公开(公告)号：US20090136260A1

公开(公告)日：2009-05-28

申请号：US12323096

申请日：2008-11-25

申请人： Takaaki IKEGAMI ,  Takeshi Takada ,  Toshihiko Koizumi ,  Hideki Nakamura ,  Hajime Suzuki ,  Keisuke Shimoyama ,  Kohsuke Yamamoto ,  Eiji Kurimoto

发明人： Takaaki IKEGAMI ,  Takeshi Takada ,  Toshihiko Koizumi ,  Hideki Nakamura ,  Hajime Suzuki ,  Keisuke Shimoyama ,  Kohsuke Yamamoto ,  Eiji Kurimoto

IPC分类号： G03G15/00

CPC分类号： G03G5/0614 ,  G03G5/0605 ,  G03G5/0668 ,  G03G5/0679 ,  G03G5/0683 ,  G03G15/75

摘要： An electrophotographic photoconductor including a conductive support and a photosensitive layer, wherein the photosensitive layer contains a charge generation agent, a charge transport agent and a binder resin, and wherein the charge generation agent contains an asymmetric disazo pigment represented by General Formula (I), the charge transport agent contains a triphenylamine compound represented General Formula (IX), and the mass ratio of the charge transport agent to the binder resin is 0.3 to 2.0, where R1 and R2 each represent a substituted or unsubstituted alkyl group, alkoxy group, aryl group or heterocyclic group, provided that R1 and R2 are different, where R3 to R5 each represent hydrogen, a halogen atom, an alkyl group having 1 to 6 carbon atoms, which may have a substituent, an alkoxy group having 1 to 6 carbon atoms, which may have a substituent, or a substituted or unsubstituted aryl group having 6 to 12 carbon atoms.

摘要翻译： 一种电子照相感光体，包括导电性支持体和感光层，其中感光层含有电荷产生剂，电荷输送剂和粘合剂树脂，其中电荷产生剂含有由通式（I）表示的不对称双偶氮颜料， 电荷输送剂含有通式（IX）所示的三苯胺化合物，电荷输送剂与粘合剂树脂的质量比为0.3〜2.0，其中，R1和R2各自表示取代或未取代的烷基，烷氧基，芳基 基团或杂环基团，条件是R 1和R 2不同，其中R 3至R 5各自表示氢，卤素原子，具有1至6个碳原子的烷基，其可以具有取代基，具有1至6个碳原子的烷氧基 ，或可以具有取代基的取代或未取代的碳原子数为6〜12的芳基。

公开(公告)号：US20050118518A1

公开(公告)日：2005-06-02

申请号：US10938585

申请日：2004-09-13

申请人： Takaaki Ikegami ,  Shinji Nohsho ,  Eiji Kurimoto ,  Hidetoshi Kami ,  Akihiro Sugino ,  Yasuyuki Yamashita ,  Hideo Nakamori ,  Takeshi Takada

发明人： Takaaki Ikegami ,  Shinji Nohsho ,  Eiji Kurimoto ,  Hidetoshi Kami ,  Akihiro Sugino ,  Yasuyuki Yamashita ,  Hideo Nakamori ,  Takeshi Takada

IPC分类号： G03G5/047 ,  G03G5/06 ,  G03G5/147 ,  G03G13/00 ,  G03G15/00

CPC分类号： G03G5/14708 ,  G03G5/0614

摘要： The present invention relates to an electrophotographic photoconductor comprising a photoconductive layer, a protective layer, and a conductive support, wherein the protective layer is disposed as the outermost layer of the photoconductive layer, and 20% by volume to 60% by volume of fine particles of fluorine-contained resin and at least one compound selected from amine aromatic compounds and hydroxy aromatic compounds are incorporated into the protective layer. According to the present invention, high durability may be achieved, image degradation such as lags may be controlled from the increase of residual potential and decrease of charging, and high quality images may be formed stably even after the prolonged and repeated usage. The present invention also relates to an electrophotographic process, an electrophotographic apparatus and a process cartridge for the electrophotographic apparatus which utilize the electrophotographic photoconductor respectively.

摘要翻译： 本发明涉及一种包括光电导层，保护层和导电载体的电子照相感光体，其中保护层被设置为光电导层的最外层，并且20体积％至60体积％的细颗粒 的含氟树脂和至少一种选自胺芳族化合物和羟基芳族化合物的化合物引入到保护层中。 根据本发明，可以实现高耐久性，可以从残留电位的增加和充电的减少来控制诸如滞后的图像劣化，并且即使在长时间和重复使用之后也可以稳定地形成高质量的图像。 本发明还涉及分别利用电子照相感光体的电子照相方法，电子照相设备和用于电子照相设备的处理盒。

公开(公告)号：US08097393B2

公开(公告)日：2012-01-17

申请号：US11695750

申请日：2007-04-03

申请人： Takeshi Takada ,  Takaaki Ikegami

发明人： Takeshi Takada ,  Takaaki Ikegami

IPC分类号： G03G13/08

CPC分类号： G03G9/0806 ,  G03G5/14708 ,  G03G2215/00957 ,  G03G2215/209

摘要： An image forming apparatus at least containing an electrophotographic photoconductor, a latent electrostatic image forming unit, a developing unit, a transferring unit, and a fixing unit, wherein a glass transition temperature of an outermost layer of the electrophotographic photoconductor is 100° C. or more, wherein the toner is obtained by dissolving and/or dispersing the toner material containing at least an active hydrogen group-containing compound and a polymer reactive with the active hydrogen group-containing compound in an organic solvent to form a solution and/or a dispersion, emulsifying and/or dispersing the solution and/or the dispersion in an aqueous medium containing resin fine particles, allowing the active hydrogen group-containing compound and the polymer reactive with the active hydrogen group-containing compound to react in the aqueous medium, and removing the organic solvent, wherein a glass transition temperature of the resin fine particles is 65° C. to 85° C.

摘要翻译： 至少包含电子照相感光体，静电潜像形成单元，显影单元，转印单元和定影单元的图像形成装置，其中电子照相感光体的最外层的玻璃化转变温度为100℃， 其中调色剂通过将含有至少含活性氢基团的化合物的调色剂材料和与含活性氢基团的化合物反应的聚合物溶解和/或分散在有机溶剂中而形成溶液和/或 将溶液和/或分散体分散，分散在含有树脂微粒的水性介质中，使含活性氢基团的化合物和与含活性氢基团的化合物反应的聚合物在水性介质中反应， 并除去有机溶剂，其中树脂微粒的玻璃化转变温度为65℃至85℃。

公开(公告)号：US20070117033A1

公开(公告)日：2007-05-24

申请号：US11561983

申请日：2006-11-21

申请人： Akihiro SUGINO ,  Takaaki Ikegami ,  Takeshi Takada ,  Kazukiyo Nagai

发明人： Akihiro SUGINO ,  Takaaki Ikegami ,  Takeshi Takada ,  Kazukiyo Nagai

IPC分类号： G03G5/147

CPC分类号： G03G5/14708

摘要： An electrostatic latent image bearing member is provided including a substrate and a photosensitive layer located overlying the substrate, wherein the outermost layer of the electrostatic latent image bearing member includes a cross-linked resin formed from a cross-linking reaction between a charge transport polyol having a specific formula and an isocyanate compound; and the use of the electrostatic latent image bearing member in an image forming apparatus, a process cartridge, and an image forming method.

摘要翻译： 提供了一种静电潜像承载部件，其包括基板和位于基板上方的感光层，其中静电潜像承载部件的最外层包括交联树脂，该交联树脂由电荷传输多元醇 具体的配方和异氰酸酯化合物; 以及在图像形成装置，处理盒和图像形成方法中使用静电潜像承载部件。

公开(公告)号：US07212777B2

公开(公告)日：2007-05-01

申请号：US11065093

申请日：2005-02-25

申请人： Takeshi Takada ,  Takaaki Ikegami ,  Akihiro Sugino

发明人： Takeshi Takada ,  Takaaki Ikegami ,  Akihiro Sugino

IPC分类号： G03G21/00

CPC分类号： G03G15/5008 ,  G03G21/0029

摘要： An image forming apparatus including an image bearing member to bear a latent electrostatic image, an irradiation device and developing device to develop a toner latent electrostatic image on the image bearing member, a cleaning blade to remove toner particles remaining on the image bearing member, and a transfer device to transfer the toner image formed on the image bearing member to a recording material. The image forming apparatus satisfies relationships (1) and (2): (1) 0.10

摘要翻译： 一种图像形成装置，包括承载静电潜像的图像承载部件，照射装置和显影装置，用于在图像承载部件上显影调色剂静电潜像，清洁刮板以除去残留在图像承载部件上的调色剂颗粒，以及 转印装置，用于将形成在图像承载部件上的调色剂图像转印到记录材料上。 图像形成装置满足关系式（1）和（2）：（1）0.10 <或= DM 3 / V 3或3.41，其中D m表示调色剂的重均粒径，V 表示图像承载部件的圆周速度; 和（2）T at a / a = 1.40kgf.cm，其中T a a表示当测量转矩为15时图像承载部件的扭矩T的平均值 而清洁刮板与图像承载部件接触。

公开(公告)号：US07314693B2

公开(公告)日：2008-01-01

申请号：US10938585

申请日：2004-09-13

申请人： Takaaki Ikegami ,  Shinji Nohsho ,  Eiji Kurimoto ,  Hidetoshi Kami ,  Akihiro Sugino ,  Yasuyuki Yamashita ,  Hideo Nakamori ,  Takeshi Takada

发明人： Takaaki Ikegami ,  Shinji Nohsho ,  Eiji Kurimoto ,  Hidetoshi Kami ,  Akihiro Sugino ,  Yasuyuki Yamashita ,  Hideo Nakamori ,  Takeshi Takada

IPC分类号： G03G5/047

CPC分类号： G03G5/14708 ,  G03G5/0614

摘要： The present invention relates to an electrophotographic photoconductor comprising a photoconductive layer, a protective layer, and a conductive support, wherein the protective layer is disposed as the outermost layer of the photoconductive layer, and 20% by volume to 60% by volume of fine particles of fluorine-contained resin and at least one compound selected from amine aromatic compounds and hydroxy aromatic compounds are incorporated into the protective layer.According to the present invention, high durability may be achieved, image degradation such as lags may be controlled from the increase of residual potential and decrease of charging, and high quality images may be formed stably even after the prolonged and repeated usage.The present invention also relates to an electrophotographic process, an electrophotographic apparatus and a process cartridge for the electrophotographic apparatus which utilize the electrophotographic photoconductor respectively.

摘要翻译： 本发明涉及一种包括光电导层，保护层和导电载体的电子照相感光体，其中保护层被设置为光电导层的最外层，并且20体积％至60体积％的细颗粒 的含氟树脂和至少一种选自胺芳族化合物和羟基芳族化合物的化合物引入到保护层中。 根据本发明，可以实现高耐久性，可以从残留电位的增加和充电的减少来控制诸如滞后的图像劣化，并且即使在长时间和重复使用之后也可以稳定地形成高质量的图像。 本发明还涉及分别利用电子照相感光体的电子照相方法，电子照相设备和用于电子照相设备的处理盒。

公开(公告)号：US20050201778A1

公开(公告)日：2005-09-15

申请号：US11065093

申请日：2005-02-25

申请人： Takeshi Takada ,  Takaaki Ikegami ,  Akihiro Sugino

发明人： Takeshi Takada ,  Takaaki Ikegami ,  Akihiro Sugino

IPC分类号： G03G15/00 ,  G03G21/00

CPC分类号： G03G15/5008 ,  G03G21/0029

摘要： An image forming apparatus containing an image bearing member to bear a latent electrostatic image, a charging device to irradiate the image bearing member with light, a developing device to develop the latent electrostatic image on the image bearing member with a toner, a cleaning device having a cleaning blade to remove toner particles remaining on the image bearing member, and a transfer device to transfer the toner image formed on the image bearing member to a recording material. The image forming apparatus satisfies the following relationships (1) and (2): (1) 0.10

摘要翻译： 一种图像形成装置，包括承载静电潜像的图像承载部件，用光照射图像承载部件的充电装置，利用调色剂在图像承载部件上显影静电潜像的显影装置，具有 用于去除残留在图像承载部件上的调色剂颗粒的清洁刮板以及将形成在图像承载部件上的调色剂图像转印到记录材料上的转印装置。 图像形成装置满足以下关系式（1）和（2）：（1）0.10 <或= DM 3 / V 3或3.41，其中D m表示调色剂的重均粒径 V表示图像承载部件的圆周速度; 和（2）T at a / a = 1.40kgf.cm，其中T a a表示当测量转矩为15时图像承载部件的扭矩T的平均值 而清洁刮板与图像承载部件接触。

公开(公告)号：US20050130050A1

公开(公告)日：2005-06-16

申请号：US11006643

申请日：2004-12-08

申请人： Takeshi Takada ,  Takaaki Ikegami ,  Akihiro Sugino

发明人： Takeshi Takada ,  Takaaki Ikegami ,  Akihiro Sugino

IPC分类号： G03G5/147 ,  G03G9/08 ,  G03G9/097 ,  G03G15/01 ,  G03G21/00

CPC分类号： G03G5/147 ,  G03G5/14726 ,  G03G9/0821 ,  G03G9/097

摘要： Disclosed is an image forming apparatus for lowering friction coefficient and lowering surface energy of photoconductor surface in particular, which comprises an electrophotographic photoconductor, charging unit, light exposure unit, developing unit, transferring unit, and fixing unit, the electrophotographic photoconductor comprises a photosensitive layer on a conductive support and fluoropolymer fine particles at the outermost layer, a part of the fluoropolymer fine particles are exposed above the surface of the outermost layer in configurations of primary particles and secondary particles formed by flocculation of plural primary particles, and sum of area ratios of particles in the configurations of the primary particles and the secondary particles, each particles having an average diameter D of 0.15 μm≦D≦3.0 μm as respective projected figures of exposed portion above the surface of the outermost layer, is 10% to 60% based on the entire surface area of the outermost layer, and wherein the binder resin in the outermost layer comprises a polyalylate copolymer resin having a structural unit of alkylene-aryldicarboxylate.

摘要翻译： 公开了一种用于降低光电导体表面的摩擦系数和降低表面能的图像形成装置，其特征在于，其包括电子照相感光体，充电单元，曝光单元，显影单元，转印单元和定影单元，电子照相感光体包括感光层 在最外层的导电性支持体和含氟聚合物细颗粒上，一部分氟聚合物细颗粒以最初层的表面暴露在一次粒子和二次粒子的构造中，该二次粒子是通过多次一次粒子的絮凝而形成的， 的一次粒子和二次粒子的构造中的粒子的平均直径D为0.15μm的平均粒径D =3.0μm，作为在最外层的表面上的露出部分的各投影像素的10％〜 60％，基于最外层的整个表面积，w 本文中最外层的粘合剂树脂包含具有亚烷基 - 芳基二羧酸酯的结构单元的聚酸酯共聚物树脂。

公开(公告)号：US07851114B2

公开(公告)日：2010-12-14

申请号：US11561983

申请日：2006-11-21

申请人： Akihiro Sugino ,  Takaaki Ikegami ,  Takeshi Takada ,  Kazukiyo Nagai

发明人： Akihiro Sugino ,  Takaaki Ikegami ,  Takeshi Takada ,  Kazukiyo Nagai

IPC分类号： G03G15/02

CPC分类号： G03G5/14708

摘要： An electrostatic latent image bearing member is provided including a substrate and a photosensitive layer located overlying the substrate, wherein the outermost layer of the electrostatic latent image bearing member includes a cross-linked resin formed from a cross-linking reaction between a charge transport polyol having a specific formula and an isocyanate compound; and the use of the electrostatic latent image bearing member in an image forming apparatus, a process cartridge, and an image forming method.

摘要翻译： 提供了一种静电潜像承载部件，其包括基板和位于基板上方的感光层，其中静电潜像承载部件的最外层包括交联树脂，该交联树脂由电荷传输多元醇 具体的配方和异氰酸酯化合物; 以及在图像形成装置，处理盒和图像形成方法中使用静电潜像承载部件。

公开(公告)号：US20070231733A1

公开(公告)日：2007-10-04

申请号：US11695750

申请日：2007-04-03

申请人： Takeshi Takada ,  Takaaki Ikegami

发明人： Takeshi Takada ,  Takaaki Ikegami

IPC分类号： G03G15/08

CPC分类号： G03G9/0806 ,  G03G5/14708 ,  G03G2215/00957 ,  G03G2215/209

摘要： An image forming apparatus at least containing an electrophotographic photoconductor, a latent electrostatic image forming unit, a developing unit, a transferring unit, and a fixing unit, wherein a glass transition temperature of an outermost layer of the electrophotographic photoconductor is 100° C. or more, wherein the toner is obtained by dissolving and/or dispersing the toner material containing at least an active hydrogen group-containing compound and a polymer reactive with the active hydrogen group-containing compound in an organic solvent to form a solution and/or a dispersion, emulsifying and/or dispersing the solution and/or the dispersion in an aqueous medium containing resin fine particles, allowing the active hydrogen group-containing compound and the polymer reactive with the active hydrogen group-containing compound to react in the aqueous medium, and removing the organic solvent, wherein a glass transition temperature of the resin fine particles is 65° C. to 85° C.

摘要翻译： 至少包含电子照相感光体，静电潜像形成单元，显影单元，转印单元和定影单元的图像形成装置，其中电子照相感光体的最外层的玻璃化转变温度为100℃， 其中调色剂通过将含有至少含活性氢基团的化合物的调色剂材料和与含活性氢基团的化合物反应的聚合物溶解和/或分散在有机溶剂中而形成溶液和/或 将溶液和/或分散体分散，分散在含有树脂微粒的水性介质中，使含活性氢基团的化合物和与含活性氢基团的化合物反应的聚合物在水性介质中反应， 并除去有机溶剂，其中树脂微粒的玻璃化转变温度为65℃至85℃。