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1. 发明授权

US5671470A 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：US5671470A
公开(公告)日：1997-09-23
申请号：US553776
申请日：1995-10-23
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。

2. 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。

3. 发明授权

US5758235A 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：US5758235A
公开(公告)日：1998-05-26
申请号：US788997
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
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 with a toner container rotatable to a toner replenishing position. The toner container has a toner outlet in a wall of the container. This outlet includes an edge portion that is downstream in the direction of the rotation of the container that is jutted towards the center of toner container rotation which is inside the toner container. This inwardly jutted edge portion of the toner outlet provides a toner outlet profile having an edge that is lower than the other edge of the toner outlet in the direction of toner container rotation so that the lower edge does not engage into contact with a toner inlet on a wall of a developing chamber of a developing device until after the toner outlet is in a position overlapping at least most of the toner inlet. The toner container can further be provided with an internal plate mounted to pivot from a position where the plate extends along an inner surface of the toner container which is spaced from but generally faces the toner outlet and a position where the swinging end of the plate pivots closer to the toner outlet without blocking it so as to help expel any toner that may have become compacted near the toner outlet. A drive device is provided to rotate the container into a position in which it provides toner to the developing chamber of the development unit from the toner outlet of the toner container via the overlapped toner inlet with the plate swinging to its second position to insure that toner that may be massed near the outlet portion can be expelled.
摘要翻译：显影装置设置有可旋转到调色剂补充位置的调色剂容器。调色剂容器在容器的壁中具有调色剂出口。该出口包括边缘部分，该边缘部分沿容器旋转方向向下延伸，该方向朝着调色剂容器内部的调色剂容器旋转中心突出。调色剂出口的向内突出的边缘部分提供调色剂出口轮廓，其具有沿调色剂容器旋转方向低于调色剂出口的另一边缘的边缘，使得下边缘不与调色剂入口接合显影装置的显影室的壁直到调色剂出口处于至少大部分调色剂入口重叠的位置。调色剂容器还可以设置有内部板，该内部板安装成从板的沿着调色剂容器的内表面延伸的位置枢转，该位置与调色剂出口间隔开并且大致面对调色剂出口，并且其中摇动的端部枢转的位置更接近调色剂出口而不阻塞，以帮助排出可能在调色剂出口附近压实的任何调色剂。提供驱动装置以将容器旋转到其中通过重叠的调色剂入口从调色剂容器的调色剂出口向显影单元的显影室提供调色剂的位置，其中板旋转到其第二位置，以确保调色剂在出口部分附近可能会被挤出。

4. 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。

5. 发明授权

US5850586A Rotary developing device for an image forming apparatus 失效
公开(公告)号：US5850586A
公开(公告)日：1998-12-15
申请号：US980339
申请日：1997-11-28
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： In an image forming apparatus, a rotary developing device has a developing unit in which a plurality of developing chambers are arranged around an axis of rotation. The developing unit is rotated about the axis to bring one of the chambers to a developing position where an image carrier is located. In each of the chambers, part of a developer removed by a doctor blade is received by a guide and then released from the guide into the chamber. This part of the developer is agitated in the vertical direction together with the developer existing in the chamber by the rotation of the device. As a result, the developer is agitated and charged in a desirable manner.

6. 发明授权

US5761576A Image forming apparatus for supplying power to members of a rotary developing device 失效
标题翻译：用于向旋转显影装置的构件供电的图像形成装置
公开(公告)号：US5761576A
公开(公告)日：1998-06-02
申请号：US717725
申请日：1996-09-23
申请人： Kazuyuki Sugihara , Tomoji Ishikawa , Katsuhiro Kosuge
发明人： Kazuyuki Sugihara , Tomoji Ishikawa , Katsuhiro Kosuge
IPC分类号： G03G21/00 , G03G15/01 , G03G15/06 , G03G15/08 , G03G21/16 , G03G15/00
CPC分类号： G03G15/0126 , G03G2215/0177
摘要： An image forming apparatus of the type having a rotary developing device or revolver, and a power supply device. When the revolver is rotated to bring one of its developing sections to a developing position, the end of a developing roller disposed in the developing section faces a bracket mounted on a rear wall included in the apparatus body. A retractable rod-like terminal is mounted on the bracket and constantly biased by a spring. A bias for development is applied from a bias circuit to the developing roller via the retractable terminal.
摘要翻译：一种具有旋转显影装置或旋转枪的类型的图像形成装置和电源装置。当旋转左轮手枪以使其一个显影部分到显影位置时，设置在显影部分中的显影辊的端部面向安装在包括在装置主体中的后壁上的支架。可伸缩的杆状端子安装在支架上并由弹簧持续偏置。用于显影的偏压通过可伸缩端子从偏置电路施加到显影辊。

7. 发明授权

US5617198A Image forming apparatus having rotary developing device 失效
标题翻译：具有旋转显影装置的图像形成装置
公开(公告)号：US5617198A
公开(公告)日：1997-04-01
申请号：US425985
申请日：1995-04-20
申请人： Tomoji Ishikawa , Kazuyuki Sugihara , Katsuhiro Kosuge
发明人： Tomoji Ishikawa , Kazuyuki Sugihara , Katsuhiro Kosuge
IPC分类号： G03G15/00 , G03G15/01 , G03G15/08
CPC分类号： G03G15/0126 , G03G15/0856 , G03G15/0872 , G03G15/0893 , G03G15/0896 , G03G2215/0177
摘要： In an image forming apparatus, a rotary developing unit or revolver is loaded with a removable black developer container at the center thereof. The container is formed with a toner outlet. A receptacle assigned to black toner is provided at the end of the axis of the revolver and formed with a toner inlet. The receptacle constitutes a hopper portion. A supply roller is disposed in the receptacle. A screw conveyor extends out from a black developing chamber defined in the revolver into a communication chamber which communicates the receptacle to the developing chamber. A shutter is located at the loner inlet of the receptacle and rotatable due to its own weight while the revolver is in rotation. When more than a predetermined number of printings are produced by use of the black developing chamber, printing is interrupted. Then, the revolver is rotated to transfer the toner from the container to the hopper portion. The revolver may be rotated every time a single printing is produced.
摘要翻译：在图像形成装置中，旋转显影单元或左轮手枪在其中心装有可拆卸的黑色显影剂容器。容器形成有调色剂出口。分配给黑色调色剂的容器设置在转轮轴线的端部，并形成有调色剂入口。容器构成料斗部分。供应辊设置在容器中。螺旋输送机从限定在转轮中的黑色显影室延伸到连通室，该连通室将容器连通到显影室。快门位于容器的隔离入口处，并且当旋转轮旋转时由于其自重而可旋转。当通过使用黑色显影室产生超过预定数量的印刷时，打印被中断。然后旋转左轮手枪将调色剂从容器转移到料斗部分。每次制作单张时，左轮手枪都可以旋转。

8. 发明授权

US5787328A 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装置
公开(公告)号：US5787328A
公开(公告)日：1998-07-28
申请号：US784532
申请日：1997-01-17
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 , G03G15/06
CPC分类号： G03G15/0126 , G03G15/0822 , G03G2215/0177 , G03G2215/018
摘要： In an image forming apparatus, a rotary developing device has a developing unit in which a plurality of developing chambers are arranged around an axis of rotation. The developing unit is rotated about the axis to bring one of the chambers to a developing position where an image carrier is located. In each of the chambers, part of a developer removed by a doctor blade is received by a guide and then released from the guide into the chamber. This part of the developer is agitated in the vertical direction together with the developer existing in the chamber by the rotation of the device. As a result, the developer is agitated and charged in a desirable manner.
摘要翻译：在图像形成装置中，旋转显影装置具有显影单元，其中多个显影室围绕旋转轴线布置。显影单元围绕轴线旋转以使其中一个室到达图像载体所在的显影位置。在每个室中，通过刮刀移除的显影剂的一部分被引导件接收，然后从引导件释放到室中。显影剂的这一部分通过装置的旋转与存在于室中的显影剂一起在垂直方向上搅动。结果，以希望的方式搅拌和充电显影剂。

9. 发明授权

US5646721A Image forming apparatus for supplying power to members of a rotary developing device 失效
标题翻译：用于向旋转显影装置的构件供电的图像形成装置
公开(公告)号：US5646721A
公开(公告)日：1997-07-08
申请号：US455622
申请日：1995-05-31
申请人： Kazuyuki Sugihara , Tomoji Ishikawa , Katsuhiro Kosuge
发明人： Kazuyuki Sugihara , Tomoji Ishikawa , Katsuhiro Kosuge
IPC分类号： G03G21/00 , G03G15/01 , G03G15/06 , G03G15/08 , G03G21/16 , G03G15/00
CPC分类号： G03G15/0126 , G03G2215/0177
摘要： An image forming apparatus of the type having a rotary developing device or revolver, and a power supply device. When the revolver is rotated to bring one of its developing sections to a developing position, the end of a developing roller disposed in the developing section faces a bracket mounted on a rear wall included in the apparatus body. A retractable rod-like terminal is mounted on the bracket and constantly biased by a spring. A bias for development is applied from a bias circuit to the developing roller via the retractable terminal.
摘要翻译：一种具有旋转显影装置或旋转枪的类型的图像形成装置和电源装置。当旋转左轮手枪以使其一个显影部分到显影位置时，设置在显影部分中的显影辊的端部面向安装在包括在装置主体中的后壁上的支架。可伸缩的杆状端子安装在支架上并由弹簧持续偏置。用于显影的偏压通过可伸缩端子从偏置电路施加到显影辊。

10. 发明授权

US5552877A Image forming apparatus with controlled drive for accurately positioning developing sections of a rotary developing device 失效
标题翻译：具有受控驱动的图像形成装置，用于精确地定位旋转显影装置的显影部分
公开(公告)号：US5552877A
公开(公告)日：1996-09-03
申请号：US424046
申请日：1995-04-19
申请人： Tomoji Ishikawa , Kazuyuki Sugihara , Katsuhiro Kosuge
发明人： Tomoji Ishikawa , Kazuyuki Sugihara , Katsuhiro Kosuge
IPC分类号： G03G15/00 , G03G15/01 , G03G15/08 , G03G21/16
CPC分类号： G03G15/0126 , G03G15/0896 , G03G2215/0177
摘要： An image forming apparatus having a rotary developing device or revolver in which a plurality of developing sections are defined. The revolver is rotated over a target position by a first drive source, then returned by a second drive source producing a moment acting in the opposite direction, such as due to the drive of one of the developing sections, and then positively stopped by a positioning mechanism. The revolver is, therefore, accurately positioned at the target position without regard to, for example, irregularities in a motor for driving the revolver.
摘要翻译：一种具有旋转显影装置或左轮手枪的图像形成装置，其中限定了多个显影部分。左轮手枪通过第一驱动源旋转在目标位置上，然后由第二驱动源返回，产生沿相反方向作用的力矩，例如由于其中一个显影部分的驱动，然后由定位机制。因此，左轮手枪被精确地定位在目标位置，而不考虑例如用于驱动左轮手枪的电动机的不规则性。

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