公开(公告)号：US06466757B2

公开(公告)日：2002-10-15

申请号：US09785203

申请日：2001-02-20

申请人： Masahiko Itaya ,  Tsutomu Sasaki ,  Yusuke Takeda ,  Mie Yoshino

发明人： Masahiko Itaya ,  Tsutomu Sasaki ,  Yusuke Takeda ,  Mie Yoshino

IPC分类号： G03G1510

CPC分类号： G03G15/11

摘要： A developing device of the type using a developing liquid and applicable to an image forming apparatus includes a developing roller and a sweep roller. The developing roller is pressed against a photoconductive drum to thereby form a nip. The sweep roller is positioned downstream of the nip in the direction of rotation of the drum and pressed against the drum in such a manner as to sandwich a developed toner layer. The surface of the sweep roller moves at substantially the same speed as the surface of the drum. A bias voltage (250 V) close to the surface potential (100 V to 200 V) of the toner layer formed on the drum is applied to the sweep roller. The bias causes the sweep roller to attract stray excess toner present on the background of the drum after development, thereby preventing a toner image from being blurred.

摘要翻译： 使用显影液并适用于图像形成装置的显影装置包括显影辊和清扫辊。 将显影辊压在感光鼓上，从而形成辊隙。 扫掠辊位于辊隙的下游，沿着滚筒的旋转方向并以压制显影的调色剂层的方式压靠滚筒。 扫掠辊的表面以与鼓的表面基本相同的速度移动。 接近形成在鼓上的调色剂层的表面电位（100V至200V）的偏置电压（250V）施加到扫掠辊。 偏置导致扫掠辊在显影之后吸引存在于滚筒背景上的杂散多余的调色剂，从而防止调色剂图像模糊。

公开(公告)号：US6131001A

公开(公告)日：2000-10-10

申请号：US971898

申请日：1997-11-17

申请人： Takeo Tsukamoto ,  Yusuke Takeda

发明人： Takeo Tsukamoto ,  Yusuke Takeda

IPC分类号： G01N11/08 ,  G01N11/12 ,  G03G15/10

CPC分类号： G01N11/08 ,  G01N11/12 ,  G03G15/105

摘要： An image forming apparatus having an improved developer density detecting device for detecting density of a liquid type developer without using an optical sensor. Density of the liquid type developer is detected based upon viscosity of the liquid type developer, which is obtained by sensing pressures, for example, of the liquid type developer sent by a pump and flowing through a developer circulating pipe and applying pressure data obtained by sensing pressures to a predetermined formula. The viscosity can also be obtained by dropping a steel ball, or moving a steel ball, through the liquid type developer and measuring properties based on movement of the steel ball. The viscosity can also be obtained by measuring torque of a device rotating with the liquid type developer.

摘要翻译： 一种具有改进的显影剂密度检测装置的图像形成装置，用于在不使用光学传感器的情况下检测液体型显影剂的密度。 基于液体型显影剂的粘度来检测液体型显影剂的密度，该液体型显影剂通过感测例如由泵送出并流过显影剂循环管的液体型显影剂的压力获得并施加通过感测获得的压力数据 压力达到预定公式。 粘度还可以通过将钢球或移动钢球通过液体型显影剂和基于钢球的运动的测量性能来获得。 也可以通过测量用液体型显影剂旋转的装置的扭矩来获得粘度。

公开(公告)号：US6115576A

公开(公告)日：2000-09-05

申请号：US301723

申请日：1999-04-29

申请人： Tohru Nakano ,  Sadayuki Iwai ,  Hideki Kosugi ,  Yusuke Takeda

发明人： Tohru Nakano ,  Sadayuki Iwai ,  Hideki Kosugi ,  Yusuke Takeda

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

CPC分类号： G03G15/161 ,  G03G2215/017 ,  G03G2215/0629

摘要： In an image forming apparatus, a developing device develops an electrostatic latent image formed on an image carrier with a developing liquid to thereby produce a corresponding toner image. The toner image is transferred from the image carrier to an intermediate transfer body. To increase a transfer ratio from the intermediate transfer body to a paper or similar recording medium, charge applying device applies to the toner image transferred to the intermediate transfer member a charge identical in polarity with toner particles forming the toner image. A roller member faces the surface of the intermediate transfer body to which the toner image is transferred for cleaning the transfer body and removing a carrier liquid. The roller member also controls the amount of carrier liquid on the intermediate transfer body.

摘要翻译： 在图像形成装置中，显影装置利用显影液显影形成在图像载体上的静电潜像，从而产生相应的调色剂图像。 调色剂图像从图像载体转印到中间转印体。 为了增加从中间转印体到纸或类似记录介质的转印比率，向转印到中间转印部件的调色剂图像施加与形成调色剂图像的调色剂颗粒极性相同的电荷的电荷施加装置。 辊子构件面向转印有调色剂图像的中间转印体的表面，以清洁转印体并除去载液。 辊构件还控制中间转印体上的载液量。

公开(公告)号：US5864737A

公开(公告)日：1999-01-26

申请号：US722307

申请日：1996-09-27

申请人： Makoto Obu ,  Seiichi Miyakawa ,  Kunio Hibi ,  Kozoh Sudoh ,  Hidenori Kanno ,  Youichi Ueda ,  Toshio Inada ,  Yusuke Takeda ,  Sadayuki Iwai

发明人： Makoto Obu ,  Seiichi Miyakawa ,  Kunio Hibi ,  Kozoh Sudoh ,  Hidenori Kanno ,  Youichi Ueda ,  Toshio Inada ,  Yusuke Takeda ,  Sadayuki Iwai

IPC分类号： G03G15/02 ,  G03G15/10 ,  G03G15/16

CPC分类号： G03G15/0208 ,  G03G15/0291

摘要： An apparatus which forms a discharge electric field in order to discharge an object. The apparatus includes an electrode member facing and separated by a preselected gap from the object, and a power source which applies a discharge voltage to the electrode member to thereby cause discharge to occur between the object and the electrode member. Further, the electrode member at the gap includes a material selected in association with the gap so that a functional relationship between the discharge voltage and a discharge current caused by the discharge voltage is a continuous function.

摘要翻译： 一种形成放电电场以便放电物体的装置。 该装置包括面向并与物体相隔预定间隙的电极构件，以及向该电极构件施加放电电压从而在物体和电极构件之间发生放电的电源。 此外，间隙中的电极部件包括与间隙相关联地选择的材料，使得由放电电压引起的放电电压和放电电流之间的功能关系是连续的功能。

公开(公告)号：US5708938A

公开(公告)日：1998-01-13

申请号：US572708

申请日：1995-12-14

申请人： Noriyasu Takeuchi ,  Tsuneo Kurotori ,  Masakazu Muranaka ,  Katsuaki Miyawaki ,  Toshio Inada ,  Yusuke Takeda ,  Sadayuki Iwai ,  Kozoh Sudoh

发明人： Noriyasu Takeuchi ,  Tsuneo Kurotori ,  Masakazu Muranaka ,  Katsuaki Miyawaki ,  Toshio Inada ,  Yusuke Takeda ,  Sadayuki Iwai ,  Kozoh Sudoh

IPC分类号： G03G15/10 ,  G03G15/20 ,  G03G13/10

CPC分类号： G03G15/2064 ,  G03G15/107

摘要： A wet process image forming apparatus using a developing liquid consisting of a carrier liquid and a toner dispersed therein, in which air containing carrier vapor produced in, e.g., a fixing section, is sucked by a suction fan via a first duct into a liquefying section. The liquefying section liquefies the carrier vapor and water vapor. A separating section is disposed below the liquefying portion and includes a receptacle. A liquid produced by the liquefying section is caused to flow down into the receptacle along a chain due to its own weight. The separating section separates the liquid into the carrier liquid and water on the basis of a difference in specific gravity. Only the carrier overlying the water in the receptacle is fed to a carrier tank via overflow ports formed in the wall of the receptacle. The water is delivered to a water tank via a pipe. The pipe is so configured as to maintain the liquid level in the receptacle substantially at the level of the overflow ports.

摘要翻译： 使用由载体液体和分散在其中的调色剂组成的显影液的湿法成像设备，其中在例如固定部分中产生的载体蒸气的空气通过第一导管被吸入风扇吸入液化部分 。 液化部分使载体蒸汽和水蒸汽液化。 分离部分设置在液化部分的下面并且包括容器。 由液化部产生的液体由于其自身重量而沿着链条向下流入容器。 分离部分基于比重差将液体分离成载液和水。 仅覆盖在容器中的水的载体通过形成在容器的壁中的溢流端口被供给到载体罐。 水通过管道输送到水箱。 管道被配置成将容器中的液面保持在基本上位于溢流口的水平面上。