公开(公告)号：US20170357171A1

公开(公告)日：2017-12-14

申请号：US15340586

申请日：2016-11-01

申请人： FUJI XEROX CO., LTD.

发明人： Masashi IKEDA ,  Emi TAKAHASHI ,  Yuka ISHIHARA ,  Manabu FURUKI ,  Makoto KAMISAKI ,  Teppei YAWADA

IPC分类号： G03G9/10 ,  G03G21/18

CPC分类号： G03G9/10 ,  G03G9/09716 ,  G03G9/09725 ,  G03G21/18 ,  G03G21/1814

摘要： An electrostatic charge image developer includes: toner particles; silica particles treated with a silicone oil, which are externally added to the toner particles; and a carrier, wherein a volume average particle diameter of the carrier is equal to or greater than 20 μm and smaller than 30 μm, and a quantity ratio of an elemental silicon derived from a silicone oil and an elemental silicon derived from silica which are present on the surface of the carrier (silicone oil-derived elemental silicon/silica-derived elemental silicon) is in a range of 0.05 to 0.2.

公开(公告)号：US09594325B2

公开(公告)日：2017-03-14

申请号：US14829339

申请日：2015-08-18

申请人： KYOCERA Document Solutions Inc.

发明人： Yusuke Kurano

IPC分类号： G03G13/16 ,  G03G13/01 ,  G03G9/10 ,  G03G9/113 ,  G03G15/16 ,  G03G9/093

CPC分类号： G03G9/1132 ,  G03G9/10 ,  G03G13/013 ,  G03G13/16 ,  G03G15/1605 ,  G03G2215/0132 ,  G03G2215/0607

摘要： A two-component developer includes a toner and a carrier. The toner includes a plurality of toner particles. The carrier includes a plurality of carrier particles. Each of the toner particles includes a toner core and a shell layer disposed over the surface of the toner core. The toner has a charge decay constant of at least 0.020 and no greater than 0.050 as measured with the toner particles in an external additive-free state. The carrier has a volume resistivity of at least 1.0×1012 Ω·cm.

摘要翻译： 双组分显影剂包括调色剂和载体。 调色剂包括多个调色剂颗粒。 载体包括多个载体颗粒。 每个调色剂颗粒包括调色剂芯和设置在调色剂芯的表面上的壳层。 调色剂的电荷衰减常数至少为0.020且不大于0.050，其用调色剂颗粒在外部无添加剂状态下测量。 载体的体积电阻率至少为1.0×1012Ω·cm。

公开(公告)号：US20160282741A1

公开(公告)日：2016-09-29

申请号：US15063930

申请日：2016-03-08

申请人： Konica Minolta, Inc.

发明人： Yasuko UCHINO ,  Junya ONISHI ,  Natsuko FUJISAKI ,  Anju HORI ,  Junya UEDA ,  Takaki KAWAMURA ,  Ikuko SAKURADA

IPC分类号： G03G9/10

CPC分类号： G03G9/10 ,  G03G9/0823 ,  G03G9/1133 ,  G03G9/1139 ,  G03G13/013 ,  G03G15/09 ,  G03G15/6585 ,  G03G2215/0135 ,  G03G2215/0607 ,  G03G2215/0609

摘要： The present invention relates to an image forming method of forming a color toner image and a white toner image using an image forming apparatus having a plurality of developing machines, in which the color toner image is formed using a color developer containing at least one color toner selected from the group consisting of a yellow toner, a magenta toner, and a cyan toner and a first carrier, the white toner image is formed using a white developer containing a white toner containing at least titanium oxide as a pigment and a second carrier, and formula (1) below is satisfied wherein Ic (μA) is a dynamic current value of the first carrier at 100 V and Iw (μA) is a dynamic current value of the second carrier at 100 V. According to the present invention, it is possible to suppress image unevenness of a color toner image and a white toner image on a recording medium. Iw

公开(公告)号：US20150183899A1

公开(公告)日：2015-07-02

申请号：US14643707

申请日：2015-03-10

申请人： Xerox Corporation ,  National Research Council of Canada

发明人： Richard PN Veregin ,  Qingbin Li ,  Andriy Kovalenko ,  Sergey Gusarov

IPC分类号： C08F28/06 ,  C08F22/10

CPC分类号： C08F28/06 ,  C08F22/10 ,  G03G9/10 ,  G03G9/107 ,  G03G9/1133 ,  G03G9/1138 ,  G03G9/1139 ,  Y10T428/2982

摘要： The disclosure describes dry acrylate resin particles, optionally, with a C/O of at least about 4, comprising a heterocycle comprising sulfur, exhibiting high charge and improved RH sensitivity.

摘要翻译： 本公开描述了任选地具有至少约4的C / O的干丙烯酸酯树脂颗粒，其包含含有高电荷和改善的RH灵敏度的包含硫的杂环。

公开(公告)号：US09034552B2

公开(公告)日：2015-05-19

申请号：US13641202

申请日：2012-03-01

申请人： Tomohide Iida ,  Tomoya Yamada ,  Takashi Fujiwara

发明人： Tomohide Iida ,  Tomoya Yamada ,  Takashi Fujiwara

IPC分类号： G03G9/113 ,  G03G9/10 ,  G03G9/107

CPC分类号： G03G9/10 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/113 ,  G03G9/1131 ,  G03G9/1136

摘要： The carrier core particles for electrophotographic developer have a volume size distribution with a median particle size ranging from 30 μm to 40 μm, the ratio of the carrier core particles having a diameter of 22 μm or lower in the volume size distribution is from 1.0% to 2.0%, the ratio of the carrier core particles having a diameter of 22 μm or lower in a number size distribution is 10% or lower, and the magnetization of the carrier core particles in an external magnetic field of 1000 Oe is from 50 emu/g to 75 emu/g.

摘要翻译： 用于电子照相显影剂的载体芯颗粒具有中值粒度范围为30μm至40μm的体积分布，体积尺寸分布中直径为22μm或更小的载体芯颗粒的比例为1.0％至 2.0％时，数均粒径分布中直径为22μm以下的载体芯颗粒的比率为10％以下，在1000Oe的外部磁场中的载体芯颗粒的磁化强度为50emu / g至75emu / g。

公开(公告)号：US08974995B2

公开(公告)日：2015-03-10

申请号：US13855866

申请日：2013-04-03

申请人： Xerox Corporation ,  National Research Council of Canada

发明人： Richard P N Veregin ,  Qingbin Li ,  Andriy Kovalenko ,  Sergey Gusarov

IPC分类号： G03G9/10

CPC分类号： C08F28/06 ,  C08F22/10 ,  G03G9/10 ,  G03G9/107 ,  G03G9/1133 ,  G03G9/1138 ,  G03G9/1139 ,  Y10T428/2982

摘要： The disclosure describes acrylate carrier resins, optionally, with a C/O of at least about 4, comprising a heterocycle comprising sulfur, exhibiting high charge and improved RH sensitivity, carrier compositions comprising the acrylate-coated carriers and developers comprising a toner and the acrylate-coated carrier.

摘要翻译： 本公开描述了丙烯酸酯载体树脂，任选地具有至少约4的C / O，其包含含有硫的杂环，表现出高电荷和改善的RH敏感性，载体组合物包含丙烯酸酯涂覆的载体和包含调色剂和丙烯酸酯的显影剂 涂层载体。

公开(公告)号：US20140377697A1

公开(公告)日：2014-12-25

申请号：US14376225

申请日：2013-02-27

申请人： CANON KABUSHIKI KAISHA

发明人： Chiaki Nishiura ,  Yasuaki Murai ,  Yuki Hasegawa ,  Waka Hasegawa ,  Masashi Kawamura ,  Taiki Watanabe ,  Masanori Seki ,  Ayano Mashida ,  Takayuki Toyoda ,  Masashi Hirose

IPC分类号： G03G9/10 ,  G03G9/09

CPC分类号： G03G9/10 ,  C08F8/30 ,  C08F12/08 ,  C08F20/06 ,  C08F20/10 ,  C08F20/54 ,  C08F212/08 ,  C08F2438/01 ,  C09B29/337 ,  C09B31/10 ,  C09B31/11 ,  C09B35/033 ,  C09B67/0002 ,  C09B67/0041 ,  C09B67/009 ,  C09B69/00 ,  C09B69/106 ,  C09D7/41 ,  G03G9/0806 ,  G03G9/08704 ,  G03G9/08791 ,  G03G9/08795 ,  G03G9/091 ,  G03G9/0918 ,  C08F220/36 ,  C08F2/38 ,  C08F2220/1825 ,  C08F220/06 ,  C08F2220/603 ,  C08F220/14 ,  C08F220/58 ,  C08F220/54 ,  C08F12/28 ,  C08F2220/1891

摘要： An object of the present invention is to provide a cyan toner having a high coloring ability, enabling suppression of fogging, and having high transfer efficiency. The object can be attained by a toner including toner particles containing a binder resin, a compound having a polymeric portion bound to an azo skeleton, and a phthalocyanine pigment as a colorant.

摘要翻译： 本发明的目的是提供具有高着色能力的青色调色剂，能够抑制起雾，并具有高的转印效率。 该目的可以通过包括含有粘合剂树脂的调色剂颗粒，具有与偶氮骨架结合的聚合物部分的化合物和作为着色剂的酞菁颜料的调色剂来实现。

公开(公告)号：US20140072349A1

公开(公告)日：2014-03-13

申请号：US14022691

申请日：2013-09-10

申请人： Shingo SAKASHITA ,  Junichi AWAMURA ,  Tsuneyasu NAGATOMO ,  Satoshi KOJIMA ,  Tomoki MURAYAMA

发明人： Shingo SAKASHITA ,  Junichi AWAMURA ,  Tsuneyasu NAGATOMO ,  Satoshi KOJIMA ,  Tomoki MURAYAMA

IPC分类号： G03G15/09

CPC分类号： G03G15/0822 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/10 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/1132 ,  G03G9/1139

摘要： A developing device, including: a developer bearing member, which is disposed opposite to an electrostatic latent image bearing member and which bears thereon a developer for developing an electrostatic latent image formed on the electrostatic latent image bearing member and conveys the developer to a developing region, wherein the developer includes a toner and a carrier, the toner containing: a toner base containing a binder resin and a colorant; and an external additive, wherein the external additive contains coalescent particles each made up of a plurality of coalescing primary particles, and wherein a work function Wc of the carrier and a work function Ws of the developer bearing member satisfy a relationship of the following formula (1): Ws−Wc≧0.4 eV  (1)

摘要翻译： 一种显影装置，包括：显影剂承载构件，其与静电潜像承载构件相对地设置并承载有形成在静电潜像承载构件上的静电潜像的显影剂，并将显影剂输送到显影区域 其中所述显影剂包括调色剂和载体，所述调色剂含有：含有粘合剂树脂和着色剂的调色剂基料; 和外部添加剂，其中所述外部添加剂包含各自由多个聚结一次颗粒构成的聚结剂颗粒，并且其中载体的功函数Wc和显影剂承载构件的功函数Ws满足以下关系式（ 1）：Ws-Wc> = 0.4eV（1）

公开(公告)号：US08637218B2

公开(公告)日：2014-01-28

申请号：US13556549

申请日：2012-07-24

申请人： Koichi Sakata ,  Shigenori Yaguchi ,  Kimitoshi Yamaguchi ,  Toyoshi Sawada ,  Hiroshi Tohmatsu ,  Hiroyuki Kishida

发明人： Koichi Sakata ,  Shigenori Yaguchi ,  Kimitoshi Yamaguchi ,  Toyoshi Sawada ,  Hiroshi Tohmatsu ,  Hiroyuki Kishida

IPC分类号： G03G9/113

CPC分类号： G03G9/10 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1132 ,  G03G9/1136

摘要： A carrier for developing electrostatic latent image, including a core material; and a coated layer covering the core material, including a binder resin and a particulate material, wherein the core material is exposed on the surface of the carrier at an areal ratio of from 0.1 to 5.0% and has the largest exposed part having an areal ratio not greater than 0.03%, and wherein the coated layer comprises the particulate material in an amount of from 100 to 500 parts by weight per 100 parts by weight of the binder resin.

摘要翻译： 用于显影静电潜像的载体，包括芯材; 以及覆盖所述芯材的涂层，包括粘合剂树脂和颗粒材料，其中所述芯材料以0.1至5.0％的面积比曝露在所述载体的表面上，并且具有最大的暴露部分具有面积比 不大于0.03％，并且其中所述涂层包含每100重量份粘合剂树脂100至500重量份的颗粒材料。

公开(公告)号：US08535867B2

公开(公告)日：2013-09-17

申请号：US13020455

申请日：2011-02-03

申请人： Tomoyuki Suwa ,  Toru Iwata ,  Koji Aga

发明人： Tomoyuki Suwa ,  Toru Iwata ,  Koji Aga

IPC分类号： G03G9/08

CPC分类号： G03G9/107 ,  G03G9/10

摘要： There is provided a ferrite core material for an electrophotographic developer, the ferrite core material having a ferrite particle composition represented by the formula (1) shown below, containing SrO replacing a part of (MnO) and/or (MgO) in the formula (1) shown below, and having a Cl concentration of 0.1 to 100 ppm, as measured by an elution method of the ferrite core material: (MnO)x(MgO)y(Fe2O3)z  (1) wherein x=35 to 45 mol %, y=5 to 15 mol %, z=40 to 60 mol %, and x+y+z=100 mol %.

摘要翻译： 提供一种用于电子照相显影剂的铁氧体芯材料，该铁氧体磁芯材料具有如下所示的式（1）所示的铁氧体颗粒组合物，其含有SrO，其代替式（1）中的（MnO）和/或（MgO）的一部分， 1），并且通过铁氧体磁心材料：（MnO）x（MgO）y（Fe 2 O 3）z（1）的洗脱方法测定的Cl浓度为0.1〜100ppm，其中x = 35〜45mol ％，y = 5〜15摩尔％，z = 40〜60摩尔％，x + y + z = 100摩尔％。