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1. 发明专利

JP2013164579A 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：JP2013164579A
公开(公告)日：2013-08-22
申请号：JP2012254094
申请日：2012-11-20
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ADACHI RIE , NAKAGAWA SHUICHI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device capable of suppressing a deficiency in the amount of developer that reaches a developing unit with a simple configuration even in the situation where fluidity of the developer is decreased.SOLUTION: A developing device is configured such that a position of a supply nip part 38 formed by a developing roller 33 and a supply roller 34, and shapes such as depth and width of a valley of a V-shaped area 39 formed in the vicinity of the edge on the upstream side in a direction of rotation of the supply roller 34 are periodically changed in association with rotation about a shaft 34a of the supply roller 34. Specifically, an elliptical elastic layer 34b is provided on the outer periphery of the shaft 34a of the supply roller 34.
摘要翻译：要解决的问题：即使在显影剂的流动性降低的情况下，也能够以简单的结构提供能够抑制到达显影单元的显影剂量不足的显影装置。解决方案：一种显影装置，由显影辊33和供给辊34形成的供给压入部38的位置，以及在上游侧的边缘附近形成的V字形区域39的谷深度和宽度的形状供给辊34的旋转方向与供给辊34的轴34a的旋转相关地周期性地变化。具体而言，在供给辊34的轴34a的外周设置有椭圆形弹性层34b。

2. 发明专利

JP2011053453A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2011053453A
公开(公告)日：2011-03-17
申请号：JP2009202420
申请日：2009-09-02
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAKAGAWA SHUICHI , IKUNO SHUICHI , INOUE TOMOSHI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus configured to obtain a high-glossiness toner image by overlaying a glossiness imparting material on a recording material, performing fixation across the glossiness imparting material, and then, separating the glossiness imparting member from the recording material after the fixation process, wherein, even if using a thin glossiness imparting material which probably winds around a heating roller, the glossiness imparting material is prevented from winding around the heating roller, thereby further improving heat efficiency in fixation.
SOLUTION: The sheet-like glossiness imparting material S2 is configured to be inserted into and caught at a fixation nip at an oblique angle in a plane view in an extending direction of the fixation nip, then, the total area of the portion of a corner S2a being the leading end of the glossiness imparting material S2 in the extending direction of the fixation nip is reduced, accordingly, the total adhesion of the leading end is reduced, then, even if using the thin glossiness imparting material which probably winds around the heating roller 141 in a conventional manner, the leading end of the glossiness imparting material S2 is separated from the heating roller so as to prevent the material S2 from winding around the heating roller 141.
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，其被配置为通过将光泽度赋予材料覆盖在记录材料上来获得高光泽度的调色剂图像，执行经过光泽度赋予材料的定影，然后将光泽赋予构件在固定过程之后的记录材料中，即使使用可能缠绕在加热辊周围的薄光泽度赋予材料，防止光泽度赋予材料卷绕在加热辊上，从而进一步提高定影中的热效率。解决方案：片状光泽赋予材料S2被构造成在定影夹持部的延伸方向上以平面视角插入并固定在定影夹持部上，然后将部分的总面积作为定影辊隙的延伸方向上的光泽度赋予材料S2的前端的角部S2a减小，因此导致前端部的总附着力降低，则即使使用可能会卷曲的光泽度赋予材料以加热辊141绕着加热辊141的方式将光泽度赋予材料S2的前端与加热辊分离，以防止材料S2卷绕在加热辊141周围。（C）2011， JPO＆INPIT

3. 发明专利

JP2010156756A Separation device and image forming apparatus 有权
标题翻译：分离装置和图像形成装置
公开(公告)号：JP2010156756A
公开(公告)日：2010-07-15
申请号：JP2008333833
申请日：2008-12-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： IKUNO SHUICHI , NAKAGAWA SHUICHI , INOUE TOMOSHI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a separation device for separating a glossy sheet from a recording medium while maintaining excellent image quality.
SOLUTION: The separation device separates the glossy sheet S from the sheet type recording medium P on which an image has been fixed while the glossy sheet S is superposed on an image forming surface of the recording medium P. Width W1 of the glossy sheet S is made larger than maximum width W2 of the recording medium P. The separation device includes a separating member 23 separating the glossy sheet S from the recording medium P by biasing projecting portions S
1 and S
2 of the glossy sheet S projecting to a width direction further than the recording medium P in the state where the glossy sheet S is superposed on the recording medium P from a surface side of the glossy sheet S on which the recording medium P is superposed, to the side opposite thereto.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于将光泽片材与记录介质分离同时保持优异的图像质量的分离装置。解决方案：分离装置将光泽纸S与已经固定有图像的片状记录介质P分离，同时光泽纸S叠加在记录介质P的图像形成表面上。光泽的宽度W1 片材S被制成大于记录介质P的最大宽度W2.分离装置包括分离构件23，其通过偏置突出部分S 1 和S 2 介质P在其相对侧重叠。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2010038990A Developing apparatus, process cartridge, and image forming apparatus 审中-公开
标题翻译：开发设备，工艺盒和图像形成装置
公开(公告)号：JP2010038990A
公开(公告)日：2010-02-18
申请号：JP2008198727
申请日：2008-07-31
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMADA SHINTARO , MURAYAMA SHIN , INOUE RYUJI , NAKAGAWA SHUICHI , ONISHI KAZUTOMI
IPC分类号： G03G15/08
CPC分类号： G03G15/065 , G03G15/0812 , G03G2215/0643
摘要： PROBLEM TO BE SOLVED: To provide a developing apparatus capable of applying sufficient voltage for improving electrostatic chargeability of a developer, preventing occurrence of a problem wherein the developer is scattered onto a layer regulation member, and forming stable quality of image. SOLUTION: An electric field control member 110 and the layer regulation member 104 are connected with power supplys 111 and 112 capable of setting voltage independently from each other. Amount of the passing toner supplied into a developing roller 103 by a supply roller 105 is regulated by the layer regulation member 104 and is electrostatically charged due to the friction between the layer regulation member 104 and it. By setting a lower voltage to be applied on the electric field control member 110 than a voltage to be applied on the layer regulation member 104, the strength of the electric field affecting the toner after passing through a regulation nip is reduced while maintaining a sufficient electric field for improving the electrostatic chargeability of the developer within a regulation nip region. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够施加足够的电压以提高显影剂的静电荷性的显影装置，防止显影剂散布到层限制构件上并且形成稳定的图像质量的问题的发生。解决方案：电场控制构件110和层调节构件104与能够彼此独立地设置电压的电源111和112连接。通过供给辊105供给到显影辊103中的通过调色剂的量由层调节构件104调节，并且由于层调节构件104与其之间的摩擦而被静电充电。通过将施加在电场控制构件110上的电压设置为比施加在层限制构件104上的电压更低的电压，在保持足够的电流的同时减小影响调色剂的电场强度用于改善调节压区内的显影剂的静电荷性。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2008281844A Development method, developer, image forming method, image forming apparatus, calculation device for amount of consumption, and process cartridge 审中-公开
标题翻译：开发方法，开发者，图像形成方法，图像形成装置，消费量的计算装置和处理盒
公开(公告)号：JP2008281844A
公开(公告)日：2008-11-20
申请号：JP2007126834
申请日：2007-05-11
申请人： Ricoh Co Ltd , Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社 , 株式会社リコー
发明人： KONISHI RUMI , NAKAGAWA SHUICHI , INOUE RYUJI , MURAYAMA SHIN , ONISHI KAZUTOMI , YAMADA SHINTARO
IPC分类号： G03G15/00 , G03G21/00 , G03G21/14
CPC分类号： G03G15/0806 , G03G15/0856 , G03G15/5041 , G03G2215/0634 , G03G2215/0888 , G03G2221/0005
摘要： PROBLEM TO BE SOLVED: To prevent occurrence of an abnormal image by efficiently removing a degraded toner on a developer carrier; to obtain excellent images over a long period of time; and to achieve long service life of an apparatus. SOLUTION: A development method includes developing, with a developer supplied from the developer carrier, an electrostatic latent image on a latent image carrier that is rotated. In the method, the amount of consumption of the developer is calculated with respective conditions for forming the image and carrying out a compulsory consumption mode different from each other by using a means for calculating the amount of consumption in the developer; and a function of carrying out the compulsory consumption mode for discharging the developer that remains on the developer carrier by applying a developing bias different from that when forming the image for a predetermined period of time. Accordingly, the amount of consumption in each mode can be calculated accurately, thereby preventing the generation of the abnormal image by efficiently removing the degraded toner on the developer carrier, obtaining the excellent images over a long period of time, and achieving long service life of the apparatus. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过有效地除去显影剂载体上的降解的调色剂来防止异常图像的发生; 在长时间内获得优异的图像; 并实现设备的长使用寿命。解决方案：显影方法包括用从显影剂载体提供的显影剂显影静电潜像在潜影载体上旋转。在该方法中，通过使用用于计算显影剂中的消耗量的装置，通过用于形成图像的各个条件和执行彼此不同的强制消费模式来计算显影剂的消耗量; 以及执行强制消耗模式的功能，用于通过施加与形成图像的预定时间段不同的显影偏压来排出保留在显影剂载体上的显影剂。因此，可以精确地计算各模式的消耗量，通过有效地除去显影剂载体上的劣化调色剂，从而防止异常图像的产生，长期获得优异的图像，并且实现长期使用寿命该装置。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2008175998A Developing apparatus, process unit, image forming method, and image forming device 有权
标题翻译：开发设备，处理单元，图像形成方法和图像形成装置
公开(公告)号：JP2008175998A
公开(公告)日：2008-07-31
申请号：JP2007008672
申请日：2007-01-18
申请人： Ricoh Co Ltd , Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社 , 株式会社リコー
发明人： MURAYAMA SHIN , NAKAGAWA SHUICHI , INOUE RYUJI , NAGATOMO YUJI , YAMADA SHINTARO
IPC分类号： G03G15/08 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide a developing apparatus attaining compatibility for both subjects utilizing toner, by providing a toner conveyance member in a substantially horizontal direction on a partition wall and efficiently feeding the toner to a toner feed chamber from an opening part, and preventing excessive toner feed to the toner feed chamber. SOLUTION: The developing apparatus makes lower the developer conveyance force of the substantially horizontal direction by an agitation paddle 106, than other parts, at the upper part of at least one or more opening parts 107 for developer supply provided on a partition member 109 for supplying a developer from a toner-storing chamber 101 to the toner-feed chamber 102. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供使用调色剂的两个受试者达到兼容性的显影装置，通过在分隔壁上沿大致水平的方向设置调色剂传送构件，并且有效地将调色剂从打开部分供给到调色剂供给室并且防止向调色剂供给室输送过量的调色剂。解决方案：显影装置在至少一个或多个用于显影剂供给的开口部分107的上部设置在分隔部件上的情况下，通过搅拌桨106比其他部分更低的大体水平方向的显影剂输送力 109，用于将显影剂从调色剂储存室101供应到调色剂供给室102.版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2008139655A Developing device and image forming apparatus 有权
标题翻译：开发设备和图像形成装置
公开(公告)号：JP2008139655A
公开(公告)日：2008-06-19
申请号：JP2006327004
申请日：2006-12-04
申请人： Ricoh Co Ltd , Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社 , 株式会社リコー
发明人： YAMADA SHINTARO , MURAYAMA SHIN , NAKAGAWA SHUICHI , INOUE RYUJI , NAGATOMO YUJI , ONISHI KAZUTOMI , OYOSHI HIROFUMI , YOSHIDA TOMOSHI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To prevent a developer in a developer supply chamber from becoming excess for a long period of time with a simple configuration in a developing device in which a developer storage chamber for storing a supply developer is disposed above the developer supply chamber for supplying the developer to a developer carrier. SOLUTION: The developing device includes: the developer supply chamber 102 for supplying developer to a developing roller; the developer storage chamber 101 above the developer supply chamber; a developer supply port 111 formed in a partition member 110 between the developer supply chamber and developer storage chamber; a storage chamber screw vane member 106 for stirring and conveying developer above the partition member; and a supply chamber screw vane member 108 for stirring and conveying developer below the partition member. The partition member is provided with a return port 107 for returning the developer from the developer supply chamber to the developer storage chamber. The supply chamber screw vane member is disposed so as to pass directly below the return port. The direction of inclination of the screw vane is reversed directly below the return port so that developer is conveyed from both side in the direction of an axis toward and directly below the return port. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了防止显影剂供应室中的显影剂在长时间内变得过剩，在显影装置中具有简单的构造，其中用于存储供应显影剂的显影剂储存室设置在显影剂上方供应室，用于将显影剂供应到显影剂载体。解决方案：显影装置包括：显影剂供应室102，用于将显影剂供应到显影辊; 显影剂储存室101在显影剂供应室上方; 形成在显影剂供应室和显影剂储存室之间的分隔构件110中的显影剂供给口111; 存储室螺旋叶片构件106，用于搅拌并输送分隔构件上方的显影剂; 以及用于在分隔构件下方搅拌并输送显影剂的供给室螺旋叶片构件108。分隔构件设置有用于将显影剂从显影剂供应室返回到显影剂储存室的返回端口107。供给室螺旋叶片构件设置成直接通过返回口的下方。螺旋叶片的倾斜方向在返回端口的正下方反转，使得显影剂从轴向方向两侧向返回端口的正下方传送。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2007219061A Developing device, process unit, image forming apparatus, development method and image forming method 有权
标题翻译：开发设备，处理单元，图像形成装置，开发方法和图像形成方法
公开(公告)号：JP2007219061A
公开(公告)日：2007-08-30
申请号：JP2006037745
申请日：2006-02-15
申请人： Ricoh Co Ltd , Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社 , 株式会社リコー
发明人： MURAYAMA SHIN , NAKAGAWA SHUICHI , INOUE RYUJI , YAMADA SHINTARO
IPC分类号： G03G15/08 , G03G9/08
CPC分类号： G03G15/0808
摘要： PROBLEM TO BE SOLVED: To provide a developing device 5K in which the torque-up of a feed roller 10K, the unevenness of image density and the wear of the feed roller 10K caused by forming aggregated toner in a gap between the feed roller 10K and the counter side wall 14K of a feed material storage chamber 7K can be suppressed. SOLUTION: In the developing device 5K equipped with: a developing roller 11K of developing an electrostatic latent image carried on a photoreceptor 2K; the feed material storage chamber 7K of storing a toner to be fed to the developing roller 11K; the feed roller 10K of feeding the toner carried on the circumferential face to the development roller 11K; a hopper part 6K arranged at the upper part of the feed material storage chamber 7K and also storing the toner to be supplied to the feed material storage chamber 7K; and a communication port 9K of allowing the hopper part 6K to communicate with the feed material storage chamber 7K, a eaves-like member 70K of blocking the entry of the toner on the feed roller 10K into a gap between the feed roller 10K and the counter side wall 14K of the feed material storage chamber 7K is provided just above the gap. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种显影装置5K，其中进给辊10K的扭矩上升，图像浓度的不均匀性和由进料辊10K在进料之间的间隙中形成聚集调色剂而引起的磨损可以抑制进给材料储存室7K的辊10K和反侧壁14K。解决方案：在具有：在感光体2K上承载静电潜像显影的显影辊11K的显影装置5K中; 存储要供给到显影辊11K的调色剂的进料材料储存室7K; 馈送辊10K，其将携带在圆周面上的调色剂供给到显影辊11K; 设置在进给材料储存室7K的上部的料斗部6K，还存储供给到原料收纳室7K的调色剂; 以及允许料斗部6K与进给材料储存室7K连通的通气口9K，阻挡进料辊10K上的调色剂进入进料辊10K和计数器之间的间隙的檐状构件70K 馈送材料储存室7K的侧壁14K设置在间隙正上方。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2011221150A Rubber roller and image forming device 审中-公开
标题翻译：橡胶滚筒和图像形成装置
公开(公告)号：JP2011221150A
公开(公告)日：2011-11-04
申请号：JP2010088200
申请日：2010-04-06
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NOZAKI CHIYOJI , YASUNAGA HIDEAKI , NAKAGAWA SHUICHI , SHIGESATO KEIICHIRO
IPC分类号： G03G15/08 , C08L71/03 , C08L97/00 , F16C13/00 , G03G15/00 , G03G15/02 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide a rubber roller that is appropriate for use as a developing roller, a charging roller and others because of no chance of contamination of contacting components by vulcanizing agent, and an image forming device that does not generate image noise when forming images using the rubber roller.SOLUTION: A rubber roller comprises a core metal 1 and a rubber layer 2 formed on the core metal. The rubber layer 2 is composed of a rubber composition which includes at least an epichlorohydrin-based rubber material and lignin. The lignin is preferably craft lignin, lignin sulfonate, or lignophenol.

10. 发明专利

JP2011022274A Sheet material and image forming apparatus 有权
标题翻译：材料和图像形成装置
公开(公告)号：JP2011022274A
公开(公告)日：2011-02-03
申请号：JP2009165863
申请日：2009-07-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： IKUNO SHUICHI , NAKAGAWA SHUICHI , INOUE TOMOSHI
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G15/6585 , G03G2215/00531 , G03G2215/00805 , Y10T428/24355 , Y10T428/24942
摘要： PROBLEM TO BE SOLVED: To provide a sheet material which hardly adheres to a nip forming member. SOLUTION: The sheet material S is supplied between a recording medium P which is supplied between a pair of nip forming members 25 and 26 coming in contact with each other and forming a nip, and the nip forming member 25. Adhesion-force reducing processing which reduces an adhesion force to the nip forming member 25 is applied to the surface contacting with the nip forming member 25 of the sheet material S. As the adhesion force reducing processing, for example, the surface contacting with the nip forming member 25 is composed of a fluorine-series material or a silicon-series material. COPYRIGHT: (C)2011,JPO&INPIT

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