公开(公告)号：US4788570A

公开(公告)日：1988-11-29

申请号：US851503

申请日：1986-04-14

申请人： Yoshihiro Ogata ,  Fuchio Takeda ,  Akito Yoshimaru ,  Shuichi Endoh ,  Toshio Kaneko ,  Toshihiko Takaya

发明人： Yoshihiro Ogata ,  Fuchio Takeda ,  Akito Yoshimaru ,  Shuichi Endoh ,  Toshio Kaneko ,  Toshihiko Takaya

IPC分类号： G03G15/09 ,  G03G15/08

CPC分类号： G03G15/09

摘要： A developing device includes a developing sleeve driven to rotate for transporting a film of charged developer as carried thereon past a developing station where the film of developer is applied to an electrostatic latent image to have it developed. Also provided is a sponge roller pressed against and driven to rotate in the same rotating direction as that of the developing sleeve, so that the developer is supplied to the developing sleeve at one side of the contact between the developing sleeve and the sponge roller and any residual developer on the developing sleeve is removed at the other side of the contact. Preferably, a desired voltage difference is established between the developing sleeve and the sponge roller. Furthermore, the sponge roller is preferably so structured to have a sufficient conductivity level at least at its outer peripheral surface thereby allowing the residual charge on the developing sleeve to be discharged sufficiently.

摘要翻译： 显影装置包括被驱动旋转的显影套筒，用于将带电显影剂的薄膜运送通过显影工位，其中将显影剂膜施加到静电潜像以使其显影。 还提供了一个海绵辊，其被压靠并驱动以与显影套筒相同的旋转方向旋转，使得显影剂在显影套筒和海绵辊之间的接触的一侧被供应到显影套筒，并且任何 显影套筒上的残留显影剂在触点的另一侧被去除。 优选地，在显影套筒和海绵辊之间建立期望的电压差。 此外，海绵辊的结构优选至少在其外周表面具有足够的导电率，从而允许显影套筒上的剩余电荷充分放电。

公开(公告)号：US4755847A

公开(公告)日：1988-07-05

申请号：US899325

申请日：1986-08-22

申请人： Hiroyuki Matsushiro ,  Toshio Kaneko ,  Fuchio Takeda ,  Yoshihiro Ogata ,  Toshihiko Takaya ,  Atsushi Shinozaki

发明人： Hiroyuki Matsushiro ,  Toshio Kaneko ,  Fuchio Takeda ,  Yoshihiro Ogata ,  Toshihiko Takaya ,  Atsushi Shinozaki

IPC分类号： G03G15/08

CPC分类号： G03G15/0812 ,  G03G2215/0614 ,  G03G2215/0636

摘要： An electrostatic latent image developing apparatus supplies toner to a latent image carrier such as a drum-shaped photosensitive body to visualize a latent image formed thereon. The toner is supplied by a rotating drum-shaped toner carrier having a portion confronting the photosensitive body adjacent thereto and another portion held in contact with toner contained in a toner container. The toner is electrostatically attracted to the toner carrier and transferred therefrom to the photosensitive body. The toner on the toner carrier is regulated into a thin toner layer by a toner layer regulating member that is resiliently held in sliding contact with the toner carrier. To prevent toner deposits from being attached to the toner layer regulating member, the toner layer regulating member is made of a material adapted to wear with the attached toner. In order to provide the toner layer regulating member with an ability to triboelectrically charge toner, whether chargeable to a polarity (-) or (+), or to control the amount of electricity on toner chargeable to a polarity (-) or (+) and prevent toner deposits from being attached to the toner layer regulating member, another material to control the amount of electricity on toner is mixed in the material which can be worn with the attached toner.

摘要翻译： 静电潜像显影装置向诸如鼓形感光体的潜像载体提供调色剂，以使形成在其上的潜像可视化。 调色剂由旋转的鼓形调色剂载体提供，其具有与感光体相邻的部分，另一部分保持与容纳在调色剂容器中的调色剂接触。 调色剂被静电吸引到调色剂载体上并从其转印到感光体上。 调色剂载体上的调色剂通过与调色剂载体弹性地保持滑动接触的调色剂层限制构件调节成薄的调色剂层。 为了防止调色剂沉积物附着到调色剂层调节部件上，调色剂层限制部件由适于与附着的调色剂一起磨损的材料制成。 为了提供调色剂层调节件具有对带电极（ - ）或（+）进行充电的调色剂的摩擦电荷能力，或者控制可充电到极性（ - ）或（+）的调色剂上的电量， 并且防止调色剂沉积物附着到调色剂层限制构件上，用于控制调色剂上的电量的另一种材料在可与所附着的调色剂一起磨损的材料中混合。

公开(公告)号：US4710015A

公开(公告)日：1987-12-01

申请号：US923904

申请日：1986-10-28

申请人： Fuchio Takeda ,  Hiroyuki Matsushiro ,  Kazuo Kobayashi ,  Toshio Kaneko

发明人： Fuchio Takeda ,  Hiroyuki Matsushiro ,  Kazuo Kobayashi ,  Toshio Kaneko

IPC分类号： G03G15/08

CPC分类号： G03G15/0818

摘要： A developing apparatus is disclosed, in which a developing roller composed of an insulating layer, a dielectric layer and an electrically conductive substrate is made in contact with a photosensitive member to develope a latent image on the member. The dielectric layer is formed of a material whose resistivity-specific dielectricity characteristics satisfies a certain condition which is suitable for medial tone development or binary tone development.

摘要翻译： 公开了一种显影装置，其中由绝缘层，电介质层和导电基底构成的显影辊与感光构件接触以在构件上显影潜像。 电介质层由电阻率特异性介电特性满足一定条件的材料形成，该条件适用于内侧色调发展或二色调显影。

公开(公告)号：US5527657A

公开(公告)日：1996-06-18

申请号：US343188

申请日：1994-11-22

申请人： Fuchio Takeda ,  Hachiro Tosaka ,  Kunihiko Tomita

发明人： Fuchio Takeda ,  Hachiro Tosaka ,  Kunihiko Tomita

IPC分类号： G03G9/083 ,  G03G15/09

CPC分类号： G03G9/0833 ,  Y10S430/104

摘要： A one-component magnetic toner with high resistivity for use in electrophotography for developing latent electrostatic images to visible toner images by contact development, includes a coloring agent, a binder resin, and a magnetic material which contains a bivalent metal and a trivalent iron with the molar ratio of the bivalent metal to the trivalent iron being 1/3 or less.

摘要翻译： 具有高电阻率的单组分磁性调色剂，用于通过接触显影将静电潜像显影成可见的调色剂图像的电子照相术，包括着色剂，粘合剂树脂和含有二价金属和三价铁的磁性材料 二价金属与三价铁的摩尔比为1/3以下。

公开(公告)号：US4908665A

公开(公告)日：1990-03-13

申请号：US159282

申请日：1988-02-23

申请人： Fuchio Takeda ,  Kazuo Nojima ,  Yasutaka Nakamura

发明人： Fuchio Takeda ,  Kazuo Nojima ,  Yasutaka Nakamura

IPC分类号： G03G15/08

CPC分类号： G03G15/0818

摘要： A developer carrier is used in a dry-type image developing device employing a one-component developer in an electrophotographic copier or an electrostatic recording apparatus. The developer carrier has a resin coating layer including an electrically conductive filler dispersed therein which is made of a material having a volume resistivity of at most 100 .OMEGA.cm. With this arrangement, the range in which the resistance of the surface layer varies under the ambient condition of varying temperature and humidity is small, producing a copy of stable image quality free from a smeared or contaminated background.

摘要翻译： 在电子照相复印机或静电记录装置中使用单组分显影剂的干式图像显影装置中使用显影剂载体。 显影剂载体具有包含分散在其中的导电填料的树脂涂层，该导电填料由体积电阻率至多为100欧米亚厘米的材料制成。 通过这种布置，表面层的电阻在温度和湿度变化的环境条件下变化的范围很小，产生了没有污迹或污染背景的稳定图像质量的拷贝。

公开(公告)号：US5937750A

公开(公告)日：1999-08-17

申请号：US861082

申请日：1997-05-21

申请人： Fuchio Takeda

发明人： Fuchio Takeda

IPC分类号： B41L13/04 ,  B41L13/06 ,  B41L13/18 ,  B41M1/12

CPC分类号： B41L13/06 ,  B41M1/125

摘要： A stencil printer of the present invention includes a print drum and a pressing member. After a cut stencil or master has been wrapped around the print drum, the pressing member presses a paper or similar recording medium against the master. As a result, ink fed to the print drum oozes out to the paper and prints a desired image thereon. When the pressing member presses the paper against the master, an electric field is formed between the pressing member and the print drum in the direction in which the ink migrates from the drum to the paper. The printer is capable of adjusting image density without varying a mechanical pressure to act on the drum or varying the print speed.

摘要翻译： 本发明的模版印刷机包括印刷鼓和按压部件。 在切割模板或主机已经缠绕在打印滚筒上之后，按压部件将纸张或类似的记录介质压向主机。 结果，供给到打印鼓的墨水渗出到纸上并在其上打印所需的图像。 当按压构件将纸张压靠在母板上时，沿着墨从墨辊向纸张移动的方向在按压构件和打印鼓之间形成电场。 打印机能够调节图像浓度，而不会改变机械压力以作用于滚筒或改变打印速度。

公开(公告)号：US5253017A

公开(公告)日：1993-10-12

申请号：US976424

申请日：1992-11-13

申请人： Fuchio Takeda

发明人： Fuchio Takeda

IPC分类号： G03G15/00 ,  G03G15/02 ,  G03G15/08 ,  G03G21/00

CPC分类号： G03G15/75 ,  G03G15/0216 ,  G03G15/0806

摘要： An image forming apparatus capable of preventing a toner from depositing on non-charged part of an image carrier just after the start of an image forming operation even when implemented with a contact reversal development system and a contact charging system. A charge power source assigned to a charging roller feeds a current great enough to prevent toner deposition on the non-charged part of the image carrier to a constant voltage generation circuit which is connected to the image carrier.

摘要翻译： 即使在用接触反转显影系统和接触充电系统实现时，即使在图像形成操作开始之后，也能够防止调色剂沉积在图像载体的未充电部分上的图像形成装置。 分配给充电辊的充电电源馈送足够大的电流，以防止图像载体的未充电部分上的调色剂沉积到连接到图像载体的恒定电压产生电路。

公开(公告)号：US4899689A

公开(公告)日：1990-02-13

申请号：US321374

申请日：1989-03-10

申请人： Fuchio Takeda ,  Koji Sakamoto ,  Kazuo Kobayashi

发明人： Fuchio Takeda ,  Koji Sakamoto ,  Kazuo Kobayashi

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  G03G2215/0617 ,  G03G2215/0636

摘要： A developing device including a developing roller which has a resilient support layer and a dielectric layer provided on the support layer and developing an electrostatic latent image formed on a photoconductive drum through the roller by using a single-component developer, i.e. toner. The variation of development characteristics ascribable to the developing roller is suppressed by providing a resilient material which constitutes the support layer with a resistance value less than a predetermined value that is mostly determined by a relationship between the resistance value and the developing time. Further, a method is described for producing a developing roller for the developing device.

摘要翻译： 一种显影装置，包括具有弹性支撑层和设置在支撑层上的介电层的显影辊，并通过使用单组分显影剂（即调色剂）使通过辊形成在感光鼓上的静电潜像显影。 通过提供构成支撑层的弹性材料，其电阻值小于主要由电阻值和显影时间之间的关系决定的预定值，来抑制显影辊的显影特性的变化。 此外，描述了一种用于生产用于显影装置的显影辊的方法。

公开(公告)号：US20080105161A1

公开(公告)日：2008-05-08

申请号：US11850288

申请日：2007-09-05

申请人： Keisuke Asada ,  Fuchio Takeda ,  Masahiro Narita ,  Koji Nagai

发明人： Keisuke Asada ,  Fuchio Takeda ,  Masahiro Narita ,  Koji Nagai

IPC分类号： C09D11/02

CPC分类号： C09D11/101

摘要： To provide an active energy beam-curable ink for screen printing, having at least monomer components and a polymerization initiator, wherein the polymerization initiator has an absorbance in terms of the concentration thereof of 100 or less at 365 nm.

摘要翻译： 为了提供丝网印刷的活性能量束固化性油墨，其至少具有单体成分和聚合引发剂，其中聚合引发剂在365nm下的浓度为100以下的吸光度。

公开(公告)号：US5543902A

公开(公告)日：1996-08-06

申请号：US466834

申请日：1995-06-06

申请人： Fuchio Takeda ,  Atsushi Ohta

发明人： Fuchio Takeda ,  Atsushi Ohta

IPC分类号： G03G15/08 ,  G03G15/06

CPC分类号： G03G15/0806 ,  G03G15/0818

摘要： A developing device for an image forming apparatus and capable of maintaining desirable image quality by reducing a change in the charged state of the surface of a developing roller and a change in the amount of charge to deposit on a developer. An insulating layer constitutes the surface of the developing roller and is made of a material more than 50 percent of which constitutes a non-polar high molecule. This prevents a toner from filming the surface of the roller. The insulating layer is implemented by a material substantially the same as the toner in charge series, so that the toner is frictionally charged by a member other than the developing roller. A discharge brush is held in contact with the roller and made of a material substantially identical with the toner in charge series, thereby preventing the toner from being frictionally charged by the brush even when the toner films the roller. Further, the insulating layer is constituted by a material in which a non-polar high molecule and a polar high molecule are mixed in a suitable ratio. As a result, a space charge is scarcely stored in the surface of the roller, thereby preventing a charge from being injected into the roller surface.

摘要翻译： 一种用于图像形成装置的显影装置，并且能够通过减少显影辊的表面的充电状态的变化以及沉积在显影剂上的电荷量的变化来保持期望的图像质量。 绝缘层构成显影辊的表面，由超过50％构成非极性高分子的材料制成。 这防止了调色剂使辊的表面成膜。 绝缘层由与电荷串联的调色剂基本上相同的材料实现，使得调色剂被除了显影辊之外的构件摩擦充电。 放电刷保持与辊接触并且由与电荷序列的调色剂基本相同的材料制成，从而防止调色剂即使当调色剂对辊进行胶卷时也被电刷摩擦。 此外，绝缘层由其中非极性高分子和极性高分子以适当比例混合的材料构成。 结果，空间电荷几乎不存储在辊的表面中，从而防止电荷注入辊表面。