公开(公告)号：US5426488A

公开(公告)日：1995-06-20

申请号：US135632

申请日：1993-10-14

申请人： Takashi Hayakawa ,  Kenji Tani ,  Katsumi Adachi

发明人： Takashi Hayakawa ,  Kenji Tani ,  Katsumi Adachi

IPC分类号： G03G15/02

CPC分类号： G03G15/0216 ,  G03G15/0266 ,  G03G2215/023

摘要： A charging member comprised of a conductive shaft and conductive fibers planted thereon is brought into contact with a charged member with a photoconductor provided on the surface thereof. The conductive shaft is applied with a combined voltage of d.c. voltage and a.c. voltage having a peak-peak value lower than two times the discharge starting threshold voltage that is determined by the surrounding atmosphere around the charged member. While the charging member and the charged member rotate at different surface velocity, the charged member is charged through the contact area in which impedance is low due to the influence of a.c. voltage, so that a stable surface potential close to the d.c. voltage may be charged onto the charged member. Further, it is effective that the frequency f of the a.c. voltage will be so set up as to suffice a relation: f>Vp/2R, where f is a frequency of the applied a.c. voltage, Vp(mm/s) is a moving velocity of the charged member, and R(mm) is a particle size of a developer used. Moreover, it is effective that another charging member is provided on the downstream side of the aforementioned charging member.

摘要翻译： 由导电轴和其上植入的导电纤维构成的充电构件与带电构件与设置在其表面上的感光体接触。 导电轴施加有直流的组合电压。 电压和电流 电压具有低于由充电构件周围的周围大气确定的放电起始阈值电压的两倍的峰值。 当充电构件和带电构件以不同的表面速度旋转时，由于交流电的影响，带电构件通过阻抗较低的接触区域充电。 电压，使得稳定的表面电位接近直流。 电压可能被充电到带电元件上。 此外，a.c.的频率f是有效的。 电压将被设置为足以满足关系：f> Vp / 2R，其中f是施加的交流电的频率。 电压Vp（mm / s）是带电部件的移动速度，R（mm）是所使用的显影剂的粒径。 此外，在上述充电部件的下游侧设置另一个充电部件是有效的。

公开(公告)号：US5689778A

公开(公告)日：1997-11-18

申请号：US557974

申请日：1995-11-13

申请人： Takashi Hayakawa ,  Katsumi Adachi

发明人： Takashi Hayakawa ,  Katsumi Adachi

IPC分类号： G03G15/02 ,  G03G15/08 ,  G03G21/00 ,  G03G21/10

CPC分类号： G03G21/0064 ,  G03G2221/0005

摘要： An image forming apparatus adopting a cleaningless process using contact-type charging means, includes developer scattering means which is located between the charging means and an exposure position in contact with the surface of an image carrier. For example, the developer scattering means is a conducting brush which scatters, catches and temporarily holds the residual toner on the image carrier. With this structure, even in an image forming apparatus adopting the cleaningless process using the contact-type charging means, the residual toner on the image carrier is scattered and caught by developer catching means before the residual toner reaches the exposure position. Thus, a lowering of the image quality which is caused if the residual toner is patterned by the charging means is prevented, thereby improving the image quality. Consequently, it is possible to provide a small-sized superior image forming apparatus with high maintainability which is capable of recycling the developer and producing an image with high image quality.

摘要翻译： 采用接触式充电装置的无清洁处理的图像形成装置包括位于充电装置和与图像载体的表面接触的曝光位置之间的显影剂散射装置。 例如，显影剂散射装置是导电刷，其将残留调色剂散布，捕捉并临时保持在图像载体上。 利用这种结构，即使在使用接触式充电装置的无刷处理的图像形成装置中，在残留调色剂到达曝光位置之前，图像载体上的残留调色剂被显影剂捕获装置散落并被捕获。 因此，防止了通过充电装置对剩余调色剂进行图案化而导致的图像质量的降低，从而提高了图像质量。 因此，可以提供一种具有高可维护性的小尺寸的上述图像形成装置，其能够再循环显影剂并产生具有高图像质量的图像。

公开(公告)号：US5592263A

公开(公告)日：1997-01-07

申请号：US258969

申请日：1994-06-13

申请人： Katsumi Adachi ,  Shiro Narikawa ,  Takashi Hayakawa ,  Yukihito Nishio ,  Hirofumi Yanagizawa ,  Takumi Sakamoto ,  Atsushi Okada

发明人： Katsumi Adachi ,  Shiro Narikawa ,  Takashi Hayakawa ,  Yukihito Nishio ,  Hirofumi Yanagizawa ,  Takumi Sakamoto ,  Atsushi Okada

IPC分类号： G03G15/02

CPC分类号： G03G15/0233

摘要： A charging device for use in an image forming apparatus is disclosed which charges an object to be charged by contacting a conductive charging member with the surface of the object and then applying a voltage across the charging member and the object,wherein at least a contact portion of the charging member comprises a conductive material having a hygroscopic degree of 0.2% or less.

摘要翻译： 公开了一种用于图像形成装置的充电装置，其通过使导电充电构件与物体的表面接触，然后在充电构件和物体上施加电压来对待充电的物体进行充电，其中至少接触部分 的充电构件包括具有0.2％或更小的吸湿度的导电材料。

公开(公告)号：US5563691A

公开(公告)日：1996-10-08

申请号：US463774

申请日：1995-06-05

申请人： Takashi Hayakawa ,  Katsumi Adachi ,  Yuhi Yui

发明人： Takashi Hayakawa ,  Katsumi Adachi ,  Yuhi Yui

IPC分类号： G03G15/16 ,  G03G21/00 ,  G03G21/10

CPC分类号： G03G21/0041 ,  G03G21/0058

摘要： An image-forming apparatus including a cleaning means for selectively removing foreign matters other than developer remaining on the surface of a photoconductor drum therefrom after a transferring process. The cleaning means is provided with a foreign-matter removing roller which comes into contact with the surface of the photoconductor drum. Foreign matters, which are charged by a transferring device to have a polarity reversed to that of the charged electric potential of toner through an electric field that is exerted between the surfaces of the roller and the photoconductor drum, are allowed to adhere to the surface of the foreign-matter removing roller. As for the surface of the foreign-matter removing roller, the surface electric potential of the foreign-matter removing roller is biased farther toward the polarity of the charged toner than the surface electric potential of the photoconductor drum at the contact portion between the photoconductor drum and the foreign-matter removing roller. Thus, it becomes possible to provide an image forming apparatus which is capable of supplying images with good picture quality for a long time, by using a cleaning operation of this cleaning means.

摘要翻译： 一种图像形成装置，其包括清洁装置，用于在转印过程之后从其上选择性除去除了在感光鼓的表面上残留的显影剂之外的异物。 清洁装置设置有与感光鼓的表面接触的异物去除辊。 通过施加在辊和感光鼓的表面之间的电场，由转印装置充电以使极性与调色剂的带电电位相反的异物被允许粘附到 异物去除辊。 对于异物去除辊的表面，除了感光鼓之间的接触部分处，异物除去辊的表面电位被偏向比带电调色剂的极性更大的方式偏压于感光鼓的表面电位 和异物去除辊。 因此，可以通过使用该清洁装置的清洁操作来提供能够长时间地提供具有良好图像质量的图像的图像形成装置。

公开(公告)号：US5555079A

公开(公告)日：1996-09-10

申请号：US341060

申请日：1994-11-16

申请人： Katsumi Adachi ,  Takashi Hayakawa

发明人： Katsumi Adachi ,  Takashi Hayakawa

IPC分类号： G03G15/02 ,  G03G15/08 ,  G03G21/00 ,  G03G21/10 ,  G03G21/16

CPC分类号： G03G15/0216 ,  G03G2215/023 ,  G03G2215/025

摘要： In an image forming apparatus including a charging element, a charged element, a developing element, and a cleaning element the dimensions of those elements satisfy either or both of the following relations:C+D

摘要翻译： 在包括充电元件，带电元件，显影元件和清洁元件的图像形成设备中，这些元件的尺寸满足以下关系中的一个或两个：C + D

公开(公告)号：US5754925A

公开(公告)日：1998-05-19

申请号：US721442

申请日：1996-09-27

申请人： Yuhi Yui ,  Katsumi Adachi ,  Takashi Hayakawa ,  Eiichi Kido ,  Koichi Moriyama ,  Toyokazu Mori

发明人： Yuhi Yui ,  Katsumi Adachi ,  Takashi Hayakawa ,  Eiichi Kido ,  Koichi Moriyama ,  Toyokazu Mori

IPC分类号： G03G21/10 ,  G03G15/02 ,  G03G15/08 ,  G03G21/00 ,  G03G15/24

CPC分类号： G03G21/0064

摘要： An image forming apparatus includes: an image support medium; a charging member for charging the surface of the image support medium in contact with the surface of it; an exposure device for irradiating with light the surface of the image support medium charged by the charging member to form a static latent image; a developing device for supplying developer to the static latent image formed on the image support medium to develop the latent image and for removing the leftover developer on the image support medium; a transfer device for transferring the developer image, which has been developed on the image support medium by the developing device, to a member to be transferred; and a scraping member for scraping foreign matter such as dust and paper particles on the image support medium. The image forming apparatus is constructed such that the charging member causes the developer to adhere to the scraped foreign matter, and then the foreign matter is collected by the developing device through the image support medium. The scraping member is held by a holder which has an opening for allowing the foreign matter to pass through into the charging member housing.

摘要翻译： 图像形成装置包括：图像载体介质; 充电构件，用于对图像载体介质的与其表面接触的表面进行充电; 曝光装置，用于对由充电部件充电的图像载体介质的表面进行光照射以形成静电潜像; 显影装置，用于将显影剂供应到形成在图像载体介质上的静电潜像，以显影潜像并去除图像载体介质上的剩余显影剂; 用于将由显影装置在图像支持介质上显影的显影剂图像转印到要转印的构件上的转印装置; 以及用于在图像载体介质上刮除诸如灰尘和纸颗粒的异物的刮擦构件。 图像形成装置被构造成使得充电构件使显影剂附着到刮除的异物上，然后异物通过图像支持介质被显影装置收集。 刮擦构件由具有用于允许异物通过进入充电构件壳体的开口的保持器保持。

公开(公告)号：US5602659A

公开(公告)日：1997-02-11

申请号：US384359

申请日：1995-02-02

申请人： Katsumi Adachi ,  Takashi Hayakawa ,  Shiro Narikawa

发明人： Katsumi Adachi ,  Takashi Hayakawa ,  Shiro Narikawa

IPC分类号： G02F1/135

CPC分类号： G02F1/1354 ,  G02F2001/1351 ,  G02F2001/1355

摘要： A photoconductor coupled liquid crystal light valve comprising at least a pair of transparent electrode, a liquid crystal layer and a photoconductive layer showing blocking properties both sandwiched between said transparent electrodes, wherein said photoconductive layer includes a light absorbing layer and a blocking layer having a band gap wider than said light absorbing layer, both said light absorbing layer and said blocking layer being formed of non-alloy a-Si; and a method for manufacturing said photoconductor coupled light valve wherein said photoconductive layer is prepared with electron cyclotron resonance method.

摘要翻译： 一种感光体耦合的液晶光阀，包括至少一对透明电极，液晶层和显示出阻挡性能的光电导层，两者均夹在所述透明电极之间，其中所述光电导层包括光吸收层和具有带 间隙比所述光吸收层宽，所述光吸收层和所述阻挡层均由非合金a-Si形成; 以及制造所述感光体耦合光阀的方法，其中所述光电导层用电子回旋共振法制备。

公开(公告)号：US5324549A

公开(公告)日：1994-06-28

申请号：US992893

申请日：1992-12-18

申请人： Takashi Hayakawa ,  Shiro Narikawa ,  Katsumi Adachi ,  Akitsugu Hatano

发明人： Takashi Hayakawa ,  Shiro Narikawa ,  Katsumi Adachi ,  Akitsugu Hatano

IPC分类号： G02F1/135 ,  H01L31/0248

CPC分类号： G02F1/1354 ,  Y10S430/136

摘要： A method for fabricating a photoconductor coupled liquid crystal valve comprising the step of; deposing a transparent electrode on a transparent substrate; forming on said transparent electrode a photoconductive layer formed of amorphous silicon by the ECR; forming on said photoconductive layer an optical shielding layer formed of amorphous silicon by the ECR; forming on said optical shielding layer an optical reflection layer; forming an orientation film on said optical reflection layer; laminating on said orientation film a transparent substrate having a transparent electrode and another orientation film stoked thereon by the above method in such a manner that the two orientation films face each other with a spacer interposed therebetween; and disposing liquid crystals into said spacer.

摘要翻译： 一种制造感光体耦合液晶阀的方法，包括以下步骤： 在透明基板上放置透明电极; 在所述透明电极上形成由非晶硅由ECR形成的光电导层; 在所述光电导层上形成由非晶硅由ECR形成的光屏蔽层; 在所述光屏蔽层上形成光反射层; 在所述光反射层上形成取向膜; 在所述取向膜上层叠具有透明电极的透明基板和通过上述方法在其上引起的另一取向膜，使得两个取向膜彼此面对并间隔开; 并将液晶设置在所述间隔物中。

公开(公告)号：US5708929A

公开(公告)日：1998-01-13

申请号：US614762

申请日：1996-03-13

申请人： Katsumi Adachi ,  Takashi Hayakawa

发明人： Katsumi Adachi ,  Takashi Hayakawa

IPC分类号： G03G15/02 ,  G03G15/06 ,  G03G15/16 ,  G03G21/00 ,  G03G15/30

CPC分类号： G03G15/0216 ,  G03G15/1675 ,  G03G21/0064 ,  G03G2221/0005

摘要： In an image forming apparatus, when a transferred material exists in a transfer position between a photoreceptor drum and a transfer unit during an image forming operation, a transfer voltage, which has opposite polarity to that of a voltage applied to a brush charger and is used for transferring a developer image on the photoreceptor drum onto the transferred material is applied to the transfer unit. Meanwhile, when a transferred material does not exist in the transfer position during the image forming operation, a non-transfer voltage, which is lower than the transfer voltage, is applied to the transfer unit. As a result, defects on an image due to returning of a developer from the brush charger to the photoreceptor drum can be prevented from being generated.

摘要翻译： 在图像形成装置中，当在成像操作期间转印材料存在于感光鼓和转印单元之间的转印位置时，具有与施加到刷充电器的电压相反的极性的转印电压 将用于将感光鼓上的显影剂图像转印到转印材料上的图像被施加到转印单元。 同时，当在成像操作期间转印材料不存在转印材料时，将低于转印电压的非转印电压施加到转印单元。 结果，可以防止由于显影剂从刷充电器返回到感光鼓而使图像上的缺陷产生。

公开(公告)号：US10066616B2

公开(公告)日：2018-09-04

申请号：US14125679

申请日：2012-06-29

申请人： Katsumi Adachi

发明人： Katsumi Adachi

IPC分类号： F04B43/02 ,  F16K15/02 ,  F16K15/04 ,  F04B53/10 ,  F16K27/02 ,  F16K1/14 ,  F16K39/02 ,  F04B53/06 ,  F04B13/02 ,  F04B19/24

摘要： A pump is provided having a communication portion that provides continuous communication between a pump section and a discharge section in a state where a discharge-side check valve suppresses a backflow, and a size of the communication portion is set so that, when the continuously expanding and contracting pump section contracts, a volume of gas mixed in liquid in the pump section is contracted.