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41. 发明授权

US6070037A Image forming apparatus having improved developer limiting member 有权
标题翻译：具有改进的显影剂限制部件的图像形成装置
公开(公告)号：US6070037A
公开(公告)日：2000-05-30
申请号：US294329
申请日：1999-04-20
申请人： Kazuyuki Sugihara , Tomoji Ishikawa , Yoshiyuki Kimura , Kenji Maeda
发明人： Kazuyuki Sugihara , Tomoji Ishikawa , Yoshiyuki Kimura , Kenji Maeda
IPC分类号： G03G15/01 , G03G15/08 , G03G15/09
CPC分类号： G03G15/09 , G03G2215/0177
摘要： An image forming apparatus includes an image bearing member, a developing device to develop a latent image on a surface of the image bearing member, a developer bearing member including a magnet therein, which bears developer on a surface thereof by a magnetic force of the magnet and carries the developer towards a developing position facing the image bearing member by being rotated, a limiting member that is placed facing the developer bearing member so as to limit a thickness of a layer of the developer borne on the developer bearing member, and a developing device casing. The limiting member is provided with a magnetizable member having a protruding portion protruding toward the developer bearing member at a part that does not face the magnet and a recessed part at a part that faces the magnet, in which the magnetizable member is disposed upstream of the limiting member in a developer conveying direction of the developer bearing member and is placed such that the protruding portions are nearer to the surface of the developing roller than the limiting member and the recessed part is more distant from the surface of the developing roller than the limiting member. The limiting member is made of a non-magnetizable material.
摘要翻译：图像形成装置包括图像承载部件，用于显影图像承载部件的表面上的潜像的显影装置，包括其中的磁体的显影剂承载部件，其通过磁体的磁力承载在其表面上的显影剂并通过旋转将显影剂运送到面向图像承载部件的显影位置;面对着显影剂承载部件放置的限制部件，以限制承载于显影剂承载部件上的显影剂层的厚度;以及显影剂设备外壳。限制部件设置有可磁化部件，该可磁化部件具有突出部分，其在不面对磁体的部分处朝着显影剂承载部件突出，并且在面向磁体的部分处具有凹部，其中可磁化部件设置在该磁化部件的上游在显影剂承载构件的显影剂传送方向上的限制构件被放置成使得突出部分比限制构件更靠近显影辊的表面，并且凹部比显影辊的表面更远离显影辊的表面会员。限位构件由不可磁化材料制成。

42. 发明授权

US5956549A Rotary developing device for an image forming apparatus 失效
标题翻译：用于图像形成装置的旋转显影驱动装置
公开(公告)号：US5956549A
公开(公告)日：1999-09-21
申请号：US1654
申请日：1997-12-31
申请人： Kazuyuki Sugihara , Tomoji Ishikawa , Katsuhiro Kosuge
发明人： Kazuyuki Sugihara , Tomoji Ishikawa , Katsuhiro Kosuge
IPC分类号： G03G15/01 , G03G15/08
CPC分类号： G03G15/0126 , G03G15/0822 , G03G2215/0177 , G03G2215/018
摘要： A rotary developing device includes a developing unit having a plurality of developing chambers arranged around an axis of rotation of the developing unit and each having a developer agitating mechanism thereinside wherein the rotary developing device is rotatable about the axis to locate any one of the plurality of developing chambers at a developing position where an image carrier is located. The device includes a drive inputting device located in proximity with the axis of the rotation for inputting a driving force to the agitating mechanism of one of the plurality of developing chambers which is located at the developing position. A drive transmitting mechanism is provided which transmits at a developing units side, a driving force to at least one of the plurality of developing chambers not located at the developing position.
摘要翻译：旋转显影装置包括显影单元，该显影单元具有围绕显影单元的旋转轴线布置的多个显影室，并且每个显影室具有位于其内部的显影剂搅拌机构，其中旋转显影装置可围绕轴线旋转以将多个显影室位于图像载体所在的显影位置。该装置包括位于旋转轴线附近的驱动输入装置，用于向位于显影位置的多个显影室之一的搅拌机构输入驱动力。提供了一种驱动传递机构，其在显影单元侧传递一个驱动力，该驱动力至少位于显影位置的多个显影室中的至少一个。

43. 发明授权

US5940664A Agitation and charging device for an image forming apparatus 失效
标题翻译：用于图像形成装置的搅拌和充电装置
公开(公告)号：US5940664A
公开(公告)日：1999-08-17
申请号：US1653
申请日：1997-12-31
申请人： Kazuyuki Sugihara , Tomoji Ishikawa , Katsuhiro Kosuge
发明人： Kazuyuki Sugihara , Tomoji Ishikawa , Katsuhiro Kosuge
IPC分类号： G03G15/01 , G03G15/08
CPC分类号： G03G15/0126 , G03G15/0822 , G03G2215/0177 , G03G2215/018
摘要： A rotary developing device includes a developing unit having plurality of developing chambers arranged around an axis rotation with each having a developer agitating device located therein wherein the rotary developing device is rotatable about the axis to locate any one of the plurality of developing chambers at a developing position where an image carrier is located, the developer agitating device of one of the plurality of developing chambers located at the developing position and the developer agitating device of at least one of the other developing chambers being drivable and wherein the developer agitating device of the at least one of the other developing chambers has a higher agitation speed than the developer agitating device of the one developing chamber located at the developing position.
摘要翻译：旋转显影装置包括显影单元，该显影单元具有围绕轴线旋转布置的多个显影室，每个显影室具有位于其中的显影剂搅拌装置，其中旋转显影装置可围绕轴线旋转以将多个显影室中的任何一个定位在显影位于图像载体的位置，位于显影位置的多个显影室中的一个的显影剂搅拌装置和至少一个其它显影室的显影剂搅拌装置是可驱动的，并且其中所述显影剂搅拌装置其他显影室中的至少一个具有比位于显影位置的一个显影室的显影剂搅拌装置更高的搅拌速度。

44. 发明授权

US5826146A Color image forming device which changes developing bias when switching between developer units 失效
标题翻译：在显影单元之间切换时改变显影偏压的彩色图像形成装置
公开(公告)号：US5826146A
公开(公告)日：1998-10-20
申请号：US870555
申请日：1997-06-06
申请人： Takayuki Maruta , Hiroshi Takashima , Tomoji Ishikawa , Kazuyuki Sugihara , Shinji Kato , Katsuhiro Kosuge
发明人： Takayuki Maruta , Hiroshi Takashima , Tomoji Ishikawa , Kazuyuki Sugihara , Shinji Kato , Katsuhiro Kosuge
IPC分类号： G03G15/01 , G03G15/06 , G03G15/08
CPC分类号： G03G15/0121 , G03G15/065 , G03G2215/0177
摘要： An image forming device includes a plurality of developing devices and a photosensitive drum. Each of the developing devices includes a developer carrying roller. One of the developing devices is moved to a developing position confronting the photosensitive drum which is formed with a latent image. A first developing bias including a d.c. component and an a.c. component is applied to the developer carrying roller and developer on the developer carrying roller is rendered in contact with the latent image on the photosensitive drum so that the latent image is developed. On the other hand, when the developer on the developer carrying roller comes in contact with and separates from the photosensitive drum due to the movement of the developing device, a second developing bias is applied to the developer carrying roller. The second developing bias generates an electric field where the developer on the developer carrying roller is more reluctant to move toward the photosensitive drum as compared with the first developing bias. The second developing bias may include only a d.c. component.
摘要翻译：图像形成装置包括多个显影装置和感光鼓。每个显影装置包括显影剂承载辊。显影装置中的一个移动到与形成有潜像的感光鼓相对的显影位置。第一个发展中的偏见包括直流组件和a.c. 将显影剂承载辊施加到显影剂承载辊上并使显影剂承载辊上的显影剂与感光鼓上的潜像接触，使潜像显影。另一方面，当显影剂承载辊上的显影剂由于显影装置的移动而与感光鼓接触并与感光鼓分离时，第二显影偏压被施加到显影剂承载辊上。与第一显影偏压相比，第二显影偏压产生电场，显影剂承载辊上的显影剂更不愿意向感光鼓移动。第二种发展中的偏见可能只包括直流零件。

45. 发明授权

US5768664A Toner container for a rotary developing device 失效
标题翻译：用于旋转显影装置的调色剂容器
公开(公告)号：US5768664A
公开(公告)日：1998-06-16
申请号：US788998
申请日：1997-01-27
申请人： Katsuhiro Kosuge , Tomoji Ishikawa , Kazuyuki Sugihara , Shinji Kato
发明人： Katsuhiro Kosuge , Tomoji Ishikawa , Kazuyuki Sugihara , Shinji Kato
IPC分类号： G03G15/01 , G03G15/08 , G03G15/06
CPC分类号： G03G15/0126 , G03G15/0855 , G03G15/0865 , G03G15/0868 , G03G15/0872 , G03G15/0893 , G03G2215/0116 , G03G2215/0177 , G03G2215/0665 , G03G2215/067 , G03G2215/0675 , G03G2215/0685
摘要： A developing device is provided which has a developing chamber, a toner container and a hopper portion all provided together on a revolving holding mechanism. A drive device is provided to revolve the driving mechanism and a stopping device is provided to stop this holding mechanism revolving movement at least to provide the developing chamber in a facing relationship to an image carrier. Moreover, the relative position of the toner chamber and the hopper portion are such that the hopper portion can be replenished with toner from the toner chamber at least once during a complete rotation of the revolving holding mechanism. Replenishment can occur independently of image formation, while the holding mechanism is revolving or during a pause in the revolving of the holding mechanism.
摘要翻译：提供了一种显影装置，其具有在旋转保持机构上一起设置的显影室，调色剂容器和料斗部分。提供驱动装置以使驱动机构旋转，并且设置止动装置以使该保持机构的旋转运动至少以与图像载体面对的关系提供显影室。此外，调色剂室和料斗部分的相对位置使得在旋转保持机构的完全旋转期间，料斗部分可以从调色剂室补充调色剂至少一次。补充可以独立于图像形成而发生，同时保持机构在保持机构的旋转期间旋转或停止期间。

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