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1. 发明专利

JP2014089428A Electrophotographic toner, developer, image forming method, process cartridge, image forming apparatus, and toner container 有权
标题翻译：电子印刷机，开发商，图像形成方法，过程盒，图像形成装置和调色剂容器
公开(公告)号：JP2014089428A
公开(公告)日：2014-05-15
申请号：JP2012242837
申请日：2012-11-02
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SANTO HIDEYUKI , NAKAYAMA SHINYA , YAMAMOTO JUNJI , YAMASHITA DAIKI , AMEMORI SUZUKA
IPC分类号： G03G9/087 , G03G9/09
CPC分类号： G03G9/08764 , G03G9/08797 , G03G9/0926 , G03G13/20
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic toner capable of achieving high color reproducibility, low-temperature fixability, and storage stability, even when a crystalline resin is used as a binder resin; a developer using the electrophotographic toner; and an image forming apparatus and a process cartridge using the developer.SOLUTION: (1) An electrophotographic toner includes a crystalline binder resin having a urethane bond and/or a urea bond, and colorant, in which the dispersion particle diameter of the colorant is 0.5 μm or less in terms of the number average particle diameter, and the rate of the particles having the diameter of 0.7 μm or more is 5 number% or less in a number particle size distribution. (2) The electrophotographic toner according to (1) that has a ratio (Cr)/[(Cr)+(Am)] of 0.15 or more, which is obtained by measuring the electrophotographic toner by an X-ray diffraction device, where (Cr) represents the integral intensity of a spectrum derived from a crystalline structure of the binder resin, and (Am) represents the integral intensity of a spectrum derived from an amorphous structure.
摘要翻译：要解决的问题：即使当使用结晶性树脂作为粘合剂树脂时，提供能够实现高色彩再现性，低温定影性和储存稳定性的电子照相调色剂; 使用电子照相调色剂的显影剂; 以及图像形成装置和使用显影剂的处理盒。解决方案：（1）电子照相调色剂包括具有氨基甲酸酯键和/或脲键的结晶粘合剂树脂和着色剂，其中着色剂的分散体粒径为数均粒径为0.5μm以下，直径为0.7μm以上的粒子的粒径分布为5个数％以下。（2）根据（1）所述的具有0.15以上比例（Cr）/ [（Cr）+（Am）]的电子照相调色剂，其通过X射线衍射装置测量电子照相调色剂而获得，其中（Cr）表示由粘结剂树脂的结晶结构衍生的光谱的积分强度，（Am）表示从非晶结构衍生的光谱的积分强度。

2. 发明专利

JP2014063117A Toner, developer, and image forming device 有权
标题翻译：调色剂，开发商和图像形成装置
公开(公告)号：JP2014063117A
公开(公告)日：2014-04-10
申请号：JP2013004595
申请日：2013-01-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AMEMORI SUZUKA , YAMAMOTO JUNJI , YAMADA MASAHIDE , NAKAJIMA YUKIKO , NAKAYAMA SHINYA , SANTO HIDEYUKI
IPC分类号： G03G9/08 , G03G9/087 , G03G9/10 , G03G15/08
CPC分类号： G03G9/08764 , G03G9/08782 , G03G9/08797 , G03G9/09733
摘要： PROBLEM TO BE SOLVED: To provide toner excellent in heat-resistant preservability, low-temperature fixability, and transferability.SOLUTION: Toner contains crystalline resin having at least one of urethane bond and urea bond, and a compound represented by the following general formula (1). The content of the compound represented by the following general formula (1) is 0.01-0.25 mass%: CHR (1), wherein n represents 8-22, and R represents any of COOH, NH, and OH.
摘要翻译：要解决的问题：提供耐热保存性，低温定影性和转印性优异的调色剂。溶液：调色剂含有具有氨基甲酸酯键和脲键中的至少一个的结晶性树脂和由以下通式表示的化合物 1）。由以下通式（1）表示的化合物的含量为0.01-0.25质量％：CHR（1），其中n表示8-22，R表示COOH，NH和OH中的任一种。

3. 发明专利

JP2013164607A Toner, two-component developer, process cartridge, and image forming apparatus 有权
标题翻译：调色剂，双组分开发商，工艺盒和图像形成装置
公开(公告)号：JP2013164607A
公开(公告)日：2013-08-22
申请号：JP2013075655
申请日：2013-04-01
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAMOTO JUNJI , NAKAYAMA SHINYA , YAMADA MASAHIDE , SANTO HIDEYUKI , YAMASHITA DAIKI , INOUE RYUTA
IPC分类号： G03G9/087 , G03G9/08 , G03G9/10
CPC分类号： G03G9/08755 , G03G9/08764 , G03G9/08793 , G03G9/08795 , G03G9/08797
摘要： PROBLEM TO BE SOLVED: To provide toner having a sufficient charge amount, having less charge environment variation, and capable of showing sufficient fixing performance, in the toner comprising crystalline resin as binder resin.SOLUTION: In the toner comprising at least the crystalline resin as the binder resin, a weight-average molecular weight of a THF-soluble component of the toner is 20,000 or more, and a 50% wettability (W(50%)) by a methanol wettability test is 20 (vol%) or more.
摘要翻译：要解决的问题：在包含结晶树脂作为粘合剂树脂的调色剂中，提供具有足够电荷量的具有较少电荷环境变化并且能够显示足够的定影性能的调色剂。溶液：在至少包含结晶树脂为粘合剂树脂，调色剂的THF可溶性组分的重均分子量为20,000以上，通过甲醇润湿性试验为50％润湿性（W（50％））为20（vol％）以上。

4. 发明专利

JP2013137493A Electrophotographic toner, developer, and image forming apparatus 有权
标题翻译：电子墨粉，开发者和图像形成装置
公开(公告)号：JP2013137493A
公开(公告)日：2013-07-11
申请号：JP2012111401
申请日：2012-05-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAKAJIMA YUKIKO , YAMADA MASAHIDE , NAKAYAMA SHINYA , YAMAMOTO JUNJI , SANTO HIDEYUKI , SAKASHITA SHINGO , AMEMORI SUZUKA , YAMASHITA YUJI , WATANABE MASAKI
IPC分类号： G03G9/097 , G03G9/08 , G03G9/087 , G03G9/10
摘要： PROBLEM TO BE SOLVED: To provide a toner that has excellent low-temperature fixability, hot-offset resistance, and heat-resistance storage stability, solves problems of filming to a carrier and poor rubbing resistance of output images due to insufficient stress resistance of toner, and has excellent chargeability and charge stability for a long period of stirring.SOLUTION: An electrophotographic toner contains at least a binder resin, colorant, a mold release agent, and a charge control agent. The binder resin contains 50 weight% or more of a crystalline resin; the crystalline resin has an urethane bond and/or an urea bond; and the charge control agent is a calixarene derivative represented by the following general formula (I).
摘要翻译：要解决的问题：为了提供具有优异的低温定影性，耐热胶印性和耐热性储存稳定性的调色剂，解决了由于调色剂的耐压性不足导致的对载体的成膜和输出图像的耐摩擦性差的问题并且在长时间的搅拌下具有优异的带电性和电荷稳定性。解决方案：电子照相调色剂至少含有粘合剂树脂，着色剂，脱模剂和电荷控制剂。粘合剂树脂含有50重量％以上的结晶性树脂; 结晶性树脂具有氨基甲酸酯键和/或脲键; 并且电荷控制剂是由以下通式（I）表示的杯芳烃衍生物。

5. 发明专利

JP2013092659A Toner, developer using the same, and image forming apparatus 有权
标题翻译：调色剂，使用它的开发者和图像形成装置
公开(公告)号：JP2013092659A
公开(公告)日：2013-05-16
申请号：JP2011234856
申请日：2011-10-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAMOTO JUNJI , NAKAYAMA SHINYA , YAMADA MASAHIDE , SANTO HIDEYUKI , AMEMORI SUZUKA
IPC分类号： G03G9/087 , G03G9/08
CPC分类号： G03G9/08757 , G03G9/08755 , G03G9/08764 , G03G9/08797
摘要： PROBLEM TO BE SOLVED: To provide a toner using a crystalline resin capable of suppressing the occurrence of aggregation of toner in a developing machine, and to provide a toner using a crystalline resin as a principal component capable of improving image intensity after fixing.SOLUTION: A toner contains at least a lactone compound having a 14 or more-membered ring and a resin having a crystalline polyester unit. A preferred example of the lactone compound having a 14 or more-membered ring is a lactone compound having an ester bond as a part of the ring.
摘要翻译：要解决的问题：提供使用能够抑制显影机中调色剂聚集发生的结晶树脂的调色剂，并提供使用结晶性树脂作为主要成分的调色剂，其能够改善固色后的图像强度。解决方案：调色剂至少含有具有14个或更多元环的内酯化合物和具有结晶聚酯单元的树脂。具有14个以上元环的内酯化合物的优选实例是作为环的一部分具有酯键的内酯化合物。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2012008397A Image forming apparatus, image forming method and process cartridge 审中-公开
标题翻译：图像形成装置，图像形成方法和过程盒
公开(公告)号：JP2012008397A
公开(公告)日：2012-01-12
申请号：JP2010145259
申请日：2010-06-25
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AOKI MITSUO , SANTO HIDEYUKI , NAGAYAMA MASASHI
IPC分类号： G03G9/10 , G03G9/08 , G03G9/087 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus using a two-component developer, the apparatus capable of preventing thermal adhesion of toner on a doctor blade and achieving low-temperature fixing, and providing a high-quality image for a long period of time.SOLUTION: An image forming apparatus includes a developing device that regulates a developer carried on a developer carrier with a doctor blade and deposits the regulated developer onto a latent image on an image carrier to develop the image. The doctor blade has a surface roughness Ra of 0.2 μm or less on a surface where the developer is regulated in upstream with respect to a rotation direction of the developer carrier. The developer is a two-component developer comprising a carrier and toner. The toner comprises: base particles which have a volume average particle diameter of 3.0 to 6.0 μm, in which the toner content having a number-basis particle diameter of 4.0 μm or less is 30% or more by number and in which the toner content having a number-basis particle diameter of 2.0 μm or less is 10% or less by number; and an inorganic fine powder material (comprising an inorganic fine powder material A having a BET specific surface area of 30 to 90 m/g and an inorganic fine powder material B having a BET specific surface area of 100 to 250 m/g) externally added to the base particles.
摘要翻译：要解决的问题：为了提供一种使用双组分显影剂的图像形成装置，该装置能够防止调色剂在刮刀上的热粘附并实现低温定影，并且提供高质量的图像用于很长一段时间解决方案：图像形成装置包括显影装置，其利用刮刀调节载体在显影剂载体上的显影剂，并将调节的显影剂沉积在图像载体上的潜像上以显影图像。刮刀在显影剂相对于显影剂载体的旋转方向上游调节的表面上的表面粗糙度Ra为0.2μm以下。显影剂是包含载体和调色剂的双组分显影剂。调色剂包括：体积平均粒径为3.0〜6.0μm的基础颗粒，其中数量为4.0μm以下的调色剂含量为30％以上，其中调色剂含量为数量级的粒径为2.0μm以下的数量为10％以下。和无机细粉末材料（包含BET比表面积为30〜90μm的无机细粉末材料A和具有BET的无机细粉末材料B 比表面积为100〜250μm =“POST”> 2 / g）。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2004160371A Crusher and crushing method 有权
公开(公告)号：JP2004160371A
公开(公告)日：2004-06-10
申请号：JP2002329951
申请日：2002-11-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANAKA TETSUYA , MAKINO NOBUYASU , SANTO HIDEYUKI
IPC分类号： G03G9/087 , B02C19/06
摘要： PROBLEM TO BE SOLVED: To provide a crusher apparatus with which a crushed particle having a required particle size can be obtained in a high efficiency by improving the colliding and crushing efficiency in a crushing chamber and to shorten the production grade changing time. SOLUTION: This crusher is provided with two or more crushing nozzles 5, the crushing chamber 4 in which a supplied material to be crushed is crushed by the compressed air jetted from the nozzles 5 and a rotor 3 at least. The crushed material made to flow in the rotor 3 from the chamber 4 is sorted into fine powder and coarse powder by centrifugation. The nozzles 5 are arranged so that the compressed air jetted from one of the nozzles 5 is made to collide primarily against that jetted from other nozzles 5 together with the material to be crushed. A secondary collision means 6 is arranged so that the compressed air and crushed material after being subjected to the primary collision is made to collide secondarily against the secondary collision means 6. COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2015038629A トナー、該トナーを用いた現像剤、画像形成装置审中-公开
标题翻译：调色剂，使用调色剂的开发商和图像形成装置
公开(公告)号：JP2015038629A
公开(公告)日：2015-02-26
申请号：JP2014213821
申请日：2014-10-20
申请人：株式会社リコー , Ricoh Co Ltd
发明人： SAKASHITA SHINGO , NAKAYAMA SHINYA , YAMADA MASAHIDE , YAMAMOTO JUNJI , SANTO HIDEYUKI , NAKAJIMA YUKIKO , AMEMORI SUZUKA
IPC分类号： G03G9/087 , G03G9/08
CPC分类号： G03G9/08764 , C08G63/00 , C08G63/91 , C08L67/00 , G03G9/08755 , G03G9/08768 , G03G9/08793 , G03G9/08795 , G03G9/08797 , G03G9/132
摘要：【課題】結晶性樹脂を結着樹脂とするトナーにおいて、紙種によらず一定温度かつ一定速度で定着を可能にすること。【解決手段】結着樹脂として少なくとも結晶性樹脂を含有するトナーにおいて、前記トナーのテトラヒドロフラン(THF)可溶分のゲル浸透クロマトグラフィー(GPC)測定における分子量が100,000以上の割合が5%以上であり、かつ重量平均分子量(Mw)が20,000以上60,000以下であり、トナーのX線回折装置によって得られる回折スペクトルにおいて、結晶構造に由来するスペクトルの積分強度を(C)、非結晶構造に由来するスペクトルの積分強度を(A)とした時の比率(C)/((C)+(A))が、0.13以上であることを特徴とするトナー。なお、このトナーはX線回折装置によって得られる回折スペクトルにおいて、結晶構造に由来するスペクトルの積分強度を(C)、非結晶構造に由来するスペクトルの積分強度を(A)とした時の比率(C)/((C)+(A))が、0.13以上であることが好ましい。【選択図】なし
摘要翻译：要解决的问题：无论使用含有结晶树脂作为粘合剂树脂的调色剂的纸张类型，都能够以恒定温度和恒定速率进行定影。溶解性：在至少含有作为粘合剂树脂的结晶性树脂的调色剂中，的通过凝胶渗透色谱法（GPC）测定的分子量为100,000以上的调色剂的四氢呋喃（THF）可溶物为5％以上; 调色剂的重均分子量（Mw）为20,000以上且60,000以下; 并且在通过X射线衍射装置得到的衍射光谱中，当来自结晶结构的光谱的积分强度为（C）时，来自非晶结构的光谱的积分强度为（A）时，调色剂优选比率（C）/（（C）+（A））为0.13以上。在通过X射线衍射装置获得的衍射光谱中，当来自结晶结构的光谱的积分强度为（C），并且来自非晶结构的光谱的积分强度为（A）时，优选调色剂（C）/（（C）+（A））为0.13以上。

9. 发明专利

JP2013218273A Colorless transparent toner, toner set, developer, image forming apparatus, and image-formed product 有权
标题翻译：无色透明墨粉，墨粉盒，开发者，图像形成装置和图像形成的产品
公开(公告)号：JP2013218273A
公开(公告)日：2013-10-24
申请号：JP2012264780
申请日：2012-12-03
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SABE AKIYOSHI , NAKAYAMA SHINYA , YAMAMOTO JUNJI , NAKAJIMA YUKIKO , SANTO HIDEYUKI
IPC分类号： G03G9/08 , G03G9/087 , G03G9/10
CPC分类号： G03G9/08764 , G03G9/0821 , G03G9/08755 , G03G9/08793 , G03G9/08795 , G03G9/08797 , G03G15/08 , Y10T428/24893
摘要： PROBLEM TO BE SOLVED: To provide a toner that achieves both offset resistance and abrasion resistance.SOLUTION: A colorless transparent toner includes a crystalline resin having a urethane bond and/or a urea bond.
摘要翻译：要解决的问题：提供一种既能抵消耐磨性又具有耐磨性的调色剂。解决方案：无色透明调色剂包括具有氨基甲酸酯键和/或脲键的结晶树脂。

10. 发明专利

JP2013195787A Electrophotographic toner, developer, image forming apparatus, and process cartridge 有权
标题翻译：电子打印机，开发商，图像形成装置和处理盒
公开(公告)号：JP2013195787A
公开(公告)日：2013-09-30
申请号：JP2012063847
申请日：2012-03-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMADA MASAHIDE , NAKAYAMA SHINYA , YAMAMOTO JUNJI , SANTO HIDEYUKI , SAKASHITA SHINGO , NAKAJIMA YUKIKO , AMEMORI SUZUKA , SABE AKIYOSHI
IPC分类号： G03G9/08 , G03G9/087
CPC分类号： G03G9/08764 , G03G9/0804 , G03G9/08791 , G03G9/08795 , G03G9/08797 , G03G9/09708 , G03G9/09716
摘要： PROBLEM TO BE SOLVED: To provide electrophotographic toner that uses a crystalline resin containing 50 mass% or more of a binder resin as a substantial principal component; resolves problems specific to toner using a crystalline resin such as insufficient stress resistance, image conveyance scars occurring during recrystallization immediately after heat fixation, and insufficient hardness of an output image, without causing an adverse effect on low-temperature fixability; and achieves both low-temperature fixability and heat-resistance storability at a high level.SOLUTION: An electrophotographic toner includes at least a binder resin, colorant, and an organic modified lamellar inorganic mineral. The binder resin contains 50 mass% or more of a crystalline resin relative to the binder resin; and the crystalline resin contains a resin having a sulfonate group.
摘要翻译：要解决的问题：提供使用含有50质量％以上的粘合剂树脂的结晶性树脂作为主要成分的电子照相调色剂; 解决了使用结晶性树脂特异性的问题，例如耐应力不足，立即热固定后再结晶过程中产生的图像传送疤痕，输出图像的硬度不足，而不会对低温定影性产生不利影响; 并且实现了高水平的低温定影性和耐热性储存性。解决方案：电子照相调色剂至少包括粘合剂树脂，着色剂和有机改性层状无机矿物。粘合剂树脂相对于粘合剂树脂含有50质量％以上的结晶性树脂; 结晶性树脂含有具有磺酸盐基的树脂。

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