专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2014119305A Adhesion measuring device and adhesion measuring method 有权
标题翻译：粘合测量装置和粘合测量方法
公开(公告)号：JP2014119305A
公开(公告)日：2014-06-30
申请号：JP2012273328
申请日：2012-12-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAGUCHI DAICHI
IPC分类号： G01N19/04
摘要： PROBLEM TO BE SOLVED: To provide an adhesion measuring device and an adhesion measuring method for measuring adhesion of a fine particle with sufficient accuracy.SOLUTION: An adhesion measuring device for measuring adhesion of a fine particle 81 includes a holding member 80 which can be opened and closed and which catches a fine particle on a sample 82, a tabular member 83 cantilever-supported on a supporting member 84, and calculating means which determines adhesion of the fine particles from information on a warping amount of the tabular member at the time of making the tabular member and the fine particle separate from each other after making them contact.
摘要翻译：要解决的问题：提供一种粘合测量装置和用于精确测量细颗粒的附着力的粘附测量方法。解决方案：用于测量细颗粒81的粘合力的粘合测量装置包括可以打开的保持构件80 并且封闭并且捕获样品82上的细颗粒，悬臂支撑在支撑构件84上的平板状构件83，以及计算装置，其确定细颗粒从关于平板状构件的翘曲量的信息的粘附性使片状构件和细颗粒在接触之后彼此分离。

2. 发明专利

JP2012155008A Developing device, image forming device and developing method 审中-公开
标题翻译：开发设备，图像形成装置和开发方法
公开(公告)号：JP2012155008A
公开(公告)日：2012-08-16
申请号：JP2011012001
申请日：2011-01-24
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KAWAKAMI AKIHIRO , ASAMI AKIRA , AOKI KATSUHIRO , YAMAGUCHI DAICHI
IPC分类号： G03G15/08 , G03G15/09
摘要： PROBLEM TO BE SOLVED: To increase the uniformity of the density of a developer layer immediately before a developing area in a developing device of a two-component development system.SOLUTION: A developing device has magnetic force generating means inside a developing sleeve 51Y and performs development by carrying a developer to a developing area of a photoreceptor while carrying the developer on the surface of the developing sleeve 51Y by the magnetic force generating means. The developing device comprises a first developer regulation member 52Y disposed closer to the developing sleeve 51Y and a second developer regulation member 56Y disposed closer to the developing sleeve 51Y immediately before a developing pole P2 at the downstream side in the developer conveying direction (R4 direction) from the first developer regulation member 52Y. The gap between the first developer regulation member 56Y and the developing sleeve 51Y is formed to be narrower from the upstream side to the downstream side in the conveying direction of the developer (d2>d1).
摘要翻译：要解决的问题：为了提高紧密在双组分显影系统的显影装置中的显影区域之前的显影剂层的密度的均匀性。解决方案：显影装置在显影套筒51Y内具有磁力产生装置，并且通过将显影剂携带在感光体的显影区域上并通过磁力产生装置将显影剂携带在显影套筒51Y的表面上来进行显影。显影装置包括靠近显影套筒51Y设置的第一显影剂调节构件52Y和在显影剂输送方向（R4方向）下游侧的显影极P2之前更靠近显影套筒51Y设置的第二显影剂调节构件56Y，从第一显影剂调节构件52Y。第一显影剂调节构件56Y和显影套筒51Y之间的间隙形成为在显影剂的输送方向上的上游侧至下游侧较窄（d2> d1）。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2011164526A Developing device, image forming apparatus and developing method 审中-公开
标题翻译：开发设备，图像形成装置和开发方法
公开(公告)号：JP2011164526A
公开(公告)日：2011-08-25
申请号：JP2010030217
申请日：2010-02-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AOKI KATSUHIRO , KAI SO , YAMAGUCHI DAICHI , KUROSU HISAO , USAMI MOTOHIRO
IPC分类号： G03G9/113 , G03G15/08 , G03G15/09
摘要： PROBLEM TO BE SOLVED: To decrease roughness of a halftone solid image than in conventional types, in a configuration using a developer containing two kinds of magnetic particles, consisting of magnetic particles Cs having a small particle diameter and magnetic particles Cb having a large particle diameter. SOLUTION: A developer containing magnetic particles Cs having a small particle diameter and magnetic particles Cb having a large particle diameter is carried on the surface of a developing sleeve 12 and is conveyed with the rotation of the developing sleeve 12, to a developing region where a photoreceptor 4 and the developing sleeve 12 facing each other. Toner particles electrostatically adhered to the surfaces of the magnetic particles are stuck to an electrostatic latent image on the photoreceptor 4 to develop the electrostatic latent image. A developing device houses magnetic particles having lower toner carrying ability as the magnetic particles Cb having a large particle size, than that of the magnetic particles Cs having a small particle size. As a result, by having toner adhesion from the magnetic particles Cb possess a large particle diameter to an electrostatic latent image suppressed, a rough state in a halftone solid image can be suppressed. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题为了减少半色调固体图像的粗糙度，在使用包含两种磁性颗粒的显影剂的构造中，由具有小粒径的磁性颗粒Cs和具有小颗粒的磁性颗粒Cb构成的显影剂粒径大。解决方案：包含具有小粒径的磁性颗粒Cs和具有大粒径的磁性颗粒Cb的显影剂被承载在显影套筒12的表面上并随着显影套筒12的旋转被传送到显影剂感光体4和显影套筒12相对的区域。静电粘附到磁性颗粒表面的调色剂颗粒粘附在感光体4上的静电潜像上，以显影静电潜像。与具有较小粒径的磁性粒子Cs相比，显影装置容纳具有较低调色剂承载能力的磁性颗粒作为具有大粒径的磁性颗粒Cb。结果，通过使磁性颗粒Cb的调色剂粘附具有大的粒径直到抑制静电潜像，可以抑制半色调固体图像中的粗糙状态。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2011118193A Developing device, developing method, image forming apparatus and image forming method 有权
标题翻译：开发设备，开发方法，图像形成装置和图像形成方法
公开(公告)号：JP2011118193A
公开(公告)日：2011-06-16
申请号：JP2009276126
申请日：2009-12-04
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AOKI KATSUHIRO , KAI SO , ASAMI AKIRA , KUROSU HISAO , USAMI MOTOHIRO , YAMAGUCHI DAICHI , KAWAKAMI AKIHIRO
IPC分类号： G03G15/08 , G03G9/10 , G03G15/09
摘要： PROBLEM TO BE SOLVED: To provide a developing device capable of increasing development efficiency by replacing magnetic particles which have a developed toner with magnetic particles having a toner not developed and having a high toner coverage in a developing region. SOLUTION: A developing device 4 develops an image by carrying a two-component developer on a developer carrier 402, bringing the developer carrier close to an image carrier 1 having a latent image formed thereon in a developing region, and applying a developing bias to the developer carrier so as to deposit the developer onto the image carrier to develop to obtain a developed image. The developer carrier comprises a rotating nonmagnetic cylindrical member, having a plurality of magnets 407 disposed and fixed inside, and includes a means for dynamically disturbing a developer layer on the developer carrier in the developing region (for example, a magnetic field on the developer carrier is changed by a magnetic force-shielding member, or a linear velocity of the developer carrier is intermittently changed), thereby promoting disturbance of the developer to improve the developing ability and increasing the developing efficiency. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：提供一种能够通过用显影调色剂替换具有未显影调色剂和具有高调色剂覆盖度的调色剂的磁性颗粒的磁性颗粒来提高显影效率的显影装置。解决方案：显影装置4通过在显影剂载体402上携带双组分显影剂来显影图像，使显影剂载体靠近其中形成有潜像的图像载体1在显影区域中，并施加显影剂偏压到显影剂载体上，以将显影剂沉积到图像载体上以显影以获得显影图像。显影剂载体包括旋转的非磁性圆柱形构件，其具有设置和固定在内部的多个磁体407，并且包括用于动态地扰乱显影区域上的显影剂载体上的显影剂层的装置（例如，显影剂载体上的磁场被磁力屏蔽部件改变，或者显影剂载体的线速度间歇地变化），从而促进显影剂的干扰，以提高显影能力并提高显影效率。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2009069778A Developing device and image forming apparatus 审中-公开
标题翻译：开发设备和图像形成装置
公开(公告)号：JP2009069778A
公开(公告)日：2009-04-02
申请号：JP2007240946
申请日：2007-09-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMASHITA YASUYUKI , YAMAGUCHI DAICHI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To suppress the generation of large frictional heat and to suppress the retention of a developer near a layer thickness regulating member by preventing large pressure from being applied to the developer near the layer thickness regulating member to reduce friction between the developers and between the developer and a screw. SOLUTION: The layer thickness regulating member 35 includes a developer return path 36 for returning an excess developer produced by the regulation of the layer thickness regulating member, onto a developer carrier. The developer return path is secured by having a return mechanism for returning the excess developer from one end side of the developer carrier to the other end side and from the other end side to the one end side. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了抑制大的摩擦热的产生并且通过防止大的压力被施加到层厚调节构件附近的显影剂来减小在层厚限制构件附近的显影剂的保持，以减少开发人员和开发人员和螺丝之间。解决方案：层厚度调节构件35包括显影剂返回路径36，用于将由层厚度调节构件的调节产生的过量显影剂返回到显影剂载体上。显影剂返回路径通过具有用于使多余的显影剂从显影剂载体的一端侧到另一端侧以及从另一端侧到一端侧的返回机构来固定。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2009069285A Developing device and image forming apparatus 审中-公开
标题翻译：开发设备和图像形成装置
公开(公告)号：JP2009069285A
公开(公告)日：2009-04-02
申请号：JP2007235550
申请日：2007-09-11
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAGUCHI DAICHI , YAMASHITA YASUYUKI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To suppress developer deterioration caused by friction near a layer thickness regulating member and to reduce density unevenness of developer in the lengthwise direction of a developer carrier. SOLUTION: The developing device includes: a stirring-and-conveying section that stirs and conveys developer; a developer carrier disposed close to or in contact with an image carrier and supported so that its peripheral face is rotatable; and a layer thickness regulating member that regulates the layer thickness of developer on the developer carrier. This developing device has a developer circulation path along which extra developer as a result of the regulation of the layer thickness regulating member is returned to a stirring-and-conveying area. At a certain point in the path, a toner concentration averaging mechanism for developer is disposed. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：抑制由层厚限制构件附近的摩擦引起的显影剂劣化并且降低显影剂载体的长度方向上的显影剂的浓度不均匀性。解决方案：显影装置包括：搅拌和输送显影剂的搅拌输送部分; 显影剂载体，其设置在图像载体附近或与图像载体接触并被支撑以使得其外周面可旋转; 以及调节显影剂载体上的显影剂的层厚度的层厚调节构件。该显影装置具有显影剂循环路径，通过调节层厚度调节构件，将额外的显影剂返回到搅拌输送区域。在路径中的某一点处，设置用于显影剂的调色剂浓度平均机构。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2007079148A Developing device/image forming apparatus 审中-公开
标题翻译：开发设备/图像形成装置
公开(公告)号：JP2007079148A
公开(公告)日：2007-03-29
申请号：JP2005267120
申请日：2005-09-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAGUCHI DAICHI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device capable forming the uniform thin layer of toner on a toner carrier, while stably performing the triboelectrification of the toner in the midst of forming the thin layer, and stably maintaining such a function over a long term. SOLUTION: In the developing device where a regulating member is brought into press-contact with the surface of the toner carrier for conveying the toner to an image carrier, the amount of the toner on the surface of the toner carrier is regulated by the regulating member, and the toner on the surface of the toner carrier is triboelectrified, a layer forming member 21 functioning as the regulating member is integrally equipped with a rigid body layer A, and a soft body layer B functioning as a surface layer positioned on the side of the developing roller 20 functioning as the toner carrier, and the soft body layer B can be deformed so that its contact area with the toner may be increased. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在调色剂载体上形成均匀的调色剂薄层的显影装置，同时在形成薄层的同时稳定地进行调色剂的摩擦带电，并且稳定地保持这样的功能长期的解决方案：在显影装置中，调节部件与调色剂载体的表面压接，将调色剂输送到图像载体上，调色剂载体表面上的调色剂量由调节构件和调色剂载体的表面上的调色剂摩擦带电，用作调节构件的层形成构件21一体地装备有刚体层A和用作表面层的软体层B，其位于用作调色剂载体的显影辊20的侧面和软体层B可以变形，从而可以增加其与调色剂的接触面积。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2006301008A Electrophotographic toner, method for manufacturing the same, development method using the toner, and image forming apparatus 审中-公开
标题翻译：电摄影调色剂，其制造方法，使用调色剂的发展方法和图像形成装置
公开(公告)号：JP2006301008A
公开(公告)日：2006-11-02
申请号：JP2005118385
申请日：2005-04-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAGUCHI DAICHI , AOKI KATSUHIRO , IKEGUCHI HIROSHI , MIYOSHI YASUO
IPC分类号： G03G9/08
摘要： PROBLEM TO BE SOLVED: To suppress problems such as degradation in image quality due to deposition of a fatty acid metal salt separating from a toner base surface onto a toner carrier surface when a fatty acid metal salt is deposited on the surface of a toner base in order to improve fluidity of the toner. SOLUTION: The electrophotographic toner comprises a toner base and an external additive, wherein inorganic oxide particles and a fatty acid metal salt are used as the external additive, and a film of the fatty acid metal salt is formed on the surface of the toner base to a film thickness corresponding to two molecules of the fatty acid metal salt. Thereby, a deposition amount of the fatty acid metal salt can be decreased to the minimum within a range to obtain the effect of improving the fluidity of the toner, and the amount of the fatty acid metal salt separating from the toner base is suppressed to the minimum to eliminate occurrence of the above problems. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：待解决的问题：为了抑制当将脂肪酸金属盐沉积在调色剂载体表面上时由于将从调色剂基底表面分离的脂肪酸金属盐沉积在图像表面上而导致的图像质量下降的问题调色剂基底，以改善调色剂的流动性。电解调色剂：电子照相调色剂包含调色剂基底和外部添加剂，其中使用无机氧化物颗粒和脂肪酸金属盐作为外部添加剂，并且在该表面上形成脂肪酸金属盐的膜调色剂底物对应于两分子脂肪酸金属盐的膜厚度。因此，能够使脂肪酸金属盐的成膜量在一定范围内降低到最小限度，从而获得提高调色剂的流动性的效果，并且将与调色剂基质分离的脂肪酸金属盐的量抑制在最小化以消除上述问题的发生。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2006259661A Lubricant supplying unit and image forming apparatus 审中-公开
标题翻译：润滑剂供应单位和图像形成装置
公开(公告)号：JP2006259661A
公开(公告)日：2006-09-28
申请号：JP2005159781
申请日：2005-05-31
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUGIURA KENJI , TOKUMASU TAKAHIKO , YAMAGUCHI DAICHI , SESHIMO TAKUYA
IPC分类号： G03G21/10 , G03G5/08 , G03G9/08 , G03G15/16
CPC分类号： G03G21/0094
摘要： PROBLEM TO BE SOLVED: To provide a lubricant applying unit which exhibits the lubricity of the lubricant to the full at all times by stably supplying the lubricant onto a photoreceptor in contrast with the factor that the lubricant cannot exhibit the lubricity any more due to the chemical deterioration in a charging process.
SOLUTION: The solid lubricant 500 is applied to an image carrier 2 via a rotating fur brush 502. The fur brush 502 rotates by abutting on the solid lubricant 500 and chips off a portion of the solid lubricant 500. The chipped off solid lubricant 500 adheres to the fur brush 502, rotates and is applied to the image carrier 2. The lubricant applied to the image carrier 2 is leveled off by an elastic blade 503. By setting the coverage to ≥1.2E-7 g/cm
2 to ≤1.3E-6 g/cm
2 per unit area of the image carrier, the fault due to excess application is prevented from occurring and a lubrication effect can be obtained without bringing about destabilization of cleaning and destabilization of a developer.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种润滑剂施加单元，其通过将润滑剂稳定地供应到感光体上而始终显示润滑剂的润滑性，与润滑剂不能再呈现润滑性的因素相反对于充电过程中的化学变质。解决方案：固体润滑剂500通过旋转毛刷502施加到图像载体2上。毛刷502通过抵靠固体润滑剂500而旋转，并从一部分固体润滑剂500上切掉。润滑剂500粘附到毛刷502，旋转并施加到图像载体2.施加到图像载体2上的润滑剂被弹性刮板503平整。通过将覆盖度设定为≥1.2E-7g / cm 2， SP> 2 至≤1.3E-6 g / cm 2 SP / 2> / SP> 2 ，则可防止由于过度使用造成的故障，无需润滑效果即可导致开发商的清洁和不稳定的不稳定。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2006221077A Toner, image forming apparatus and process cartridge 审中-公开
标题翻译：墨粉，图像形成装置和工艺盒
公开(公告)号：JP2006221077A
公开(公告)日：2006-08-24
申请号：JP2005036337
申请日：2005-02-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KOYAMA HAJIME , AOKI KATSUHIRO , IKEGUCHI HIROSHI , MIYOSHI YASUO , YAMAGUCHI DAICHI
IPC分类号： G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide a toner which ensures little toner deterioration and no lowering of toner charge start ability, excels in transfer performance and cleaning performance, and can extend the lifetime of an apparatus, and to provide an image forming apparatus. SOLUTION: Inorganic oxide particles 65 having a hydrophobicity of ≥30 and a solid lubricant 66 are added in combination as external additives to a base toner 64 comprising a resin 60, a colorant 61 and a polarity control agent 62. The relation between a weight addition ratio α% of the inorganic oxide particles 65 to the base toner 64 and a weight addition ratio β% of the solid lubricant 66 to the base toner 64 satisfies 0.5×α≥β≥0.01×α. As a result, the non-electrostatic deposition amount of the toner components is reduced and the solid lubricant is not released from the base toner and the inorganic oxide particles. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供确保少量调色剂劣化并且不降低调色剂充电开始能力的调色剂，具有优异的转印性能和清洁性能，并且可以延长设备的寿命，并且提供一种成像设备。解决方案：具有疏水性≥30的无机氧化物颗粒65和固体润滑剂66作为外部添加剂组合加入到包含树脂60，着色剂61和极性控制剂62的基础调色剂64中。无机氧化物颗粒65与基础调色剂64的重量添加比α％和固体润滑剂66与基材调色剂64的重量添加比例β％满足0.5×α≥β≥0.01×α。结果，调色剂组分的非静电沉积量减少，固体润滑剂不会从基体调色剂和无机氧化物颗粒中释放出来。版权所有（C）2006，JPO＆NCIPI

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式