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1. 发明授权

US5390009A Developing device 失效
标题翻译：开发设备
公开(公告)号：US5390009A
公开(公告)日：1995-02-14
申请号：US189677
申请日：1994-02-01
申请人： Akira Nakakuma , Yasuyuki Fukunaga
发明人： Akira Nakakuma , Yasuyuki Fukunaga
IPC分类号： G03G15/01 , G03G15/08 , G03G15/09 , G03G15/06
CPC分类号： G03G15/0126 , G03G15/0898 , G03G15/0942
摘要： A movable frame is mounted on a stationary frame so as to be reciprocatingly moved in a predetermined direction by a moving means. The movable frame is equipped with a plurality of developing mechanisms which may be selectively located at a developing position by the motion of the movable frame to carry out multi-color developing. The developing mechanisms are urged toward a rotary drum. In order to prevent the developing agent from scattering, side sealing pieces are provided near the non-developing operation region on both sides of a sleeve member in a magnetic brush mechanism of each developing mechanism. A toner container unit including toner containers and toner feeding means is rotatably supported by the stationary frame. The toner feeding means includes a extensible and contractible means which is detachably coupled to the developing mechanism. The toner container unit is selectively brought to a predetermined fixed position relative to the developing mechanism and to a predetermined retracted position turned in a direction to separate away from the developing mechanism.
摘要翻译：可移动框架安装在固定框架上，以便通过移动装置沿预定方向往复运动。可移动框架配备有多个显影机构，其可以通过可移动框架的运动选择性地位于显影位置，以进行多色显影。显影机构被推向旋转鼓。为了防止显影剂飞散，在每个显影机构的磁刷机构中的套筒构件的两侧的非显影操作区域附近设置侧密封片。包括调色剂容器和调色剂供给装置的调色剂容器单元由固定框架可旋转地支撑。调色剂供给装置包括可拆卸地联接到显影机构的可伸缩装置。调色剂容器单元选择性地被引导到相对于显影机构的预定的固定位置，并且转动到在远离显影机构分离的方向上转动的预定缩回位置。

2. 发明授权

US5182584A Multicolor developing device with improved movable frame arrangement 失效
标题翻译：具有改进的可移动框架布置的多媒体开发设备
公开(公告)号：US5182584A
公开(公告)日：1993-01-26
申请号：US617770
申请日：1990-11-26
申请人： Yasuyuki Fukunaga , Hideki Kita , Akira Nakakuma , Toru Taniguchi , Hidehiro Fukui , Yoshinobu Takemura
发明人： Yasuyuki Fukunaga , Hideki Kita , Akira Nakakuma , Toru Taniguchi , Hidehiro Fukui , Yoshinobu Takemura
IPC分类号： G03G15/01 , G03G15/08
CPC分类号： G03G15/0126 , G03G15/0896
摘要： A multicolor developing device having a plurality of developing mechanisms for executing developing with differrent colors. The developing device includes a stationary frame member, a movable frame member mounted on the stationary frame member to reciprocally move in a predetermined direction, and a moving device for reciprocally moving the movable frame member. The plurality of developing mechanisms are mounted on the movable frame member and maintaining a distance in the said predetermined direction. Any one of the plurality of developing mechanisms is selectively positioned at a developing zone depending on the movement of the movable frame member. The moving device includes a screw device having a threaded shaft extending in the predetermined direction and a nut engaged with the threaded shaft, a stepping motor for rotating the threaded shaft, and a nonexcited operation-type electromagnetic brake. A pair of racks are disposed on the stationary frame member and maintain a distance in the lateral direction, and the movable frame member is provided with a rotary shaft extending in the lateral direction and a pair of pinions fitted to the rotary shaft, the pair of pinions being engaged with the pair of racks. Each of the developing mechanisms is provided with a pair of distance-setting rollers which are brought into resilient contact with a rotary drum in order to accomplish the positioning of the developing mechanism relative to the rotary drum.

3. 发明授权

US5408303A Positioning mechanism for a cleaning device provided in an image forming apparatus 失效
标题翻译：设置在图像形成装置中的清洁装置的定位机构
公开(公告)号：US5408303A
公开(公告)日：1995-04-18
申请号：US982310
申请日：1992-11-27
申请人： Yasuyuki Fukunaga , Hideki Kita , Akira Nakakuma , Toshimitsu Takeuchi
发明人： Yasuyuki Fukunaga , Hideki Kita , Akira Nakakuma , Toshimitsu Takeuchi
IPC分类号： G03G21/00
CPC分类号： G03G21/0029 , G03G21/007
摘要： A housing accommodating a fur brush and a cleaning blade is pivoted to a position close to a photoconductive drum and at another position far from the photoconductive drum by positioning a positioning shaft. When the positioning shaft is slid for moving the positioning shaft away from a photoconductive drum, an operating member attached to the positioning shaft is put into contract with a pivoting lever to raise the pivoting lever away from the photoconductive drum. Since the pivoting lever is attached to a blade shaft, a cleaning blade attached to the blade shaft is pivoted away from the photoconductive drum.
摘要翻译：容纳毛刷和清洁刀片的壳体通过定位定位轴而枢转到靠近感光鼓的位置和远离感光鼓的另一位置。当定位轴滑动以使定位轴远离感光鼓时，附接到定位轴的操作构件与枢转杆收缩，以使枢转杆远离感光鼓。由于枢转杆附接到叶片轴，附接到叶片轴的清洁刀片远离感光鼓转动。

4. 发明授权

US5311260A Developing device 失效
标题翻译：开发设备
公开(公告)号：US5311260A
公开(公告)日：1994-05-10
申请号：US845319
申请日：1992-03-03
申请人： Akira Nakakuma , Yasuyuki Fukunaga
发明人： Akira Nakakuma , Yasuyuki Fukunaga
IPC分类号： G03G15/01 , G03G15/08 , G03G15/09 , G03G15/06
CPC分类号： G03G15/0126 , G03G15/0898 , G03G15/0942
摘要： A movable frame is mounted on a stationary frame so as to be reciprocatingly moved in a predetermined direction by a moving means. The movable frame is equipped with a plurality of developing mechanisms which may be selectively located at a developing position by the motion of the movable frame to carry out multi-color developing. The developing mechanisms are urged toward a rotary drum. In order to prevent the developing agent from scattering, side sealing pieces are provided near the non-developing operation region on both sides of a sleeve member in a magnetic brush mechanism of each developing mechanism. A toner container unit including toner containers and toner feeding means is rotatably supported by the stationary frame. The toner feeding means includes a extensible and contractible means which is detachably coupled to the developing mechanism. The toner container unit is selectively brought to a predetermined fixed position relative to the developing mechanism and to a predetermined retracted position turned in a direction to separate away from the developing mechanism.
摘要翻译：可移动框架安装在固定框架上，以便通过移动装置沿预定方向往复运动。可移动框架配备有多个显影机构，其可以通过可移动框架的运动选择性地位于显影位置，以进行多色显影。显影机构被推向旋转鼓。为了防止显影剂飞散，在每个显影机构的磁刷机构中的套筒构件的两侧的非显影操作区域附近设置侧密封片。包括调色剂容器和调色剂供给装置的调色剂容器单元由固定框架可旋转地支撑。调色剂供给装置包括可拆卸地联接到显影机构的可伸缩装置。调色剂容器单元选择性地被引导到相对于显影机构的预定的固定位置，并且转动到在远离显影机构分离的方向上转动的预定缩回位置。

5. 发明授权

US5379096A Developing device 失效
标题翻译：开发设备
公开(公告)号：US5379096A
公开(公告)日：1995-01-03
申请号：US189678
申请日：1994-02-01
申请人： Akira Nakakuma , Yasuyuki Fukunaga
发明人： Akira Nakakuma , Yasuyuki Fukunaga
IPC分类号： G03G15/01 , G03G15/08 , G03G15/09 , G03G15/06
CPC分类号： G03G15/0126 , G03G15/0898 , G03G15/0942
摘要： A movable frame is mounted on a stationary frame so as to be reciprocatingly moved in a predetermined direction by a moving means. The movable frame is equipped with a plurality of developing mechanisms which may be selectively located at a developing position by the motion of the movable frame to carry cut multi-color developing. The developing mechanisms are urged toward a rotary drum. In order to prevent the developing agent from scattering, side sealing pieces are provided near the non-developing operation region on both sides of a sleeve member in a magnetic brush mechanism of each developing mechanism. A toner container unit including toner containers and toner feeding means is rotatably supported by the stationary frame. The toner feeding means includes a extensible and contractible means which is detachably coupled to the developing mechanism. The toner container unit is selectively brought to a predetermined fixed position relative to the developing mechanism and to a predetermined retracted position turned in a direction to separate away from the developing mechanism.
摘要翻译：可移动框架安装在固定框架上，以便通过移动装置沿预定方向往复运动。可移动框架配备有多个显影机构，其可以通过可移动框架的运动选择性地位于显影位置，以进行切割多色显影。显影机构被推向旋转鼓。为了防止显影剂飞散，在每个显影机构的磁刷机构中的套筒构件的两侧的非显影操作区域附近设置侧密封片。包括调色剂容器和调色剂供给装置的调色剂容器单元由固定框架可旋转地支撑。调色剂供给装置包括可拆卸地联接到显影机构的可伸缩装置。调色剂容器单元选择性地被引导到相对于显影机构的预定的固定位置，并且转动到在远离显影机构分离的方向上转动的预定缩回位置。

6. 发明授权

US06314262B1 Toner supply system and toner cartridge 有权
标题翻译：墨粉供应系统和墨粉盒
公开(公告)号：US06314262B1
公开(公告)日：2001-11-06
申请号：US09604533
申请日：2000-06-27
申请人： Hisashi Kunihiro , Akira Nakakuma , Fumito Mizoguchi , Kenichi Nagata , Yoshiki Ichikawa
发明人： Hisashi Kunihiro , Akira Nakakuma , Fumito Mizoguchi , Kenichi Nagata , Yoshiki Ichikawa
IPC分类号： G03G1508
CPC分类号： G03G15/0886 , G03G15/0855 , G03G15/0865 , G03G15/0867 , G03G2215/0673 , G03G2215/0678 , G03G2215/0687 , G03G2215/0692 , Y10S222/01
摘要： A shutoff lid of a toner hopper is formed with locking elements for locking the lid and a fixing element for fixing the locking elements. In the front face of a bottle slider, a pair of projected abutments abutting the fixing element are arranged on the left and right sides and a pair of switching portions for moving the locking elements are formed. The rear face of the fixing element is shaped with a stepped face which corresponds to the projected abutments. As the bottle slider moves forwards, each projected abutment abuts the stepped face of the fixing element and moves the fixing element, to thereby cancel restraint of the fixing element on the locking elements. A further advancement of the bottle slider causes the locking elements to move and release the locked state. If a projected abutment does not match the fixing element, the fixing element cannot be moved thus making release of the lock impossible. On the other hand, when the bottle slider has reached the toner supply position, contact portions of the releasing elements oppose a guide frame. When the releasing element is rotated about bridges by holding its handle, the contact portions abut the guide frame and function as the fulcrum so as to act a leverage force on the bridges, whereby it is possible to break off the bridges by a weak force. Thus, the releasing element is separated from the bottle slider and then a sealing element is peeled off.
摘要翻译：调色剂料斗的关闭盖形成有用于锁定盖的锁定元件和用于固定锁定元件的固定元件。在瓶滑块的前表面上，在左右两侧配置有抵靠固定元件的一对突出的抵接部，形成有用于移动锁定元件的一对切换部。固定元件的后表面形成有对应于突出的基台的台阶面。当瓶滑块向前移动时，每个突出的抵接件邻接固定元件的台阶面并移动固定元件，从而消除固定元件对锁定元件的限制。瓶滑块的进一步推进使得锁定元件移动并释放锁定状态。如果突出的支座与固定元件不匹配，则固定元件不能移动，从而不能解除锁定。另一方面，当瓶滑块已经到达调色剂供应位置时，释放元件的接触部分与引导框架相对。当释放元件通过握持其手柄绕桥转动时，接触部分抵靠引导框架并用作支点，以便对桥梁施加杠杆作用力，从而可以通过弱力来破坏桥梁。因此，释放元件与瓶滑块分离，然后剥离密封元件。

7. 发明授权

US4862218A Support and adjusting apparatus for an optical unit 失效
标题翻译：用于光学单元的支撑和调节装置
公开(公告)号：US4862218A
公开(公告)日：1989-08-29
申请号：US101921
申请日：1987-09-28
申请人： Arihiro Tsunoda , Kikunosuke Tsuji , Akira Nakakuma , Tetsuya Matsushita
发明人： Arihiro Tsunoda , Kikunosuke Tsuji , Akira Nakakuma , Tetsuya Matsushita
IPC分类号： G03B27/52 , G03G15/04
CPC分类号： G03G15/04 , G03B27/527 , G03G15/0435
摘要： A supporting apparatus for optical unit having an optical unit to expose an original set on a contact glass, a reciprocatingly movable supporting frame body equipped with the optical unit, a sliding member provided on both ends of the supporting frame body, and an eccentric cam mechanism provided on one end of the supporting frame body to vertically adjust one of the sliding member. By operating the eccentric cam mechanism, one end of the supporting frame body can be adjusted to a desired height so as to enable to adjust horizontality of the optical unit mounted on the supporting frame body. Furthermore, because a large gap is provided between a pair of sliding members provided on one end of each supporting frame body and the ends of the two supporting frame bodies where the sliding members are mounted are mutually disposed at reverse side, both supporting frame bodies can be caused to come as close at their home positions as possible.
摘要翻译：一种用于光学单元的支撑装置，具有用于露出接触玻璃上的原稿组的光学单元，配备有光学单元的往复运动支撑框体，设置在支撑框体两端的滑动构件和偏心凸轮机构设置在所述支撑框体的一端，以竖直地调节所述滑动构件中的一个。通过操作偏心凸轮机构，可以将支撑框体的一端调整到期望的高度，以便能够调节安装在支撑框体上的光学单元的水平度。此外，由于在设置在每个支撑框体的一端的一对滑动构件和安装有滑动构件的两个支撑框体的端部之间设置有大的间隙，所以两个支撑框架体可相互配置要尽可能靠近自己的位置。

8. 发明申请

US20050117921A1 Remaining toner detection apparatus and image forming apparatus provided with same 有权
标题翻译：剩余墨粉检测装置和具有该墨粉检测装置的图像形成装置
公开(公告)号：US20050117921A1
公开(公告)日：2005-06-02
申请号：US10995162
申请日：2004-11-24
申请人： Yasuyuki Ishiguro , Akira Nakakuma , Hideaki Kurimoto , Kiyofumi Morimoto
发明人： Yasuyuki Ishiguro , Akira Nakakuma , Hideaki Kurimoto , Kiyofumi Morimoto
IPC分类号： G01F23/28 , G03G15/01 , G03G15/08 , G03G21/10
CPC分类号： G03G15/0855 , G03G15/0856 , G03G15/0862 , G03G2215/0894
摘要： A pair of indentations is formed with a vertical spacing on a side wall of a toner cartridge, respective translucent windows are arranged on opposing upper and lower surfaces of the indentations protruding into the toner cartridge, and a light-emitting element and a light-receiving element of a remaining toner sensor are inserted to the indentations such that the light-emitting element and the light-receiving element of the remaining toner sensor face each other via the translucent windows of the indentations. When there is sufficient toner remaining in the toner cartridge, there is toner in the space between the transparent plates, and the space between a light-emitting diode and a phototransistor is blocked such that light is not incident on the phototransistor, whereas when there is little toner remaining in the toner cartridge, there is no toner in the space between the transparent plates, and the light is incident on the phototransistor via the space between the light-emitting diode and the photoresistor.
摘要翻译：在调色剂盒的侧壁上形成有一个垂直间隔的一对凹口，在突出到调色剂盒中的凹槽的相对的上表面和下表面上设置有各自的透光窗，并且发光元件和光接收剩余调色剂传感器的元件被插入到凹陷中，使得剩余调色剂传感器的发光元件和光接收元件经由凹陷的半透明窗口彼此面对。当墨粉盒中存在足够的墨粉时，透明板之间的空间中存在调色剂，并且阻挡发光二极管和光电晶体管之间的空间，使得光不会入射到光电晶体管上，而当存在残留在调色剂盒中的少量调色剂，透明板之间的空间中没有调色剂，并且光通过发光二极管和光敏电阻之间的空间入射到光电晶体管上。

9. 发明授权

US06192212B1 Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US06192212B1
公开(公告)日：2001-02-20
申请号：US09492384
申请日：2000-01-27
申请人： Hisashi Kunihiro , Takahiro Kimura , Akira Nakakuma
发明人： Hisashi Kunihiro , Takahiro Kimura , Akira Nakakuma
IPC分类号： G03G2110
CPC分类号： G03G21/105
摘要： In image forming, the ratio of foreign substances mixed in the recycled toner which is removed from the photoreceptor drum surface by means of the cleaning device is computed as one of the characteristics of the recycled toner, based on the paper size, the image area and the transfer efficiency. If the recycled toner has a high ratio of foreign substances mixed therein and is determined to have a low quality, collection of the recycled toner into the developing unit is temporarily interrupted and a fixed amount of toner is conveyed from the developing unit to the cleaning device so as to improve the quality of the recycled toner. In this way, recycled toner of a low quality is prohibited from being used for subsequent image forming operations so as to prevent degradation of the image quality.
摘要翻译：在图像形成中，通过清洁装置将从感光鼓表面除去的再循环调色剂中混合的异物的比例作为回收调色剂的特性之一，根据纸张尺寸，图像面积和转移效率。如果回收的调色剂在其中混合的异物的比例高，并且被确定为具有低质量，则将再循环的调色剂收集到显影单元中暂时中断，并且固定量的调色剂从显影单元传送到清洁装置以提高再生调色剂的质量。以这种方式，低质量的再生调色剂被禁止用于随后的图像形成操作，以防止图像质量的劣化。

10. 发明授权

US5296328A Magnetic brush development process 失效
标题翻译：磁刷开发过程
公开(公告)号：US5296328A
公开(公告)日：1994-03-22
申请号：US738554
申请日：1991-07-31
申请人： Kazuo Fuji , Akira Nakakuma , Naruo Yabe , Akihiro Watanabe , Yoshihisa Kuramae , Toshio Nishio , Noriaki Tsubota , Masahiko Kubo , Kazuhisa Edahiro
发明人： Kazuo Fuji , Akira Nakakuma , Naruo Yabe , Akihiro Watanabe , Yoshihisa Kuramae , Toshio Nishio , Noriaki Tsubota , Masahiko Kubo , Kazuhisa Edahiro
IPC分类号： G03G13/09 , G03G15/09
CPC分类号： G03G13/09 , G03G15/09
摘要： The present invention provides a magnetic brush developing method using a two-component developer, characterized in that the development is carried out under such conditions that at the position where the sliding contact of the magnetic brush with the surface of the photosensitive material drum terminates, the following requirement is satisfied:P.sub.x .gtoreq.430, orP.sub.x
摘要翻译：本发明提供一种使用双组分显影剂的磁刷显影方法，其特征在于，在磁刷与感光鼓的表面的滑动接触终止的位置，满足以下要求：Px> = 430或Px <430且Py> = -Px + 800，其中Px表示在显影套筒表面上沿切线方向作用的磁力（Gauss），Py表示磁力（高斯）在显影套筒的表面上沿法线方向作用。

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