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1. 发明专利

JP2014056108A Carrier for electrostatic latent image developer, developer, image forming method, supplemental developer, and process cartridge 有权
标题翻译：静电图像发生器，开发商，图像形成方法，补充开发者和处理盒的载体
公开(公告)号：JP2014056108A
公开(公告)日：2014-03-27
申请号：JP2012200797
申请日：2012-09-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HIGASHIMATSU HIROSHI , TANIGUCHI SHIGENORI , SAKATA KOICHI , IWATSUKI HITOSHI , KISHIDA HIROYUKI , TANO TOYOAKI
IPC分类号： G03G9/113 , G03G9/08 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a carrier for electrostatic latent image developer that is not affected by a toner consumption history of an immediately previous image, develops with the stable toner amount, has excellent color reproducibility, and can provide bright images; a developer using the carrier; an image forming method; and a process cartridge.SOLUTION: A carrier for an electrostatic latent image developer is formed of a magnetic core particle, and a coating layer that coats the surface of the core particle. The core particles have the SF-2 of 120 to 160, and the Ra of 0.5 to 1.0 μm; the coating layers contain 50 to 500 parts by weight of fillers with respect to 100 parts by weight of resin; and the carrier has the SF-2 in the range of 115 to 150, and has the fluidity energy amount of 3000 to 4000 mJ in the total energy amount at an entry distance of 70 mm measured by a powder rheometer in the conditions of the tip speed of blades of 100 mm/sec, and the approach angle of blades of -5°.
摘要翻译：要解决的问题：为了提供不受紧接着的图像的调色剂消耗历史影响的静电潜像显影剂的载体，以稳定的调色剂量显影，具有优异的颜色再现性，并且可以提供明亮的图像; 使用承运人的开发商图像形成方法; 和处理盒。解决方案：用于静电潜像显影剂的载体由磁芯颗粒和涂覆芯颗粒的表面的涂层形成。核心颗粒的SF-2为120〜160，Ra为0.5〜1.0μm; 相对于100重量份的树脂，涂层含有50-500重量份的填料; 并且载体的SF-2在115〜150的范围内，并且在粉末流变仪在尖端条件下测量的入口距离70mm处的总能量的流动能量为3000〜4000mJ 刀片速度为100 mm / sec，刀片接近角为-5°。

2. 发明专利

JP2013064820A Carrier for electrostatic charge image development, developer for electrostatic charge image development, process cartridge, and image forming apparatus 审中-公开
标题翻译：静电充电图像发展载体，静电电荷图像开发开发者，工艺盒和图像形成装置
公开(公告)号：JP2013064820A
公开(公告)日：2013-04-11
申请号：JP2011202753
申请日：2011-09-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKII MARIKO , TANIGUCHI SHIGENORI , YAMAGUCHI KIMITOSHI , SAWADA TOYOSHI , SAKATA KOICHI , KISHIDA HIROYUKI
IPC分类号： G03G9/113 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a carrier and a two-component developer for developing a stable amount of toner and providing images that are uniform and have excellent color reproducibility for a long period without being affected by a toner consumption history of an immediately previous image, a process cartridge using the carrier for electrostatic latent image development; and an image forming apparatus.SOLUTION: A carrier for electrostatic latent image developer comprises magnetic core material particles, and a resin layer that covers the surface of the particle. Exposure parts having an exposure rate of the core material E(%) on a surface of a carrier particle of 0
摘要翻译：要解决的问题：提供一种用于显影稳定量的调色剂的载体和双组分显影剂，并提供长时间均匀且具有优异的颜色再现性的图像，而不受色粉消耗历史的影响立即上一图像，使用用于静电潜像显影的载体的处理盒; 和图像形成装置。解决方案：用于静电潜像显影剂的载体包括磁芯材料颗粒和覆盖颗粒表面的树脂层。载体颗粒表面的核心材料E（％）的曝光率为0 2 占总曝光部分的95％以上，并且有100个以上的芯材曝光部件。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2013033223A Developing device, image forming method, image forming apparatus, and process cartridge 有权
标题翻译：开发设备，图像形成方法，图像形成装置和处理盒
公开(公告)号：JP2013033223A
公开(公告)日：2013-02-14
申请号：JP2012119919
申请日：2012-05-25
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KISHIDA HIROYUKI , TANIGUCHI SHIGENORI , SAWADA TOYOSHI , TANO TOYOAKI , SAKATA KOICHI
IPC分类号： G03G15/09 , G03G9/10 , G03G9/113 , G03G15/08
CPC分类号： G03G15/0921 , G03G9/1075 , G03G9/1136 , G03G9/1139 , G03G2215/0609
摘要： PROBLEM TO BE SOLVED: To provide a developing device or the like capable of keeping the density of an image in development constant over a long period of time and prolonging the service life of a two-component developer.SOLUTION: A developing device 3 is configured to include a developer carrier 302 including magnetic field generation means and carrying a two-component developer 320 on the surface of the developer carrier 302, to convey the two-component developer 320, and a developer storage part. The developing device 3 is configured so that magnetic poles included in the magnetic field generation means are only three magnetic poles of a development magnetic pole, a pre-development magnetic pole, and a post-development magnetic pole, the pre-development magnetic pole scoops the developer 320, the pre-development magnetic pole and the development magnetic pole hold the developer 320 on the developer carrier 302 from a position where the developer 320 is supplied to a development area, and the development magnetic pole and the post-development magnetic pole hold the developer on the developer carrier 302 from the development area to a position where the developer 320 on the surface of the developer carrier 302 is released. The ten-point surface roughness of the developer carrier 302 is 10 to 30 μm and the ten-point surface roughness of a magnetic carrier is 0.5 to 3.0 μm.
摘要翻译：要解决的问题：提供能够使图像的浓度在长时间内保持恒定并且延长双组分显影剂的使用寿命的显影装置等。解决方案：显影装置3被配置为包括包括磁场产生装置的显影剂载体302并且在显影剂载体302的表面上承载双组分显影剂320以输送双组分显影剂320，以及开发者存储部分。显影装置3被构造成使得包括在磁场产生装置中的磁极仅显影磁极，显影前磁极和显影后磁极的三个磁极，预开发磁极勺显影剂320，预开发磁极和显影磁极将显影剂载体302上的显影剂320从显影剂320供应到显影区域的位置保持，显影磁极和显影后磁极将显影剂载体302上的显影剂从显影区域保持到显影剂载体302的表面上的显影剂320被释放的位置。显影剂载体302的十点表面粗糙度为10〜30μm，磁性载体的十点表面粗糙度为0.5〜3.0μm。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2012215810A Toner for electrophotographic development, image forming method and process cartridge 有权
标题翻译：电子显影技术的发展，图像形成方法和过程库
公开(公告)号：JP2012215810A
公开(公告)日：2012-11-08
申请号：JP2011203252
申请日：2011-09-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMADA SAORI , AOKI MITSUO , NAKAJIMA HISASHI , NAGAYAMA MASASHI , TANIGUCHI SHIGENORI
IPC分类号： G03G9/09 , G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a toner for electrophotographic development achieving all of extremely excellent low-temperature fixability, high hot offset resistance characteristics and favorable storage stability and capable of forming an image with high coloring power and concealing power and high glossiness even in a small deposition amount, and to provide an electrophotographic image forming method and a process cartridge using the toner for electrophotographic development.SOLUTION: The toner for electrophotographic development comprises: a binder resin; a fluorescent colorant; and a release agent. The toner shows a peak tangent loss at 80 to 160 [°C], the tangent loss represented by (loss modulus (G"))/(storage modulus (G'))=tangent loss (tanδ) and the maximum peak value of the tangent loss of 3 or more.
摘要翻译：要解决的问题：提供一种电子照相用调色剂，其具有极好的低温定影性，高耐热偏移特性和良好的储存稳定性，并且能够形成具有高着色力和隐蔽功率以及高光泽度的图像即使以小的沉积量，并且提供电子照相成像方法和使用该电子照相显影用调色剂的处理盒。解决方案：用于电子照相显影的调色剂包括：粘合剂树脂; 荧光着色剂; 和脱模剂。调色剂在80〜160℃显示出峰值切线损耗，以（损耗模量（G“）表示的切线损耗/（储能模量（G'））=切线损耗（tanδ）和最大峰值 3年以上的切线损失。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2012189880A Carrier, developer, process cartridge, and image forming method 审中-公开
标题翻译：载体，开发者，过程盒和图像形成方法
公开(公告)号：JP2012189880A
公开(公告)日：2012-10-04
申请号：JP2011054412
申请日：2011-03-11
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAWADA TOYOSHI , TANIGUCHI SHIGENORI , HIGASHIMATSU HIROSHI , IWATSUKI HITOSHI , TANO TOYOAKI , TAKII MARIKO
IPC分类号： G03G9/113
摘要： PROBLEM TO BE SOLVED: To provide a carrier having stable charging ability, excellent in abrasion resistance of a film, showing less changes in the carrier resistance and in a pumping amount of a developer, restricting toner spent, showing less image density variation, and preventing contamination due to background contamination, toner scattering, and carrier adhesion.SOLUTION: A carrier is configured such that the surface of a core material is coated with a silane coupling agent and thereafter coated with a coating resin layer containing a silicone resin containing conductive fine particles. The arithmetic average roughness Ra of the core material is 0.6 to 0.9 μm and this arithmetic average roughness Ra is equal to or larger than the average thickness of the coating resin layer.
摘要翻译：要解决的问题：为了提供具有稳定的充电能力的载体，薄膜的耐磨性优异，载体电阻的变化和显影剂的抽吸量变小，限制使用的墨粉，显示较小的图像浓度变化，并防止由于背景污染，调色剂飞散和载体粘附引起的污染。解决方案：载体被构造成使得芯材的表面涂覆有硅烷偶联剂，然后涂覆有包含含有导电细颗粒的硅树脂的涂层树脂层。芯材的算术平均粗糙度Ra为0.6〜0.9μm，算术平均粗糙度Ra等于或大于涂覆树脂层的平均厚度。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2012078790A 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：JP2012078790A
公开(公告)日：2012-04-19
申请号：JP2011168170
申请日：2011-08-01
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 , KISHIDA HIROYUKI , TANO TOYOAKI , TAKII MARIKO
IPC分类号： G03G9/113 , G03G9/09 , G03G9/107 , G03G15/09
CPC分类号： G03G15/08 , G03G9/1131 , G03G9/1133 , G03G9/1139 , G03G2215/0602 , G03G2215/0607
摘要： PROBLEM TO BE SOLVED: To provide a carrier excellent in toner spent property and abrasion resistance of a coating film (against scraping or peeling).SOLUTION: The carrier for an electrostatic latent image developer comprises core particles having magnetism and a resin layer coating the surface of the core particle. The resin layer contains a resin obtained by heat treating a copolymer, among copolymers expressed by general formula (1), the copolymer including at least the X component and the Y component. The core particle is a ferrite particle, in which the content of Sr in the ferrite particle measured by fluorescent X-rays is 0.005 to 3 mass%. In the general formula, Rrepresents a hydrogen atom or a methyl group, Rrepresents an alkyl group having 1 to 4 carbon atoms, Rrepresents an alkyl group of 1 to 8 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and m represents an integer of 1 to 8. The plurality of Rand Rmay be respectively the same or different.
摘要翻译：要解决的问题：提供一种涂膜的调色剂废弃性和耐磨性优异（不刮擦或剥离）的载体。解决方案：用于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树脂层。树脂层含有通过将由通式（1）表示的共聚物，至少包含X成分和Y成分的共聚物共聚物进行热处理而得到的树脂。核心粒子是通过荧光X射线测定的铁氧体粒子中的Sr含量为0.005〜3质量％的铁素体粒子。在通式中，R 1 表示氢原子或甲基，R 2表示具有1-4个碳原子的烷基碳原子，表示碳原子数为1〜8的烷基或碳原子数1〜4的烷氧基， m表示1〜8的整数。多个R 1 和R 2 可以分别相同或不同。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2012058637A 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：JP2012058637A
公开(公告)日：2012-03-22
申请号：JP2010204001
申请日：2010-09-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKII MARIKO , TANIGUCHI SHIGENORI , SAWADA TOYOSHI , YAMAGUCHI KIMITOSHI , IWATSUKI HITOSHI , HIGASHIMATSU HIROSHI , TANO TOYOAKI , SAKATA KOICHI , YAMADA SAORI , KISHIDA HIROYUKI
IPC分类号： G03G9/113 , G03G9/09
摘要： PROBLEM TO BE SOLVED: To provide a carrier that simultaneously satisfies the following properties of: stable charge imparting ability over a long period; excellent abrasion resistance (chipping and peeling); reduced change in carrier resistance and pumping rate of developer; reduced change in the charge fluctuation due to the spent of toner composition; and suppressed environmental variation of charge that prevents the occurrence of image density variation, background stains, and intra-device contamination due to toner scattering in a variety of use environments, as well as an electrostatic latent image developer, an electrostatic latent image developing method, a process cartridge, and an image forming apparatus.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 particles. The resin layer includes conductive particulates, and resin obtained by subjecting a copolymer including an acrylic monomer having a siloxane bond and an acrylic monomer having a cross-linked precursor to heating treatment; and the coating layer contains a cross-linked product of an amino resin.
摘要翻译：要解决的问题：提供同时满足以下特性的载体：长期稳定的电荷赋予能力; 优异的耐磨性（切屑和剥离）; 降低显影剂的载流子阻力和泵送速率的变化; 降低由于调色剂组合物的消耗导致的电荷变动的变化; 抑制了各种使用环境下的调色剂散射引起的图像浓度变化，背景污染和设备内污染的电荷的环境变化，以及静电潜像显影剂，静电潜像显影方法，处理盒和图像形成装置。解决方案：用于静电潜像显影剂的载体由磁化芯材料颗粒和涂覆颗粒表面的树脂层形成。树脂层包括导电性微粒，以及将包含具有硅氧烷键的丙烯酸类单体和具有交联前体的丙烯酸类单体的共聚物进行加热处理得到的树脂; 并且所述涂层含有氨基树脂的交联产物。版权所有（C）2012，JPO＆INPIT

8. 发明专利

JP2012058483A Developer for electrostatic latent image development, production method of developer for electrostatic latent image development, container with developer, image forming method and process cartridge 有权
标题翻译：用于静电影像发展的开发者，用于静电图像发展的开发商的生产方法，具有开发者的容器，图像形成方法和过程盒
公开(公告)号：JP2012058483A
公开(公告)日：2012-03-22
申请号：JP2010201443
申请日：2010-09-08
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAKATA KOICHI , TANIGUCHI SHIGENORI , MASUDA MINORU , YAMAGUCHI KIMITOSHI , NAKAJIMA HISASHI , IWATSUKI HITOSHI , YAMADA SAORI , KISHIDA HIROYUKI , TANO TOYOAKI , TAKII MARIKO
IPC分类号： G03G9/113
摘要： PROBLEM TO BE SOLVED: To provide a developer for electrostatic latent image development, capable of improving transfer efficiency in a high-speed full-color image forming method, eliminating image defects in each transfer process and outputting an image with high reproducibility for a long period of time.SOLUTION: The developer contains a carrier and toner. The carrier comprises magnetic core particles and a resin layer coating the surface of each core particle, and the resin layer contains a resin prepared by heat treating an acrylate resin with an acrylate resin having a siloxane bond and a silanol precursor at 100°C to 230°C. The toner is obtained through a toner surface treatment by heating a dispersion liquid at a heating temperature (T1), the dispersion liquid prepared by dispersing toner base particles in an aqueous medium containing a surfactant. The concentration of the surfactant is 0.1 to 2.0 times as a critical micelle concentration of the surfactant, and the heating temperature (T1) is controlled to be lower by at most 10°C and higher by less than 10°C than the glass transition temperature (Tg) of the toner.
摘要翻译：要解决的问题：为了提供能够提高高速全色图像形成方法中的转印效率的静电潜像显影用显影剂，消除了各转印处理中的图像缺陷，并且以高再现性输出图像很长一段时间。
解决方案：显影剂含有载体和碳粉。载体包括磁芯颗粒和涂覆每个芯颗粒的表面的树脂层，并且树脂层含有通过丙烯酸酯树脂与具有硅氧烷键的丙烯酸酯树脂和硅烷醇前体在100℃至230℃下热处理而制备的树脂 C。通过在加热温度（T1）下加热分散液，通过将调色剂基础颗粒分散在含有表面活性剂的水性介质中制备的分散液，通过调色剂表面处理获得调色剂。表面活性剂的浓度作为表面活性剂的临界胶束浓度的0.1〜2.0倍，加热温度（T1）控制在比玻璃化转变温度低10℃以下10℃以下（Tg）。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2010152203A Positively charged red toner for electrophotography 审中-公开
标题翻译：用于电子显微镜的正电荷红色调色剂
公开(公告)号：JP2010152203A
公开(公告)日：2010-07-08
申请号：JP2008331958
申请日：2008-12-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANO TOYOAKI , TANIGUCHI SHIGENORI
IPC分类号： G03G9/08 , G03G9/087 , G03G9/09 , G03G9/097
摘要： PROBLEM TO BE SOLVED: To provide a positively charged red toner for electrophotography that has early rise of charging, stable electrostatic chargeability and good flowability, and that is free from lowering of image density in running and the occurrence of fog or supply fog.
SOLUTION: The positively charged red toner for electrophotography contains at least a polyester in resin and a benzyl tributyl ammonium in a charge control agent. Also, an external additive is characterized by externally adding a fumed silica which is obtained by having the surface with an average particle size of 7-15 nm subjected to hydrophobic treatment by hexamethyldisilazane. An initial charging amount in the developer which is stirred and mixed with carrier is ≥7 μC/g, and the charging amount is 16 to 30 μC/g and a fall rate is ≥70% when stirred for a long time.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供具有充电早期升高，静电充电性和流动性良好的电荷照相的带正电荷的红色调色剂，并且不会降低运行中的图像浓度和雾或供应雾的发生。解决方案：用于电子照相的带正电荷的红色调色剂在电荷控制剂中至少含有树脂中的聚酯和苄基三丁基铵。此外，外部添加剂的特征在于外部添加通过使六甲基二硅氮烷进行疏水处理的平均粒径为7-15nm的表面而获得的热解法二氧化硅。与载体搅拌混合的显影剂中的初始充电量为≥7μC/ g，当长时间搅拌时，充电量为16〜30μC/ g，下降率为≥70％。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2015004787A 静電潜像現像用キャリア、それを用いた二成分現像剤および補給用現像剤、二成分現像剤を備えるプロセスカートリッジ並びに画像形成装置审中-公开
标题翻译：用于静电影像发展的承运人，使用该装置的双组分开发商和再利用开发商以及具有两个组件开发商的过程盒和图像形成装置
公开(公告)号：JP2015004787A
公开(公告)日：2015-01-08
申请号：JP2013129476
申请日：2013-06-20
申请人：株式会社リコー , Ricoh Co Ltd
发明人： SAKATA KOICHI , TANIGUCHI SHIGENORI , HIGASHIMATSU HIROSHI , IWATSUKI HITOSHI , TANO TOYOAKI , KISHIDA HIROYUKI , MASUKO KENICHI
IPC分类号： G03G9/113 , G03G9/09 , G03G21/18
摘要：【課題】低温定着化の要請に対応可能な特性を有し、多くの添加剤を含有するトナーに対しても、トナースペント性が抑制されると共に、キャリア芯材(芯材粒子)上に形成される被覆層の耐摩耗性(削れ・剥がれ)が優れたキャリアを提供する。【解決手段】芯材粒子上に少なくとも結着樹脂とアミノシランカップリング剤と体積平均粒子径dが500nm以上900nm以下である微粒子を含む被覆層を有する静電荷像現像剤用キャリアとし、該キャリアのX線光電子分光分析法(XPS)により得られるN含有量を基に下記式(1)により算出されるN含有比が、前記微粒子の含有比率をa重量%とした時に、100/a以上となるように制御する。N含有量はキャリアを4mmΦの穴に充填しArイオンでスパッタしてXPSで測定する。N含有比=[キャリア最表面のN含有量]/[深さ方向d/100でのN含有量]・・・(1)。【選択図】図1
摘要翻译：要解决的问题：提供构造成能够应对低温定影的载体，以抑制含有许多添加剂的调色剂消耗现象，并提高形成在载体芯材上的涂层的耐磨性（抗磨损或剥离）（芯材颗粒）。溶液：静电荷图像显影剂载体包括在芯材颗粒上形成的涂层，至少含有粘合剂树脂，氨基硅烷偶联剂和体积平均粒径d为500〜 900nm。当通过X射线光电子能谱分析（XPS）获得的载体的N-含量，通过下式（1）计算的N含量比被控制为等于或大于100 / a，当含量比的微粒是（a）重量％。通过XPS通过用载体填充4mmΦ的孔并用Ar离子溅射的过程来测量N含量。（1）：N含量比=（载体最外表面的N含量）/（深度方向的N含量d / 100）。

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