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1. 发明专利

JP2012058286A Developing device, process cartridge and image forming apparatus 有权
标题翻译：开发装置，过程盒和图像形成装置
公开(公告)号：JP2012058286A
公开(公告)日：2012-03-22
申请号：JP2010198348
申请日：2010-09-03
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： OZEKI TAKAMASA , MASUDA KATSUMI , TAGUCHI NOBUYUKI , SATO HIROTAKA , HAYASHI TOSHIKI , HIZUKA KYOTA , KOJIMA TOSHIO , OSAWA MASAYUKI , KAMIYA NORIYUKI , TERASAKA TAKUMI
IPC分类号： G03G15/08 , G03G15/09
摘要： PROBLEM TO BE SOLVED: To provide a developing device which can contribute to improving image quality by resolving the problem of rotation with a developer at the end, while taking an advantage of a hollow, in such a system that a large number of hollows are formed on the surface of a developing sleeve.SOLUTION: The angles of the hollows 139 (shown by hatching) only at the end of a hollow forming part on the developing sleeve 132 at the downstream in the conveyance direction of the developer are changed to a direction opposite to that of a group of hollows 139 inward from the end (central side in the axial direction of the sleeve). Thus, the conveyance direction of the developer on the developing sleeve at the end can be reversed so that the amount of the developer supplied to the end can be reduced and the rotation with the developer at the end hardly occurs.
摘要翻译：要解决的问题：提供一种显影装置，其可以通过在利用中空的同时解决最终显影剂的旋转问题而有助于提高图像质量，在这样的系统中，大量的在显影套筒的表面上形成空洞。解决方案：仅在显影套筒132上的中空形成部分的端部处，在显影剂的输送方向下游的中空部分139（由阴影所示）的角度改变为与显影剂输送方向相反的方向一组中空部139从端部（套筒的轴向的中心侧）向内侧。因此，显影套筒末端的显影剂的传送方向可以颠倒，从而可以减少向端部供应的显影剂的量，并且几乎不发生与显影剂的旋转。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2014074833A Developer carrier, developing device, process cartridge, and image forming apparatus 审中-公开
标题翻译：开发商运营商，开发设备，流程盒和图像形成设备
公开(公告)号：JP2014074833A
公开(公告)日：2014-04-24
申请号：JP2012222949
申请日：2012-10-05
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TERASAKA TAKUMI , HIRAKAWA TOSHIKAZU , WATANABE MASAKI , TERAJIMA MIEKO , ABE HIROYA , SHIMIZU YASUTAKA , MORO YUKI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developer carrier capable of suppressing, when used in a developing device, the occurrence of failure caused by a regulating member intermittently coming into contact with convex parts, a developing device including the developer carrier, a process cartridge, and an image forming apparatus.SOLUTION: A developing roller 42 is a developer carrier that has concave parts 42b and convex parts 42a formed on the surface as a concave-convex shape, and carries toner that is developer on the surface to make surface movement so as to convey the developer. The plurality of concave parts 42b forming the concave-convex shape are formed independently, and the convex parts 42a forming the concave-convex shape are formed continuously so as to surround the single concave part 42b.
摘要翻译：要解决的问题：提供一种显影剂载体，其能够在显影装置中使用间歇地与凸部接触时由限制构件引起的故障的发生，包括显影剂载体，处理盒，和图像形成装置。显影辊42是显影剂载体，其具有在表面上形成为凹凸形状的凹部42b和凸部42a，并且携带作为表面的显影剂的调色剂以使表面运动如此传达开发商。形成凹凸形状的多个凹部42b独立地形成，形成凹凸形状的凸部42a以包围单个凹部42b的方式连续地形成。

3. 发明专利

JP2014056052A Developer carrier, developing device, process cartridge, and image forming apparatus 审中-公开
标题翻译：开发商运营商，开发设备，流程盒和图像形成设备
公开(公告)号：JP2014056052A
公开(公告)日：2014-03-27
申请号：JP2012199814
申请日：2012-09-11
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TERAJIMA MIEKO , WATANABE MASAKI , ABE HIROYA , TERASAKA TAKUMI , SHIMIZU YASUTAKA , MORO YUKI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developer carrier capable of achieving improvement of chargeability of developer and excellent durability when used in a developing device, a developing device including the developer carrier, a process cartridge, and an image forming apparatus.SOLUTION: A developing roller 42 that is a developer carrier includes concave parts 42b and convex parts 42a as a concave-convex shape on the surface, and carries and moves a toner that is a developer on the surface to convey the developer, and has concave-part inner grooves 430 that are concave-part inner groove parts each formed in each of the concave parts 42b that forms the concave-convex shape.
摘要翻译：要解决的问题：提供一种显影剂载体，其能够在显影装置中使用时实现显影剂的带电性和优异的耐久性，显影装置包括显影剂载体，处理盒和成像装置。解决方案：显影作为显影剂载体的辊42包括在表面上作为凹凸形状的凹部42b和凸部42a，并且携带和移动表面上的显影剂的调色剂以输送显影剂，并且具有凹部内凹槽 430是形成在形成凹凸形状的每个凹部42b中的凹部内槽部。

4. 发明专利

JP2012168225A Developing sleeve, developing roller, developing device, process cartridge, image forming apparatus, and method of manufacturing developing sleeve 审中-公开
标题翻译：开发套筒，开发滚子，开发装置，工艺盒，图像形成装置和制造开发套筒的方法
公开(公告)号：JP2012168225A
公开(公告)日：2012-09-06
申请号：JP2011026851
申请日：2011-02-10
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KAMIYA NORIYUKI , KOJIMA TOSHIO , HIZUKA KYOTA , OSAWA MASAYUKI , TERASAKA TAKUMI , ABE HIROYA
IPC分类号： G03G15/08 , G03G15/09
摘要： PROBLEM TO BE SOLVED: To provide a developing sleeve, a developing roller, and a developing device that prevent density unevenness of an image without reducing the amount of conveyance of developer; a process cartridge and an image forming apparatus that include the developing device; and a method of manufacturing the developing sleeve.SOLUTION: A developing sleeve 132 is provided with a plurality of dents 139 each having an elliptical shape in a plan view on an outer surface thereof in a regular manner at intervals so as not to be overlapped with one another. The developing sleeve 132 is further provided with a low-friction film 136 on the outer surface thereof only at portions between the plurality of dents 139.
摘要翻译：要解决的问题：提供一种防止图像的浓度不均匀性而不减少显影剂的传送量的显影套筒，显影辊和显影装置; 处理盒和包括显影装置的图像形成装置; 以及制造显影套筒的方法。解决方案：显影套筒132设置有多个凹口139，每个凹部139在其外表面上以规则的方式在平面图中以间隔彼此重叠的方式形成椭圆形。显影套筒132还在其外表面上仅在多个凹部139之间的部分处设置有低摩擦膜136.版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2011237473A Development roller, development device, process cartridge and image forming device 审中-公开
标题翻译：开发滚子，开发设备，过程盒和图像形成装置
公开(公告)号：JP2011237473A
公开(公告)日：2011-11-24
申请号：JP2010106150
申请日：2010-05-06
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： OSAWA MASAYUKI , KOJIMA TOSHIO , HIZUKA KYOTA , TAKANO YOSHIYUKI , KAMIYA NORIYUKI , INNAMI TAKASHI , TERASAKA TAKUMI
IPC分类号： G03G15/08
CPC分类号： G03G15/0818 , G03G2215/0634
摘要： PROBLEM TO BE SOLVED: To provide a development roller and a development device capable of suppressing reduction in the conveyance amount of a developer due to secular change and preventing occurrence of image unevenness, and also to provide a process cartridge equipped with the development device, and an image forming device.SOLUTION: On the external surface of a development sleeve 132, numerous recesses 139 formed in an ellipse shape in a plane view are regularly provided at intervals mutually along a longitudinal direction of the development sleeve 132. The longitudinal direction of the recesses 139 intersects with the longitudinal direction of the development sleeve 132, and the recesses 139 are provided so that a downstream side is deepened as compared with an upstream side in a rotation direction of the development sleeve 132.
摘要翻译：解决的问题：提供一种显影辊和显影装置，其能够抑制由于长期变化导致的显影剂的输送量的减少，并且防止图像不均匀的发生，并且还提供一种装配有显影的处理盒装置和图像形成装置。解决方案：在显影套筒132的外表面上，以平面图形式形成为椭圆形的多个凹部139沿着显影套筒132的纵向方向相互间隔地规则地设置。凹部139的纵向方向与显影套筒132的纵向方向相交，并且凹部139设置成与显影套筒132的旋转方向上的上游侧相比下游侧加深。（C）2012年， JPO＆INPIT

6. 发明专利

JP2012242543A Developing roller, developing device, process cartridge and image forming apparatus 有权
标题翻译：开发辊，开发装置，工艺盒和图像形成装置
公开(公告)号：JP2012242543A
公开(公告)日：2012-12-10
申请号：JP2011111411
申请日：2011-05-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TERASAKA TAKUMI , KOJIMA TOSHIO , HIZUKA KYOTA , KAMIYA NORIYUKI , OSAWA MASAYUKI , ABE HIROYA
IPC分类号： G03G15/08
CPC分类号： G03G15/0921 , G03G15/0818
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive developing roller capable of suppressing a reduction in the conveying amount of developer due to change with lapse of time and preventing image density unevenness caused by the vibration during the rotation of a developing sleeve, and to provide a developing device having the developing roller, a process cartridge having the developing device and an image forming apparatus having the developing device.SOLUTION: A developing roller 115 is configured so that a developing roller 132 is formed in a cylindrical shape, a cylindrical axis center P and a rotation axis Q of the developing sleeve 132 are not matched, and a large number of recesses 139 in a circular or elliptical shape in plan view are regularly arranged to be spaced apart from one another so as not to overlap one another on the outer surface of the developing sleeve 132. And, for the large number of recesses 139, the depth H of the recess 139 provided at a portion close to the rotation axis Q on the outer surface of the developing sleeve 132 is arranged to be deeper than the depth H of the recess 139 provided at a portion far from the rotation axis Q on the outer surface.
摘要翻译：要解决的问题：提供一种廉价的显影辊，其能够抑制由于随时间的变化而导致的显影剂的输送量的减少，并且防止由显影套筒的旋转期间的振动引起的图像浓度不均匀，以及提供具有显影辊的显影装置，具有显影装置的处理盒和具有显影装置的图像形成装置。解决方案：显影辊115被构造成使得显影辊132形成为圆柱形，圆筒轴中心P和显影套筒132的旋转轴线Q不匹配，并且多个凹部139 平面图中的圆形或椭圆形形状规则地布置成彼此间隔开，以便在显影套筒132的外表面上彼此不重叠。并且，对于大量的凹部139，深度H 设置在显影套筒132的外表面上靠近旋转轴线Q的部分处的凹部139布置成比设置在远离外表面上的旋转轴线Q的部分的凹部139的深度H更深。版权所有（C）2013，JPO＆INPIT

7. 发明专利

JP2012058281A Developing device, process cartridge and image forming apparatus 有权
标题翻译：开发装置，过程盒和图像形成装置
公开(公告)号：JP2012058281A
公开(公告)日：2012-03-22
申请号：JP2010198341
申请日：2010-09-03
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAGUCHI NOBUYUKI , MASUDA KATSUMI , OZEKI TAKAMASA , SATO HIROTAKA , HAYASHI TOSHIKI , HIZUKA KYOTA , KOJIMA TOSHIO , OSAWA MASAYUKI , KAMIYA NORIYUKI , TERASAKA TAKUMI
IPC分类号： G03G15/08 , G03G15/09
摘要： PROBLEM TO BE SOLVED: To provide a developing device capable of suppressing image density unevenness in the longitudinal direction of an image area with high accuracy by reducing the stress of a developer, in such a configuration that a large number of hollows are formed on the surface of a developing sleeve.SOLUTION: The long axis direction of a hollow 139 provided on the surface of a developing sleeve 132 has an angle α in the longitudinal direction of the developing sleeve. The developer receives force in the direction of an arrow F from an end surface 139a of the hollow 139 on the upstream side in the rotational direction of a developing roller, to be conveyed on the surface of the sleeve, by the rotation of the developing sleeve 132. A component Fb of the arrow F in the longitudinal direction of the sleeve has the same direction as a developer conveying direction and the developer is conveyed in the longitudinal direction of the sleeve at the same time when the developer is conveyed to a development area.
摘要翻译：解决的问题：提供一种能够通过降低显影剂的应力而以高精度抑制图像区域的纵向方向的图像浓度不均匀性的显影装置，形成为形成大量中空部的结构在显影套筒的表面上。解决方案：设置在显影套筒132的表面上的中空部件139的长轴方向在显影套筒的长度方向上具有角度α。显影剂从显影辊的旋转方向的上游侧的中空部件139的端面139a沿着箭头F的方向受力，通过显影套筒的旋转而被传送到套筒的表面上在显影剂被输送到显影区域132的同时，箭头F在套筒的纵向上的分量Fb具有与显影剂输送方向相同的方向，并且显影剂在套筒的纵向方向上被输送。版权所有（C）2012，JPO＆INPIT

8. 发明专利

JP2011232430A Magnet roller, developer carrier, development device, process cartridge, and image forming apparatus 有权
标题翻译：磁铁滚筒，开发者承运人，开发设备，工艺盒和图像形成装置
公开(公告)号：JP2011232430A
公开(公告)日：2011-11-17
申请号：JP2010100723
申请日：2010-04-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： INNAMI TAKASHI , HIZUKA KYOTA , TAKANO YOSHIYUKI , KAMIYA NORIYUKI , OSAWA MASAYUKI , TERASAKA TAKUMI
IPC分类号： G03G15/09 , G03G15/08
CPC分类号： G03G15/0921
摘要： PROBLEM TO BE SOLVED: To provide a magnet roller which prevents curvature in molding and distortion due to passage of time, and suppresses damage to and falling of support parts, while keeping high magnetic force at a developing main pole.SOLUTION: A magnet roller 133 comprises: a columnar body part 31; support parts 33 and 34 which are provided on the same axis as the body part 31 in contact with both ends of the body part 31 and which have a columnar shape having a smaller diameter than the body part 31; and a rare-earth magnet block 141 positioned at a developing main pole part provided on a surface of the body part 31. In the magnet roller 133, at least one or more flat surfaces 32a extending outside of the outer diameter of the support parts 33 and 34, in the direction P of the axis of the body part 31, are provided to the body part 31. The rare-earth magnet block 141 is positioned on one of the flat surfaces 32a as the developing main pole part.
摘要翻译：要解决的问题：提供一种防止成型中的曲率和由于时间流逝而产生的变形的磁性辊，并且在显影主极保持高的磁力的同时抑制支撑部的损坏和落下。磁性辊133包括：柱状体部31; 支撑部分33和34，其设置在与主体部分31相同的轴线上，与主体部分31的两端接触并且具有比主体部分31小的直径的柱状; 以及位于设置在主体部31的表面上的显影用主极部的稀土类磁体块141.在磁性辊133中，至少一个以上的平坦面32a延伸到支撑部33的外径的外侧在主体部31的轴线方向P上设置有34个和34个。稀土磁块141位于作为显影主极部的一个平面32a上。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2015014809A 現像装置、プロセスカートリッジ及び画像形成装置审中-公开
标题翻译：开发装置，过程盒和图像形成装置
公开(公告)号：JP2015014809A
公开(公告)日：2015-01-22
申请号：JP2014213850
申请日：2014-10-20
申请人：株式会社リコー , Ricoh Co Ltd
发明人： SATO YUKI , MASUDA KATSUMI , OZEKI TAKAMASA , TAGUCHI NOBUYUKI , HAYASHI TOSHIKI , HIZUKA KYOTA , KOJIMA TOSHIO , OSAWA MASAYUKI , KAMIYA NORIYUKI , TERASAKA TAKUMI
IPC分类号： G03G15/08
摘要：【課題】現像スリーブの表面に凹みを多数形成する方式において、周方向の濃度ムラを高精度に解消でき画像品質の低下を抑制できる現像装置を提供する。【解決手段】現像スリーブ132の表面には、凹み139が多数形成されている。現像スリーブ132の周方向におけるドクタブレード116と凹み139との寸法関係を、周方向におけるドクタブレード116の幅(ドクタ幅)をW、周方向における凹み139の配列ピッチをPとしたとき、W≧Pの関係を満足するように設定している。これにより、現像剤搬送力の大きい凹み139がドクタブレード116と現像スリーブ132間に必ず存在することとなり、安定して均一に現像剤を汲み上げることができ、周期的な濃度ムラの無い良好な画像を得ることができる。【選択図】図9
摘要翻译：要解决的问题：为了提供一种能够以高精度消除圆周方向上的浓度不均匀性来抑制图像质量劣化的显影装置，在显影套筒的表面上形成有大量中空部的系统中。解决方案：在显影套筒132的表面上形成大量的凹部139.当刮刀116在圆周方向上的宽度（刮刀宽度）被定义为W时，并且中空部件139在圆周方向上的排列间距方向定义为P，将显影套筒132的圆周方向上的刮刀116和中空部139之间的尺寸关系设定为满足W≥P的关系。因此，在刮刀116和显影套筒132之间可靠地存在着具有大的显影剂输送力的凹部139，从而可以稳定均匀地舀取显影剂，并且可以获得没有周期性密度不均匀性的优异的图像。

10. 发明专利

JP2014077885A Developer carrier, developing device, process cartridge, and image forming apparatus 审中-公开
标题翻译：开发商运营商，开发设备，流程盒和图像形成设备
公开(公告)号：JP2014077885A
公开(公告)日：2014-05-01
申请号：JP2012225450
申请日：2012-10-10
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MORO YUKI , WATANABE MASAKI , TERAJIMA MIEKO , ABE HIROYA , TERASAKA TAKUMI , SHIMIZU YASUTAKA
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developer carrier capable of improving durability while suppressing the occurrence of filming of developer when used in a developing device, a developing device including the developer carrier, a process cartridge, and an image forming apparatus.SOLUTION: A developing roller 42 that is a developer carrier includes concave parts 42b and convex parts 42a on the surface thereof forming a concave-convex shape, and carries a toner that is a developer on the surface to make surface movement to convey the developer. The convex parts 42a forming the concave-convex shape are in an elliptical frustum shape, and the longitudinal direction of the elliptical frustum shape is a direction along the direction of the surface movement.
摘要翻译：要解决的问题：提供一种能够提高耐久性的显影剂载体，同时抑制显影装置中使用时显影剂的成膜的发生，显影装置包括显影剂载体，处理盒和成像装置。解决方案：A 作为显影剂载体的显影辊42包括形成凹凸形状的凹部42b和凸部42a，并且在表面上承载作为显影剂的调色剂以使表面移动以输送显影剂。形成凹凸形状的凸部42a为椭圆锥台状，椭圆锥台形状的长边方向为沿着表面移动方向的方向。

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