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41. 发明专利

JP2005234079A Developing device and image forming apparatus using the same 有权
标题翻译：使用它的开发装置和图像形成装置
公开(公告)号：JP2005234079A
公开(公告)日：2005-09-02
申请号：JP2004041015
申请日：2004-02-18
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： YAMAURA MASAAKI , NODA AKIHIKO , OZAKI YOSHIFUMI , OBA SHOTA , UEMATSU RYOSUKE , WATANABE TAKEAKI , SOGA HIROO , HAGIWARA YOSHIHIRO , ISHIBASHI JUNICHI , IWAMURA TAKUYA
IPC分类号： G03G15/09 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device which can maintain stable image quality by suppressing the supersaturation of a toner concentration of a developer carrier without the supply of excessive toner at a time to developer containers even when the amount of the developer retreating to a toner retreating section 7 is large. SOLUTION: The developing device is equipped with a developer carrier 3, the first developer container 4a, the toner retreating section 7, a developer separating means 8, the second developer container 4b containing the two-component developer having the toner concentration higher than the toner concentration of the two-component developer carried and conveyed by the developer carrier 3 in such a manner that the developer can be supplied to the first developer container 4a, and a toner container 5 containing the toner in such a manner that the toner can be supplied into the second developer container 4b. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种可以通过抑制显影剂载体的调色剂浓度的过饱和而不会一次向显影剂容器供应过量调色剂而能够保持稳定的图像质量的显影装置，即使显影剂的量后退到调色剂回收部分7很大。解决方案：显影装置配备有显影剂载体3，第一显影剂容器4a，调色剂回收部分7，显影剂分离装置8，第二显影剂容器4b包含调色剂浓度较高的双组分显影剂比显影剂载体3携带和输送的双组分显影剂的调色剂浓度高得可以将显影剂供应到第一显影剂容器4a和调色剂容器5，调色剂容器5以调色剂可以供应到第二显影剂容器4b中。版权所有（C）2005，JPO＆NCIPI

42. 发明专利

JP2005208334A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2005208334A
公开(公告)日：2005-08-04
申请号：JP2004014732
申请日：2004-01-22
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： OBA SHOTA , NODA AKIHIKO , OZAKI YOSHIFUMI , YAMAURA MASAAKI , UEMATSU RYOSUKE , WATANABE TAKEAKI , SOGA HIROO , HAGIWARA YOSHIHIRO , ISHIBASHI JUNICHI , IWAMURA TAKUYA
IPC分类号： G03G21/00 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus urging a user to install a developing device to be in a correct state inexpensively with simple constitution without newly providing a correction mechanism for the inclination of the developing device.
SOLUTION: The image forming apparatus 10 has the developing device 24 which has a developer carrier 32, a developer storage part 33, a toner storage part 35, a developer separation means separating developer to the developer storage part 33 side or the toner storage part 35 side in accordance with toner concentration and a stirring and transporting member 36 stirring and transporting the developer in the rotary shaft direction of the developer carrier 32, and where the developer separated to the toner storage part 35 side flows into the developer storage part 33 while it autonomously incorporates toner from the toner storage part 35. It is equipped with an inclination detection means S detecting the inclination of the developing device 24 in the rotary shaft direction and performs prescribed processing for abnormality when the developing device 24 is inclined by an amount equal to or above a specific value based on the result of detection by the inclination detection means S.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种图像形成装置，其以简单的结构迫使用户以廉价的方式将显影装置安装在正确的状态，而不需要重新提供用于显影装置的倾斜的校正机构。图像形成装置10具有显影装置24，显影装置24具有显影剂载体32，显影剂储存部分33，调色剂储存部分35，显影剂分离装置将显影剂分离到显影剂储存部分33侧或调色剂存储部分35侧，以及搅拌和传送构件36，其在显影剂载体32的旋转轴方向上搅拌并输送显影剂，并且分离到调色剂储存部分35侧的显影剂流入显影剂储存部分同时它自动地从调色剂存储部分35中包含调色剂。它配备有倾斜检测装置S，其检测显影装置24在旋转轴方向上的倾斜度，并且当显影装置24倾斜一个基于倾斜检测装置S的检测结果，等于或大于特定值的量 YRIGHT：（C）2005，JPO＆NCIPI

43. 发明专利

JP2005077494A Development device 审中-公开
标题翻译：开发设备
公开(公告)号：JP2005077494A
公开(公告)日：2005-03-24
申请号：JP2003304677
申请日：2003-08-28
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： OBA SHOTA , NODA AKIHIKO , OZAKI YOSHIFUMI , YAMAURA MASAAKI
IPC分类号： G03G15/09 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a development device which prevents not only development density from decreasing but also a magnetic carrier from sticking to an image carrier. SOLUTION: The development device includes: a rotary development sleeve; and a magnet roll which is fixed within the development sleeve independently of the development sleeve and has a plurality of magnetic poles arranged in the direction of the rotation of the development sleeve. The development device toner-develops an electrostatic latent image on the image carrier with two-component developer on the surface of the development sleeve, which consists of toner and magnetic carrier. The magnet roll includes the first magnetic pole and a second magnetic pole which is adjacent to the first magnetic pole, different in polarity from the first magnetic pole, and stronger in magnetic force than the first magnetic pole, such that the first magnetic pole and the second magnetic pole are located upstream and downstream, respectively, of a development point at which the development sleeve is the closest to the image carrier in the direction of the rotation of the development sleeve. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种显影装置，其不仅防止显影密度降低，而且防止磁性载体粘附到图像载体上。解决方案：显影装置包括：旋转显影套筒; 以及磁体辊，其独立于显影套筒固定在显影套筒内，并且具有沿显影套筒的旋转方向布置的多个磁极。显影装置调色剂在显影套筒的表面上由双组分显影剂在图像载体上显影静电潜像，其由调色剂和磁性载体组成。磁辊包括与第一磁极相邻的第一磁极和与第一磁极的极性不同的第二磁极和比第一磁极更强的磁力，使得第一磁极和第二磁极分别位于显影套筒在显影套筒旋转方向上最靠近图像载体的显影点的上游和下游。版权所有（C）2005，JPO＆NCIPI

44. 发明专利

JP2005077490A Development device 有权
标题翻译：开发设备
公开(公告)号：JP2005077490A
公开(公告)日：2005-03-24
申请号：JP2003304673
申请日：2003-08-28
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： NODA AKIHIKO , OZAKI YOSHIFUMI , OBA SHOTA , YAMAURA MASAAKI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a development device which steadily adjusts toner concentration inside developer stored in a developer storage part. SOLUTION: The development device which includes a development roll which holds thereon developer composed of toner and a magnetic carrier and a housing which accommodates the development roll is provided with a layer thickness restricting member which restricts the layer thickness of the developer; a partition member which divides the interior of the housing into the developer storage part which is formed adjacent to the development roll and stores the developer, and a toner storage part which is formed with the developer storage part located between the development roll and the toner storage part itself and mainly stores the toner, wherein the partition member is located in the vicinity of both of the development roll and the layer thickness restricting member and forms a first opening between the development roll and the partition member itself, and a second opening between the layer thickness regulating member and the partition member itself, so that the developer obstructed by the layer thickness restricting member is made to pass through the second opening and is guided to the toner storage part; and a press-restricting member which restricts the pressing force of the toner in the storage part applied to the developer passing through the second opening toward the toner storage part. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种稳定地调节存储在显影剂储存部分中的显影剂内的调色剂浓度的显影装置。解决方案：包括保持着由调色剂构成的显影剂和磁性载体的显影辊和容纳显影辊的壳体的显影装置设置有限制显影剂的层厚度的层厚限制构件; 分隔构件，其将壳体的内部分隔成与显影辊相邻形成并存储显影剂的显影剂储存部分;以及调色剂储存部分，其形成有位于显影辊和调色剂储存器之间的显影剂储存部分并且主要存储调色剂，其中分隔构件位于显影辊和层厚限制构件两者附近，并且在显影辊和分隔构件本身之间形成第一开口，并且在第二开口之间形成第二开口层厚限制构件和分隔构件本身，使得被层厚度限制构件阻挡的显影剂通过第二开口并被引导到调色剂储存部分; 以及压力限制构件，其限制施加到通过第二开口的显影剂朝向调色剂存储部分的存储部分中的调色剂的按压力。版权所有（C）2005，JPO＆NCIPI

45. 发明专利

JP2004191682A Developing device and image forming apparatus using the same 有权
公开(公告)号：JP2004191682A
公开(公告)日：2004-07-08
申请号：JP2002359944
申请日：2002-12-11
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： YAMAURA MASAAKI , NODA AKIHIKO , OZAKI YOSHIFUMI , OBA SHOTA
IPC分类号： G03G15/09 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device adaptable to the continuous output of a high density image, and whose running cost is reduced by uniformly taking in toner, as for a small-sized, low-priced developing device dispensing with a toner concentration sensor and a toner replenishing mechanism. SOLUTION: The developing device is provided with a toner storing part 5 arranged communicating with a developer carrier 3 via a developer storing part 4 so as to store the toner to be supplied, a developer retreat part 7 arranged adjacent to the developer carrier 3 and on the downstream side in the developer carrying direction of the developer carrier 3 with respect to the developer storing part 4, and also, communicating with the developer storing part 4 via a circulation path 6, and a developer separating means 8 arranged on the downstream side in the developer carrying direction of the developer carrier 3 with respect to the developer storing part 4 and the developer retreat part 7, and for partly damming two-component developer carried by the developer carrier 3 as the surplus developer and separating the surplus developer into the developer storing part 4 or the developer retreat part 7 in accordance with the toner concentration. COPYRIGHT: (C)2004,JPO&NCIPI

46. 发明专利

JP2004037907A Developing device and image forming device 有权
标题翻译：开发设备和图像形成装置
公开(公告)号：JP2004037907A
公开(公告)日：2004-02-05
申请号：JP2002195874
申请日：2002-07-04
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： OZAKI YOSHIFUMI , TOYODA YUTAKA , NODA AKIHIKO , OBA SHOTA , YAMAURA MASAAKI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device which suppresses a decrease in electrostatic charging property of a developer to prolong the life of the developer although what is called a 1.5-component development system is employed and an image forming device using the same. SOLUTION: The developing device comprises a developer carrier 32 which carries a two-component developer G, a restricting member 33 which restricts the amount of the developer, a developer storage part 34 which is adjacent to the developer carrier 32 and stores the developer G, and a toner storage part 35 which is linked with the developer carrier 32 through the developer storage part 34 and stores a toner T; and the developer G is in contact with the toner T supplied from the toner storage part 35 nearby the developer carrier 32 and the state of contact between the developer G and the toner T supplied from the toner storage part 35 changes corresponding to variation in toner density of the developer G to autonomously control the reception amount of the toner T. The developing device is such that a magnetic carrier C is stored in the toner storage part 35 together with the toner T and the image forming device uses the same. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种显影装置，其抑制显影剂的静电充电性能的降低以延长显影剂的寿命，尽管采用了所谓的1.5组分显影系统，以及使用相同。解决方案：显影装置包括承载双组分显影剂G的显影剂载体32，限制显影剂量的限制构件33，与显影剂载体32相邻的显影剂储存部分34，显影剂G和通过显影剂储存部分34与显影剂载体32连接并存储调色剂T的调色剂存储部分35; 并且显影剂G与从显影剂载体32附近的调色剂存储部分35提供的调色剂T接触，并且显影剂G和从调色剂存储部分35提供的调色剂T之间的接触状态随调色剂浓度的变化而变化以自主地控制调色剂T的接收量。显影装置使得磁性载体C与调色剂T一起存储在调色剂存储部分35中，并且图像形成装置使用它。版权所有（C）2004，JPO

47. 发明专利

JP2013152307A Image formation apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2013152307A
公开(公告)日：2013-08-08
申请号：JP2012012452
申请日：2012-01-24
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： YAMAURA MASAAKI , NAKATSUHARA SEIYA
IPC分类号： G03G15/16
摘要： PROBLEM TO BE SOLVED: To prevent a back of a record medium from being soiled, due to adhesion of an image portion outside a top end of the record medium onto transfer means, when transferring a frameless image.SOLUTION: An image formation apparatus 1 has a secondary transfer part for transferring, to a sheet P, a toner image on an intermediate transfer belt 30. In the secondary transfer part, two secondary transfer rolls 42a, 42b are arranged along a conveyance direction of the sheet P in a state facing the toner image on the intermediate transfer belt 30. When transferring a frameless image onto the sheet P, after the sheet P and a top end of the toner image on the intermediate transfer belt 30 reach the secondary transfer roll 42a on a conveyance upstream side and before the secondary transfer roll 42a makes a full turn starting from the top end, the secondary transfer roll 42a is moved to a position away from the sheet P.
摘要翻译：要解决的问题：为了防止记录介质的背面由于在记录介质的顶端外部的图像部分粘附到传送装置上，当传送无框图像时。图像形成装置1具有用于将中间转印带30上的调色剂图像转印到纸张P上的二次转印部分。在二次转印部分中，沿着纸张P的输送方向布置两个二次转印辊42a，42b，在中间转印带30上的调色剂图像。当将无框图像转印到纸张P上时，在纸张P和中间转印带30上的调色剂图像的顶端在输送上游侧到达二次转印辊42a之前，二次转印辊42a从顶端开始全转，二次转印辊42a移动到远离纸张P的位置。

48. 发明专利

JP2007293040A Cleaning device 审中-公开
标题翻译：清洁装置
公开(公告)号：JP2007293040A
公开(公告)日：2007-11-08
申请号：JP2006120892
申请日：2006-04-25
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： HANDA OSAMU , MATSUMOTO MITSUHIRO , KATAHIRA MASAHIRO , YAMAMOTO MITSUO , YAMAURA MASAAKI
IPC分类号： G03G15/02
摘要： PROBLEM TO BE SOLVED: To provide a cleaning device for satisfactorily cleaning a sticking matter sticking on the surface of an electrifying roll without scratching the surface of the electrifying roll. SOLUTION: The cleaning device 10 electrifies at a prescribed potential, an electrifying member for electrifying a photoreceptor 2 to be formed with an electrostatic latent image, the cleaning device 10 includes a cleaning pad 13 constituted by successively layering an elastic foam layer 30 and a surface layer 31 having hardness higher than that of the elastic foam layer 30 and having a thickness equal to or below the average cell diameter of the elastic foam layer 30. Since the cleaning pad 13 includes the elastic foam layer 30 and the surface layer 31, the cleaning pad 13 can uniformly come in contact with the electrifying member with a low load, consequently, the cleaning device 10 can satisfactorily clean the electrifying roll without scratching the surface of the electrifying member by the surface layer 31 of high hardness. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够令人满意地清洁附着在带电辊的表面上的粘附物质的清洁装置，而不会刮伤带电辊的表面。解决方案：清洁装置10以规定的电位通电，用于使要形成静电潜像的感光体2通电的带电构件，清洁装置10包括清洁垫13，该清洁垫13通过将弹性泡沫层30 以及具有比弹性泡沫层30的硬度高的弹性泡沫层30的具有等于或低于弹性泡沫层30的平均泡孔直径的厚度的表面层31.由于清洁垫13包括弹性泡沫层30和表面层如图31所示，清洁垫13能够以低负荷均匀地与带电构件接触，因此，清洁装置10可以令人满意地清洁带电辊，而不会由高硬度的表面层31划伤带电构件的表面。版权所有（C）2008，JPO＆INPIT

49. 发明专利

JP2007121465A Developing device, and image forming apparatus and process cartridge using the same 审中-公开
标题翻译：开发装置和图像形成装置和使用其的处理盒
公开(公告)号：JP2007121465A
公开(公告)日：2007-05-17
申请号：JP2005310488
申请日：2005-10-25
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： NODA AKIHIKO , MATSUMURA YASUO , OZAKI YOSHIFUMI , OBA SHOTA , YAMAURA MASAAKI
IPC分类号： G03G9/087 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device that can suppress decrease in image density or production of a ghost image even when images are continuously formed, and suppress generation of an irregular state in a succeeding image after a solid image is formed. SOLUTION: The developing device is equipped with at least a developing roll that is disposed in contact with or close to an image carrier rotating in one direction, rotates in one direction and supplies a developer comprising at least a toner containing a binder resin to the image carrier, and a regulating member that is disposed close to the developing roll and regulates the amount of the developer supplied to the image carrier, with the entire circumference of the developing roll being covered with the developer; wherein surfaces of the toner have a substance containing a fluorine atom and/or a silicon atom. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供即使在连续形成图像时也可以抑制图像浓度降低或重影的产生的显影装置，并且在形成实心图像之后抑制后续图像中的不规则状态的产生。解决方案：显影装置配备有至少一个显影辊，该显影辊设置成与一个方向旋转的图像载体接触或靠近，沿一个方向旋转，并提供至少包含粘合剂树脂的调色剂的显影剂图像载体，以及调节构件，其布置成靠近显影辊并调节供应到图像载体的显影剂的量，显影辊的整个周边被显影剂覆盖; 其中调色剂的表面具有含有氟原子和/或硅原子的物质。版权所有（C）2007，JPO＆INPIT

50. 发明专利

JP2007114639A Developing device 审中-公开
标题翻译：开发设备
公开(公告)号：JP2007114639A
公开(公告)日：2007-05-10
申请号：JP2005308077
申请日：2005-10-24
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： YAMAURA MASAAKI , NODA AKIHIKO
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To form a uniform thin toner layer on a developer carrier by reducing the contact pressure of a layer formation member on a developer carrier and, at the same time, ensuring an amount of toner charge. SOLUTION: The hardness of the base material layer 3b of the layer formation member 3 that forms a thin layer of non-magnetic one-component toner by being disposed in contact with the peripheral face of the developer carrier 1, which carries the toner, is set to 60° or less when measured by an Asker C harness meter. Also, the center-line average roughness Ra of the surface of a surface layer 3c stuck to the base material layer 3b is set to 0.2 μm or less. In addition, a difference between the ionization potential of the surface layer 3c and the ionization potential of toner is made 0.1eV or greater in absolute value and thereby the amount of toner charge is ensured. Thus, even if the contact pressure of the layer formation member 3 on the developer carrier 1 considerably decreases, a uniform toner layer can be formed on the developer carrier. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过降低显影剂载体上的层形成构件的接触压力并同时确保调色剂带电量，在显影剂载体上形成均匀的薄调色剂层。解决方案：通过与显影剂载体1的周面接触而形成非磁性单组分调色剂的薄层的层形成部件3的基材层3b的硬度，其携带调色剂在通过Asker C线束仪测量时设定为60°或更小。另外，粘贴在基材层3b上的表面层3c的表面的中心线平均粗糙度Ra设定为0.2μm以下。此外，表面层3c的电离电位和调色剂的电离电位之间的差异使得绝对值为0.1eV或更大，由此确保调色剂充电量。因此，即使显影剂载体1上的层形成构件3的接触压力显着降低，也可以在显影剂载体上形成均匀的调色剂层。版权所有（C）2007，JPO＆INPIT

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