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公开(公告)号：US08666288B2
公开(公告)日：2014-03-04
申请号：US13137522
申请日：2011-08-24
CPC分类号： G03G15/09 , G03G15/0877 , G03G15/0891 , G03G15/0893
摘要： A developing device in the embodiment includes: a developer carrier that carries a two-component developer, moves the surface, and supplies the toner to a latent image on a surface of a latent image carrier; a first conveying member that conveys the developer in a first conveying path; a second conveying member that conveys the developer in a second conveying path; and a developer passing unit that conveys upward the developer which has reached at a conveying-direction posterior end of the second conveying path and passes the developer to the first conveying path. The developer passing unit includes a plurality of pushing members that push up the developer. The developer can pass through from upper surfaces of the pushing members to lower surfaces of the pushing members.
摘要翻译： 本实施例中的显影装置包括：承载双组分显影剂的显影剂载体，使表面移动，并将调色剂供应到潜像载体的表面上的潜像; 在第一传送路径中传送显影剂的第一传送部件; 第二输送构件，其在第二输送路径中输送显影剂; 以及显影剂通过单元，其向上传送已经到达第二输送路径的输送方向后端的显影剂，并将显影剂通过到第一输送路径。 显影剂通过单元包括向上推动显影剂的多个推压构件。 显影剂可以从推动构件的上表面穿过推动构件的下表面。
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公开(公告)号：US20120057890A1
公开(公告)日：2012-03-08
申请号：US13137618
申请日：2011-08-30
IPC分类号： G03G15/08
CPC分类号： G03G15/0879
摘要： A development device includes a development portion, to develop a latent image formed on a latent image carrier with developer, disposed close to the latent image carrier; a developer agitation container to agitate the developer, provided separately from the development portion; a transport system connecting the development portion and the developer agitation container, through which the developer is transported from the developer agitation container to the development portion by air; and a developer retainer to temporarily retain the developer, disposed downstream from the transport system, to which the developer remaining in the transport system escapes.
摘要翻译： 显影装置包括显影部分，用于在靠近潜像载体的位置显影形成在具有显影剂的潜像载体上的潜像; 用于搅拌与显影部分开设置的显影剂的显影剂搅拌容器; 连接显影剂部分和显影剂搅拌容器的输送系统，显影剂通过该输送系统通过空气从显影剂搅拌容器输送到显影部分; 以及显影剂保持器，用于临时保持设置在运输系统下游的显影剂，保持在运输系统中的显影剂逸出。
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公开(公告)号：US20110229207A1
公开(公告)日：2011-09-22
申请号：US13046000
申请日：2011-03-11
IPC分类号： G03G15/08
CPC分类号： G03G15/0822 , G03G2215/0822 , G03G2215/0827
摘要： A developing device includes a developer supply part and a developer collecting part, wherein the developer supply part has a developer inlet port for introducing a developer supplied from a reservoir into the developer supply part and a developer extraction port provided on the side of the developer inlet port to remove a portion of the developer so as to define a quantity of the developer to be introduced in the developer supply part, and wherein the developer extraction port and the developer collecting part are connected to the reservoir.
摘要翻译： 显影装置包括显影剂供应部分和显影剂收集部分，其中显影剂供应部分具有用于将从储存器供应的显影剂引入显影剂供应部分的显影剂入口和设置在显影剂入口侧的显影剂提取口 端口以去除一部分显影剂，以便限定待引入显影剂供应部件中的一定量的显影剂，并且其中显影剂提取口和显影剂收集部分连接到储存器。
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公开(公告)号：US07158731B2
公开(公告)日：2007-01-02
申请号：US10916601
申请日：2004-08-12
申请人： Yasuo Takuma , Kaoru Kataoka
发明人： Yasuo Takuma , Kaoru Kataoka
IPC分类号： G03G15/08
CPC分类号： G03G15/0849
摘要： An image forming apparatus includes a toner concentration detector for detecting the toner concentration within a two-component developing unit, a toner supply unit for supplying a toner into the developing unit, a storage unit for sequentially holding and updating a history of a toner supply operation for a certain period of time, and a toner concentration control unit for determining the time of the toner supply operation by the toner supply unit, based on information stored in the storage unit and a difference between an output value of the toner concentration detector and a reference value, and maintaining the toner concentration constant.
摘要翻译： 图像形成装置包括用于检测双组分显影单元中的调色剂浓度的调色剂浓度检测器，用于向显影单元中供应调色剂的调色剂供应单元，用于顺序地保持和更新调色剂供应操作的历史的存储单元 以及调色剂浓度控制单元，用于基于存储在存储单元中的信息确定调色剂供应单元的调色剂供给操作的时间，以及调色剂浓度检测器的输出值与 参考值，并保持调色剂浓度恒定。
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公开(公告)号：US5923933A
公开(公告)日：1999-07-13
申请号：US23462
申请日：1998-02-13
申请人： Masayasu Anzai , Tsuneaki Kawanishi , Yoshitaka Fujinuma , Hiroyoshi Matsumoto , Yasuo Takuma , Hisao Okada , Masayuki Ainoya , Takashi Suzuki , Yuichiro Suzuki , Tomonari Hokkyo , Koji Kato , Katsuya Kawai , Tsutomu Nakagawa
发明人： Masayasu Anzai , Tsuneaki Kawanishi , Yoshitaka Fujinuma , Hiroyoshi Matsumoto , Yasuo Takuma , Hisao Okada , Masayuki Ainoya , Takashi Suzuki , Yuichiro Suzuki , Tomonari Hokkyo , Koji Kato , Katsuya Kawai , Tsutomu Nakagawa
IPC分类号： G03G15/09
CPC分类号： G03G15/09 , G03G2215/0609 , G03G2215/0648
摘要： A uniform image is obtained by matching the sliding friction force, the moving speed and the developing agent in a developing region of two developing rollers and an electric characteristic of a photosensitive body used for image development. Two developing rollers rotating in directions opposite to each other are used, the moving direction of the first developing roller being opposite to the moving direction of the photosensitive body, and a circumferential speed ratio of a circumferential speed of the first developing roller to a circumferential speed of the photosensitive body is within a rage of 0.5 to 2.5; and the moving direction of the second developing roller is equal to the moving direction of the photosensitive body, and a circumferential speed ratio of a circumferential speed of the second developing roller to a circumferential speed of the photosensitive body is within a range of 1.5 to 3.5. A ratio of the sliding friction force between a magnetic brush for developing agent and the photosensitive body formed in the first developing roller and the sliding friction force between a magnetic brush for developing agent and the photosensitive body formed in the second developing roller is within a range of 0.9 to 2.1.
摘要翻译： 通过匹配两个显影辊的显影区域中的滑动摩擦力，移动速度和显影剂以及用于图像显影的感光体的电特性来获得均匀的图像。 使用沿彼此相反的方向旋转的两个显影辊，第一显影辊的移动方向与感光体的移动方向相反，并且第一显影辊的圆周速度与圆周速度的圆周速度比 的感光体在0.5〜2.5的范围内; 并且第二显影辊的移动方向等于感光体的移动方向，并且第二显影辊的圆周速度与感光体的圆周速度的圆周速度比在1.5至3.5的范围内 。 用于显影剂的磁刷和形成在第一显影辊中的感光体之间的滑动摩擦力与显影剂用磁刷与形成在第二显影辊中的感光体之间的滑动摩擦力之间的滑动摩擦力的比率在一定范围内 为0.9至2.1。
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公开(公告)号：US5907755A
公开(公告)日：1999-05-25
申请号：US73768
申请日：1998-05-07
申请人： Yasuo Takuma , Yoshitaka Fujinuma , Masayasu Anzai , Hisao Okada
发明人： Yasuo Takuma , Yoshitaka Fujinuma , Masayasu Anzai , Hisao Okada
CPC分类号： G03G13/08 , G03G13/09 , G03G2215/0648
摘要： A predetermined mathematical formula, which defines an occurrence degree of an image defect where the toner layer is thinned or no toner image is formed, is set up, which is valid for a developing device including a reverse turn developer carrier and a forward turn developer carrier. A difference between the total sum A of the values by the above formula showing the occurrence degree of the image defect on the forward turn developing roller and the total sum B of the values by the above formula showing the occurrence degree on the reverse turn developing roller, i.e., (A-B), is selected within a range of -0.56 to +0.5.
摘要翻译： 确定限定了调色剂层变薄或不形成调色剂图像的图像缺陷的发生程度的预定数学公式，其对于包括反转显影剂载体和正向转动显影剂载体的显影装置是有效的 。 表示前转显影辊上的图像缺陷的发生程度的上述公式的总和A与通过上述公式的值的总和B之间的差值表示反转显影辊的发生程度 ，即（AB）在-0.56至+0.5的范围内选择。
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37.发明授权Electrostatic recording apparatus with electrified cap and managing system thereof 失效带电气盖的静电记录装置及其管理系统
公开(公告)号：US5559578A
公开(公告)日：1996-09-24
申请号：US175867
申请日：1993-12-30
申请人： Takao Umeda , Toru Miyasaka , Osamu Namikawa , Isamu Komatsu , Tetsuya Nagata , Yasuo Takuma , Tatsuo Igawa
发明人： Takao Umeda , Toru Miyasaka , Osamu Namikawa , Isamu Komatsu , Tetsuya Nagata , Yasuo Takuma , Tatsuo Igawa
CPC分类号： G03G15/5037 , G03G15/0266 , G03G15/08 , G03G15/1655 , G03G15/55 , G03G15/553 , G03G15/75 , G03G15/752
摘要： An electrostatic recording apparatus and a management system thereof wherein the recording apparatus includes a photoconductor drum having a cap provided at an opening of the drum and a photoconductor sheet wound on a portion of the drum other than the opening, with the photoconductor drum being rotated. The cap is electrified and a capacitor is provided between the cap and a terminal and charged through the cap to maintain the cap in an electrified state. A potential of the terminal is equal to a ground potential or a potential approximating the ground potential. Further, a controller is provided for discharging the electrified electric charge of the cap in response to a discharge instruction. A managing system may be provided for judging the state of the electrostatic recording apparatus.
摘要翻译： 一种静电记录装置及其管理系统，其中记录装置包括具有设置在鼓的开口处的盖的感光鼓和缠绕在除开口之外的滚筒的一部分上的感光鼓，使感光鼓旋转。 盖子通电，并且在盖子和端子之间提供电容器并通过盖子充电以将盖子保持在带电状态。 端子的电位等于接地电位或接近地电位的电位。 此外，提供控制器，用于响应于放电指令而对盖的带电电荷进行放电。 可以提供用于判断静电记录装置的状态的管理系统。
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公开(公告)号：US5499086A
公开(公告)日：1996-03-12
申请号：US091181
申请日：1993-07-13
申请人： Junichi Matsuno , Shigeru Obata , Yasuo Takuma , Masato Miwa , Kazuo Uno
发明人： Junichi Matsuno , Shigeru Obata , Yasuo Takuma , Masato Miwa , Kazuo Uno
IPC分类号： G03G15/16
CPC分类号： G03G15/1635
摘要： A belt-type transfer device which includes an endless belt rotating in contact with a photosensitive drum, with the belt being electrically charged by a corona discharger in a region of contact between the belt and the drum. A plate is provided for shielding the belt from the corona discharging in a vicinity of an outlet of the contact area to reduce electrostatic traction forces between the drum and the sheet in a vicinity of the outlet. The corona discharger may be located near an inlet of the region of contact with respect to a center thereof or a dielectric or electrically conductive film may be provided on an inner surface of the corona discharger on the contact area outlet side to increase the electrical charge of the belt at the inlet and the central portion of the region of contact. A control system detects an electric resistance value of the sheet and changes the corona discharging intensity in accordance with a detected value to stabilize an electrical charge of the belt or, a control system may be provided for slightly lowering a moving speed of the sheet as compared with a rotational speed of the drum at an outlet of the region of contact. Surface roughness of the belt is 5 .mu.m or less and the sheet delivery guides are provided having a volume resistivity of 10.sup.11 .OMEGA.cm or less, which reduces electrical charge caused on the sheet due to frictional contact.
摘要翻译： 一种带式转印装置，其包括与感光鼓接触旋转的环形带，带在带和鼓之间的接触区域中被电晕放电器带电。 提供了一个板，用于屏蔽接触区域出口附近的电晕放电带，以减少在出口附近的鼓和片材之间的静电牵引力。 电晕放电器可以相对于其中心位于接触区域的入口附近，或者电介质或导电膜可以设置在接触区域出口侧的电晕放电器的内表面上，以增加电荷 输送带和接触区域的中心部分。 控制系统检测纸张的电阻值并根据检测值改变电晕放电强度以稳定带的电荷，或者可以提供控制系统以稍微降低纸张的移动速度 其具有在接触区域的出口处的滚筒的旋转速度。 带的表面粗糙度为5μm以下，并且提供体积电阻率为1011Ω·cm以下的片材输送导向器，这减小了由于摩擦接触导致的片材上的电荷。
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