将显影剂图像输送到第二转印部分，中间转印带包括带 其中分散有树脂颗粒的基材; 清洁装置，其包括板构件，所述清洁装置通过至少使所述板构件与所述中间转印带的经过所述第二转印部的外周表面的一部分接触来执行清洁操作; 以及至少在不使用中间转印带时，除去并保持存在于中间转印带的外周面的树脂粒子的收集部件。

公开(公告)号：US20100247129A1

公开(公告)日：2010-09-30

申请号：US12552406

申请日：2009-09-02

申请人： Nobuo Hyakutake ,  Taku Fukuhara ,  Takashi Kawabata ,  Kazutoshi Sugitani ,  Kiyotoshi Kaneyama

发明人： Nobuo Hyakutake ,  Taku Fukuhara ,  Takashi Kawabata ,  Kazutoshi Sugitani ,  Kiyotoshi Kaneyama

IPC分类号： G03G15/16 ,  G03G15/01

CPC分类号： G03G15/6585 ,  G03G15/0194 ,  G03G2215/0081

摘要： An image forming apparatus includes: an image forming section that forms a plurality of images including an image of a low-gloss toner lower in glossiness than any other color toner and an image of a transparent toner; an intermediate transferer to which the plurality of images formed by the image forming section are transferred; and a control section that controls a position for forming the image of the transparent toner, so as to prevent the image of the transparent toner from being transferred under the image of the low-gloss toner on the intermediate transferer.

摘要翻译： 图像形成装置包括：图像形成部，其形成多个图像，所述图像包括光泽度低于任何其它彩色调色剂的低光泽调色剂的图像和透明调色剂的图像; 传送由图像形成部形成的多个图像的中间转印体; 以及控制部分，其控制用于形成透明调色剂的图像的位置，以便防止透明调色剂的图像在低光泽调色剂的图像下转印到中间转印体上。

公开(公告)号：US07764900B2

公开(公告)日：2010-07-27

申请号：US11958124

申请日：2007-12-17

申请人： Nobuo Hyakutake ,  Taku Fukuhara

发明人： Nobuo Hyakutake ,  Taku Fukuhara

IPC分类号： G03G15/16

CPC分类号： G03G15/0131 ,  G03G15/161 ,  G03G2215/0129

摘要： An image forming apparatus includes an image carrier that holds a toner-image; an intermediate transfer member onto which the toner-image that has been held on the image carrier is transferred; a transfer unit that transfers onto a recording medium the toner-image that has been transferred onto the intermediate transfer member, the transfer unit transferring thereon a color-toner-image for checking toner-image, which has been formed in a non-image forming region on the intermediate transfer member; an application unit that applies an adhesion force reducing agent to a surface of the transfer unit before the color-toner-image for checking formed on the intermediate transfer member passes through the transfer unit, the adhesion force reducing agent reducing adhesion force to the transfer unit of the color-toner-image for checking; and a cleaning unit that removes the color-toner-image for checking that has been transferred onto the transfer unit and the adhesion force reducing agent.

摘要翻译： 图像形成装置包括保持调色剂图像的图像载体; 已经保持在图像载体上的调色剂图像被转印到其上的中间转印部件; 转印单元，其将已经转印到中间转印部件上的调色剂图像转印到记录介质上，转印单元在其上转印用于检查调色剂图像的彩色调色剂图像，其形成为非图像形成 中间转印部件上的区域; 在形成在中间转印部件上的用于检查的检查用彩色调色剂图像之前通过转印单元的粘合力降低剂施加到转印单元的表面的施加单元通过粘合力降低剂降低对转印单元的粘附力 用于检查的彩色调色剂图像; 以及去除已经转印到转印单元上的检查用彩色调色剂图像和粘附力降低剂的清洁单元。

公开(公告)号：US20090041486A1

公开(公告)日：2009-02-12

申请号：US12052449

申请日：2008-03-20

申请人： Tomoaki Yoshioka ,  Nobuo Hyakutake ,  Taku Fukuhara

发明人： Tomoaki Yoshioka ,  Nobuo Hyakutake ,  Taku Fukuhara

IPC分类号： G03G15/00 ,  G03G15/01 ,  G03G15/043

CPC分类号： G03G15/5058 ,  G03G15/0131 ,  G03G2215/00059 ,  G03G2215/0129

摘要： An image forming apparatus comprises a first image forming unit that transfers a base toner image formed on a first image carrier to an intermediate transfer member and forms an image and second image forming units that are plurally disposed downstream of the first image forming unit in a moving direction of the intermediate transfer member, transfer different color toner images formed on second image carriers to the intermediate transfer member and form images. The base toner image is formed beforehand in a single color region transferred onto the intermediate transfer member from the second image carriers of the second image forming units.

摘要翻译： 图像形成装置包括：第一图像形成单元，其将形成在第一图像载体上的基色调色剂图像转印到中间转印部件上，并且形成图像;以及第二图像形成单元，其在移动中多个位于第一图像形成单元的下游 中间转印部件的方向，将形成在第二图像载体上的不同颜色的调色剂图像转印到中间转印部件上并形成图像。 预先在从第二图像形成单元的第二图像载体转印到中间转印部件上的单一颜色区域中形成基底调色剂图像。

公开(公告)号：US08254799B2

公开(公告)日：2012-08-28

申请号：US12709167

申请日：2010-02-19

申请人： Taku Fukuhara

发明人： Taku Fukuhara

IPC分类号： G03G15/16

CPC分类号： G03G15/1605 ,  G03G15/0131 ,  G03G15/5054 ,  G03G15/5058 ,  G03G2215/00059 ,  G03G2215/0132 ,  G03G2215/0158

摘要： An image forming apparatus includes an image forming section forming a charged toner image on an image holding body; a transfer accepting body moving circularly on a circulation path; a transfer section which includes a current supplied member arranged opposite to the image holding body with respect to the transfer accepting body and applied with a current with polarity opposite to that of the toner image, and transfers the toner image to the transfer accepting body by applying a current to the current applied member; an unevenness detection section detecting an unevenness portion where unevenness occurs on the transfer accepting body; and a current control section controlling the applied current to the current applied member such that the current is larger while the unevenness portion detected by the unevenness detection section passes through the position than a current applied while another portion except the unevenness portion passes through the position.

摘要翻译： 图像形成装置包括在图像保持体上形成带电调色剂图像的图像形成部; 在循环路径上循环移动的转移接收体; 转印部分，其包括相对于转印接收体布置成与图像保持体相对的电流供给部件，并施加极性与调色剂图像极性相反的电流，并且通过施加将调色剂图像转印到转印接受体 当前申请成员的电流; 检测在转印接收体上出现不均匀的凹凸部的凹凸检测部; 以及电流控制部，其控制对当前施加部件的施加电流，使得当由不平坦度检测部检测到的不平坦部分通过位置时，电流较大，而不同于凹凸部分之外的另一部分通过该位置。