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公开(公告)号：US20190196352A1
公开(公告)日：2019-06-27
申请号：US16183268
申请日：2018-11-07
申请人： Konica Minotla, Inc.
发明人： Daisuke KODAMA , Keiichi INAGAKI
CPC分类号： G03G21/0035 , G03G5/0517 , G03G5/0592 , G03G5/0614 , G03G5/14704 , G03G5/14708 , G03G5/14791 , G03G15/0178 , G03G15/751
摘要： A electrophotographic image forming device using an organic photoreceptor, includes a plurality of image forming units each including at least: an electrostatic latent image former; a developer; a lubricant supplier; and a cleaner including a cleaning blade and a cleaning assist brush, wherein at least one combination composed of two adjacent image forming units including toners having different colors satisfies the following formula (1) if a ratio of a circumferential speed of the cleaning assist brush with respect to a circumferential speed of an organic photoreceptor included in an image forming unit A is represented by θ1 and a ratio of a circumferential speed of the cleaning assist brush with respect to a circumferential speed of an organic photoreceptor included in an image forming unit B is represented by θ2. [Numerical formula 1] θ2>θ1 (1)
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公开(公告)号：US09958796B2
公开(公告)日：2018-05-01
申请号：US15442846
申请日：2017-02-27
申请人： Konica Minolta, Inc.
发明人： Masanori Yumita , Hirofumi Hayata
CPC分类号： G03G5/047 , G03G5/0539 , G03G5/0609 , G03G5/0629 , G03G5/0633 , G03G5/064 , G03G5/0661 , G03G5/142 , G03G5/14704 , G03G5/14708 , G03G5/14713 , G03G5/14726 , G03G5/14734 , G03G5/14786 , G03G5/14791 , G03G5/14795 , G03G15/00 , G03G15/75 , G03G2215/0135
摘要： An electrophotographic photoreceptor includes an intermediate layer, a photosensitive layer, and a surface layer laminated on a conductive support in this order, wherein a cured product of a polymerizable monomer contains an electron transport agent and n-type metal oxide fine particles to which a reactive organic group is bonded in the surface layer.
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公开(公告)号：US20180095404A1
公开(公告)日：2018-04-05
申请号：US15724806
申请日：2017-10-04
申请人： Konica Minolta, Inc.
发明人： Toshiyuki FUJITA , Mari UEDA , Haruo HORIGUCHI
CPC分类号： G03G5/14704 , G03G5/14713 , G03G5/14717 , G03G5/14791 , G03G5/14795 , G03G7/0013 , G03G15/751
摘要： An electrophotographic photoconductor (photoconductor) according to the embodiment includes a conductive support, a photosensitive layer, and a protective layer. The protective layer is composed of a cured product as one body obtained by a radical reaction of a composition containing a radical polymerizable monomer having a radical polymerizable functional group, a metal oxide fine particle having a radical polymerizable functional group, and camphorquinone or a derivative thereof. The photoconductor is installed in an image forming apparatus equipped with a cleaning device for removing transfer residual toner on the photoconductor, and the cleaning device includes an elastic cleaning member disposed so that it can come into contact with the surface of the photoconductor.
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公开(公告)号：US09921500B2
公开(公告)日：2018-03-20
申请号：US15283090
申请日：2016-09-30
申请人： XEROX CORPORATION
CPC分类号： G03G5/14747 , G03G5/0557 , G03G5/0592 , G03G5/0614 , G03G5/1476 , G03G5/14769 , G03G5/14791 , G03G7/0026
摘要： A method of forming an overcoat layer. The method comprises providing a substrate having an imaging structure formed thereon, the imaging structure comprising (i) a charge transport layer and a charge generating layer, or (ii) an imaging layer comprising both charge generating material and charge transport material. An overcoat composition is deposited on the imaging structure, the overcoat composition comprising a charge transport molecule, a fluorinated building block, a leveling agent, a liquid carrier and optionally a first catalyst. The fluorinated building block is a fluorinated alkyl monomer substituted at the α and ω positions with a hydroxyl, carboxyl, carbonyl or aldehyde functional group or the anhydrides of any of those functional groups. The overcoat composition is cured to form an overcoat layer that is a fluorinated structured organic film, the curing comprising treating an outer surface of the overcoat composition with at least one cross-linking process. The crosslinking process forms a cross-linking gradient in the overcoat layer. If the overcoat composition comprises the first catalyst, there is an insufficient amount of the first catalyst to fully cross-link the overcoat layer.
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公开(公告)号：US09869942B2
公开(公告)日：2018-01-16
申请号：US15081161
申请日：2016-03-25
申请人： Konica Minolta, Inc.
CPC分类号： G03G5/147 , G03G5/082 , G03G5/08278 , G03G5/14704 , G03G5/14791 , G03G15/751 , G03G21/0094 , G03G2215/00957
摘要： An imaging apparatus including: an electrophotographic photoreceptor; a charging unit to charge the surface of the electrophotographic photoreceptor; an exposing unit to perform exposure of the electrophotographic photoreceptor charged by the charging unit; a developing unit to feed a toner to the electrophotographic photoreceptor exposed by the exposing unit to form a toner image; a transfer unit to transfer the toner image formed on the electrophotographic photoreceptor; a lubricant feeding unit to feed a lubricant onto the surface of the electrophotographic photoreceptor; and a cleaning unit to remove the residual toner on the surface of the electrophotographic photoreceptor, wherein the electrophotographic photoreceptor includes a conductive support, a photoreceptive layer, and a protective layer disposed in sequence, the protective layer includes a resin containing a particulate P-type semiconductor, and the protective layer has a surface roughness Rz of 0.030 μm or more and 0.075 μm or less.
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6.发明申请公开(公告)号：US20170184984A1
公开(公告)日：2017-06-29
申请号：US14982065
申请日：2015-12-29
IPC分类号： G03G15/00
CPC分类号： G03G5/047 , G03G5/0614 , G03G5/071 , G03G5/14734 , G03G5/14786 , G03G5/14791 , G03G5/14795
摘要： An improved organic photoconductor drum having a protective overcoat layer and method to make the same is provided. The protective overcoat layer is prepared from a curable composition including a crosslinkable hole transport molecule containing four radical polymerizable functional groups in combination with a crosslinkable acrylate having at least 6 functional groups.
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公开(公告)号：US20170131646A1
公开(公告)日：2017-05-11
申请号：US15342868
申请日：2016-11-03
发明人： Masaki Nonaka , Ryoichi Tokimitsu , Shinji Takagi , Koichi Nakata , Haruki Mori
IPC分类号： G03G15/00
CPC分类号： G03G5/0592 , G03G5/0525 , G03G5/0614 , G03G5/14769 , G03G5/14791
摘要： In an electrophotographic photosensitive member including a support and a photosensitive layer formed on the support, a surface layer of the electrophotographic photosensitive member contains a cured product obtained by copolymerizing at least one compound (i) selected from the group consisting of a triphenylamine compound having a hydroxymethyl group and a benzidine compound having a hydroxymethyl group, and at least one compound (ii) selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2), a compound represented by the following formula (3), and a compound represented by the following formula (4):
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8.发明申请公开(公告)号：US20160357119A1
公开(公告)日：2016-12-08
申请号：US15244400
申请日：2016-08-23
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.
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公开(公告)号：US09482970B2
公开(公告)日：2016-11-01
申请号：US14373581
申请日：2012-03-30
申请人： Krzysztof Nauka , Zhang-Lin Zhou , Lihua Zhao
发明人： Krzysztof Nauka , Zhang-Lin Zhou , Lihua Zhao
IPC分类号： G03G5/147
CPC分类号： G03G5/14726 , G03G5/147 , G03G5/14704 , G03G5/14786 , G03G5/14791 , G03G2215/00957
摘要： An organic photoconductor includes: a conductive substrate; a charge generation layer formed on the conductive substrate; a charge transport layer formed on the charge generation layer; and a protective coating formed on the charge transport layer. The protective coating comprises nanoparticles incorporated in an in-situ cross-linked polymer matrix. A process for increasing mechanical strength in an organic photoconductor is also provided.
摘要翻译： 有机光电导体包括：导电基板; 形成在导电基板上的电荷产生层; 形成在电荷产生层上的电荷传输层; 以及形成在电荷输送层上的保护涂层。 保护性涂层包括掺入原位交联聚合物基质中的纳米颗粒。 还提供了一种用于提高有机感光体中机械强度的方法。
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10.发明授权公开(公告)号：US09477164B2
公开(公告)日：2016-10-25
申请号：US14514203
申请日：2014-10-14
发明人： Shinji Takagi , Koichi Nakata
CPC分类号： G03G5/14773 , G03G5/0546 , G03G5/0589 , G03G5/0592 , G03G5/071 , G03G5/14734 , G03G5/14791
摘要： A surface layer of an electrophotographic photosensitive member contains a cured product of a composition containing a hole transporting substance having an acryloyloxy group and/or a methacryloyloxy group and a siloxane-modified acrylic compound.
摘要翻译： 电子照相感光构件的表面层含有含有具有丙烯酰氧基和/或甲基丙烯酰氧基的空穴传输物质和硅氧烷改性的丙烯酸类化合物的组合物的固化物。
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