公开(公告)号：US4669859A

公开(公告)日：1987-06-02

申请号：US477823

申请日：1983-03-22

申请人： Manabu Mochizuki ,  Itsuo Ikeda ,  Tsuneo Kurotori ,  Satoshi Shinguryo ,  Seiichi Miyakawa ,  Yuichi Kobayashi ,  Mitsuhiro Nonaka ,  Haruhiko Fukuda

发明人： Manabu Mochizuki ,  Itsuo Ikeda ,  Tsuneo Kurotori ,  Satoshi Shinguryo ,  Seiichi Miyakawa ,  Yuichi Kobayashi ,  Mitsuhiro Nonaka ,  Haruhiko Fukuda

IPC分类号： G03G15/06 ,  G03G15/10

CPC分类号： G03G15/065

摘要： A developing device for developing an electrostatic latent image formed on an imaging surface includes a developing electrode disposed opposite to the imaging surface and a control circuit for controlling the potential of the developing electrode. In one form, when the control circuit causes the developing electrode to be electrically floating, the upper limit of the voltage excursion is set at different levels as desired. In another form, the control circuit includes a sensor for sensing the potential of the imaging surface thereby allowing to carry out so-called fixed bias or auto-bias developing modes. In a further form, the mode of developing operation is automatically set depending upon the position of a pressure plate which is to be placed on an original for keeping the original in position during copying process.

摘要翻译： 用于显影形成在成像表面上的静电潜像的显影装置包括与成像表面相对设置的显影电极和用于控制显影电极的电位的控制电路。 在一种形式中，当控制电路使显影电极电浮动时，根据需要将电压偏移的上限设定在不同的水平。 在另一种形式中，控制电路包括用于感测成像表面的电位的传感器，从而允许执行所谓的固定偏压或自偏压显影模式。 在另一种形式中，显影操作的模式根据要放置在原稿上的压板的位置自动设定，以便在复印过程中将原稿保持在原位置。

公开(公告)号：US4310238A

公开(公告)日：1982-01-12

申请号：US181609

申请日：1980-08-27

申请人： Manabu Mochizuki ,  Seiichi Miyakawa ,  Taro Kimura ,  Junichiro Hashimoto

发明人： Manabu Mochizuki ,  Seiichi Miyakawa ,  Taro Kimura ,  Junichiro Hashimoto

IPC分类号： G03G15/10 ,  G03G15/00

CPC分类号： G03G15/105 ,  Y10S222/01

摘要： First and second sensors (37), (39) are provided in a developing tank (36) containing a liquid developer consisting of a liquid carrier or dispersant and toner particles dispersed in the carrier. The first sensor (37) measures the electrical resistivity of the developer whereas the second sensor (39) measures the optical transmissibility thereof. Additional toner is supplied into the developer to maintain the transmissivity at a value which is a predetermined function of the resistivity. The transmissibility value is reduced as the resistivity increases, thereby maintaining the copy image density constant. The first sensor (37) includes two electrodes immersed in the developer and an A.C. or D.C. voltage is applied thereacross. The current flow through the electrodes (37) and thereby the developer is measured to determine the resistivity of the developer. Where the applied voltage is D.C., an arrangement is provided to mechanically scrape accumulated developer off the electrodes (37) at intermittent intervals.

摘要翻译： 第一和第二传感器（37），（39）设置在包含由液体载体或分散剂组成的液体显影剂和分散在载体中的调色剂颗粒的显影槽（36）中。 第一传感器（37）测量显影剂的电阻率，而第二传感器（39）测量其透光率。 附加的调色剂被供应到显影剂中以将透射率保持在作为电阻率的预定函数的值。 透射率值随着电阻率的增加而减小，从而保持复印图像的密度不变。 第一传感器（37）包括浸在显影剂中的两个电极，并且在其上施加交流或直流电压。 测量通过电极（37）和由此显影剂的电流流动以确定显影剂的电阻率。 在施加的电压为直流电的情况下，提供了一种布置以间歇地间隔地将积聚的显影剂从电极（37）上刮除。

公开(公告)号：US5666616A

公开(公告)日：1997-09-09

申请号：US542724

申请日：1995-10-13

申请人： Mie Yoshino ,  Makoto Obu ,  Takeo Tsukamoto ,  Seiichi Miyakawa ,  Yusuke Takeda ,  Masami Hiramatsu

发明人： Mie Yoshino ,  Makoto Obu ,  Takeo Tsukamoto ,  Seiichi Miyakawa ,  Yusuke Takeda ,  Masami Hiramatsu

IPC分类号： G03G15/06 ,  G03G15/10 ,  G03G15/11

CPC分类号： G03G15/11

摘要： A wet-type image forming apparatus produces a high-quality toner image by condensing a toner image on a photosensitive drum and adhering the toner image onto the photosensitive drum without contacting a liquid carrier applied on the photosensitive drum. The photosensitive drum carries a latent image formed thereon. The toner image is formed by developing the latent image by using a developing liquid including the liquid carrier and toner dispersed in the liquid carrier. An excessive amount of liquid carrier on the photosensitive drum is removed after the toner image is formed. An electric field is formed which causes a current to flow between an electrically conductive member and the photosensitive drum. An air gap is formed between the liquid carrier on the photosensitive drum and the electrically conductive member so that the current flows through the gap, the liquid carrier and the toner image. The toner image on the photosensitive drum is transferred to a transfer material after the toner image passes an area in which the electric field is generated.

摘要翻译： 湿式图像形成装置通过将感光鼓上的调色剂图像聚焦并将调色剂图像粘附到感光鼓上而不接触施加在感光鼓上的液体载体而产生高质量的调色剂图像。 感光鼓承载形成在其上的潜像。 通过使用包括液体载体的显影液和分散在液体载体中的调色剂显影潜像来形成调色剂图像。 在形成调色剂图像之后，去除感光鼓上的过量液体载体。 形成电场，其导致电流在导电构件和感光鼓之间流动。 在感光鼓上的液体载体和导电构件之间形成气隙，使得电流流过间隙，液体载体和调色剂图像。 在调色剂图像通过其中产生电场的区域之后，将感光鼓上的调色剂图像转印到转印材料上。

公开(公告)号：US4640129A

公开(公告)日：1987-02-03

申请号：US726166

申请日：1985-04-22

申请人： Seiichi Miyakawa ,  Susumu Tatsumi ,  Koji Sakamoto

发明人： Seiichi Miyakawa ,  Susumu Tatsumi ,  Koji Sakamoto

IPC分类号： G01N11/06 ,  G03G15/08 ,  G03G9/10

CPC分类号： G01N11/06 ,  G03G15/0849 ,  G03G15/0853 ,  G03G15/0855 ,  Y10S222/01

摘要： A method of detecting the toner concentration of a two-component developer comprising a mixture of carrier particles and toner particles for use in an electrostatic copying apparatus or the like wherein a relationship between flow rate and the toner concentration of a two-component developer which passes through a container is obtained in advance, then the flow rate of the two-component developer whose toner concentration is unknown is measured by use of the container and developer flow rate detecting member. Thus, the toner concentration of the developer is determined from the measured flow rate and the relationship between the flow rate and the toner concentration which has been obtained in advance.

摘要翻译： 一种检测包含用于静电复印设备等中的载体颗粒和调色剂颗粒的混合物的双组分显影剂的调色剂浓度的方法，其中流速与通过的双组分显影剂的调色剂浓度之间的关系 通过预先获得容器，则通过使用容器和显影剂流量检测构件测量调色剂浓度未知的双组分显影剂的流速。 因此，显影剂的调色剂浓度由预先获得的测量流速和流速与调色剂浓度之间的关系确定。

公开(公告)号：US4286543A

公开(公告)日：1981-09-01

申请号：US37324

申请日：1979-05-08

申请人： Teruyuki Ohnuma ,  Seiichi Miyakawa ,  Hajime Oyama

发明人： Teruyuki Ohnuma ,  Seiichi Miyakawa ,  Hajime Oyama

IPC分类号： G03G13/08 ,  G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0914 ,  G03G15/0812 ,  G03G15/0813 ,  G03G2215/0614 ,  G03G2215/0641

摘要： A method of and apparatus for developing a latent electrostatic image in which a one-component type developer is deposited on the surface of a developer applicator having a conductive and elastic endless surface and the developer applicator is brought into pressure contact with a latent electrostatic image bearing member having a latent electrostatic image thereon. The peripheral speed of the developer applicator is slightly greater than that of the latent electrostatic image bearing member. In the case where the developer on the surface of the developer applicator is charged by charge injection from a blade electrode which is in contact with the developer, the present development apparatus is provided with a means for insulating the opposite top end portions of the blade electrode from the surface of said developer applicator.

摘要翻译： 一种静电潜像显影方法和显影装置，其中在具有导电和弹性环形表面的显影剂涂布器的表面上沉积单组分型显影剂并使显影剂施加器与静电潜像载体 在其上具有静电潜像的构件。 显影剂涂布器的圆周速度略大于静电潜像承载部件的圆周速度。 在显影剂涂布器的表面上的显影剂从与显影剂接触的刮板电极进行电荷注入而被充电的情况下，本发明装置设置有用于将刀片电极的相对的顶端部绝缘的装置 从所述显影剂涂布器的表面。

公开(公告)号：US4195260A

公开(公告)日：1980-03-25

申请号：US875345

申请日：1978-02-06

申请人： Koji Sakamoto ,  Seiichi Miyakawa ,  Susumu Tatsumi

发明人： Koji Sakamoto ,  Seiichi Miyakawa ,  Susumu Tatsumi

IPC分类号： G03G15/08 ,  G01N9/00

CPC分类号： G03G15/0853 ,  G03G15/0849 ,  G03G15/0855 ,  Y10S222/01

摘要： Deterioration of a dry developing substance causes toner particles to be so strongly adhered to carrier particles that they cannot be readily separated therefrom. The present apparatus comprises means for applying a predetermined electrostatic or air suction force to the developer to readily remove toner therefrom except for spent toner particles strongly adhered to the carrier particles. The toner density, or the ratio of toner to carrier particles, is then measured electromagnetically or optically and compared to a reference value. The developer deterioration determines what proportion of toner will be removed from the developer by said force and thereby the subsequently sensed toner density. The higher the sensed toner density, the greater the degree of deterioration.

摘要翻译： 干发展物质的劣化导致调色剂颗粒如此强烈地粘附到载体颗粒上，使其不能容易地与载体颗粒分离。 本装置包括用于向显影剂施加预定的静电或空气抽吸力以便容易地除去调色剂的装置，除了与载体颗粒强烈粘附的废调色剂颗粒之外。 然后调色剂密度或调色剂与载体颗粒的比例以电磁或光学方式测量，并与参考值进行比较。 显影剂劣化确定通过所述力从显影剂中除去调色剂的比例，从而确定随后感测到的调色剂浓度。 感测到的调色剂浓度越高，劣化程度越大。

公开(公告)号：US5247334A

公开(公告)日：1993-09-21

申请号：US906661

申请日：1992-06-30

申请人： Seiichi Miyakawa ,  Shigeru Suzuki

发明人： Seiichi Miyakawa ,  Shigeru Suzuki

IPC分类号： G03G15/01 ,  G03G15/10 ,  G03G15/16 ,  G03G15/18

CPC分类号： G03G15/0142 ,  G03G15/0147 ,  G03G15/18

摘要： An image formation method for forming an image includes the steps of electrostatically transferring a latent electrostatic image formed on a latent-electrostatic-image bearing member to an intermediate transfer medium composed of at least a support, and an electroconductive layer and a dielectric layer which are successively overlaid on the support, developing the latent electrostatic image which has been electrostatically transferred onto the intermediate transfer medium into a visible image by a wet-type development method, and non-electrostatically transferring the visible image on the intermediate transfer medium to a final recording medium with the application of heat and pressure thereto. An image formation apparatus for carrying out the above method is disclosed.

摘要翻译： 用于形成图像的图像形成方法包括以下步骤：将形成在潜像静电图像承载部件上的静电潜像静电转移到由至少支撑体和导电层和电介质层组成的中间转印介质，所述中间转印介质是 依次叠置在支撑上，通过湿式显影方法将静电转印到中间转印介质上的静电潜像显影成可见图像，并将中间转印介质上的可见图像非静电转印到最终记录 介质对其施加热和压力。 公开了一种用于实现上述方法的图像形成装置。

公开(公告)号：USRE31707E

公开(公告)日：1984-10-16

申请号：US199836

申请日：1980-10-23

申请人： Seiichi Miyakawa ,  Tadahiro Eda

发明人： Seiichi Miyakawa ,  Tadahiro Eda

IPC分类号： G03G15/06

CPC分类号： G03G15/065 ,  Y10S101/37

摘要： A photoconductive member is charged and radiated with a light image to produce an electrostatic image. Sensing electrodes automatically sense the remaining potential in a portion of the electrostatic image corresponding to a background area of the original document scanned to produce the light image. In one embodiment the area is a white reference document disposed adjacent to the original document. In another embodiment a reference document is not provided and a plurality of portions of the electrostatic image are sensed. The lowest value of the sensed potential is utilized. Computing means compute and apply the biasing voltage to the developing electrode as a predetermined function of the sensed potential.

公开(公告)号：US4350749A

公开(公告)日：1982-09-21

申请号：US15471

申请日：1979-02-26

申请人： Teruyuki Ohnuma ,  Seiichi Miyakawa ,  Hajime Oyama

发明人： Teruyuki Ohnuma ,  Seiichi Miyakawa ,  Hajime Oyama

IPC分类号： G03G15/08 ,  G03G15/09 ,  G03G13/09

CPC分类号： G03G15/0914 ,  G03G15/0806 ,  Y10S430/104

摘要： A reverse development is performed with application of development bias voltage to a development sleeve at the time of development, and the polarity of the bias voltage is reversed or the bias voltage is reduced to zero at the time of non-development. Furthermore, positive images and negative images can be selectively formed by changing the voltage to be applied to a charge injection electrode, without changing the bias voltage to be applied to the development sleeve.

摘要翻译： 在显影时将显影偏压施加到显影套筒进行反向显影，并且在非显影时偏置电压的极性反转或偏置电压降至零。 此外，可以通过改变施加到电荷注入电极的电压而不改变施加到显影套筒的偏置电压来选择性地形成正像和负像。

公开(公告)号：US4218130A

公开(公告)日：1980-08-19

申请号：US931398

申请日：1978-08-04

申请人： Toyokazu Satomi ,  Yutaka Koizumi ,  Seiichi Miyakawa ,  Isao Nakamura ,  Yasuhiro Tabata ,  Tamaki Kaneko

发明人： Toyokazu Satomi ,  Yutaka Koizumi ,  Seiichi Miyakawa ,  Isao Nakamura ,  Yasuhiro Tabata ,  Tamaki Kaneko

IPC分类号： G03G15/23 ,  G03G15/00

CPC分类号： G03G15/23 ,  G03G2215/00282

摘要： In successively copying a plurality of continuous pages of a book original by means of a copying apparatus adapted to print images of the pages on opposite surfaces of each copy sheet, a printing operation is controlled in such a manner that a series of processes including, illumination of the pages, charging and exposing of a photosensitive drum, developing, fixing and transfer printing of visible images, and ejection of printed copy sheets is automatically performed, if the book original is opened at desired pages and placed on an original placing glass plate of the copying apparatus in a normal condition in which the top of the book original is remote from the operator. With the operator merely turning the pages, the control method enables the production of a bundle or bundles of duplicate copies of the pages of the same order and arrangement as the book original, regardless of whether the book original is bound on the left side or on the right side and whether the first and last pages to be copied have even numbers or odd numbers. In copying the adjacent two pages, two pages can be copied in separate copying processes or in a single continuous copying process for the two pages.

摘要翻译： 在通过适于在每个复印纸的相对表面上打印页面的图像的复印设备连续复印书本的多个连续页面的情况下，以这样的方式控制打印操作，即一系列处理包括照明 自动执行页面的充电和曝光，显影，固定和转印可见图像的打印以及打印的复印纸的排出，如果书本原稿在期望的页面打开并放置在原稿放置玻璃板上 在正常状态下的复印设备，其中书本的顶部远离操作者。 操作人员只需转动页面，控制方法就可以生成与书籍原件相同的顺序和布置的一个或多个页面的副本的副本，而不管书籍是在左边还是在 右侧是否要复制的第一页和最后一页是偶数或奇数。 在复制相邻的两页时，可以在单独的复制过程中或在两页的单个连续复印过程中复制两个页面。