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    • 2. 发明专利
    • トナー収容容器、及び画像形成装置
    • 托盘存储容器和图像形成装置
    • JP2014228647A
    • 2014-12-08
    • JP2013107322
    • 2013-05-21
    • 株式会社リコーRicoh Co Ltd
    • NAGAYAMA MASASHINAKAJIMA HISASHISEKIGUCHI YOSHITAKAYAMADA SAORITAKII MARIKOHOSOKAWA HIROSHIKATO SHUNJITAMAKI SHINJIIKEGUCHI HIROSHIKIKUCHI KENJISUZUKI MICHIHARU
    • G03G15/08G03G9/08
    • 【課題】トナー残量が少なくなっても現像装置へのトナーの補給が可能なトナー収容容器を提供する事。【解決手段】トナーと、トナー搬送装置に装着され、トナー搬送装置に供給するトナーが収容された容器本体と、容器本体の内部に配置され、トナーを容器本体における長手方向の底面が設けられた一端側から容器開口部が設けられた他端側に搬送する搬送部と、容器開口部に配置され、トナー搬送装置に固定された搬送管を受け入れる管受入口と、搬送部によって搬送されたトナーを搬送管のトナー受入口に向けて移動させる汲み上げ部とを備え、トナーが結着樹脂と外添剤とを含み、外添剤がシリコーンオイルを含む無機粒子を含有し、容器本体が、容器開口部の容器本体内部側から、一端側に向かって突出している突出部を有し、汲み上げ部が、容器本体内壁面から突出部に向かって伸びる汲み上げ壁面を有し、突出部が汲み上げ壁面と搬送管のトナー受入口との間に存在する。【選択図】図1
    • 要解决的问题:提供一种调色剂储存容器,即使当调色剂的剩余量减少时也允许向显影装置供应调色剂。解决方案:调色剂存储容器包括调色剂,容器主体,其附着到调色剂输送 装置,并且容纳要供应给调色剂输送装置的调色剂;输送单元,其布置在容器主体内部,以将容器主体的纵向方向上的底面的一端提供给另一端 其中设置有容器开口,管接收口设置在容器开口处并且容纳固定到调色剂输送装置的输送管,以及泵送单元,其将由输送单元输送的调色剂朝向调色剂接收 输送管口。 调色剂包括粘合剂树脂和外部添加剂,外部添加剂含有无机颗粒,包括硅油; 容器主体包括从容器主体的内部朝向容器开口的一端突出的突起; 泵送单元包括从容器主体的内壁表面朝向突起延伸的泵送壁表面; 并且在泵送壁表面和输送管的调色剂接收口之间存在突起。
    • 3. 发明专利
    • Developer for electrostatic latent image development, and image forming apparatus
    • 静电图像发展的开发者和图像形成装置
    • JP2014170103A
    • 2014-09-18
    • JP2013041664
    • 2013-03-04
    • Ricoh Co Ltd株式会社リコー
    • HIGASHIMATSU HIROSHITANIGUCHI SHIGENORISAKATA KOICHIIWATSUKI HITOSHIKISHIDA HIROYUKITANO TOYOAKIMASUKO KENICHIYAMADA SAORI
    • G03G9/087G03G9/08G03G9/097G03G9/113
    • PROBLEM TO BE SOLVED: To provide a developer that satisfies low-temperature fixability, hot-offset resistance property, and heat-resistant storage stability in a good balance, and forms high quality images during a long period which are not affected by a toner consumption history of an immediately previous image, can be developed with a stable amount of toner, and prevents the occurrence of a ghost phenomenon.SOLUTION: A developer for electrostatic latent image development consists of a toner and a carrier. The toner includes at least a binder resin, and a colorant; the binder resin contains a crystalline polyester resin (A), an amorphous resin (B), and a composite resin (C) including a condensation polymerization resin unit and an addition polymerization resin unit; and the carrier consists of core material particles having magnetism and a coating layer that coats the surface of each of the core material particles, and has SF-2 within a range of 115 to 150, and contains 50 to 500 parts by weight of filler relative to 100 parts by weight of a resin in the coating layer.
    • 要解决的问题:为了提供一种能够很好地平衡地满足低温定影性,耐热胶印性和耐热储存稳定性的显影剂,并且在不受墨粉消耗影响的长时间内形成高质量图像 可以开发具有稳定量的调色剂的立即之前的图像的历史,并且防止发生重影现象。解决方案:用于静电潜像显影的显影剂由调色剂和载体组成。 调色剂至少包括粘合剂树脂和着色剂; 粘合剂树脂含有结晶性聚酯树脂(A),无定形树脂(B)和包含缩聚树脂单元和加成聚合树脂单元的复合树脂(C) 载体由具有磁性的核心材料颗粒和涂覆每个芯材颗粒的表面的涂层组成,SF-2在115至150的范围内,并且包含50-500重量份的填料相对 至100重量份的涂层中的树脂。
    • 4. 发明专利
    • Toner for electrophotography, image forming method, and process cartridge
    • 电影摄影,图像形成方法和过程盒的调色剂
    • JP2012208142A
    • 2012-10-25
    • JP2011071412
    • 2011-03-29
    • Ricoh Co Ltd株式会社リコー
    • NAKAJIMA HISASHIYAMADA SAORIAOKI MITSUONAGAYAMA MASASHITANIGUCHI SHIGENORI
    • G03G9/09G03G9/08G03G9/087
    • PROBLEM TO BE SOLVED: To provide toner for electrophotography that exhibits extremely excellent low-temperature fixability, high hot offset resistance performance, and excellent storage stability, and reproduces images having high luminance, high reflectance, and a high metallic feel, as well as an image forming method, and a process cartridge.SOLUTION: Toner for electrophotography contains at least a binder resin, colorant, and a mold release agent. The colorant is a metallic pigment; and the viscoelasticity of the toner has the peak of tangent loss (tanδ) represented by loss modulus (G")/storage modulus (G')=tangent loss (tanδ) of 80-160°C, and the peak value of the tangent loss is 3 or more.
    • 要解决的问题:为了提供显示出极好的低温定影性,高耐热偏移性能和优异的储存稳定性的电子照相用调色剂,并且再现具有高亮度,高反射率和高金属感的图像,如 以及成像方法和处理盒。 解决方案:电子照相用调色剂至少含有粘合剂树脂,着色剂和脱模剂。 着色剂是金属颜料; 并且调色剂的粘弹性具有由损耗模量(G“)/储能模量(G')= 80-160℃的切线损耗(tanδ)表示的切线损耗(tanδ)的峰值,切线的峰值 损失为3以上。版权所有(C)2013,JPO&INPIT
    • 5. 发明专利
    • Transparent toner for electrophotographic development, image forming method and process cartridge
    • 用于电子显影开发的透明色调剂,图像形成方法和工艺盒
    • JP2012194453A
    • 2012-10-11
    • JP2011059507
    • 2011-03-17
    • Ricoh Co Ltd株式会社リコー
    • NAGAYAMA MASASHIAOKI MITSUONAKAJIMA HISASHIYAMADA SAORI
    • G03G9/08G03G9/087G03G15/01G03G15/08
    • PROBLEM TO BE SOLVED: To provide a transparent toner for electrophotographic development, an image forming method and a process cartridge, achieving excellent low-temperature fixability as well as hot offset resistance and storage stability, and allowing formation of a fine, high-gloss image.SOLUTION: The transparent toner contains, as a toner composition, a binder resin, a crystalline polyester resin and a lubricant. The toner shows a peak value of dielectric loss tangent present in the range from 80 to 160°C obtained by viscoelasticity evaluation of the toner and calculated by formula (1):(loss modulus (G"))/(storage modulus (G'))=(dielectric loss tangent (tanδ)), with a peak value of the dielectric loss tangent of 3 or more, and has a storage modulus (G') shown in formula (1) of 1 Pa or more and 1×10Pa or less at a temperature of 120 to 160°C. An image is formed by an electrophotographic process on a recording medium.
    • 要解决的问题:为了提供用于电子照相显影的透明调色剂,图像形成方法和处理盒,实现优异的低温定影性以及耐热粘合性和储存稳定性,并且可以形成精细,高 -gloss形象。 透明调色剂含有粘合剂树脂,结晶聚酯树脂和润滑剂作为调色剂组合物。 调色剂表现出通过调色剂的粘弹性评价得到的介电损耗角正切峰值在80至160℃,通过式(1)计算:损耗模量(G“)/(储能模量(G' ))=(介电损耗角正切(tanδ)),介电损耗角正切值为3以上,并且具有式(1)所示的储能模量(G')为1Pa以上且1×10 在温度为120〜160℃的条件下, 4 Pa以下,通过电子照相法在记录介质上形成图像。(C)2013,JPO&INPIT
    • 8. 发明专利
    • Developing method and image forming method
    • 发展方法和图像形成方法
    • JP2012053448A
    • 2012-03-15
    • JP2011145251
    • 2011-06-30
    • Ricoh Co Ltd株式会社リコー
    • NAKAJIMA HISASHIYAMAGUCHI KIMITOSHITANIGUCHI SHIGENORIIWATSUKI HITOSHITANO TOYOAKITAKII MARIKOMASUDA MINORUSAKATA KOICHIYAMADA SAORIKISHIDA HIROYUKI
    • G03G9/113
    • G03G9/1075G03G9/107G03G9/1136G03G9/1137
    • 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.
    • 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
    • 9. 发明专利
    • Carrier for two-component developer
    • 两个组件开发商的承运人
    • JP2012053421A
    • 2012-03-15
    • JP2010199278
    • 2010-09-06
    • Ricoh Co Ltd株式会社リコー
    • NAKAJIMA HISASHIYAMAGUCHI KIMITOSHIMASUDA MINORUTAKAHASHI YUTAKASAKATA KOICHIIWATSUKI HITOSHIYAMADA SAORITANO TOYOAKI
    • G03G9/113G03G9/09
    • PROBLEM TO BE SOLVED: To provide a carrier excellent in toner spent resistance, wear resistance (resistance against scraping or peeling) of a coating film, and to provide developer containing the carrier, a container with developer containing the developer, and an image forming method and a process cartridge using the developer.SOLUTION: A carrier for an electrostatic latent image developer comprises a core particle having magnetism and a resin layer coating the particle surface. The resin layer contains a resin prepared by heat treatment of a copolymer containing at least a trialkoxysilane acrylate or methacrylate and a dialkoxyalkylsilane acrylate or methacrylate. The resin layer contains a crosslinked product obtained by hydrolyzing the above copolymer to produce a silanol group and then condense it by using an organotitanium compound.
    • 要解决的问题:为了提供一种涂料耐久性优异的载体,涂膜的耐磨性(耐刮擦或剥离),并且提供含有载体的显影剂,含有显影剂的显影剂的容器和 图像形成方法和使用显影剂的处理盒。 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颗粒表面的树脂层。 树脂层含有通过热处理含有至少三烷氧基硅烷丙烯酸酯或甲基丙烯酸酯和二烷氧基烷基硅烷丙烯酸酯或甲基丙烯酸酯的共聚物而制备的树脂。 树脂层含有通过水解上述共聚物得到的交联物,生成硅烷醇基,然后使用有机钛化合物使其冷凝。 版权所有(C)2012,JPO&INPIT
    • 10. 发明专利
    • Carrier for electrostatic latent image developer
    • 静电图像发生器的载体
    • JP2011215578A
    • 2011-10-27
    • JP2010198619
    • 2010-09-06
    • Ricoh Co Ltd株式会社リコー
    • YAMADA SAORIYAMAGUCHI KIMITOSHITANIGUCHI SHIGENORIMASUDA MINORUNAKAJIMA HISASHISAKATA KOICHIIWATSUKI HITOSHITANO TOYOAKIKISHIDA HIROYUKITAKII MARIKO
    • G03G9/113G03G9/09
    • 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.
    • 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。