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61. 发明专利

JP2012118429A Image forming method 有权
标题翻译：图像形成方法
公开(公告)号：JP2012118429A
公开(公告)日：2012-06-21
申请号：JP2010270000
申请日：2010-12-03
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： IWATSUKI HITOSHI , TANIGUCHI SHIGENORI , SAWADA TOYOSHI , HIGASHIMATSU HIROSHI , TANO TOYOAKI , TAKII MARIKO , MABUCHI HIROYUKI , TERAI JUNICHI , KATO KOICHI
IPC分类号： G03G9/113 , G03G15/08 , G03G15/09
摘要： PROBLEM TO BE SOLVED: To provide a developing device having a structure in which a developer may be securely recovered over a long period of time, by making it easy for a developer to be separated from a developer carrier.SOLUTION: In an image forming method using a developing device which comprises a developer carrier for supplying a two-component developer including toner and a carrier to an electrostatic latent image formed on an image carrier and in which rotatable magnetic field generating means provided with magnetic poles for napping and conveying a developer is disposed inside the developer carrier, the carrier has a core material and a coating film for coating the core material and the surface is coated with the coating film. The coating film includes a binder resin and particles and has an average height difference of 0.05 μm or more and 2.0 μm or less. The ratio of the average particle diameter of the particles to the average film thickness of the coating film is 0.01 or more and 1.0 or less.
摘要翻译：要解决的问题：提供一种具有结构的显影装置，其中显影剂可以长时间可靠地回收，通过使显影剂容易与显影剂载体分离。解决方案：在使用显影装置的图像形成方法中，该显影装置包括显影剂载体，用于将包含调色剂和载体的双组分显影剂供应到形成在图像载体上的静电潜像，并且其中设置有可旋转的磁场产生装置在显影剂载体内部设置用于起绒和输送显影剂的磁极，载体具有芯材和用于涂覆芯材的涂膜，并且表面涂覆有涂膜。涂膜包括粘合剂树脂和颗粒，并且具有0.05μm以上且2.0μm以下的平均高度差。粒子的平均粒径与涂膜的平均膜厚的比例为0.01以上且1.0以下。版权所有（C）2012，JPO＆INPIT

62. 发明专利

JP2012083715A Carrier for two-component developer, electrostatic latent image developer using the carrier, color toner developer, developer for replenishment, image forming method, process cartridge having electrostatic latent image developer, and image forming apparatus 有权
标题翻译：用于双组分开发者的载体，使用载体，色调剂开发者，用于再现的显影剂，图像形成方法，具有静电图像显影剂的处理盒和图像形成装置的静电图像显影剂
公开(公告)号：JP2012083715A
公开(公告)日：2012-04-26
申请号：JP2011177444
申请日：2011-08-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KISHIDA HIROYUKI , TANIGUCHI SHIGENORI , YAMAGUCHI KIMITOSHI , SAWADA TOYOSHI , HIGASHIMATSU HIROSHI , SAKATA KOICHI , IWATSUKI HITOSHI , TANO TOYOAKI , TAKII MARIKO
IPC分类号： G03G9/113 , G03G9/107 , G03G15/08
CPC分类号： G03G15/08 , G03G9/1075 , G03G9/1131 , G03G9/1133 , G03G9/1139 , G03G2215/0607
摘要： PROBLEM TO BE SOLVED: To provide a carrier for a electrostatic latent image development, the carrier allowing use of a conventional developing device without greatly changing a carrier resistance or magnetization of the core material, preventing deposition of the carrier and to be used for a two-component developer having high picture quality and high durability, and to provide an electrostatic latent image developer, an image forming method and an image forming apparatus using the carrier.SOLUTION: The carrier for electrostatic latent image developer comprises a magnetic core particle and a resin layer coating the surface of the particle. The core particle has a shape factor SF2 of 130 or more and 160 or less; and the resin layer contains conductive fine particles and a resin prepared by heating a copolymer of a (meth)acrylate monomer having a trisiloxyl silyl group and a (meth)acrylate monomer having a monoalkyl dialkoxy silyl group.
摘要翻译：要解决的问题：为了提供静电潜像显影用载体，载体允许使用常规的显影装置，而不会大大改变芯材的载流子阻力或磁化强度，防止载体的沉积和使用用于具有高图像质量和高耐久性的双组分显影剂，并提供静电潜像显影剂，图像形成方法和使用该载体的图像形成装置。解决方案：静电潜像显影剂载体包括磁芯颗粒和涂覆颗粒表面的树脂层。核心颗粒的形状因子SF2为130以上且160以下; 树脂层含有导电性微粒和通过加热具有三羟甲基酰基甲硅烷基的（甲基）丙烯酸酯单体与具有单烷基二烷氧基甲硅烷基的（甲基）丙烯酸酯单体）的共聚物而制备的树脂。版权所有（C）2012，JPO＆INPIT

63. 发明专利

JP2012058448A Carrier for electrostatic latent image developer and electrostatic latent image developer 有权
标题翻译：静电图像发生器和静电图像发生器的载体
公开(公告)号：JP2012058448A
公开(公告)日：2012-03-22
申请号：JP2010200891
申请日：2010-09-08
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANO TOYOAKI , TANIGUCHI SHIGENORI , SAWADA TOYOSHI , YAMAGUCHI KIMITOSHI , IWATSUKI HITOSHI , HIGASHIMATSU HIROSHI , SAKATA KOICHI , KISHIDA HIROYUKI , TAKII MARIKO
IPC分类号： G03G9/113
摘要： PROBLEM TO BE SOLVED: To provide a carrier having a coating with excellent hardness and toughness (flexibility and elasticity), as well as excellent abrasion resistance (chipping and peeling).SOLUTION: A carrier for an electrostatic latent image developer is formed of magnetized core material particles and a resin layer that coats the surface of the core material particles. The resin layer includes an acrylate-based resin having a siloxane bond, an acrylate-based resin having a silanol group precursor, and conductive particulates; and the density of the conductive particulates of the resin layer is lower toward the surface of the resin layer.
摘要翻译：要解决的问题：提供具有优异的硬度和韧性（柔韧性和弹性）的涂层以及优异的耐磨性（切屑和剥离）的载体。解决方案：用于静电潜像显影剂的载体由磁化的芯材颗粒和涂覆芯材颗粒的表面的树脂层形成。树脂层包括具有硅氧烷键的丙烯酸酯类树脂，具有硅烷醇基前体的丙烯酸酯类树脂和导电性微粒; 并且树脂层的导电性微粒的密度朝向树脂层的表面较低。版权所有（C）2012，JPO＆INPIT

64. 发明专利

JP2012058422A Electrostatic latent image developing method 有权
标题翻译：静电图像发展方法
公开(公告)号：JP2012058422A
公开(公告)日：2012-03-22
申请号：JP2010200386
申请日：2010-09-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAGUCHI KIMITOSHI , TANIGUCHI SHIGENORI , IWATSUKI HITOSHI , TAKII MARIKO , SAWADA TOYOSHI , TANO TOYOAKI , HIGASHIMATSU HIROSHI , SAKATA KOICHI , KISHIDA HIROYUKI , YAMADA SAORI
IPC分类号： G03G9/113 , G03G15/08 , G03G15/09
CPC分类号： G03G9/1139 , G03G9/107 , G03G9/1136 , G03G2215/0609
摘要： PROBLEM TO BE SOLVED: To provide a magnet rotation developing system having less toner spent to a carrier and excellent chipping/peeling resistance of a coating over a long period.SOLUTION: A carrier for an electrostatic latent image developer formed of magnetized core material particles and a resin layer that coats the surface of the particles. The resin layer includes conductive particulates and resin obtained by subjecting a copolymer including at least a tris (trialkylsiloxy) silane and a radical polymerizable silane to heating treatment; and the conductive particulate has a substrate including an alumina with a conductive coating layer on the surface thereof.
摘要翻译：要解决的问题：提供一种磁体旋转显影系统，其具有较少的调色剂消耗到载体上，并且涂层长时间具有优异的耐碎/剥离性。解决方案：用于由磁化芯材料颗粒形成的静电潜像显影剂的载体和涂覆颗粒表面的树脂层。树脂层包括通过使包含至少三（三烷基甲硅烷氧基）硅烷和自由基聚合性硅烷的共聚物进行加热处理而获得的导电性微粒和树脂; 导电性粒子的表面具有含有导电性涂层的氧化铝的基材。版权所有（C）2012，JPO＆INPIT

65. 发明专利

JP2012058401A Developer for electrostatic charge image development, developing device, image forming apparatus, image forming method, and process cartridge 审中-公开
标题翻译：用于静电电荷图像开发的开发者，开发设备，图像形成设备，图像形成方法和处理盒
公开(公告)号：JP2012058401A
公开(公告)日：2012-03-22
申请号：JP2010200093
申请日：2010-09-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAKATA KOICHI , TANIGUCHI SHIGENORI , SAWADA TOYOSHI , YAMAGUCHI KIMITOSHI , IWATSUKI HITOSHI , HIGASHIMATSU HIROSHI , YAMADA SAORI , KISHIDA HIROYUKI , TANO TOYOAKI , TAKII MARIKO
IPC分类号： G03G9/113 , G03G9/09
摘要： PROBLEM TO BE SOLVED: To provide a carrier having an excellent toner spent property and abrasion resistance (chipping and peeling) of a coating, developer having the carrier, a container including the developer, and an image forming method and a process cartridge using the developer.SOLUTION: A carrier for an electrostatic latent image developer formed of magnetized core material particles and a resin layer that coats the surface of the particles. The resin layer includes resin obtained by subjecting a copolymer including a tris (trialkylsiloxy) silane and a radical polymerizable silane to heating treatment, as well as conductive particulates formed of cerium oxide.
摘要翻译：要解决的问题：为了提供具有优异的调色剂废弃性能和耐磨性（切屑和剥离）的载体，具有载体的显影剂，包括显影剂的容器和图像形成方法以及处理盒使用开发者解决方案：用于由磁化芯材料颗粒形成的静电潜像显影剂的载体和涂覆颗粒表面的树脂层。树脂层包括通过对包含三（三烷基甲硅烷氧基）硅烷和可自由基聚合的硅烷的共聚物进行加热处理以及由氧化铈形成的导电颗粒而获得的树脂。版权所有（C）2012，JPO＆INPIT

66. 发明专利

JP2012053448A Developing method and image forming method 有权
标题翻译：发展方法和图像形成方法
公开(公告)号：JP2012053448A
公开(公告)日：2012-03-15
申请号：JP2011145251
申请日：2011-06-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAKAJIMA HISASHI , YAMAGUCHI KIMITOSHI , TANIGUCHI SHIGENORI , IWATSUKI HITOSHI , TANO TOYOAKI , TAKII MARIKO , MASUDA MINORU , SAKATA KOICHI , YAMADA SAORI , KISHIDA HIROYUKI
IPC分类号： G03G9/113
CPC分类号： G03G9/1075 , G03G9/107 , G03G9/1136 , G03G9/1137
摘要： PROBLEM TO BE SOLVED: To provide a developing method and an image forming method capable of suppressing changes in a charge amount and a volume resistivity of a carrier even using a ultrahigh speed copying machine.SOLUTION: The developing method includes developing an electrostatic latent image borne on a photoreceptor P using a developer D including a toner T and a carrier borne by a developing roll, the linear velocity on the surface of the developing roll is not less than 300 mm/sec but not more than 2,000 mm/sec. The carrier includes a particulate core material, and a layer formed on a surface of the core material and including a crosslinked material obtained by crosslinking a resin including a constitutional unit (1) represented by 3-methacryloxy propyl tris(trimethyl siloxy) silane and the like as a monomer and defined separately by a general formula, and a constitutional unit (2) represented by 3-methacryloxy propyl trimethoxysilane and the like as a monomer and defined separately by a general formula. Each of the constitutional unit (1) and the constitutional unit (2) is included in the resin in a molar ratio of not less than 0.1 but not more than 0.9 based on all the units included in the resin.
摘要翻译：要解决的问题：提供即使使用超高速复印机也能够抑制载体的电荷量和体积电阻率的变化的显影方法和图像形成方法。解决方案：显影方法包括使用包括调色剂T的显影剂D和由显影辊承载的载体显影承载在感光体P上的静电潜像，显影辊表面上的线速度不小于 300mm / sec，但不超过2000mm / sec。载体包括颗粒芯材料和形成在芯材表面上的层，并且包含通过使包含由3-甲基丙烯酰氧基丙基三（甲硅烷氧基）硅烷表示的结构单元（1））的树脂交联而得到的交联材料和作为单体，分别由通式表示的单体，以及由3-甲基丙烯酰氧基丙基三甲氧基硅烷等作为单体表示的结构单元（2），通过通式分别定义。基于包含在树脂中的所有单元，结构单元（1）和结构单元（2）中的每一个以不低于0.1但不大于0.9的摩尔比包含在树脂中。版权所有（C）2012，JPO＆INPIT

67. 发明专利

JP2012032775A Method for forming electrophotographic image, developer and process cartridge 审中-公开
标题翻译：形成电子照相图像，开发者和处理盒的方法
公开(公告)号：JP2012032775A
公开(公告)日：2012-02-16
申请号：JP2011081535
申请日：2011-04-01
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAGAYAMA MASASHI , AOKI MITSUO , SANTO HIDEYUKI , TANIGUCHI SHIGENORI
IPC分类号： G03G9/09 , G03G9/08 , G03G9/087 , G03G9/113 , G03G15/01 , G03G15/08
CPC分类号： G03G9/113 , G03G9/0821 , G03G9/08755 , G03G9/08782 , G03G9/1075 , G03G15/0194 , G03G15/6585
摘要： PROBLEM TO BE SOLVED: To provide a stable high-gloss image by using a transparent toner having excellent low-temperature fixability, high hot offset resistance characteristics and good storage stability.SOLUTION: The image forming method comprises forming at least one kind of chromatic color toner image and a transparent toner image on a recording medium, in which development is carried out by replenishing the transparent toner and a carrier to a developing device while discharging an excess developer. In the viscoelasticity of the transparent toner, a loss tangent expressed by loss tangent (tanδ)=loss modulus (G")/storage modulus (G') shows a peak value of at least 3 at 80 to 160°C.
摘要翻译：要解决的问题：通过使用具有优异的低温定影性，高耐热偏移特性和良好的储存稳定性的透明调色剂来提供稳定的高光泽图像。解决方案：图像形成方法包括在记录介质上形成至少一种彩色调色剂图像和透明调色剂图像，其中通过在排出时将透明调色剂和载体补充到显影装置进行显影多余的开发商在透明调色剂的粘弹性中，由损耗角正切（tanδ）=损耗模量（G“）/储能模量（G'）表示的损耗角正切在80至160℃下显示出至少3的峰值。版权所有（C）2012，JPO＆INPIT

68. 发明专利

JP2011215578A Carrier for electrostatic latent image developer 有权
标题翻译：静电图像发生器的载体
公开(公告)号：JP2011215578A
公开(公告)日：2011-10-27
申请号：JP2010198619
申请日：2010-09-06
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMADA SAORI , YAMAGUCHI KIMITOSHI , TANIGUCHI SHIGENORI , MASUDA MINORU , NAKAJIMA HISASHI , SAKATA KOICHI , IWATSUKI HITOSHI , TANO TOYOAKI , KISHIDA HIROYUKI , TAKII MARIKO
IPC分类号： G03G9/113 , G03G9/09
摘要： PROBLEM TO BE SOLVED: To provide a carrier excellent in reducing a toner spent phenomenon and in the wear resistance (resistance against scraping and peeling) of a coating film, and to provide a method for manufacturing the carrier and a developer containing the carrier.SOLUTION: The carrier for an electrostatic latent image developer comprises a core particle having magnetism and a coating layer coating the surface of the core particle where the coating layer contains a crosslinked product obtained by hydrolyzing a copolymer which contains at least a (meth)acrylic component expressed by a specified general structural formula and including a siloxysilane group in a side chain (for example, 3-methacryloxy propyltris(trimethylsiloxy)silane) and the other (meth)acrylic component expressed by a specified general structural formula and including a silane group in a side chain (for example, 3-methacryloxy proprytrimethoxysilane) to produce a silanol group, and condensing the product by using an inorganic tin-based catalyst.
摘要翻译：要解决的问题：提供一种降低涂膜消耗现象和耐刮擦性（耐刮擦和剥离）的载体，并提供一种制备载体和含载体的显影剂的方法。：静电潜像显影剂的载体包括具有磁性的芯颗粒和涂覆芯颗粒表面的涂层，其中涂层含有通过水解包含至少一种（甲基）丙烯酸组分的共聚物而获得的交联产物，所述共聚物表达通过规定的一般结构式在侧链中包含硅氧烷基（例如，3-甲基丙烯酰氧基丙基三（三甲基甲硅烷氧基）硅烷））和由特定的一般结构式表示的另外的（甲基）丙烯酸类组分，并且在侧链（例如3-甲基丙烯酰氧基丙基三甲氧基硅烷）制造硅烷醇基，并通过使用无机锡基催化剂。

69. 发明专利

JP2011215576A Carrier for electrostatic latent image developer, and electrostatic latent image developer 有权
标题翻译：静电图像发生器的载体和静电图像开发
公开(公告)号：JP2011215576A
公开(公告)日：2011-10-27
申请号：JP2010193815
申请日：2010-08-31
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANO TOYOAKI , TANIGUCHI SHIGENORI , MASUDA MINORU , YAMAGUCHI KIMITOSHI , IWATSUKI HITOSHI , SAKATA KOICHI , NAKAJIMA HISASHI , KISHIDA HIROYUKI , YAMADA SAORI , TAKII MARIKO , HIGASHIMATSU HIROSHI , SAWADA TOYOSHI
IPC分类号： G03G9/113 , G03G9/09
摘要： PROBLEM TO BE SOLVED: To provide a carrier excellent in a toner spent property and the wear resistance (resistance to scraping and peeling) of a coating film.SOLUTION: The carrier for an electrostatic latent image developer contains conductive fine particles in a coating layer, wherein a resin component of the coating layer contains a resin obtained by heat treating a copolymer containing a monomer expressed by formula of (component A) and a crosslinking component, and the carrier has a dynamic resistance 1×10Ω cm or more and 1×10Ω cm or less.
摘要翻译：要解决的问题：提供一种涂料性能优良的载体和耐磨性（耐刮擦和剥离）。溶液：用于静电潜像显影剂的载体在涂层中含有导电细颗粒，其中，涂层的树脂成分含有通过热处理含有由（A成分）式表示的单体和交联成分的共聚物而得到的树脂，载体的动态电阻为1×10Ωcm以上1×10Ω cm以下。

70. 发明专利

JP2011145648A Carrier for electrostatic latent image developer, two-component developer, container containing developer, image forming method, and process cartridge 有权
标题翻译：用于静电图像开发者，双组分开发商，含有开发商的容器，图像形成方法和过程盒
公开(公告)号：JP2011145648A
公开(公告)日：2011-07-28
申请号：JP2010205874
申请日：2010-09-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： IWATSUKI HITOSHI , YAMAGUCHI KIMITOSHI , MASUDA MINORU , NAKAJIMA HISASHI , SAKATA KOICHI , TAKAHASHI YUTAKA , YAMADA SAORI , TANO TOYOAKI , KISHIDA HIROYUKI , TANIGUCHI SHIGENORI , TAKII MARIKO
IPC分类号： G03G9/113 , G03G9/09
摘要： PROBLEM TO BE SOLVED: To provide a carrier which has a wide resistance control range, does not cause carrier adhesion of toner components, reduces edge effect, and allows proper reproducibility of a thin line, such as letter portions and formation of a high-definition image without color contamination in a two-component developer. SOLUTION: The carrier has a coating layer on a core material particle surface. The coating layer includes a resin obtained by heat treatment of a copolymer comprising a tris (trialkylsiloxy) silane and a polymerizable silane, and tin oxide particles having carbon on the surfaces. COPYRIGHT: (C)2011,JPO&INPIT

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