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1. 发明授权

US5940668A Image forming apparatus with voltage polarity switching means 失效
标题翻译：具有电压极性切换装置的图像形成装置
公开(公告)号：US5940668A
公开(公告)日：1999-08-17
申请号：US841674
申请日：1997-04-30
申请人： Koichi Tanigawa , Kimio Nakahata , Akihiko Takeuchi , Hideo Nanataki , Kazuaki Ono
发明人： Koichi Tanigawa , Kimio Nakahata , Akihiko Takeuchi , Hideo Nanataki , Kazuaki Ono
IPC分类号： G03G15/01 , G03G15/16 , G03G15/14
CPC分类号： G03G15/161 , G03G15/0131 , G03G15/162 , G03G2215/0174 , G03G2215/1652 , G03G2215/1657 , G03G2215/1661
摘要： An image forming apparatus includes a first image bearing member on which a toner image can be formed; an intermediate transfer member onto which the toner image is transferable from the first image bearing member; wherein the toner image is further transferred onto a second image bearing member therefrom; wherein the intermediate transfer member comprises a conductive layer to which a voltage is applied, a surface layer on the conductive layer, and a volume resistivity of the surface layer is 10.sup.5 -10.sup.11 ohm.cm.
摘要翻译：图像形成装置包括可以形成调色剂图像的第一图像承载部件; 中间转印部件，可从第一图像承载部件转印调色剂图像; 其中所述调色剂图像进一步被转印到第二图像承载部件上; 其中所述中间转印部件包括施加电压的导电层，所述导电层上的表面层，所述表面层的体积电阻率为105-1011欧姆·厘米。

2. 发明授权

US5084733A Developing apparatus having developer layer regulation means 失效
标题翻译：具有开发商层级监管手段的开发设备
公开(公告)号：US5084733A
公开(公告)日：1992-01-28
申请号：US261999
申请日：1988-10-25
申请人： Motoi Katoh , Takashi Hino , Michihito Yamazaki , Keiji Okano , Yasushi Sato , Kimio Nakahata
发明人： Motoi Katoh , Takashi Hino , Michihito Yamazaki , Keiji Okano , Yasushi Sato , Kimio Nakahata
IPC分类号： G03G15/08 , G03G15/09
CPC分类号： G03G15/0898 , G03G15/0812 , G03G15/0818 , G03G15/09
摘要： A developing apparatus including a developer carrying member for carrying a developer, a magnet disposed in the developer carrying member, and an elastic regulating member contacting the developer carrying member to regulate a thickness of a layer of the developer formed on the developer carrying member. The developer carrying member has a roughened surface over a width thereof larger than a width of the portion of the elastic regulating member contacting the developer carrying member while the magnet forms a magnetic field in a marginal region of the roughened surface of the developer carrying member not contacting the elastic regulating member to remove magnetic developer.

3. 发明授权

US5010370A Transfer apparatus and image bearing apparatus using same having transfer means for contacting a backside of a transfer material 失效
标题翻译：使用转印装置和图像承载装置具有用于接触转印材料的背面的转印装置
公开(公告)号：US5010370A
公开(公告)日：1991-04-23
申请号：US426002
申请日：1989-10-24
申请人： Junji Araya , Yukihiro Ohzeki , Toshio Miyamoto , Koichi Hiroshima , Yasushi Sato , Kimio Nakahata
发明人： Junji Araya , Yukihiro Ohzeki , Toshio Miyamoto , Koichi Hiroshima , Yasushi Sato , Kimio Nakahata
IPC分类号： G03G15/16
CPC分类号： G03G15/1675
摘要： An image transfer apparatus for transferring a toner image onto a transfer material includes an image bearing member for carrying a developed toner image; image transfer bias applying roller for contacting to a backside of the transfer material, for urging it to the image bearing member having the toner image and for applying a transfer bias to transfer the toner image to the transfer material; wherein amounts of charge applied to the transfer material by the transfer bias applying roller during its transfer operation satisfyA.gtoreq.B/2where A (Coulomb/cm.sup.2) is an amount of the charge at a portion where a surface potential of the image bearing member is relatively low, and B (Coulomb/cm.sup.2) is an amount of the charge at a portion where the surface potential of the image bearing member is relatively high. Then, disturbance to the image by the image transfer operation can be avoided.

4. 发明授权

US4937630A Image forming apparatus employing non-magnetic and magnetic toner 失效
标题翻译：使用非磁性和磁性调色剂的成像设备
公开(公告)号：US4937630A
公开(公告)日：1990-06-26
申请号：US127763
申请日：1987-12-02
申请人： Masao Yoshikawa , Kimio Nakahata
发明人： Masao Yoshikawa , Kimio Nakahata
IPC分类号： G03G13/01
CPC分类号： G03G13/013
摘要： An image forming apparatus employs a non-magnetic developing agent and a magnetic developing agent which have been charged to opposite polarities to develop at least first and second latent images formed on an image carrier in response to image information, thus forming first and second developed images. The first and second developed images are charged to the same polarity as that of the magetic developing agent, prior to the transfer onto a transfer medium so as to provide a vivid transferred image.
摘要翻译：图像形成装置采用非磁性显影剂和磁性显影剂，其已被充电为相反极性，以响应于图像信息而形成在图像载体上形成的至少第一和第二潜像，从而形成第一和第二显影图像。在转移到转印介质上之前，将第一和第二显影图像充电至与磁性显影剂相同的极性，以提供生动的转印图像。

5. 发明授权

US4872418A Magnet roll developing apparatus 失效
标题翻译：磁铁辊显影装置
公开(公告)号：US4872418A
公开(公告)日：1989-10-10
申请号：US914291
申请日：1986-10-02
申请人： Masao Yoshikawa , Kimio Nakahata
发明人： Masao Yoshikawa , Kimio Nakahata
IPC分类号： G03G15/09
CPC分类号： G03G15/0921 , G03G15/0935
摘要： A magnet roll, comprising a main body portion of a soft material and having a surface portion which is permanently magnetized, and a supporting portion integrally formed with the main body portion by the same soft material as of the main body portion for mounting the main body portion to a member to which the main body is to be mounted.
摘要翻译：一种磁辊，包括软质材料的主体部分并具有永久磁化的表面部分，以及与主体部分一体形成的与主体部分一体形成的支撑部分，用于安装主体部分部分连接到要安装主体的部件上。

6. 发明授权

US4672505A Corona discharging device 失效
标题翻译：电晕放电装置
公开(公告)号：US4672505A
公开(公告)日：1987-06-09
申请号：US744149
申请日：1985-06-13
申请人： Hiroaki Tsuchiya , Kimio Nakahata
发明人： Hiroaki Tsuchiya , Kimio Nakahata
IPC分类号： G03G15/02 , H01T19/00
CPC分类号： H01T19/00 , G03G15/0291
摘要： A corona discharging device having a corona discharging electrode to which a high voltage is applied to produce corona discharge. The high voltage applied to the corona discharging electrode is provided by superposing an AC voltage to a DC voltage. The DC voltage and the AC voltage are determined such that the corona discharging current has only the polarity which is the same as that of the DC component voltage. The corona discharge is stabilized and hardly produces a non-uniform discharge.
摘要翻译：一种具有电晕放电电极的电晕放电装置，施加高电压以产生电晕放电。通过将AC电压叠加到DC电压来提供施加到电晕放电电极的高电压。确定DC电压和AC电压，使得电晕放电电流仅具有与DC分量电压相同的极性。电晕放电稳定，几乎不产生不均匀的放电。

7. 发明授权

US4030447A Developing device 失效
标题翻译：开发设备
公开(公告)号：US4030447A
公开(公告)日：1977-06-21
申请号：US620402
申请日：1975-10-07
申请人： Toru Takahashi , Kimio Nakahata , Hidejiro Kadowaki
发明人： Toru Takahashi , Kimio Nakahata , Hidejiro Kadowaki
IPC分类号： G03G15/09
CPC分类号： G03G15/0921 , G03G2215/0636
摘要： This specification discloses a device for developing electrostatic latent images by the use of developer. The device includes a photosensitive medium bearing electrostatic latent images on the surface thereof to be developed, a container for containing therein magnetic carrier and toner, a permanent magnet fixedly mounted within the container, and a non-magnetic sleeve enclosing the magnet and rotatably mounted in the container for transporting the developer from the container to the latent image bearing surface. The permanent magnet has poles of identical polarity disposed adjacent to each other at positions opposed to the latent image bearing surface. Thus, development can be effected in the developing station by utilization of repelling magnetic fields produced by the poles of identical polarity.
摘要翻译：本说明书公开了通过使用显影剂显影静电潜像的装置。该装置包括在其显影表面上承载静电潜像的感光介质，用于容纳其中的磁性载体和调色剂的容器，固定地安装在容器内的永磁体和包围磁体的非磁性套筒，并可旋转地安装在用于将显影剂从容器运输到潜像承载表面的容器。永磁体具有与潜像承载表面相对的位置彼此相邻设置的相同极性的极。因此，可以通过利用由相同极性的极产生的排斥磁场在显影站中进行显影。

8. 发明授权

US6047149A Image forming apparatus having a rotatable first developing member, and a fixed second developing member having a housing partially covering the first developing member 失效
标题翻译：具有可旋转的第一显影部件的图像形成装置和具有部分地覆盖第一显影部件的壳体的固定的第二显影部件
公开(公告)号：US6047149A
公开(公告)日：2000-04-04
申请号：US348221
申请日：1994-11-28
申请人： Katsuhiko Nishimura , Kimio Nakahata , Masuo Yamazaki , Masami Takeda , Hiromichi Yamada , Tatsuya Nakamura , Tohru Saitou , Tohru Kosaka , Takashi Shibuya , Yasuo Yoda , Masahide Hirai
发明人： Katsuhiko Nishimura , Kimio Nakahata , Masuo Yamazaki , Masami Takeda , Hiromichi Yamada , Tatsuya Nakamura , Tohru Saitou , Tohru Kosaka , Takashi Shibuya , Yasuo Yoda , Masahide Hirai
IPC分类号： G03G15/00 , G03G15/01 , G03G21/00 , G03G21/16
CPC分类号： G03G15/0126 , G03G2215/0174
摘要： An image forming apparatus including a rotatable developing member having a plurality of developing devices for developing an image bearing member at a first developing station, and a second single developing device arranged upstream of the rotatable developing member for developing the image bearing member exclusively at a second developing station different from the first developing station. The second developing device has a cover portion covering the rotatable developing member, and a portion of the cover portion is disposed at a position spaced apart from a rotation axis of the rotatable developing member by a predetermined length in a horizontal direction away from the image bearing member. The rotatable developing member rotates in an opposite direction with respect to the direction of rotation of the image bearing member to prevent toner from scattering toward the optical system.
摘要翻译：一种图像形成装置，包括具有多个用于在第一显影站显影图像承载部件的显影装置的可旋转显影部件和设置在可转动显影部件上游的第二单一显影装置，用于仅在第二显影步骤发展站不同于第一个发展站。第二显影装置具有覆盖可旋转显影构件的盖部分，并且盖部分的一部分设置在远离可转动显影构件的旋转轴线的距离图像承载的水平方向上预定长度的位置会员。可旋转的显影构件相对于图像承载构件的旋转方向沿相反的方向旋转，以防止调色剂向光学系统散射。

9. 发明授权

US5159393A Image forming apparatus having transfer device and image bearing member traveling at different speeds 失效
标题翻译：具有转印装置和图像承载部件以不同速度行进的图像形成装置
公开(公告)号：US5159393A
公开(公告)日：1992-10-27
申请号：US561075
申请日：1990-08-01
申请人： Koichi Hiroshima , Yukihiro Ohzeki , Junji Araya , Yasushi Sato , Tatsunori Ishiyama , Kimio Nakahata , Koichi Tanigawa , Akihiko Takeuchi , Takayasu Yuminamochi , Yoshiro Tsuchiya
发明人： Koichi Hiroshima , Yukihiro Ohzeki , Junji Araya , Yasushi Sato , Tatsunori Ishiyama , Kimio Nakahata , Koichi Tanigawa , Akihiko Takeuchi , Takayasu Yuminamochi , Yoshiro Tsuchiya
IPC分类号： G03G15/16
CPC分类号： G03G15/167
摘要： An image forming apparatus includes a movable image bearing member, an image forming device for forming the image bearing member, and an image transfer device contactable to the image bearing member at an image transfer position. The transfer device transfers the image formed by the image forming device onto a transfer material while the transfer material is conveyed through the transfer position together with the image bearing member, wherein the transfer device has a hardness of 20-40 degrees (Asker-C), and it is pressed to the image bearing member at a pressure of 50-200 g/cm.sup.2, and wherein a peripheral speed of the transfer device at the transfer position during a transfer operation is higher than a peripheral speed of the image bearing member at the transfer position.
摘要翻译：图像形成装置包括可动图像承载部件，用于形成图像承载部件的图像形成装置，以及在图像转印位置可与图像承载部件接触的图像转印装置。转印装置将图像形成装置形成的图像转印到转印材料上，同时转印材料与图像承载部件一起输送通过转印位置，其中转印装置具有20-40度的硬度（Asker-C）并且以50-200g / cm 2的压力被压向图像承载部件，并且其中转印操作期间转印位置处的转印装置的圆周速度高于图像承载部件的圆周速度转移位置。

10. 发明授权

US4484811A Apparatus for forming an image on a recording member 失效
标题翻译：用于在记录部件上形成图像的装置
公开(公告)号：US4484811A
公开(公告)日：1984-11-27
申请号：US329018
申请日：1981-12-09
申请人： Kimio Nakahata , Hatsuo Tajima , Naoki Iwami , Shunichi Masuda , Katsuichi Shimizu , Yoshihiro Kawatsura , Koji Suzuki , Yoshikazu Yokomizo
发明人： Kimio Nakahata , Hatsuo Tajima , Naoki Iwami , Shunichi Masuda , Katsuichi Shimizu , Yoshihiro Kawatsura , Koji Suzuki , Yoshikazu Yokomizo
IPC分类号： G03G15/00 , G03G15/06 , G03G15/30
CPC分类号： G03G15/5037 , G03G15/065 , G03G15/30
摘要： The image forming method is executed by projecting a light image on a rotatable recording member to consecutively form electrostatic latent images corresponding to the light image, developing the latent images, projecting a predetermined amount of light onto a non-imaged area present between two consecutive latent images on the recording member to form an electrostatic image, detecting potential of the electrostatic image, and controlling the development of the latent images next to the electrostatic image detected during the detection of the potential in response to the detection results. This method is performed in the image forming apparatus which includes a rotatable recording member, processing units for projecting a light image onto the recording member to consecutively form electrostatic latent images corresponding to the light image, a developer unit for developing the latent images, a voltage applying circuit for applying a voltage to the developer unit, a projecting unit for projecting a predetermined amount of light onto a non-imaged area present between two consecutive latent images on the recording member, a detector for detecting surface potential of the non-imaged area, and a controller for controlling the voltage applying circuit in response to detection output from the detector in the development of the latent image next to the non-imaged area in the developer unit.
摘要翻译：图像形成方法通过将光图像投射在可旋转的记录部件上来连续地形成与光图像相对应的静电潜像，显影潜像，将预定量的光投射到存在于两个连续的潜在的非成像区域之间记录部件上的图像以形成静电图像，检测静电图像的电位，并且响应于检测结果控制在检测到电位期间检测到的静电图像旁边的潜像的显影。该方法在包括可旋转记录部件的图像形成装置中进行，用于将光图像投影到记录部件上以连续形成与光图像相对应的静电潜像的处理单元，用于显影潜像的显影单元，电压用于向显影剂单元施加电压的施加电路，用于将预定量的光投射到存在于记录构件上的两个连续潜像之间的非成像区域上的投影单元，用于检测非成像区域的表面电位的检测器以及控制器，用于在显影单元中的非成像区域旁边的潜像的显影中响应于来自检测器的检测输出来控制电压施加电路。

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