公开(公告)号：US09104124B2

公开(公告)日：2015-08-11

申请号：US14114157

申请日：2012-04-23

申请人： Maho Hori ,  Kimihiro Yoshimura ,  Yohei Miyauchi ,  Kazuhisa Shirayama

发明人： Maho Hori ,  Kimihiro Yoshimura ,  Yohei Miyauchi ,  Kazuhisa Shirayama

IPC分类号： G03G15/04 ,  G03G15/00 ,  G03G5/08 ,  G03G5/05 ,  G03G5/06 ,  G03G5/147

CPC分类号： G03G5/08 ,  G03G5/0507 ,  G03G5/0542 ,  G03G5/0564 ,  G03G5/0696 ,  G03G5/14704 ,  G03G5/14756

摘要： The present invention relates to an electrophotographic photosensitive member including a support and a photosensitive layer formed on the support. The electrophotographic photosensitive member has a surface layer containing a polyarylate resin and acicular inorganic fillers. The acicular inorganic fillers are basic and have a number-average aspect ratio of 5 to 50 and a Mohs hardness of 2 to 6.

摘要翻译： 本发明涉及一种电子照相感光构件，其包括支撑体和形成在支撑体上的感光层。 电子照相感光构件具有包含多芳基化合物树脂和针状无机填料的表面层。 针状无机填料为碱性，数均分子量为5〜50，莫氏硬度为2〜6。

公开(公告)号：US20150185641A1

公开(公告)日：2015-07-02

申请号：US14145083

申请日：2013-12-31

申请人： Lexmark International, Inc.

发明人： Mark Thomas Bellino ,  Gerald Hugh Ciecior ,  Douglas Jeffrey Harris ,  Weimei Luo ,  Brian David Munson ,  Dat Quoc Nguyen ,  Scott Daniel Reeves ,  Tanya Yvonne Thames

IPC分类号： G03G5/147

CPC分类号： G03G5/14734 ,  G03G5/0525 ,  G03G5/0546 ,  G03G5/147 ,  G03G5/14713 ,  G03G5/14717 ,  G03G5/14721 ,  G03G5/14791 ,  G03G5/14795

摘要： An overcoat layer and method to make an overcoated photoconductor drum of an electrophotographic image forming device using irradiation such as with electron beam (EB) or ultraviolet (UV) light is provided. The photoconductor drum is then cured using EB dose of between 10 and 100 kiloGrays (kGy), preferably between 20 and 40 kGys or UV irradiation with an exposure of between 0.1 and 2 J/cm2. The unique overcoat layer of the present invention is formed having a biphasic morphology comprised of a highly cured crosslinked phase and a second phase enriched in uncured material. The desired amount of uncured uncrosslinked material found in the second phase of the biphasic structure, is between 2-70 wt % range, with particularly good combination of long-life and electrical performance when present at the 5-50 wt % level, and the best performance at the 15-40 wt % level. The biphasic morphology of the overcoat layer using the method of the present invention gives rise to the good wear rates while allowing rapid transport of the electrical charge and thus fast discharge properties of the photoconductor drum.

摘要翻译： 提供了使用诸如电子束（EB）或紫外（UV）光等照射的电子照相成像装置的外涂层感光鼓的外涂层和方法。 然后使用10至100千格（kGy），优选20至40kGys之间的EB剂量或0.1至2J / cm 2的曝光的UV照射来固化感光鼓。 本发明的独特外涂层形成为具有由高度固化的交联相和富含未固化材料的第二相组成的双相形态。 在双相结构的第二相中发现的未固化未交联材料的所需量为2-70重量％范围，当以5-50重量％的水平存在时，寿命长和电性能特别好的组合， 最佳性能在15-40重量级。 使用本发明的方法的外涂层的双相形态产生良好的磨损率，同时允许电荷的快速传输并因此感光鼓的快速放电性能。

公开(公告)号：US20150185640A1

公开(公告)日：2015-07-02

申请号：US14145097

申请日：2013-12-31

申请人： Lexmark International, Inc.

发明人： Mark Thomas Bellino ,  Gerald Hugh Ciecior ,  Douglas Jeffrey Harris ,  Weimei Luo ,  Brian David Munson ,  Dat Quoc Nguyen ,  Scott Daniel Reeves ,  Tanya Yvonne Thames

IPC分类号： G03G5/147

CPC分类号： G03G5/14734 ,  G03G5/0525 ,  G03G5/0546 ,  G03G5/147 ,  G03G5/14713 ,  G03G5/14717 ,  G03G5/14721 ,  G03G5/14791 ,  G03G5/14795

摘要： An overcoat layer and method to make an overcoated photoconductor drum of an electrophotographic image forming device using irradiation such as with electron beam (EB) or ultraviolet (UV) light is provided. The photoconductor drum is then cured using EB dose of between 10 and 100 kiloGrays (kGy), preferably between 20 and 40 kGys or UV irradiation with an exposure of between 0.1 and 2 J/cm2. The unique overcoat layer of the present invention is formed having a biphasic morphology comprised of a highly cured crosslinked phase and a second phase enriched in uncured material. The desired amount of uncured uncrosslinked material found in the second phase of the biphasic structure, is between 2-70 wt % range, with particularly good combination of long-life and electrical performance when present at the 5-50 wt % level, and the best performance at the 15-40 wt % level. The biphasic morphology of the overcoat layer using the method of the present invention gives rise to the good wear rates while allowing rapid transport of the electrical charge and thus fast discharge properties of the photoconductor drum.

公开(公告)号：US09063441B2

公开(公告)日：2015-06-23

申请号：US14059731

申请日：2013-10-22

申请人： Hirofumi Yamanami ,  Koji Enomoto ,  Naoyuki Esaki

发明人： Hirofumi Yamanami ,  Koji Enomoto ,  Naoyuki Esaki

IPC分类号： G03G5/00 ,  G03G5/05 ,  G03G5/147 ,  G03G21/18

CPC分类号： G03G5/0578 ,  G03G5/0507 ,  G03G5/0546 ,  G03G5/14704 ,  G03G5/14734 ,  G03G5/14773 ,  G03G21/1814 ,  G03G2215/00957

摘要： Provided is an electrophotographic photoconductor including an electroconductive substrate, a photoconductive layer on the electroconductive substrate, and a protection layer on the photoconductive layer, wherein the protection layer contains two or more metal oxides having different average primary particle diameters, a binder resin, and a charge transporting material, the content of the metal oxides in the protection layer is 50% by mass or higher, and the average primary particle diameters of the metal oxides satisfy all of formula (I) to (III) below: d(1)

摘要翻译： 提供了一种电子照相感光体，其包括导电性基体，导电性基体上的感光层和光电导层上的保护层，其中保护层含有两种以上的平均一次粒径不同的金属氧化物，粘合剂树脂和 电荷输送材料中，保护层中的金属氧化物的含量为50质量％以上，金属氧化物的平均一次粒径满足以下所有式（I）〜（III）：d（1）< d（2）式（I）; d（1）/ d（2）＆nlE; 0.25式（II）; 和0.1μm＆nlE; d（2）式（III）其中d（1）表示保护层中包含的两种或更多种金属氧化物的一种金属氧化物的平均一次粒径（μm），d（2）表示 包含在保护层中的两种或更多种金属氧化物的另一种或另一种金属氧化物的平均一次粒径（μm）。

公开(公告)号：US09057987B2

公开(公告)日：2015-06-16

申请号：US13595674

申请日：2012-08-27

申请人： Yasuhiro Oda

发明人： Yasuhiro Oda

IPC分类号： G03G15/09 ,  G03G5/05 ,  G03G5/06 ,  G03G5/07 ,  G03G5/147

CPC分类号： G03G15/0921 ,  G03G5/0592 ,  G03G5/0614 ,  G03G5/075 ,  G03G5/076 ,  G03G5/14791 ,  G03G5/14795 ,  G03G15/09 ,  G03G2215/00957 ,  G03G2215/0648

摘要： An image forming apparatus includes a rotatable photoconductor and a developing device that uses a developer that exhibits magnetism, the developing device including a housing having an opening for development at a position facing the photoconductor, and plural developing rollers that are exposed through the opening in the housing, that rotate without contacting a surface of the photoconductor, and that are arranged without contacting each other in a direction in which the surface of the photoconductor rotates, wherein a minimum distance between an inner surface portion extending to the opening of the housing of the developing device and one of the developing rollers arranged close to the inner surface portion and a minimum distance between the housing and the surface of the photoconductor are each equal to or larger than a minimum distance between the developing rollers.

摘要翻译： 一种图像形成装置包括可旋转的感光体和使用显示磁性的显影剂的显影装置，该显影装置包括在面向感光体​​的位置具有用于显影的开口的壳体，以及通过开口处露出的多个显影辊 壳体，其旋转而不接触光电导体的表面，并且被布置为在光电导体的表面旋转的方向上彼此不相接，其中延伸到壳体的开口的内表面部分之间的最小距离 显影装置和靠近内表面部分布置的显影辊之一和壳体与感光体表面之间的最小距离分别等于或大于显影辊之间的最小距离。

公开(公告)号：US09057972B2

公开(公告)日：2015-06-16

申请号：US13969026

申请日：2013-08-16

申请人： FUJI XEROX CO., LTD.

发明人： Katsumi Nukada ,  Wataru Yamada ,  Hidekazu Hirose ,  Yuko Iwadate ,  Kenji Kajiwara

IPC分类号： G03G5/147 ,  G03G5/14 ,  G03G5/05 ,  G03G5/07

CPC分类号： G03G5/14 ,  G03G5/0535 ,  G03G5/0546 ,  G03G5/0592 ,  G03G5/071 ,  G03G5/14721 ,  G03G5/14734 ,  G03G5/14791 ,  G03G5/14795

摘要： An electrophotographic photoreceptor includes an electroconductive substrate, a photosensitive layer provided on the electroconductive substrate, and an outermost surface layer, wherein the outermost surface layer is a layer constituted with a cured product of a composition including at least one of non-charge transporting compounds represented by formulae (I) and (II), and at least one non-reactive charge transporting material:

摘要翻译： 电子照相感光体包括导电性基体，设置在导电性基体上的感光层和最外表面层，其中，最表面层为由包含至少一种非电荷输送化合物的组合物的固化物构成的层， 通过式（I）和（II），和至少一种非反应性电荷输送材料：

公开(公告)号：US09029054B2

公开(公告)日：2015-05-12

申请号：US13930383

申请日：2013-06-28

申请人： Canon Kabushiki Kaisha

发明人： Atsushi Okuda ,  Michiyo Sekiya ,  Kunihiko Sekido ,  Kenichi Kaku ,  Nobuhiro Nakamura ,  Yota Ito ,  Yuka Ishiduka ,  Hiroyuki Tomono

IPC分类号： G03G5/05 ,  G03G15/00 ,  G03G5/06 ,  G03G5/14 ,  G03G5/147

CPC分类号： G03G5/055 ,  G03G5/0542 ,  G03G5/056 ,  G03G5/0592 ,  G03G5/0605 ,  G03G5/0607 ,  G03G5/0614 ,  G03G5/0648 ,  G03G5/0696 ,  G03G5/142 ,  G03G5/14708 ,  G03G5/14752 ,  G03G15/00 ,  G03G15/751 ,  G03G2215/00957

摘要： An electron transporting layer is a cured layer including carbon atoms, nitrogen atoms and oxygen atoms. When ratios of the number of carbon atoms, ratios of the number of nitrogen atoms, and ratios of the number of oxygen atoms are analyzed at 10 points by an X-ray photoelectron spectroscopy (ESCA), the respective standard deviations, σ(C), σ(N) and σ(O), of the ratios of the number of carbon atoms, the ratios of the number of nitrogen atoms and the ratios of the number of oxygen atoms satisfy the following expressions (1) to (3): σ(C)≦1.5  (1), σ(N)≦1.5  (2), and σ(O)≦1.5  (3).

摘要翻译： 电子传输层是包含碳原子，氮原子和氧原子的固化层。 当通过X射线光电子能谱（ESCA）在10个点分析碳原子数，氮原子数比和氧原子数比的比率时，各自的标准偏差＆ ），＆sgr;（N）和＆sgr;（O），碳原子数比，氮原子数与氧原子数之比满足下式（1）至（ 3）：＆sgr;（C）＆nlE; 1.5（1），＆sgr;（N）＆nlE; 1.5（2）和＆sgr;（O）＆nlE; 1.5（3）。

公开(公告)号：US09005855B2

公开(公告)日：2015-04-14

申请号：US13867604

申请日：2013-04-22

申请人： Fuji Xerox Co., Ltd.

发明人： Yuko Iwadate ,  Katsumi Nukada ,  Wataru Yamada ,  Hidekazu Hirose ,  Tomoya Sasaki ,  Kenji Kajiwara

IPC分类号： G03G5/00 ,  G03G5/047 ,  G03G21/18 ,  G03G5/05 ,  G03G5/06 ,  G03G5/07 ,  G03G5/147

CPC分类号： G03G5/047 ,  G03G5/0514 ,  G03G5/0539 ,  G03G5/0564 ,  G03G5/0596 ,  G03G5/0614 ,  G03G5/075 ,  G03G5/14726 ,  G03G5/14756 ,  G03G5/14795 ,  G03G21/1814

摘要： Provided is an electrophotographic photoreceptor including a conductive substrate; a charge generating layer provided on the conductive substrate; a charge transporting layer provided on the charge generating layer; and an outermost surface layer provided on the charge transporting layer, wherein the charge transporting layer includes a charge transporting material and a polycarbonate copolymer having a solubility parameter as calculated by a Feders method of from 11.40 to 11.75, and the outermost surface layer includes a charge transporting material, fluorine-containing resin particles, and a fluorine-containing dispersant.

摘要翻译： 提供一种电子照相感光体，包括导电性基材; 设置在所述导电性基板上的电荷产生层; 设置在电荷产生层上的电荷输送层; 以及设置在所述电荷输送层上的最外表面层，其中所述电荷输送层包括电荷输送材料和通过由Feders法计算的溶解度参数为11.40至11.75的聚碳酸酯共聚物，并且所述最外表面层包含电荷 运输材料，含氟树脂颗粒和含氟分散剂。

公开(公告)号：US08956792B2

公开(公告)日：2015-02-17

申请号：US13443701

申请日：2012-04-10

申请人： Atsushi Okuda ,  Harunobu Ogaki ,  Kazunori Noguchi ,  Takashi Anezaki ,  Kazuhisa Shida ,  Shio Murai

发明人： Atsushi Okuda ,  Harunobu Ogaki ,  Kazunori Noguchi ,  Takashi Anezaki ,  Kazuhisa Shida ,  Shio Murai

IPC分类号： G03G5/05 ,  G03G5/147

CPC分类号： G03G5/0578 ,  G03G5/0564 ,  G03G5/14756 ,  G03G5/14773

摘要： Provided is an electrophotographic photosensitive member which is excellent in terms of both continuous reduction of contact stress with contact members and the like and potential stability during repeated use. A charge transport layer which serves as a surface layer of an electrophotographic photosensitive member has a matrix-domain structure including a matrix containing a component [β] (polycarbonate resin D having a specific repeating structural unit) and a charge-transporting substance and domains containing a component [α] (polycarbonate resin A having a repeating structural unit including a specific siloxane moiety).

摘要翻译： 提供了一种电子照相感光构件，其在接触构件的接触应力的连续降低等方面和在重复使用期间的电位稳定性方面都是优异的。 用作电子照相感光构件的表面层的电荷输送层具有包含基质的基体结构结构，所述基体含有组分[（b）]（具有特定重复结构单元的聚碳酸酯树脂D）和电荷输送物质和畴 含有组分[α]（具有包含特定硅氧烷部分的重复结构单元的聚碳酸酯树脂A）。

公开(公告)号：US08951703B2

公开(公告)日：2015-02-10

申请号：US13731555

申请日：2012-12-31

申请人： Lexmark International, Inc.

发明人： Scott Daniel Reeves ,  David Glen Black

IPC分类号： G03G5/147

CPC分类号： G03G5/14734 ,  G03G5/14769 ,  G03G5/14786 ,  G03G5/14791

摘要： An overcoat layer for an organic photoconductor drum of an electrophotographic image forming device is provided. The overcoat layer is prepared from a curable composition including a urethane resin having at least six radical polymerizable functional groups. The at least six radical polymerizable functional groups may include acrylate group, methacrylate group, styrenic group, allylic group, vinylic group, glycidyl ether group, epoxy group, or combinations thereof. This overcoat layer has an improved wear resistance, thus protecting the organic photoconductor drum from damage and extending its useful life.

摘要翻译： 提供了一种用于电子照相图像形成装置的有机感光鼓的外涂层。 外涂层由包含具有至少六个可自由基聚合的官能团的聚氨酯树脂的可固化组合物制备。 所述至少六个自由基聚合性官能团可以包括丙烯酸酯基，甲基丙烯酸酯基，苯乙烯基，烯丙基，乙烯基，缩水甘油醚基，环氧基或其组合。 该外涂层具有改善的耐磨性，从而保护有机感光鼓免受损坏并延长其使用寿命。