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1. 发明专利

JP2014149370A Toner, developer, image forming apparatus, process cartridge, and fixation image 审中-公开
标题翻译：调色剂，开发商，图像形成装置，过程盒和固定图像
公开(公告)号：JP2014149370A
公开(公告)日：2014-08-21
申请号：JP2013017296
申请日：2013-01-31
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ISHIKAWA MASAHIKO , SUGIURA HIDEKI
IPC分类号： G03G9/08 , G03G9/087 , G03G9/10
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which ensures low-temperature fixability, hot-offset resistance having a trade-off relationship therewith, and heat-resistant preservability, while improving fold fixing strength.SOLUTION: In toner including at least binder resin, a colorant, and a mold-releasing agent satisfies 8≤F/L≤12, a gradient F/L of a curve to a separation point P, which indicates a relationship between a sensor output F and a scratch distance L in a micro-scratch test of the toner with respect to a fixation image satisfies 8≤F/L≤12.
摘要翻译：要解决的问题：提供确保低温定影性，具有折衷关系的耐热胶印性以及耐热保存性的图像形成装置，同时提高折叠固定强度。解决方案：在至少包含粘合剂的调色剂中树脂，着色剂和脱模剂满足8≤F/L≤12，与分离点P的曲线的梯度F / L，其表示传感器输出F和刮擦距离L之间的关系调色剂相对于定影图像的微划痕试验满足8≤F/L≤12。

2. 发明专利

JP2012189868A Toner, developer and image forming method 有权
标题翻译：调色剂，开发者和图像形成方法
公开(公告)号：JP2012189868A
公开(公告)日：2012-10-04
申请号：JP2011054213
申请日：2011-03-11
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUGIURA HIDEKI
IPC分类号： G03G9/08 , G03G9/087
CPC分类号： G03G15/2064 , G03G9/09307 , G03G9/0935 , G03G9/09371 , G03G9/09378 , G03G9/09385 , G03G9/09392
摘要： PROBLEM TO BE SOLVED: To provide toner having low-temperature fixability, heat-resistant storage property and developing stability.SOLUTION: There is provided a toner that has a core shell structure comprising a core containing a crystalline polyester, an amorphous polyester, a coloring agent and a releasing agent; and a shell containing resin fine particles, and includes an external additive. The toner has a deformation amount H1 of 0.2 μm or more and 1.5 μm or less when compressed at a pressure of 0.5 mN under 25°C environment. A difference D between the deformation amount H1 and a deformation amount H2 when compressed at a pressure of 0.5 mN under 50°C environment is 0.0 μm or more and 1.0 μm or less. When the toner is molten at 90°C, the toner has a surface roughness Ra of 0.02 μm or more and 0.40 μm or less.
摘要翻译：要解决的问题：提供具有低温定影性，耐热储存性和显影稳定性的调色剂。提供了一种调色剂，其具有核壳结构，其包含含有结晶聚酯，无定形聚酯，着色剂和脱模剂的芯; 和含有树脂微粒的壳，并且包括外部添加剂。调色剂在25℃环境下在0.5mN的压力下压缩时的变形量H1为0.2μm以上且1.5μm以下。变形量H1与在50℃环境下以0.5mN的压力压缩时的变形量H2之差D为0.0μm以上且1.0μm以下。当调色剂在90℃下熔融时，调色剂的表面粗糙度Ra为0.02μm以上且0.40μm以下。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2012008530A Toner and production method of the same 审中-公开
标题翻译：相同的调色剂及其制备方法
公开(公告)号：JP2012008530A
公开(公告)日：2012-01-12
申请号：JP2011096481
申请日：2011-04-22
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MIYAAKE AMI , SUGIURA HIDEKI , MIZOGUCHI YUKA
IPC分类号： G03G9/087 , G03G9/08
CPC分类号： G03G9/0806 , G03G9/08755 , G03G9/08797
摘要： PROBLEM TO BE SOLVED: To provide toner excellent in low temperature fixing property, heat-resistant storage property and filming resistance, and to provide a production method of the toner, developer containing the toner, and an image forming apparatus and a process cartridge using the developer.SOLUTION: The toner contains crystalline polyester, amorphous polyester, colorant and a release agent. The crystalline polyester has an endothermic peak temperature T of 60°C or higher and 80°C or lower for the temperature T obtained by a reversible thermal flow curve during the second time of a temperature rising period in temperature modulation DSC. In the second time of the temperature rising period in the temperature modulation DSC, the endothermic amount Qis 3 J/g or more and 20 J/g or less for the temperature obtained from an area in the temperature range from 0°C to 50°C in an area between the reversible heat flow curve and a base line Ldrawn between points at 0°C and 100°C on the reversible heat flow curve.
摘要翻译：要解决的问题：提供低温定影性，耐热保存性和耐成膜性优异的调色剂，含有调色剂的显影剂和图像形成装置及方法的制造方法使用开发者的墨盒。
解决方案：调色剂含有结晶聚酯，无定形聚酯，着色剂和脱模剂。对于在温度调制DSC的升温期间的第二次可逆热流曲线得到的温度T，结晶性聚酯的吸热峰温度T为60℃以上且80℃以下。在温度调制DSC的温度上升期间的第二时间，对于获得的温度，吸热量Q 1 为3J / g以上且20J / g以下从可逆热流曲线与在0℃的点之间绘制的基线L 1 之间的区域中从0℃至50℃的温度范围内的区域， 100°C在可逆热流曲线上。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2011257738A Toner, two-component developer, process cartridge and color image forming apparatus 有权
标题翻译：调色剂，双组分显影剂，方法盒和彩色图像形成装置
公开(公告)号：JP2011257738A
公开(公告)日：2011-12-22
申请号：JP2011072627
申请日：2011-03-29
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUGIURA HIDEKI , MIZOGUCHI YUKA
IPC分类号： G03G9/08 , G03G9/087 , G03G9/10 , G03G15/20
CPC分类号： G03G15/08 , G03G9/0819 , G03G9/0821 , G03G9/0827 , G03G9/08797 , G03G9/09321 , G03G9/09371 , G03G9/09392 , G03G2215/0602
摘要： PROBLEM TO BE SOLVED: To provide a toner having low temperature fixability in a high temperature and high humidity environment (for example, at a temperature of 45°C and humidity of 80%) and capable of preventing carrier spent, and to provide a two-component developer, a process cartridge and a color image forming apparatus using the toner.SOLUTION: The toner has a core-shell structure comprising a core containing at least a first binder resin, a colorant and a release agent, and a shell containing at least a second binder resin. The toner shows a softening index of from 86°C to 95°C and a thermal hardness of from 0.7 to 1.8.
摘要翻译：要解决的问题：提供在高温高湿环境（例如，在45℃和80％的湿度）下具有低温定影性的调色剂，并且能够防止载体耗尽，并且提供双组分显影剂，处理盒和使用调色剂的彩色图像形成装置。调色剂具有核 - 壳结构，其包含至少含有第一粘合剂树脂，着色剂和脱模剂的芯和至少含有第二粘合剂树脂的壳。调色剂的软化指数为86〜95℃，热硬度为0.7〜1.8。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2011018029A Toner for developing electrostatic charge image, developer, image forming method, and image forming apparatus 有权
标题翻译：用于开发静电电荷图像，开发者，图像形成方法和图像形成装置的调色剂
公开(公告)号：JP2011018029A
公开(公告)日：2011-01-27
申请号：JP2010112184
申请日：2010-05-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MIZOGUCHI YUKA , SUGIURA HIDEKI
IPC分类号： G03G9/08 , G03G9/087 , G03G15/20
CPC分类号： G03G9/0821 , G03G9/0806 , G03G9/0819 , G03G9/0827 , G03G9/08755 , G03G9/08797 , G03G2215/0607
摘要： PROBLEM TO BE SOLVED: To provide a toner for developing an electrostatic charge image, the toner having excellent low temperature fixability from the viewpoint of saving energy, and heat-resistant storage property free of blocking in a high temperature and high humidity environment during transportation, and capable of forming high-quality images, and to provide a developer, an image forming apparatus and an image forming method using the toner for developing an electrostatic charge image.SOLUTION: The toner for developing an electrostatic charge image includes a binder resin; a colorant; and a release agent, wherein the toner has a glass transition temperature Tg of from 55 to 75°C, a melting point T1/2 of from 95 to 125°C, as measured by a flow tester in a 1/2 method, and ΔTs of from 1 to 5°C. The ΔTs is defined by ΔTs=Ts-T(Ls/2), wherein Ts is a softening point of the toner, T(Ls/2) is a temperature when a stroke is Ls/2; and Ls is a stroke (mm) at Ts.
摘要翻译：要解决的问题：为了提供用于显影静电荷图像的调色剂，从节能的观点出发，具有优异的低温定影性的调色剂和在运输过程中在高温高湿环境下无阻塞的耐热储存性，并且能够形成高质量的图像，并且提供使用用于显影静电荷图像的调色剂的显影剂，图像形成装置和图像形成方法。解决方案：用于显影静电荷图像的调色剂包括粘合剂树脂; 着色剂和脱模剂，其中调色剂的玻璃化转变温度Tg为55至75℃，熔点T1 / 2为95至125℃，通过流动测试仪以1/2方法测量，以及 1至5°C的ΔTs。 ΔTs由ΔTs= Ts-T（Ls / 2）定义，其中Ts是调色剂的软化点，T（Ls / 2）是行程为Ls / 2时的温度; 并且Ls是Ts处的行程（mm）。

6. 发明专利

JP2010190956A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2010190956A
公开(公告)日：2010-09-02
申请号：JP2009032583
申请日：2009-02-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ISHIKAWA MASAHIKO , SUGIURA HIDEKI , SAKAGUCHI YUKA
IPC分类号： G03G9/08 , G03G9/087 , G03G9/10 , G03G15/08 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus solving greasing caused by toner scattering and not only allowing the use of small particle diameter toner but improving dot reproducibility by non-contact development with the use of the small particle diameter toner. SOLUTION: The tandem type image forming apparatus 1 has a developing apparatus 13 for developing an electrostatic latent image on a photoreceptor 11 disposed at a space in a position to face a toner supply roller 131 by applying DC voltage and AC voltage in a superimposed manner to a toner cloud generating electrode 14 installed between the toner supply roller 131 and the photoreceptor 11, at spaces from both of them, thereby applying electric potential to the toner supplied by the toner supply roller 131 to cause the toner to fly. The toner contains at least a binder resin, a colorant and a release agent, and a total energy value when measuring in a state of ventilating at ventilation speed of 0.6 mm/sec by a powder rheometer satisfies 3-15 mJ. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种解决由调色剂散射引起的油脂化的图像形成装置，不仅允许使用小粒径调色剂，而且通过使用小粒径调色剂，通过非接触显影提高点再现性。串联型图像形成装置1具有显影装置13，用于通过将直流电压和交流电压施加在调色剂供应辊131的面对上的空间中的感光体11上显影静电潜像叠加到安装在调色剂供应辊131和感光体11之间的调色剂云生成电极14的两个空间处，从而向由调色剂供应辊131供应的调色剂施加电势，使调色剂飞行。调色剂至少含有粘合剂树脂，着色剂和脱模剂，并且当通过粉末流变仪在通风速度为0.6mm / sec的通风状态下测量时的总能量值满足3-15mJ。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2010044354A Toner, developer, process cartridge, image forming apparatus, and image forming method 有权
标题翻译：调色剂，开发商，工艺盒，图像形成装置和图像形成方法
公开(公告)号：JP2010044354A
公开(公告)日：2010-02-25
申请号：JP2009032946
申请日：2009-02-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUGIURA HIDEKI
IPC分类号： G03G9/08 , G03G9/087 , G03G15/01
CPC分类号： G03G9/09307 , G03G9/0819 , G03G9/0827 , G03G9/09328 , G03G9/0935 , G03G9/09392 , G03G2215/0607
摘要： PROBLEM TO BE SOLVED: To provide a toner having supreme low temperature fixability, heat resistant storage property, developing stability and responsiveness for high-speed printing, and to provide a developer, a process cartridge, an image forming apparatus and an image forming method using the toner. SOLUTION: The toner has a core-shell structure composed of a core and a shell having a thickness of 0.01 μm to 2 μm on a surface of the core, and contains at least a binder resin and a colorant, wherein the toner satisfies a relationship expressed by 1.1≤ST/CT≤2.0 , wherein ST is a softening temperature of the shell and CT is a softening temperature of the core, both measured by an SPM (Scanning Probe Microscope) probe with an integrated heater. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供具有至少低温定影性，耐热储存性，显影稳定性和高速印刷反应性的调色剂，并提供显影剂，处理盒，成像设备和图像使用调色剂的成型方法。解决方案：调色剂具有核心结构，其核心部分和壳体的核心层表面厚度为0.01μm至2μm，并且至少含有粘合剂树脂和着色剂，其中调色剂满足由1.1≤ST/CT≤2.0表示的关系，其中ST是壳的软化温度，CT是芯的软化温度，均由具有集成加热器的SPM（扫描探针显微镜）探针测量。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2008310354A Toner for electrostatic image development, developer containing the same, image forming method, and image forming apparatus 审中-公开
标题翻译：用于静电图像发展的调色剂，包含其的显影剂，图像形成方法和图像形成装置
公开(公告)号：JP2008310354A
公开(公告)日：2008-12-25
申请号：JP2008205930
申请日：2008-08-08
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUGIURA HIDEKI , MOCHIZUKI MASARU , ASAHINA YASUO , UMEMURA KAZUHIKO , MASUDA MINORU , TAMURA TOMOMI
IPC分类号： G03G9/09 , G03G9/08 , G03G9/087 , G03G15/01 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a toner for electrostatic image development which has excellent charge stability, produces little weakly charged or reversely charged toner, and causes neither toner scattering nor ground stain, even after outputting several ten thousand images in a high temperature and high humidity environment after long-time storage in the high temperature and high humidity environment, and not only in a normal temperature and normal humidity environment but also in a low temperature and low humidity environment. SOLUTION: The toner for electrostatic image development contains at least a binder resin, a colorant and a wax, wherein the surface of the toner contains 0.05 to 1.3 at.% of nitrogen atoms, the content of the colorant is 2 to 15 wt.% based on the amount of the toner and the wax has a dispersion diameter of 0.15 to 3 μm. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供具有优异的电荷稳定性的静电图像显影用调色剂，产生很少的弱电荷或反相电荷的调色剂，并且即使在高达几万张图像之后也不会引起调色剂飞散和地面污渍在高温高湿环境下长期储存后，不仅在常温常湿环境下，而且在低温低湿环境下，解决方案：静电图像显影用调色剂至少含有粘合剂树脂，着色剂和蜡，其中调色剂的表面含有0.05〜1.3原子％的氮原子，着色剂的含量为2〜15 基于调色剂的量的重量％，蜡的分散直径为0.15〜3μm。版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2008276269A Method for forming full-color image and full-color image forming apparatus 审中-公开
标题翻译：用于形成全彩色图像和全彩色图像形成装置的方法
公开(公告)号：JP2008276269A
公开(公告)日：2008-11-13
申请号：JP2008209829
申请日：2008-08-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUGIURA HIDEKI , MOCHIZUKI MASARU , IWAMOTO YASUTAKA , ASAHINA YASUO , UMEMURA KAZUHIKO , ICHIKAWA TOMOYUKI , NAKAYAMA SHINYA , UCHIUMI TOMOKO , SAKATA KOICHI
IPC分类号： G03G9/08 , G03G5/08 , G03G9/087
CPC分类号： G03G9/08782 , G03G9/0825
摘要： PROBLEM TO BE SOLVED: To provide a toner excellent in long-term storage stability by controlling a dispersed state of wax near the toner surface and improving not only anti-hot-offset properties and to render the fixing properties into favorable but also blocking resistance. SOLUTION: The toner contains at least a binder resin, a colorant and a wax, wherein a wax content is 3 to 21 mass% of the total mass of the toner as a value obtained by expressing absorbed heat quantity of the wax measured by a DSC (differential scanning calorimetry) method in term of mass. The toner has a peak intensity ratio of (P 2850 /P 828 ) of 0.01 to 0.40 between a peak (2,850 cm -1 ) originating in the wax and a peak (828 cm -1 ) originating in the binder resin measured by an FTIR-ATR (Fourier transform infrared attenuated total reflection) method, as a value which defines the amount of the wax present in a region from the surface of a toner particles to a depth of 0.3 μm, and at least part of the wax is present as a plurality of independent wax dispersed particles included in the toner particles. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过控制调色剂表面附近的蜡的分散状态，提供长期保存稳定性优异的调色剂，不仅提高耐热胶印性，并且使定影性能变好，抗阻性。调色剂含有至少一种粘合剂树脂，着色剂和蜡，其中蜡含量为调色剂总质量的3〜21质量％，作为通过表示所测得的蜡的吸收热量而得到的值通过DSC（差示扫描量热法）测定质量。调色剂的峰值强度比（P 2850 / P 828 ）在起始峰值（2,850厘米 -1 ）之间为0.01至0.40 在蜡中和通过FTIR-ATR（傅立叶变换红外衰减全反射）法测定的起始于粘合剂树脂的峰（828cm×SP> -1 ）作为定义蜡量的值存在于从调色剂颗粒的表面到0.3μm的深度的区域中，并且蜡的至少一部分作为包含在调色剂颗粒中的多个独立的蜡分散颗粒存在。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2007140546A Electrophotographic toner, method of manufacturing same, and electrophotographic development apparatus 有权
标题翻译：电子印刷助剂，其制造方法和电子显影开发装置
公开(公告)号：JP2007140546A
公开(公告)日：2007-06-07
申请号：JP2007004567
申请日：2007-01-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUGIURA HIDEKI , KONDO FUMIO
IPC分类号： G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide: an electrophotographic toner with which a high-grade image, more particularly an image extremely little in scumming, can be obtained at an appropriate image density without contamination of an electrostatic charging device, a development apparatus, a photoreceptor, and an intermediate transfer member by a developer, and which has reproducibility even with any transfer media and can form the stable image free of image blur, dust and transfer omission; a method of manufacturing the same; and an electrophotographic photoreceptor. SOLUTION: The electrophotographic toner including at least a binder resin, a colorant and an external additive is characterized in that: the binder resin is an epoxy polyol resin; the external additive is formed by subjecting inorganic particles of ≤100 nm in the average grain size of the primary particles to hydrophobic treatment; the residual rate of the hydrophobic treatment agent after chloroform extraction treatment is 40 to 98.5 based on the weight and at least a compound having an organopolysiloxane structure is included in the component remaining after the chloroform extraction treatment of the inorganic particulates subjected to the hydrophobic treatment. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供：可以在适当的图像浓度下获得高级图像，更特别是在浮渣中极少的图像的电子照相调色剂，而不会污染静电充电装置，显影装置，感光体和中间转印部件，并且即使使用任何转印介质也具有再现性，并且可以形成没有图像模糊，灰尘和转移省略的稳定图像; 其制造方法; 和电子照相感光体。解决方案：至少包含粘合剂树脂，着色剂和外部添加剂的电子照相调色剂的特征在于：粘合剂树脂是环氧多元醇树脂; 通过使初级粒子的平均粒径≤100nm的无机粒子进行疏水化处理，形成外部添加剂。氯仿提取处理后的疏水性处理剂的残留率为40〜98.5，至少具有有机聚硅氧烷结构的化合物包含在进行了疏水处理的无机微粒的氯仿提取处理后剩余的成分中。版权所有（C）2007，JPO＆INPIT

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