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1. 发明专利

JP2009069840A Color developing method, developing apparatus and developing toner for electrostatic latent image 有权
标题翻译：彩色显影方法，开发用于静电图像的设备和开发调色剂
公开(公告)号：JP2009069840A
公开(公告)日：2009-04-02
申请号：JP2008272682
申请日：2008-10-23
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAWADA TOYOSHI , SUZUKI MASANORI , KATO MITSUTERU , WATANABE YOICHIRO , YAMASHITA MASAHIDE , KOBAN AKIHIRO , SHIRAISHI KEIKO
IPC分类号： G03G9/083 , G03G9/09 , G03G13/09 , G03G15/01 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a dry two-component color developing method and device causing neither scumming nor toner scattering even in continuous output of many images of large image areas, excelling in fluidity, causing less filming or the like and obtaining stable color image quality over a long period of time even when using a toner with a small particle size in color development for developing electrostatic latent images used in an electrophotographic method, an electrostatic printing method, or the like. SOLUTION: The developing method and device are provided for electrostatically transferring the electrostatic latent image formed on a latent image carrier, as it is or through an intermediate transfer body to a transfer material using BK toner containing 10-30 pts.wt. of a magnetic substance containing manganese or titanium based on 100 pts.wt. of binding resin, having a saturation magnetization value of 0.17-6.25 emu/g and true specific gravity of 1.33-1.46 g/cm 3 . COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种干燥的双组分彩色显影方法和装置，即使在大图像区域的许多图像的连续输出中也不起浮渣或调色剂散射，流动性优异，造成较少的成膜等并获得即使使用在电子照相方法，静电印刷法等中使用的显影静电潜像的彩色显影中的具有小粒径的调色剂，也能够长期稳定的彩色图像质量。解决方案：提供显影方法和装置，用于将潜像载体上形成的静电潜像原样或通过中间转印体静电转印到使用含有10-30重量份的BK调色剂的转印材料上。的含有锰或钛的磁性物质基于100重量份的饱和磁化强度值为0.17-6.25emu / g，真比重为1.33-1.46g / cm 3。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2006313378A Electrophotographic image forming apparatus 有权
标题翻译：电子图像形成装置
公开(公告)号：JP2006313378A
公开(公告)日：2006-11-16
申请号：JP2006195338
申请日：2006-07-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAKAZATO YASUFUMI , TAKEDA YUUSUKE , KAI SO , MURAMATSU SATOSHI , SUZUKI MASANORI , SUZUKI YASUO , SHIMADA KAZUYUKI
IPC分类号： G03G21/00 , G03G21/18
摘要： PROBLEM TO BE SOLVED: To efficiently remove a factor material harmful to image forming from the surroundings of a photoreceptor. SOLUTION: The image forming apparatus is provided with a main body case and an image forming unit 6 that houses at least the photoreceptor 13 in an image forming case 12. The image forming unit 6 has only an opening 17 formed for transfer where part of photoreceptor 13 is exposed as an opening from which the factor material harmful to image forming may flow in the image forming unit 6 in the state attached to the main body case 1 of the image forming apparatus. The image forming apparatus is further provided with an air conditioning means 11 to remove the factor material harmful to image forming which flows in the image forming unit 6 from the outside. This can significantly reduce the volume of the image forming unit 6 compared to the volume of the main body case 1, and can increase airtightness thereby the air conditioning means 11 efficiently removes the factor material harmful to image forming from the surroundings of the photoreceptor 13. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：有效地从感光体的周围去除对图像形成有害的因子材料。解决方案：图像形成装置设置有主体壳体和在图像形成壳体12中至少容纳感光体13的图像形成单元6.图像形成单元6仅具有形成用于传送的开口17，感光体13的一部分作为图像形成装置的主体外壳1的状态，作为图像形成单元6的图像形成单元6流通的因素材料，露出作为开口。图像形成装置还设置有空调装置11，以从外部除去在图像形成单元6中流动的对图像形成有害的因子材料。与主体外壳1的体积相比，能够显着降低图像形成单元6的体积，能够提高气密性，从而空气调节单元11有效地从感光体13的周围除去对图像形成有害的因素材料。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2004117912A Electrostatic charge image developing toner 有权
公开(公告)号：JP2004117912A
公开(公告)日：2004-04-15
申请号：JP2002281900
申请日：2002-09-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAITO TAKUYA , SUGIYAMA KOSHIN , WATANABE YOICHIRO , YAMASHITA YUJI , SUZUKI MASANORI
IPC分类号： G03G9/08 , G03G9/087 , G03G9/097
摘要： PROBLEM TO BE SOLVED: To provide an electrostatic charge image developing toner capable of forming visible images with good sharpness over a prolonged period of time, having excellent low temperature fixability and anti-offsetting property, and not causing contamination of a fixing device and images, and to provide a developer containing the toner, a container holding the toner, an image forming method using the toner, and an image forming apparatus filled with the toner. SOLUTION: The electrostatic charge image developing toner is obtained by dissolving or dispersing a toner composition containing a modified polyester resin capable of reacting with active hydrogen in an organic solvent, reacting the resulting solution or dispersion with a cross-linking agent and/or an extender in an aqueous medium containing fine resin particles, and removing the solvent of the dispersion. The toner binder resin includes an unmodified polyester resin as well as the modified polyester resin. At least styrene and methacrylic acid are used as monomers as starting materials of the fine resin particles. When the weight proportion of the styrene to the starting materials of the fine resin particles is represented by a [wt.%] and that of the methacrylic acid by b [wt.], the expressions 10≤a≤51, 15≤b≤51 and 0.4≤a/b≤2.5 are satisfied at the same time. COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2004085743A Image forming color toner, image forming apparatus and toner bottle 有权
公开(公告)号：JP2004085743A
公开(公告)日：2004-03-18
申请号：JP2002244496
申请日：2002-08-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUZUKI MASANORI , SAITO TAKUYA , YAMASHITA YUJI , WATANABE YOICHIRO , TAKADA TAKESHI , SUGIYAMA KOSHIN , MOCHIZUKI MASARU , IWAMOTO YASUTAKA , KOIKE TAKAYUKI
IPC分类号： G03G9/08 , G03G9/087 , G03G9/09
CPC分类号： G03G9/08797 , G03G9/08755 , G03G9/08764 , G03G9/08768 , G03G9/08782 , G03G9/08791 , G03G9/08795
摘要： PROBLEM TO BE SOLVED: To provide color toner giving a moderate image gloss and excellent color reproducibility, having a satisfactory anti-offsetting property even in a fixing method in which a fixing roller is not coated with releasing oil or the coating weight of oil is made extremely small, and further having excellent transferability, durability and stability of a charged state to humidity, and to provide an image forming apparatus using the toner and a toner bottle filled with the toner. SOLUTION: The image forming color toner is releasing agent-containing toner obtained by dissolving a toner composition material including a modified polyester resin capable of forming urea bonding in an organic solvent in a releasing agent-containing aqueous medium, allowing a polyaddition reaction to take place in the aqueous medium, removing the solvent of the resulting dispersion and carrying out washing, wherein a modified resin containing the above releasing agent is dispersed in a binder resin in an undissolved state, and in the modified resin, at least part of the releasing agent has been modified with a vinyl monomer having an average ester group concentration of 8 to 30 wt.%. COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2004045772A Electrostatic charge image developing toner and developing method 有权
公开(公告)号：JP2004045772A
公开(公告)日：2004-02-12
申请号：JP2002203202
申请日：2002-07-11
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANAKA MOTOHARU , SUZUKI MASANORI , SAWADA TOYOSHI , NAGAYAMA MASASHI
IPC分类号： G03G9/09 , G03G9/083 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a black toner for developing electrostatic charge image, which is safe to the human body, low in cost and capable of forming an image of high image quality. SOLUTION: The electrostatic charge image developing toner consists essentially of a resin and a metal oxide containing at least Fe oxide and Gd oxide, the composition of which is represented by the formula Gd x Fe 3-x O 4 (where 0.25≤x≤2). COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2003015348A Electrostatic image developing toner 有权
标题翻译：静电图像显影剂
公开(公告)号：JP2003015348A
公开(公告)日：2003-01-17
申请号：JP2001202049
申请日：2001-07-03
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUZUKI MASANORI , WATANABE YOICHIRO , YAMASHITA MASAHIDE , WATANABE KAZUTO , SHIRAISHI KEIKO , KATO MITSUTERU , KONDO MAIKO
IPC分类号： G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide electrostatic image developing toner capable of accomplishing both of low-temperature fixation and offset resistance, also, capable of obtaining good image quality after printing many sheets, and capable of coping with the reduction of a particle size.
SOLUTION: As for the electrostatic image developing toner, the toner contains at least two or more kinds of resin and wax, and the resin and the wax are mutually made in non-compatible state, and the resin and the wax have a mutual separation structure like sea and islands, another resin is dispersed like islands in the sea-like continuous resin, and the wax is substantially included in some of the island-like resin and the wax is not substantially included in some of the island-like resin.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了提供能够实现低温定影和抗偏移性两者的静电图像显影调色剂，也能够在印刷多张片材之后获得良好的图像质量，并且能够应对粒径的降低。解决方案：对于静电图像显影调色剂，调色剂含有至少两种或更多种树脂和蜡，并且树脂和蜡相互制造成不相容的状态，并且树脂和蜡具有相互分离结构像海和岛一样，岛状分散在海状连续树脂中，蜡基本上包含在一些岛状树脂中，并且蜡几乎不包括在一些岛状树脂中。

7. 发明专利

JP2003005442A Electrostatic charge image developing color toner 有权
标题翻译：静电充电图像开发彩色调色剂
公开(公告)号：JP2003005442A
公开(公告)日：2003-01-08
申请号：JP2001194458
申请日：2001-06-27
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： WATANABE YOICHIRO , SUZUKI MASANORI , SHIRAISHI KEIKO , WATANABE KAZUTO , YAMASHITA MASAHIDE , KATO MITSUTERU , KONDO MAIKO
IPC分类号： G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide an electrostatic charge image developing color toner having proper gloss of images, excellent reproducibility of colors in images on plain paper and projected images of an OHP sheet and also having sufficient offset preventing property in the fixing method in which no release oil or a trace amount of the oil is applied on a fixing member.
SOLUTION: In the electrostatic charge image developing color toner composed of at least a binder resin and a coloring agent, a mixture of a linear polyester resin (A) having 4,000 to 14,000 weight average molecular weight by gel permeation chromatography(GPC) and a linear polyester resin (B) having 18,000 to 60,000 weight average molecular weight by GPC is used to control the weight average molecular weight of the binder resin to 13,000 to 30,000 by GPC.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供具有适当的图像光泽度的静电电荷图像显影彩色调色剂，在普通纸上的图像中的颜色的再现性以及OHP片材的投影图像，并且还具有足够的防止偏移的固定方法，其中no 释放油或微量的油被施加到固定构件上。解决方案：在由至少粘合剂树脂和着色剂组成的静电荷成像显影彩色调色剂中，通过凝胶渗透色谱法（GPC）测定具有4,000-14,000重均分子量的直链聚酯树脂（A）和线性聚酯树脂通过GPC测定重均分子量为18,000〜60,000的聚酯树脂（B），通过GPC将粘合剂树脂的重均分子量控制在13000〜30,000。

8. 发明专利

JP2000075560A Two-component developer for electrophotography 有权
标题翻译：用于电子照相的两个组件开发者
公开(公告)号：JP2000075560A
公开(公告)日：2000-03-14
申请号：JP16738199
申请日：1999-06-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MATSUDA HIROAKI , SUZUKI MASANORI , SUGIYAMA AKIYOSHI , HIGUCHI HIROTO
IPC分类号： G03G9/113 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To obtain an electrophotographic carrier capable of providing a copied image having high image quality and high definition and suitable for use in combination with a toner of a small particle diameter and to obtain an electrophotographic two-component developer contg. the carrier and an image forming device using the developer. SOLUTION: The two-component developer consists essentially of a toner having
摘要翻译：要解决的问题：获得能够提供具有高图像质量和高清晰度的复印图像的电子照相载体，并且适合与小粒径的调色剂组合使用并获得电子照相双组分显影剂遮盖物。载体和使用显影剂的图像形成装置。解决方案：双组分显影剂基本上由具有<=8μm体积平均粒径的调色剂和由载体芯颗粒和载体芯涂层组成的载体组成。涂层基本上由硅树脂和硅油组成。载体的流动性<= 45“。

9. 发明专利

JP2005049888A 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：JP2005049888A
公开(公告)日：2005-02-24
申请号：JP2004257840
申请日：2004-09-06
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KOBAN AKIHIRO , SUZUKI MASANORI
IPC分类号： G03G9/08
摘要： PROBLEM TO BE SOLVED: To retain chargeability of a toner, particularly stable chargeability in long term use, to ensure high density and little variation in image density, to enhance thin line reproducibility and resolution, and to obtain a good image free from voids.
SOLUTION: In the toner comprising at least a colorant, a binder resin and fine particles, the fine particles are a mixture of fine hydrophobic titanium oxide particles and fine hydrophobic silica particles, and the surfaces of the fine hydrophobic titanium oxide particles are substantially coated with a compound having a chemical structure of formula (I) and/or its condensate.
COPYRIGHT: (C)2005,JPO&NCIPI

10. 发明专利

JP2004212451A Electrostatic charge image developing yellow toner, developer using the same, developing device, and developing method 有权
公开(公告)号：JP2004212451A
公开(公告)日：2004-07-29
申请号：JP2002379071
申请日：2002-12-27
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMASHITA YUJI , SAITO TAKUYA , SUZUKI MASANORI , WATANABE YOICHIRO , TAKADA TAKESHI , KOIKE TAKAYUKI , IWAMOTO YASUTAKA , MOCHIZUKI MASARU , SUGIYAMA KOSHIN
IPC分类号： G03G9/09 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a yellow toner having good transferability, stable cleanability, and good dispersibility of a pigment. SOLUTION: In a toner produced from a system prepared by dispersing drops of oil containing at least a pigment and a binder resin component in an aqueous phase, a bis-acetoacetallylide pigment is used as the pigment. Preferably, the objective yellow toner is obtained by dissolving or dispersing a toner composition containing modified polyester resin capable of urea linkage and C.I. Pigment Yellow 155 in an organic solvent, dispersing the resulting solution or dispersion in an aqueous medium, reacting it with a crosslinking agent and/or an extender, and removing the solvent from the resulting dispersion. COPYRIGHT: (C)2004,JPO&NCIPI

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