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51. 发明专利

JP2011145709A Developing device, process unit and image forming apparatus 有权
标题翻译：开发设备，处理单元和图像形成装置
公开(公告)号：JP2011145709A
公开(公告)日：2011-07-28
申请号：JP2011098037
申请日：2011-04-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHIDA KEIICHI , HATTORI YOSHIO , KAWAHARA SHINICHI , FUJISHIRO TAKATSUGU , TANAKA HIDEKI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus, restraining greasing and uneven development density due to stirring failure of a two-component developer while restraining uneven development density due to lenticulation of the surface of the two-component developer carried by a second carrying screw 15. SOLUTION: For the second carrying screw 15 for supplying the two-component developer to a development sleeve 13 among a plurality of carrying screws, a screw having two spiral blades constituting a two-spiral structure is used, and also for a first carrying screw 14 among them, a screw having one spiral blade forming one spiral structure is used. In this configuration, while the uneven development density due to the lenticulation of the surface of the two-component developer carried by the second carrying screw 15 is restrained, the two-component developer is actively stirred in the first carrying screw 14 to restrain greasing and uneven development density due to stirring failure of the two-component developer. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种图像形成装置，由于双组分显影剂的搅拌失效而抑制了润湿和不均匀的显影密度，同时抑制由于双组分显影剂的表面的光滑而引起的不均匀显影密度第二承载螺钉15.解决方案：对于用于将双组分显影剂供应到多个承载螺钉中的显影套筒13的第二承载螺钉15，使用具有构成双螺旋结构的两个螺旋叶片的螺钉，并且对于其中的第一承载螺钉14，使用具有形成一个螺旋结构的一个螺旋叶片的螺钉。在该结构中，由于抑制了由第二输送螺杆15承载的双组分显影剂的表面的微细化引起的不均匀显影密度，所以双组分显影剂在第一输送螺杆14中被主动地搅拌以抑制润滑，由于双组分显影剂的搅拌失效引起的不均匀显影密度。版权所有（C）2011，JPO＆INPIT

52. 发明专利

JP2011145362A Developing device, process cartridge and image forming apparatus 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：JP2011145362A
公开(公告)日：2011-07-28
申请号：JP2010004568
申请日：2010-01-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MASUDA KATSUMI , FUKUDA YOSHIYUKI , ASAMI AKIRA , HATTORI YOSHIO , YOSHIDA KEIICHI , TAKAHASHI YASUSHI , OZEKI TAKAMASA , TAGUCHI NOBUYUKI , SATO HIROTAKA , HAYASHI TOSHIKI
IPC分类号： G03G15/08 , G03G9/10
摘要： PROBLEM TO BE SOLVED: To provide a developing device, a process cartridge and an image forming apparatus, wherein a problem that an adhesive or a double-sided adhesive tape partially remains as a foreign substance is prevented in a relatively easily configuration, and such a problem that a developer preliminarily housed inside before delivery scatters to the outside of the developing device or contaminates a developer carrier or an image carrier during transportation or the like can be decreased. SOLUTION: A sheet member 13m covering the surface of a developer carrier 13a except for a counter position to an image carrier is detachably disposed as holding a developer GW between the sheet member and a developing case 13k or a developer regulating member 13c. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种显影装置，处理盒和图像形成装置，其中以相对容易的构造防止粘合剂或双面胶带部分残留作为异物的问题，并且可以减少在传送之前预先容纳在显影装置外部的显影剂在显影装置的外部散发或污染运输过程中的显影剂载体或图像载体等问题。解决方案：将显影剂载体13a的表面除了与图像载体相对的位置之外的片状构件13m可拆卸地设置为将显影剂GW保持在片状构件和显影盒13k或显影剂调节构件13c之间。版权所有（C）2011，JPO＆INPIT

53. 发明专利

JP2011090034A 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：JP2011090034A
公开(公告)日：2011-05-06
申请号：JP2009241240
申请日：2009-10-20
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HAYASHI TOSHIKI , MASUDA KATSUMI , OZEKI TAKAMASA , TAGUCHI NOBUYUKI , SATO HIROTAKA , TAKAHASHI YASUSHI , FUKUDA YOSHIYUKI , ASAMI AKIRA , HATTORI YOSHIO , YOSHIDA KEIICHI
IPC分类号： G03G15/08 , G03G9/08 , G03G9/10
摘要： PROBLEM TO BE SOLVED: To provide a developing device in which when two conveying members which convey a developer in a longitudinal direction and form a circulation path are placed opposite to a developer carrier and a developer regulating member is disposed below the developer carrier, a developer is well separated from the top of the developer carrier toward a second conveyance path, so that the problem that the developer after a developing step separated from the top of the developer carrier stagnates on a partition member and is carried again on the developer carrier is hardly caused; and to provide a process cartridge and an image forming apparatus.
SOLUTION: In a developer carrier 13a, one magnetic pole H5 is formed in a position opposite to a partition member 13d dividing a first conveyance path by a first conveying member 13b1 and a second conveyance path by a second conveying member 13b2. A magnetic body 13k extending in a direction receding from a position opposite to the developer carrier 13a is disposed at the lower surface of the partition member 13d.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种显影装置，其中当沿着纵向输送显影剂并形成循环路径的两个输送构件放置在与显影剂载体相对的位置并且显影剂调节构件设置在显影剂载体下方显影剂与显影剂载体的顶部朝向第二输送路径良好地分离，使得显影步骤与显影剂载体的顶部分离后的显影剂停留在分隔构件上并再次携带在显影剂上的问题载体很难造成; 并提供处理盒和图像形成装置。解决方案：在显影剂载体13a中，一个磁极H5形成在与由第一输送构件13b1分隔第一输送路径的分隔构件13d相对的位置和由第二输送构件13b2分隔的第二输送路径的位置。从与显影剂载体13a相反的位置退出的方向延伸的磁性体13k设置在分隔构件13d的下表面。版权所有（C）2011，JPO＆INPIT

54. 发明专利

JP2011081281A Developing device, process cartridge and image forming apparatus 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：JP2011081281A
公开(公告)日：2011-04-21
申请号：JP2009234805
申请日：2009-10-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ASAMI AKIRA , MASUDA KATSUMI , FUKUDA YOSHIYUKI , HATTORI YOSHIO , OZEKI TAKAMASA , YOSHIDA KEIICHI , TAKAHASHI YASUSHI , TAGUCHI NOBUYUKI , SATO HIROTAKA , HAYASHI TOSHIKI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device which hardly causes such an inconvenience that developer is satisfactorily released from a developing roller (developer carrier) toward a second conveying path and the developer released from the developer carrier after a developing step is carried again on the developer carrier in the second conveying path when two conveying members that form a circulation route through which the developer is conveyed in a longitudinal direction are arranged to face the developer carrier and when a developer regulating member is disposed below the developer carrier, and to provide a process cartridge and an image forming apparatus.
SOLUTION: One magnetic pole H4 of the developer carrier 13a is formed at a position opposed to a separation member 13d for separating a first conveying path by a first conveying member 13b1 from a second conveying path by a second conveying member 13b2. The separation member 13d is provided with a magnet 13k formed so that its polarity on a side opposed to the magnetic pole H4 may differ from the polarity of the magnetic pole H4 opposite to the developer carrier 13a.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种显影装置，其几乎不会使显影剂从显影辊（显影剂载体）朝向第二输送路径令人满意地释放并且在显影步骤之后从显影剂载体释放的显影剂是当形成沿纵向传送显影剂的循环路径的两个输送构件被布置成面对显影剂载体时，并且当显影剂调节构件设置在显影剂载体下方时，第二输送路径中的显影剂载体上再次承载，并提供处理盒和图像形成装置。解决方案：显影剂载体13a的一个磁极H4形成在与分离部件13d相对的位置处，用于通过第二输送部件13b2将第一输送部件13b1从第二输送路径分离出第一输送路径。分离构件13d设置有磁体13k，其形成为使得其与磁极H4相对的一侧的极性可以与与显影剂载体13a相对的磁极H4的极性不同。版权所有（C）2011，JPO＆INPIT

55. 发明专利

JP2011059209A Developing device, process cartridge, and image forming apparatus 有权
标题翻译：开发设备，过程盒和图像形成装置
公开(公告)号：JP2011059209A
公开(公告)日：2011-03-24
申请号：JP2009206536
申请日：2009-09-08
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： FUKUDA YOSHIYUKI , MASUDA KATSUMI , TAGUCHI NOBUYUKI , SATO HIROTAKA , TAKAHASHI YASUSHI , YOSHIDA KEIICHI , HATTORI YOSHIO , ASAMI AKIRA , OZEKI TAKAMASA , HAYASHI TOSHIKI
IPC分类号： G03G15/09 , G03G9/10 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device capable of preventing developer after a developing process in which the developer leaves a developer carrier in a second conveyance path from being carried on the developer carrier again, while preventing the rotational torque of the developer carrier from rising, when two conveyance members conveying the developer in the longitudinal direction and forming a circulation path are installed to oppose to the developer carrier and a developer regulation member is arranged below the developer carrier, and to provide a process cartridge and an image forming apparatus.
SOLUTION: The developing device includes a partition member 13d that partitions a first conveyance path formed by the first conveyance member 13b1 and a second conveyance path formed by the second conveyance member 13b2 from each other. The developing device also includes an opposing member 13k, facing a magnetic pole H4 on the upstream side among two magnetic poles H4, H6 forming a developer separating magnetic pole H5.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种显影装置，其能够在其中显影剂离开第二输送路径中的显影剂载体的显影处理再次承载在显影剂载体上之后防止显影剂，同时防止显影剂的旋转扭矩当两个传送构件在纵向方向上传送显影剂并形成循环路径时，显影剂载体不起来，安装成与显影剂载体相对，并且显影剂调节构件布置在显影剂载体下方，并且提供处理盒和图像成型装置。解决方案：显影装置包括分隔由第一输送构件13b1形成的第一输送路径和由第二输送构件13b2形成的第二输送路径的分隔构件13d。显影装置还包括相对构件13k，其面对形成显影剂分离磁极H5的两个磁极H4，H6中的上游侧的磁极H4。版权所有（C）2011，JPO＆INPIT

56. 发明专利

JP2011028216A 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：JP2011028216A
公开(公告)日：2011-02-10
申请号：JP2010055706
申请日：2010-03-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHIDA KEIICHI , FUKUDA YOSHIYUKI , MASUDA KATSUMI , ASAMI AKIRA , TAGUCHI NOBUYUKI , HATTORI YOSHIO , OZEKI TAKAMASA , TAKAHASHI YASUSHI , SATO HIROTAKA , HAYASHI TOSHIKI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device having two conveying members for conveying a developer in a longitudinal direction and forming a circulation path, which are disposed facing a developer carrier, path for supplying and collecting the developer to/from the developer carrier separately, and a developer regulating member disposed below the developer carrier; to prevent screw-pitched density unevenness corresponding to the pitch of the screw part of a first conveying member from being generated on an output image; and to provide a process cartridge and an image forming apparatus. SOLUTION: The first conveying member 13b1 is a screw member constituted by helically winding the screw part around a shaft part. The screw part is formed so that the outer diameter thereof may be continuously or stepwise reduced from the upstream side to the downstream side in a conveying direction. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有两个输送构件的显影装置，所述输送构件用于沿纵向方向输送显影剂并形成面向显影剂载体的循环路径，用于向显影剂载体供应和收集显影剂显影剂载体，以及设置在显影剂载体下方的显影剂调节构件; 以防止在输出图像上产生与第一输送部件的螺纹部分的螺距相对应的螺距偏差密度不均匀; 并提供处理盒和图像形成装置。解决方案：第一输送构件13b1是通过螺纹部分围绕轴部螺旋缠绕而构成的螺纹构件。螺纹部形成为使得其外径可以沿输送方向从上游侧到下游侧连续或逐步地减小。版权所有（C）2011，JPO＆INPIT

57. 发明专利

JP2009036875A Developing device, process cartridge, image forming apparatus and toner 有权
标题翻译：开发设备，过程盒，图像形成设备和调色剂
公开(公告)号：JP2009036875A
公开(公告)日：2009-02-19
申请号：JP2007199461
申请日：2007-07-31
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHIDA KEIICHI
IPC分类号： G03G15/08 , G03G9/087 , G03G15/09
摘要： PROBLEM TO BE SOLVED: To provide a developing device for suppressing scattering of toner caused by gas ejected from the end in the longitudinal direction of a developer carrier, and to provide a process cartridge, an image forming apparatus and toner. SOLUTION: This developing device includes: a developing container 50 having a first opening 50a at a part opposite to an image carrier 1; the developer carrier 51 for carrying a developer to the opposite part; a second opening 50b provided in the developer container outside of the first opening; and an air current passage 50c for gas flowing into the developing container via a gap between the developer carrier and the developing container through the opposite part and discharged from the second opening. At least the space of a facing portion between the developing container and the developer carrier in a predetermined range of an angle from a portion of the developing container forming the edge of the downstream side in the rotating direction of the developer carrier of the first opening around the rotating axis of the developer carrier toward the downstream side in the rotating direction is constant in the direction orthogonal to the longitudinal direction of the developer carrier, and widened in the longitudinal direction from the end toward the central part. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于抑制由从显影剂载体的纵向方向端部喷出的气体引起的调色剂飞散的显影装置，并提供处理盒，成像设备和调色剂。解决方案：该显影装置包括：显影容器50，其在与图像载体1相对的部分具有第一开口50a; 用于将显影剂携带到相对部分的显影剂载体51; 设置在第一开口外侧的显影剂容器内的第二开口部50b; 以及气流通路50c，用于气体通过相对部分经由显影剂载体和显影容器之间的间隙流入显影容器并从第二开口排出。至少所述显影容器和所述显影剂载体之间的相对部分的空间与所述显影容器的形成所述第一开口周围的显影剂载体的旋转方向的下游侧边缘的部分成一角度的预定范围显影剂载体的旋转方向的旋转轴线在与显影剂载体的纵向方向正交的方向上是恒定的，并且从端部向中心部分在纵向方向上变宽。版权所有（C）2009，JPO＆INPIT

58. 发明专利

JP2007148335A Developing device, process cartridge, image forming apparatus and toner 有权
标题翻译：开发设备，过程盒，图像形成设备和调色剂
公开(公告)号：JP2007148335A
公开(公告)日：2007-06-14
申请号：JP2006140896
申请日：2006-05-19
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHIDA KEIICHI , MASUDA KATSUMI , HATTORI YOSHIO , SUZUKI YUJI
IPC分类号： G03G15/08 , G03G9/08 , G03G9/087 , G03G15/09
摘要： PROBLEM TO BE SOLVED: To provide a developing device in which an opening is made at a proper position and a stable gas passage is formed directed toward the opening to suppress toner scattering, a process cartridge, an image forming apparatus and a toner suitable for use in the image forming apparatus. SOLUTION: The developing device 5 in an image forming section 6, disposed under an intermediate transfer belt 8 consists essentially of a developing roller 51 facing a photoreceptor drum 1; a doctor blade 52; transport screws 55, 56 disposed in developer storage portions 53, 54; a covering case 50 located above the developing roller 51; the opening 50a made in the case 50, in such a way that it communicates with the outside of the device; a filter 61 attached to the opening 50a; and a wall portion 58 integrally attached to the case 50, in such a way as to cover the sides of the developing roller 51. An exhaust mechanism is formed by the opening 50a and the filter 61. The exhaust mechanism is located above the transport screw 55 in an upstream region (region with higher toner concentration) of a certain zone from an end on the upstream side of a transport direction of a developer directed toward the downstream side, in an area where the developing roller 51 and the transport screw 55 face each other. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种显影装置，其中在正确的位置处形成开口，并且形成指向开口的稳定的气体通道以抑制调色剂飞散，处理盒，图像形成装置和调色剂适用于图像形成装置。解决方案：图像形成部分6中的设置在中间转印带8下方的显影装置5基本上由面向感光鼓1的显影辊51组成。刮刀52; 设置在显影剂储存部分53,54中的传送螺丝55,56; 位于显影辊51上方的覆盖壳体50; 在壳体50中形成的开口部50a以与设备的外部连通的方式进行连接; 安装在开口50a上的过滤器61; 以及以覆盖显影辊51的侧面的方式一体地安装到壳体50的壁部58.排气机构由开口50a和过滤器61形成。排气机构位于输送螺杆的上方 55在显影辊51和输送螺杆55面对的区域中从指向下游侧的显影剂的输送方向的上游侧的端部的上游区域（具有较高调色剂浓度的区域）彼此。版权所有（C）2007，JPO＆INPIT

59. 发明专利

JP2007065453A Developing device, process cartridge, and image forming apparatus 有权
标题翻译：开发设备，过程盒和图像形成装置
公开(公告)号：JP2007065453A
公开(公告)日：2007-03-15
申请号：JP2005253243
申请日：2005-09-01
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HATTORI YOSHIO , YOSHIDA KEIICHI , TANAKA HIDEKI , KAWAHARA SHINICHI , FUJISHIRO TAKATSUGU
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device that is equipped with a first developer agitating and conveying member which supplies a developer to a developer carrier while agitating and conveying the developer, a second developer conveying member which agitates and conveys a developer in the opposite direction from the developer agitating and conveying direction of the first developer carrying member, and a partition wall which partitions off the first developer agitating and conveying member and second developer agitating and conveying member, and is capable of stable development of high image quality, and a process cartridge equipped with the same and an image forming apparatus. SOLUTION: A gap 46 between an upper casing 42 and the partition wall 44 is hermetically sealed by providing Mylar(R) as an elastic member which has its end brought into close contact with the lower surface of an upper casing 42 on the partition wall 44. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种显影装置，其配备有在搅拌和输送显影剂的同时将显影剂供应到显影剂载体的第一显影剂搅拌和输送构件，搅拌和输送显影剂的第二显影剂输送构件与第一显影剂承载构件的显影剂搅拌和输送方向相反的方向，以及分隔开第一显影剂搅拌输送构件和第二显影剂搅拌输送构件的分隔壁，并且能够稳定地发展高图像质量以及配有该处理盒和图像形成装置的处理盒。解决方案：上壳体42和分隔壁44之间的间隙46通过提供作为弹性构件的Mylar而被气密地密封，弹性构件的端部与上壳体42的下表面紧密接触分隔墙44.版权所有（C）2007，JPO＆INPIT

60. 发明专利

JP2006098476A Charger, process cartridge, and image forming apparatus 有权
标题翻译：充电器，过程盒和图像形成装置
公开(公告)号：JP2006098476A
公开(公告)日：2006-04-13
申请号：JP2004281427
申请日：2004-09-28
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUDA TAKEO , KAWAHARA SHINICHI , YOSHIDA KEIICHI , HATTORI YOSHIO , TANAKA HIDEKI
IPC分类号： G03G15/02 , G03G9/08 , G03G9/087 , G03G21/10
CPC分类号： G03G15/0225 , G03G2215/021
摘要： PROBLEM TO BE SOLVED: To provide a charger which does not spoil cleaning property even when assembling property is improved, and which can retain its performance even in a stored state for a long period of time, and to provide a process cartridge and an image forming apparatus each equipped with the charging device. SOLUTION: In the charger comprising: a charging roller 31; a charge cleaning member 33; a charge energizing member 32 for energizing the charging roller 31 to an image carrier 10; and a cleaning energizing member 38 for energizing the cleaning member 33 so that the member 33 is brought into contact with the charging roller 31, A>B is satisfied wherein A is pressing force of the cleaning member 33 against the charging roller 31 in a state where the charging roller 31 is loaded in contact with or close to the surface of the image carrier 10; and B is pressing force in a state before such loading. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供即使在组装性能得到改善时也不会破坏清洁性能的充电器，并且即使在长时间的存储状态下也能够保持其性能，并且提供处理盒和每个配备有充电装置的图像形成装置。解决方案：在充电器中，包括：充电辊31; 电荷清除部件33; 用于将充电辊31激励到图像载体10的充电激励构件32; 以及用于使清洁部件33通电以使部件33与充电辊31接触的清洁用能部件38，A> B满足A为清扫部件33在充电辊31的状态下的按压力其中充电辊31被加载成与图像载体10的表面接触或接近; 并且B在这种加载之前的状态下是按压力。版权所有（C）2006，JPO＆NCIPI

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