公开(公告)号：US4530595A

公开(公告)日：1985-07-23

申请号：US407920

申请日：1982-08-13

申请人： Masahiko Itaya ,  Satoshi Haneda ,  Noriyoshi Tarumi ,  Makoto Tomono

发明人： Masahiko Itaya ,  Satoshi Haneda ,  Noriyoshi Tarumi ,  Makoto Tomono

IPC分类号： G03G21/00 ,  G03G21/10

CPC分类号： G03G21/0041 ,  G03G21/0047 ,  G03G21/10 ,  G03G2221/0005

摘要： A method and apparatus for cleaning toner from the surface of an electrostatic image holder wherein a film member comprising superposed insulating and conductive layers is positioned close to an electrostatic image holder so that the insulating layer of the film member faces the image holder. At least one of a d.c. voltage and an a.c. voltage is applied between the electrostatic image holder and the film member, the toner from the surface of the electrostatic image holder being removed and transferred onto the surface of the insulating layer of the film member. The toner from the surface of the insulating layer of the film member may be removed by a removing means. Also, an electrostatic charge eliminator is provided for eliminating the electrostatic charge from the surface of the insulating layer after removal of the toner therefrom.

摘要翻译： 一种用于从静电图像保持器的表面清洁调色剂的方法和设备，其中包括叠置的绝缘和导电层的膜构件定位成靠近静电图像保持器，使得膜构件的绝缘层面向图像保持器。 至少有一个d.c. 电压和电流 电压施加在静电图像保持器和膜构件之间，来自静电图像保持器的表面的调色剂被移除并转印到膜构件的绝缘层的表面上。 可以通过去除装置去除膜构件的绝缘层的表面的调色剂。 此外，提供静电电荷消除器，用于在从其去除调色剂之后从绝缘层的表面消除静电电荷。

公开(公告)号：US4499169A

公开(公告)日：1985-02-12

申请号：US448180

申请日：1982-12-09

申请人： Satoshi Haneda ,  Masahiko Itaya ,  Makoto Tomono

发明人： Satoshi Haneda ,  Masahiko Itaya ,  Makoto Tomono

IPC分类号： G03G15/06 ,  G03G13/09 ,  G03G15/09

CPC分类号： G03G15/0914 ,  G03G15/0907

摘要： The invention is directed to a developing method for electrophotography in which an insulating magnetic toner contacts an electrostatic image carrier to develop an electrostatic latent image. A magnetic bias is applied to restrain movement of the magnetic toner toward the image carrier and an alternating electric field is applied to the toner, all subject to the condition V/d.gtoreq.0.1.nu. in which V represents the effective voltage impressed upon the toner, d represents the clearance in millimeters between the image carrier and a developing sleeve, and .nu. represents the frequency in kilohertz of the alternating electric field.

摘要翻译： 本发明涉及一种用于电子照相的显影方法，其中绝缘磁性调色剂接触静电图像载体以显影静电潜像。 施加磁偏压以抑制磁性调色剂朝向图像载体的移动，并且对调色剂施加交变电场，所有这些都受到V / d> / = 0.1nu的条件的影响，其中V表示施加在图像载体上的有效电压 调色剂，d表示图像载体和显影套筒之间的间隔，以nu表示交变电场的千赫兹频率。

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：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。

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：US06466757B2

公开(公告)日：2002-10-15

申请号：US09785203

申请日：2001-02-20

申请人： Masahiko Itaya ,  Tsutomu Sasaki ,  Yusuke Takeda ,  Mie Yoshino

发明人： Masahiko Itaya ,  Tsutomu Sasaki ,  Yusuke Takeda ,  Mie Yoshino

IPC分类号： G03G1510

CPC分类号： G03G15/11

摘要： A developing device of the type using a developing liquid and applicable to an image forming apparatus includes a developing roller and a sweep roller. The developing roller is pressed against a photoconductive drum to thereby form a nip. The sweep roller is positioned downstream of the nip in the direction of rotation of the drum and pressed against the drum in such a manner as to sandwich a developed toner layer. The surface of the sweep roller moves at substantially the same speed as the surface of the drum. A bias voltage (250 V) close to the surface potential (100 V to 200 V) of the toner layer formed on the drum is applied to the sweep roller. The bias causes the sweep roller to attract stray excess toner present on the background of the drum after development, thereby preventing a toner image from being blurred.

摘要翻译： 使用显影液并适用于图像形成装置的显影装置包括显影辊和清扫辊。 将显影辊压在感光鼓上，从而形成辊隙。 扫掠辊位于辊隙的下游，沿着滚筒的旋转方向并以压制显影的调色剂层的方式压靠滚筒。 扫掠辊的表面以与鼓的表面基本相同的速度移动。 接近形成在鼓上的调色剂层的表面电位（100V至200V）的偏置电压（250V）施加到扫掠辊。 偏置导致扫掠辊在显影之后吸引存在于滚筒背景上的杂散多余的调色剂，从而防止调色剂图像模糊。

公开(公告)号：US06207336B1

公开(公告)日：2001-03-27

申请号：US09065437

申请日：1998-04-24

申请人： Masahiko Itaya ,  Hiroyuki Nakagoshi ,  Tsutomu Sasaki ,  Tai Hasegawa ,  Toshihiro Saito ,  Yoshiyuki Tanaka

发明人： Masahiko Itaya ,  Hiroyuki Nakagoshi ,  Tsutomu Sasaki ,  Tai Hasegawa ,  Toshihiro Saito ,  Yoshiyuki Tanaka

IPC分类号： G03G1310

CPC分类号： G03G15/101 ,  G03G9/12 ,  G03G9/18 ,  G03G13/10

摘要： A liquid developing method that uses a highly-concentrated liquid developing agent to develop an electrostatic latent image. A highly-concentrated liquid developing agent with a viscosity of 100 to 1,000 mPa.s can be used. Therefore, a film of developing agent from 5 to 40 &mgr;m thick can be formed on the surface of the developing roller or developing belt and this provides a soft contact with the photosensitive member surface where the electrostatic latent image has been formed. If the surface of the photosensitive member does not have good release properties, a film of pre-wet liquid can be formed on the surface of the photosensitive member. A gap which is larger than the thickness of the liquid developing agent film and smaller than the sum of the thicknesses of the liquid developing agent film and the pre-wet liquid film is maintained between the surfaces of the photosensitive member and the developing roller or other developing agent bearing member such that the pre-wet liquid is always interposed between the two surfaces. Extremely good copies can be obtained if a 5 to 40 &mgr;m thin film of liquid developing agent with a viscosity of 100 to 10,000 mPa.s and containing toner with an average particle size of 1 to 5.0 &mgr;m at a concentration of 5 to 40% is used with a 30 &mgr;m or less thin film of pre-wet liquid with a viscosity of 0.5 to 5.0 mPa.s and the gap between the photosensitive member and the developing agent roller or other developing agent bearing member is set at 5 to 60 &mgr;m.

摘要翻译： 使用高浓度液体显影剂显影静电潜像的液体显影方法。可以使用粘度为100至1,000mPa.s的高浓度液体显影剂。 因此，可以在显影辊或显影带的表面上形成5至40μm厚的显影剂的膜，并且与形成静电潜像的感光构件表面形成软接触。 如果感光构件的表面不具有良好的剥离性能，则可以在感光构件的表面上形成预湿液体膜。 在感光构件和显影辊等的表面之间保持大于液体显影剂膜的厚度的间隙，并且小于液体显影剂膜和预湿液膜的厚度之和的间隙 显影剂承载构件，使得预湿液体总是插入在两个表面之间。 如果粘度为100〜10,000mPa·s且含有平均粒径为1〜5.0μm的调色剂浓度为5〜40％的5〜40μm的液体显影剂薄膜，则可以得到非常好的份数 与30μm或更薄的预湿液体薄膜一起使用，粘度为0.5至5.0mPa.s，感光构件和显影剂辊或其它显影剂承载构件之间的间隙设定为5至60μm。

公开(公告)号：US5287161A

公开(公告)日：1994-02-15

申请号：US741192

申请日：1991-07-30

申请人： Shunji Matsuo ,  Shizuo Morita ,  Satoshi Haneda ,  Masakazu Fukuchi ,  Seiko Naganuma ,  Masahiko Itaya ,  Fumiaki Hiraike

发明人： Shunji Matsuo ,  Shizuo Morita ,  Satoshi Haneda ,  Masakazu Fukuchi ,  Seiko Naganuma ,  Masahiko Itaya ,  Fumiaki Hiraike

IPC分类号： G03G15/01 ,  G03G15/08 ,  G03G21/18

CPC分类号： G03G15/01 ,  G03G15/0896 ,  G03G21/1628 ,  G03G21/1807 ,  G03G21/1853 ,  G03G2221/1603 ,  G03G2221/1654 ,  G03G2221/1687 ,  G03G2221/18 ,  G03G2221/1853

摘要： A color image forming apparatus for forming a color image comprising; an image retainer for carrying the color image, a charger for charging a surface of the image retainer, a latent image former for forming a latent image on the charged surface of the image retainer, a multicolor developer for developing the latent image, a black developer for developing the latent image, a transfer sheet conveyer for conveying a transfer sheet and transferring the developed latent image onto the transfer sheet, and a cleaner for cleaning a residual developer on the surface of the image retainer, in which the image retainer, either one of the black developer or the multicolor developer, and the cleaning means are formed as a detachable processing cartridge, and the rest of the black developer or the multicolor developer is detachable to the body of the color image forming apparatus.

摘要翻译： 一种用于形成彩色图像的彩色图像形成装置，包括： 用于承载彩色图像的图像保持器，用于对图像保持器的表面充电的充电器，用于在图像保持器的带电表面上形成潜像的潜像形成器，用于显影潜像的多色显影剂，黑色显影剂 为了显影潜像，用于输送转印纸并将显影的潜像转印到转印纸上的转印纸输送机，以及用于清洁图像保持器表面上的剩余显影剂的清洁剂，其中图像保持器 的黑色显影剂或多色显影剂，并且清洁装置形成为可拆卸的处理盒，并且其余的黑色显影剂或多色显影剂可拆卸到彩色图像形成装置的主体。

公开(公告)号：US5024181A

公开(公告)日：1991-06-18

申请号：US520117

申请日：1990-05-07

申请人： Hisashi Shoji ,  Akihiko Tamura ,  Masahiko Itaya ,  Hiroshi Fuma ,  Shinobu Soma

发明人： Hisashi Shoji ,  Akihiko Tamura ,  Masahiko Itaya ,  Hiroshi Fuma ,  Shinobu Soma

IPC分类号： G03G13/09 ,  G03G15/09

CPC分类号： G03G13/09 ,  G03G15/09

摘要： A method of forming a multicolor toner image on an electrostatic latent image carrying member wherein developer containing a carrier and toner is transported to a developing region on a cylindrically shaped outer sleeve member of a developer transporting unit. Inside the sleeve there is provided at least one pair of magnets, the magnetic poles of which face the inner surface of the sleeve and are so arranged as to be rotatable, relative to each other, around the center axis of the sleeve. The amount of transported toner is regulated so that the amount of toner on the sleeve [mt], in mg/cm.sup.2, the peripheral speed of the image surface [V.sub.d ] and the peripheral speed of the sleeve member [V.sub.sl ] satisfy the following formulas:.vertline.V.sub.sl /V.sub.d .vertline..times.mt.gtoreq.0.4 mg/cm.sup.2.vertline.V.sub.sl /V.sub.3 .gtoreq.10

摘要翻译： 在静电潜像承载构件上形成多色调色剂图像的方法，其中含有载体和调色剂的显影剂被输送到显影剂传送单元的圆柱形外套筒构件上的显影区域。 在套筒内部设置有至少一对磁体，其磁极面对套筒的内表面，并且被布置为围绕套筒的中心轴线相对于彼此旋转。 调节运送调色剂的量，使得套筒上的调色剂数量（mg / cm2），图像面的圆周速度[Vd]和套筒构件的圆周速度[Vs1]满足下式 ：| Vsl / Vd|xmt> / = 0.4mg / cm2 | Vsl / V3> / = 10

公开(公告)号：US4908291A

公开(公告)日：1990-03-13

申请号：US273107

申请日：1988-11-16

申请人： Hiroshi Fuma ,  Akihiko Tamura ,  Masahiko Itaya ,  Hisashi Shoji ,  Shinobu Soma

发明人： Hiroshi Fuma ,  Akihiko Tamura ,  Masahiko Itaya ,  Hisashi Shoji ,  Shinobu Soma

IPC分类号： G03G15/09

CPC分类号： G03G15/09

摘要： The present invention provides a method of regulating the thickness of developer layer formed on a developer-transporting means by transporting the layer to a layer thickness-regulating means disposed so as to face with the developer transporting means, pressing the layer by the layer thickness-regulating means so that the layer thickness-regulating distance of the pressing portion between the layer thickness-regulating means and the developer-transporting means can be made substantially equal to the diameter of single developer particle, and allowing the layer to pass through the pressing portion while keeping the layer thickness-regulating distance substantially equal to the diameter of single developer particle.

摘要翻译： 本发明提供了一种调节显影剂输送装置形成的显影剂层的厚度的方法，该方法是将该层转移到与显影剂传送装置相对设置的层厚度调节装置， 使得层厚度调节装置和显影剂传送装置之间的按压部分的层厚度调节距离可以大致等于单个显影剂颗粒的直径，并且允许该层通过按压部分 同时保持层厚度调节距离基本上等于单个显影剂颗粒的直径。