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31. 发明专利

JP2006085089A Fixing device and image forming apparatus 审中-公开
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2006085089A
公开(公告)日：2006-03-30
申请号：JP2004272483
申请日：2004-09-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MATSUOKA SONOO , ASAHINA YASUO , ICHIKAWA TOMOYUKI , KOBAN AKIHIRO , MOCHIZUKI MASARU , NAKAJIMA HISASHI , NAKAYAMA SHINYA , SAITO TAKUYA , SAKATA KOICHI , SASAKI FUMIHIRO , UCHINOKURA OSAMU
IPC分类号： G03G15/20 , G03G9/08 , G03G9/087 , G03G9/09 , G03G9/097
摘要： PROBLEM TO BE SOLVED: To overcome the problem of melting-out by providing a fixing device and an image forming apparatus of not more than a specified performance having a minute offset deposition rate of toner to a cleaning roller, which is used for the fixing rotor of the image forming apparatus. SOLUTION: In the fixing device 25, the deposition rate of the toner depositing on the cleaning roller 256 or 257 in the figure is made ≤20%, or 30 mg per 1000 pieces of image charts in an image area ratio. By employing such a deposition rate as shown in an embodiment, the temperature of melting out from the cleaning roller is kept high about 200°C in a table 1 (not shown), which results in preventing the re-melting of the toner. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题为了克服通过提供一种定影装置和图像形成装置来解决熔化的问题，所述定影装置和图像形成装置不超过具有调色剂的微小偏移沉积速率的特定性能，其用于清洁辊图像形成装置的固定转子。解决方案：在定影装置25中，图像中的清洁辊256或257上沉积的调色剂的沉积速率以每个图像图像的图像面积比为≤20％或30mg。通过采用如实施例中所示的沉积速率，从清洁辊中熔化的温度在表1（未示出）中保持高达约200℃，这导致防止调色剂的再熔化。版权所有（C）2006，JPO＆NCIPI

32. 发明专利

JP2006039446A Image forming method, toner for electrostatic charge image development 审中-公开
标题翻译：图像形成方法，用于静电电荷图像开发的调色剂
公开(公告)号：JP2006039446A
公开(公告)日：2006-02-09
申请号：JP2004222960
申请日：2004-07-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ICHIKAWA TOMOYUKI , SASAKI FUMIHIRO , KOBAN AKIHIRO , MATSUOKA SONOO , SAITO TAKUYA , ASAHINA YASUO , NAKAYAMA SHINYA , SAKATA KOICHI , IWAMOTO YASUTAKA , SUGIURA HIDEKI , UCHINOKURA OSAMU , NAKAJIMA HISASHI , MOCHIZUKI MASARU
IPC分类号： G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a toner which has an excellent fixability, which effectively suppresses a cleaning defect and an occurrence of filming due to the cleaning defect, and which can obtain a toner low-temperature fixability in a toner using an additive agent, a developer using this toner, and an image forming method thereof. SOLUTION: A toner for electrostatic latent image development at least has silica fine grains whose primary average grain diameter is 90 to 300 nm as an additive agent. The additive agent isolation ratio A including the silica fine grains of a toner before development, and the additive agent isolation ratio B including the silica fine grains of a toner which remains on an image carrier after transfer satisfy the relation of A b. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种具有优异的定影性的调色剂，其有效地抑制清洁缺陷和由于清洁缺陷引起的成膜的发生，并且可以获得调色剂中的调色剂低温定影性添加剂，使用该调色剂的显影剂及其图像形成方法。解决方案：用于静电潜像显影的调色剂至少具有作为添加剂的一次平均粒径为90至300nm的二氧化硅细颗粒。包含显影前的调色剂的二氧化硅细粒的添加剂分离比A和包含转印后保留在图像载体上的调色剂的二氧化硅细粒的添加剂分离比B满足A b的关系。版权所有（C）2006，JPO＆NCIPI

33. 发明专利

JP2006003584A Toner for developing electrostatically charged image, and developer 审中-公开
标题翻译：用于开发静电荷图像和开发者的调色剂
公开(公告)号：JP2006003584A
公开(公告)日：2006-01-05
申请号：JP2004179354
申请日：2004-06-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MATSUOKA SONOO , WATANABE SHINKO , TANAKA CHIAKI , YAMADA MASAHIDE , OKI MASAHIRO , SAITO AKINORI , INOUE RYUTA
IPC分类号： G03G9/087 , C08G63/91 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide toner for developing electrostatically charged images, which is superior in fixability at low temperatures, high-temperature-resistant offset properties, and heat-resistant preservability. SOLUTION: In the toner for developing an electrostatically charged image, which comprises at least a binding resin and a coloring agent, the binding resin contains at least a polyester resin, and the terminal of the polyester resin is sealed by a group expressed by general Formula (1) or (2). It is preferable that the mole ratio between the hydroxyl group and terminal group of the polyester resin be in the range of 0.50 to 5.00, and the mole ratio between the carboxyl group and terminal t-butyl group of the polyester resin be in the range of 0.02 to 5.00. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供在低温下的定影性优异，耐高温偏移性和耐热保存性方面的用于显影静电荷图像的调色剂。解决方案：在用于显影至少包含粘合树脂和着色剂的静电电荷图像的调色剂中，粘合树脂至少含有聚酯树脂，聚酯树脂的末端被表达的基团密封由通式（1）或（2）表示。聚酯树脂的羟基和末端基之间的摩尔比优选在0.50〜5.00的范围内，聚酯树脂的羧基与末端叔丁基的摩尔比在 0.02〜5.00。版权所有（C）2006，JPO＆NCIPI

34. 发明专利

JP2005265887A Image forming method, image forming apparatus, process cartridge and electrostatic image developing toner 有权
标题翻译：图像形成方法，图像形成装置，处理盒和静电图像显影剂
公开(公告)号：JP2005265887A
公开(公告)日：2005-09-29
申请号：JP2004073824
申请日：2004-03-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAKAJIMA HISASHI , UCHINOKURA OSAMU , IWAMOTO YASUTAKA , MOCHIZUKI MASARU , SUGIURA HIDEKI , KOBAN AKIHIRO , ASAHINA YASUO , MATSUOKA SONOO , ICHIKAWA TOMOYUKI , SAITO TAKUYA , NAKAYAMA SHINYA , SAKATA KOICHI
IPC分类号： G03G9/087 , G03G5/08 , G03G15/00 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide an image forming method using a fixing device due to an electromagnetic induction heating system which has an excellent offset resistance and also has an excellent low temperature fixing property.
SOLUTION: The toner is produced as follows; an organic solvent phase in which at least functional group-containing polyester resin is dissolved, an active hydrogen-containing compound and a colorant are dispersed into an aqueous medium phase in which resin fine particles are dispersed, thereby, extension reaction and/or crosslinking reaction between the functional group-containing polyester resin and the active hydrogen-containing compound is allowed to occur and, from dispersion liquid obtained through the reaction, particles are formed. The image forming method comprises a developing process of using an electrostatic image developing toner produced by adding a tertiary amine compound into the organic solvent phase as a developer and a fixing process of using a fixing means of the electromagnetic induction heating system.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种使用由于具有优异的抗偏移性的电磁感应加热系统而使用的定影装置的图像形成方法，并且还具有优异的低温定影性能。
解决方案：调色剂如下生产; 其中至少含有含官能团的聚酯树脂的有机溶剂相，含活性氢的化合物和着色剂分散在其中分散有树脂细颗粒的水性介质相中，由此延伸反应和/或交联反应使含官能团的聚酯树脂和含活性氢的化合物之间发生，并通过反应得到的分散液形成颗粒。图像形成方法包括使用通过将叔胺化合物添加到作为显影剂的有机溶剂相中产生的静电图像显影调色剂和使用电磁感应加热系统的固定装置的定影处理的显影方法。版权所有（C）2005，JPO＆NCIPI

35. 发明专利

JP2005181812A Electrostatic charge image developing toner 审中-公开
标题翻译：静电充电图像显影剂
公开(公告)号：JP2005181812A
公开(公告)日：2005-07-07
申请号：JP2003424502
申请日：2003-12-22
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： WATANABE SHINKO , TANAKA CHIAKI , MATSUOKA SONOO , YAMADA MASAHIDE , OKI MASAHIRO , SAITO AKINORI , INOUE RYUTA
IPC分类号： G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a toner which is excellent in various characteristics, such as aggregation resistance, electrostatic chargeability, fluidity, transferability, and fixing properties and has good offset resistance, makes excellent heat resistant storage properties and low-temperature fixing properties compatible with each other. SOLUTION: The electrostatic charge image developing toner is obtained by cleaning and drying the particles obtained by generating an adhesive base material prepared by reacting an active hydrogen group-containing compound and a polymer reactable with the active hydrogen group-containing compound in an aqueous medium. Resin particulates are added together with bi- or higher valent metal salt into the aqueous medium to immobilize the resin particulates to the surface of the toner. The weight average molecular weight (Mw) of the resin particulates is 8,000 to 1,000,000 and the grain size is preferably 20 to 400 nm. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供具有优异的耐凝集性，静电充电性，流动性，转印性和定影性等各种特性的色调剂，具有良好的抗粘着性，具有优异的耐热储存性和低温性固定属性彼此兼容。解决方案：静电荷图像显影调色剂通过清洗和干燥通过生成通过使含活性氢基的化合物和可与含活性氢基团的化合物反应的聚合物制备的粘合剂基材获得的颗粒，水介质。将树脂颗粒与二价或更高价金属盐一起加入到水性介质中以将树脂颗粒固定在调色剂的表面上。树脂微粒的重均分子量（Mw）为8000〜1,000,000，粒径优选为20〜400nm。版权所有（C）2005，JPO＆NCIPI

36. 发明专利

JP2005122073A Electrostatic charge image developing toner and its image forming method 审中-公开
标题翻译：静电充电图像发生器及其图像形成方法
公开(公告)号：JP2005122073A
公开(公告)日：2005-05-12
申请号：JP2003359892
申请日：2003-10-20
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： WATANABE SHINKO , MATSUOKA SONOO , TANAKA CHIAKI , YAMADA MASAHIDE , OKI MASAHIRO , INOUE RYUTA
IPC分类号： G03G9/08 , G03G9/087 , G03G9/097
摘要： PROBLEM TO BE SOLVED: To provide an electrostatic charge image developing toner having satisfactory offset resistance, fluidity and developing performance and capable of forming visible images of satisfactory sharpness, over a long period of time. SOLUTION: The electrostatic charge image developing toner is obtained at least by dissolving or dispersing a composition containing a polymer having a moiety capable of reacting with a compound having an active hydrogen group; a colorant and a release agent in an organic solvent, dispersing the resulting solution or dispersion of the composition in an aqueous medium, removing the organic solvent, after or while reacting the polymer with the compound having an active hydrogen group; and then carrying out washing and drying. When the polymer is made to react with the compound having the active hydrogen group, a process of controlling a reaction temperature to be within a range of 10 to X°C (where X°C=(the boiling point of the organic solvent)-10°C) so that the solubility of water in the organic solvent is made to be 0.04-30 wt.% is carried out and solubility of water in the organic solvent at 20°C is 0.04-10 wt.%. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供具有令人满意的耐偏移性，流动性和显影性能并且能够长时间形成令人满意的清晰度的可见图像的静电荷图像显影调色剂。解决方案：静电荷图像显影调色剂至少通过溶解或分散含有具有能够与具有活性氢基团的化合物反应的部分的聚合物的组合物而获得; 有机溶剂中的着色剂和脱模剂，在将聚合物与具有活性氢基团的化合物反应之后或之后将所得组合物的溶液或分散体分散在水性介质中，除去有机溶剂; 然后进行洗涤和干燥。当使聚合物与具有活性氢基团的化合物反应时，将反应温度控制在10至X℃（其中X℃=（有机溶剂的沸点） - 10℃），使得水在有机溶剂中的溶解度为0.04-30重量％，水在有机溶剂中在20℃下的溶解度为0.04-10重量％。版权所有（C）2005，JPO＆NCIPI

37. 发明专利

JP2005015589A Manufacturing process of crystalline polyester dispersion liquid, dispersion liquid, imaging toner, developer and method of imaging 审中-公开
标题翻译：结晶聚合物分散液，分散液，成像墨粉，开发商和成像方法的制造工艺
公开(公告)号：JP2005015589A
公开(公告)日：2005-01-20
申请号：JP2003181036
申请日：2003-06-25
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANAKA CHIAKI , WATANABE SHINKO , TAKADA TAKESHI , MATSUOKA SONOO , YAMADA MASAHIDE , INOUE RYUTA , OKI MASAHIRO
IPC分类号： G03G9/087 , C08J3/09 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing process of a dispersion liquid of a crystalline polyester having a width of distribution of the volume average particle size as narrow as 0.2-1.0 μm which is useful for a toner, a dispersion liquid obtained by the process, an imaging toner using the dispersion liquid and a developer and a method of imaging using the toner. SOLUTION: The manufacturing process of the dispersion liquid of the crystalline polyester comprises the steps (a), (b) and (c) in this sequence. Step (a): to heat the crystalline polyester in an organic solvent to obtain a solution; step (b): to cool the solution and precipitate the crystalline polyester to obtain a coarse dispersion liquid; step (c): to pulverize the coarse dispersion liquid with a mechanical pulverizing apparatus to obtain a dispersion liquid with a volume average particle size of 0.2-1 μm. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供具有可用于调色剂的体积平均粒径分布宽度为0.2-1.0μm的结晶聚酯的分散液的制造方法，获得的分散液通过该方法，使用分散液和显影剂的成像调色剂和使用调色剂成像的方法。解决方案：结晶聚酯的分散液的制造方法按照该顺序包括步骤（a），（b）和（c）。步骤（a）：将结晶聚酯在有机溶剂中加热得到溶液; 步骤（b）：冷却溶液并使结晶聚酯沉淀得到粗分散液; 步骤（c）：用机械粉碎装置粉碎粗分散液，得到体积平均粒径为0.2-1μm的分散液。版权所有（C）2005，JPO＆NCIPI

38. 发明专利

JP2012128446A Production method of toner, and developer, container containing toner, process cartridge, image forming apparatus and image forming method 有权
标题翻译：调色剂，开发者，含有调色剂的容器，工艺盒，图像形成装置和图像形成方法的生产方法
公开(公告)号：JP2012128446A
公开(公告)日：2012-07-05
申请号：JP2012028388
申请日：2012-02-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANAKA CHIAKI , WATANABE SHINKO , OKI MASAHIRO , YAMADA MASAHIDE , SAITO AKINORI , MATSUOKA SONOO , INOUE RYUTA , EMOTO SHIGERU
IPC分类号： G03G9/08 , G03G9/087 , G03G9/10 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a production method of toner having a superior cleaning property, giving high picture quality, and having a potato-like shape formed of a plurality of spherical particles having small particle diameters bonded to one another, and to provide an image forming method and the like achieving high picture quality by using toner produced by the above production method of toner.SOLUTION: A production method of toner comprises dissolving or dispersing at least a binder resin and a colorant in an organic solvent to prepare a toner material, emulsifying or dispersing the toner material in an aqueous medium to form oil droplets and removing the organic solvent. In the removing step of the organic solvent, the viscosity of the oil droplets is controlled to a non-Newtonian viscosity so as to form toner in a shape comprising a plurality of the oil droplets bonded to one another.
摘要翻译：解决问题的方法：提供具有优良清洗性，赋予高画质的调色剂的制造方法，并且具有由多个彼此结合的粒径小的球状颗粒形成的马铃薯状形状，以及以通过使用通过上述调色剂的制造方法生产的调色剂来提供图像形成方法等来实现高画质。调色剂的制造方法包括将至少粘合剂树脂和着色剂溶解或分散在有机溶剂中以制备调色剂材料，将调色剂材料乳化或分散在水性介质中以形成油滴并除去有机物溶剂。在有机溶剂的除去步骤中，将油滴的粘度控制为非牛顿粘度，以形成包括彼此结合的多个油滴的形状的调色剂。版权所有（C）2012，JPO＆INPIT

39. 发明专利

JP2008299307A Method for manufacturing toner for electrostatic charge image development and toner for electrostatic charge image development 有权
标题翻译：用于静电电荷图像发展和静电电荷图像发展的调色剂的制造方法
公开(公告)号：JP2008299307A
公开(公告)日：2008-12-11
申请号：JP2008031385
申请日：2008-02-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MATSUOKA SONOO , TAKAHASHI HIROSHI , HIGUCHI SHINZO , KADOTA TAKAHIRO , USAMI TOSHIHIKO , HATTORI MIZUKI , MISAWA TASUKE
IPC分类号： G03G9/087 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide a toner for electrostatic charge image development excellent in low temperature fixability and giving a high-quality image without scattering or base contamination for a long period of time. SOLUTION: The method for manufacturing a toner includes processes of continuously emulsifying and dispersing an organic solvent composition containing a binder resin and a colorant in an organic solvent into an aqueous medium to obtain an emulsified dispersion liquid, reserving the emulsified dispersion liquid through pipes in a reservoir and removing the organic solvent. The toner for electrostatic charge image development is manufactured by controlling in such a manner that the circularity (Sa) of particles in the emulsified dispersion liquid at an exit of pipes in a stage prior to supplying to the reservoir, the circularity (Sb) of particles in the emulsified dispersion liquid reserved in the reservoir in a stage prior to removing the organic solvent, and the circularity (Sc) of particles in the emulsified dispersion liquid after the organic solvent is removed satisfy formulas (1):0≤Sa-Sb≤0.01, (2):0≤Sb-Sc≤0.01 and (3):0≤Sa-Sc≤0.01. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供低温定影性优异的静电荷图像显影用调色剂，能够长时间不产生散射或碱污染的高品质图像。解决方案：调色剂的制造方法包括将含有粘合剂树脂和着色剂的有机溶剂组合物在有机溶剂中连续乳化分散到水性介质中，得到乳化分散液，将乳化分散液保持通过储存器中的管道并除去有机溶剂。静电荷图像显影用调色剂是通过以下方式进行控制来制造的：使得在向储存器供给之前阶段的管道出口处的乳化分散液中的颗粒的圆度（Sa），颗粒的圆形度（Sb）在除去有机溶剂前的阶段中储存的乳化分散液中，除去有机溶剂后的乳化分散液中的颗粒的圆度（Sc）满足式（1）：0≤Sa-Sb≤ 0.01，（2）：0≤Sb-Sc≤0.01和（3）：0≤Sa-Sc≤0.01。版权所有（C）2009，JPO＆INPIT

40. 发明专利

JP2008026567A Toner, manufacturing method of the toner, and image forming method 有权
标题翻译：调色剂，调色剂的制造方法和图像形成方法
公开(公告)号：JP2008026567A
公开(公告)日：2008-02-07
申请号：JP2006198566
申请日：2006-07-20
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAHASHI HIROSHI , MATSUOKA SONOO , KURODA NOBORU , NISHIZAKI TOSHINAGA
IPC分类号： G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a toner, capable of efficiently and easily manufacturing the toner of a uniform composition having a stable volume average grain size and a sharp grain size distribution, a toner which is produced by the manufacturing method of the toner, is improved in electrostatic charging properties, and can eventually prevent the occurrence of scumming, is improved in fine-line reproducibility, and can form a full-color image of high image quality, and to provide an image forming method that uses the toner. SOLUTION: There is provided the manufacturing method of the toner which includes at least an emulsification step of emulsifying and dispersing a dissolved and dispersed material, formed by dissolving and dispersing a toner material, at least containing at least two kinds of resins, a colorant, and a release agent in an organic solvent into an aqueous medium containing resin particles, and in which the viscosity characteristic tanθ at 25°C of the dissolved and dispersed material is 0.70 to 0.95, and the apparent viscosity by a high shear viscometer of the dissolved and dispersed material is in the range of 100 to 400 mPa s. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供能够有效且容易地制造具有稳定的体积平均粒径和尖锐的粒度分布的均匀组合物的调色剂的调色剂的制造方法，通过由调色剂的制造方法提高了静电充电性能，并且最终可以防止浮渣的发生，细线再现性提高，并且可以形成高图像质量的全色图像，并且提供图像形成方法使用墨粉。提供了调色剂的制造方法，其至少包括乳化和分散溶解和分散材料的乳化步骤，所述溶解和分散的材料通过溶解和分散至少包含至少两种树脂的调色剂材料形成，着色剂和有机溶剂中的脱模剂加入到含有树脂颗粒的水性介质中，其中溶解和分散材料的25℃下的粘度特性tanθ为0.70〜0.95，通过高剪切粘度计的表观粘度的溶解和分散的材料在100至400mPa·s的范围内。版权所有（C）2008，JPO＆INPIT

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