公开(公告)号：US5270484A

公开(公告)日：1993-12-14

申请号：US757638

申请日：1991-09-11

申请人： Hiroaki Tsuchiya ,  Keishi Ohsawa ,  Yuji Sakemi ,  Kenichiro Waki ,  Nobuyuki Ito ,  Takehiro Takano ,  Yoshiro Tomikawa

发明人： Hiroaki Tsuchiya ,  Keishi Ohsawa ,  Yuji Sakemi ,  Kenichiro Waki ,  Nobuyuki Ito ,  Takehiro Takano ,  Yoshiro Tomikawa

IPC分类号： G03G15/08 ,  G03G15/09 ,  G03G15/06

CPC分类号： G03G15/0822 ,  G03G15/08 ,  G03G15/09

摘要： An ultrasonic oscillation is applied in the neighborhood of one end of a guide member for supporting and guiding a powder, so that a transverse proceeding wave is generated in the guide member. The powder moves from the other end of the guide member toward a position of the applied ultrasonic oscillation under the action of this proceeding wave.

摘要翻译： 在用于支撑和引导粉末的引导构件的一端的附近施加超声波振荡，使得在引导构件中产生横向前进波。 在该波动的作用下，粉末从引导部件的另一端向施加的超声波振荡的位置移动。

公开(公告)号：US5267007A

公开(公告)日：1993-11-30

申请号：US562658

申请日：1990-08-03

申请人： Akira Watanabe ,  Yuji Sakemi ,  Masahiro Itoh

发明人： Akira Watanabe ,  Yuji Sakemi ,  Masahiro Itoh

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0942

摘要： A developing apparatus is provided with a container for containing a developer having magnetic particles. A rotatable member is rotatable in contact with the developer in the container. The rotatable member is supported in the container by a bearing. A magnetic member encloses at least a portion of the rotatable member at a position adjacent to the bearing. The rotatable member comprises a ferromagnetic material disposed at least at a portion facing the magnetic member. The ferromagnetic material is magnetized by the magnetic member, and a magnetic field formed between the magnetic member and the ferromagnetic material forms a magnetic brush of the developer between the magnet member and the rotatable member.

摘要翻译： 显影装置设置有用于容纳具有磁性颗粒的显影剂的容器。 可旋转构件可旋转地与容器中的显影剂接触。 可旋转构件通过轴承支撑在容器中。 磁性构件将可旋转构件的至少一部分包围在与轴承相邻的位置处。 可旋转构件包括至少设置在面向磁性构件的部分处的铁磁材料。 铁磁材料被磁性部件磁化，形成在磁性部件和铁磁性材料之间的磁场在磁体部件和可转动部件之间形成显影剂的磁刷。

公开(公告)号：US4954404A

公开(公告)日：1990-09-04

申请号：US251780

申请日：1988-10-03

申请人： Masahiro Inoue ,  Hatsuo Tajima ,  Yuji Sakemi ,  Kenji Okado

发明人： Masahiro Inoue ,  Hatsuo Tajima ,  Yuji Sakemi ,  Kenji Okado

IPC分类号： G03G15/01 ,  G03G13/01 ,  G03G13/09

CPC分类号： G03G13/09 ,  G03G13/013

摘要： A method of reverse development for depositing the toner particles to the light potential area of a photosensitive member. The developer used contains magnetic carrier particles and toner particles. An alternating electric field is formed in the developing position or zone. A relative volumetric ratio Q (%) of the magnetic carrier particles in the developing position satisfies 15.0.ltoreq.Q.ltoreq.28.0. The relative volumetric ratio is defined asQ=(M/h).times.(1/.rho.).times.C.sigma./(T+C)where M (g/cm.sup.2) is an amount of applied developer on a developing sleeve surface per unit area, h (cm) is a height of space in the developing position, .rho. (g/cm.sup.3) is a true density of the magnetic carrier particles, C/(T+C) (%) is a weight ratio of the carrier particles in the developer on the surface of the sleeve, and .sigma. is a ratio of a peripheral speed of the sleeve relative to the peripheral speed of the photosensitive member.

摘要翻译： 一种用于将调色剂颗粒沉积到感光构件的光电势区域的反向显影方法。 使用的显影剂包含磁性载体颗粒和调色剂颗粒。 在显影位置或区域形成交变电场。 显影位置中的磁性载体颗粒的相对体积比Q（％）满足15.0≤Q≤28.0。 相对体积比定义为Q =（M / h）x（1 / rho）xC sigma /（T + C）其中M（g / cm2）是每单位面积在显影套筒表面上施加的显影剂的量， h（cm）是显影位置的高度，rho（g / cm3）是磁性载体颗粒的真实密度，C /（T + C）（％）是载体颗粒的重量比 显影剂在套筒的表面上，西格玛是套筒的圆周速度相对于感光构件的圆周速度的比率。

公开(公告)号：US4844008A

公开(公告)日：1989-07-04

申请号：US69301

申请日：1987-07-01

申请人： Yuji Sakemi ,  Katsumi Kurematsu

发明人： Yuji Sakemi ,  Katsumi Kurematsu

IPC分类号： G03G15/09

CPC分类号： G03G15/09

摘要： A developing method and apparatus using toner particles and magnetic carrier particles includes disposing a developer carrying member in associated with a latent image bearing member for bearing an image to be developed so as to form a developing zone, providing stationary magnetic poles of different polarities behind the developer carrying member, providing developer regulating zone where a layer of the developer including a mixture of toner particles and magnetic carrier particles is formed on the developer carrying member with a regulated layer thickness, the developer regulating zone beam disposed between the magnetic poles along a surface of the developer carrying member and immediately upstream of the developing zone with respect to movement of the developer layer, and applying electric field between the latent image bearing member and the developer carrying member in the developing zone.

摘要翻译： 使用调色剂颗粒和磁性载体颗粒的显影方法和装置包括将与显影剂承载构件相关联的显影剂承载构件设置成用于承载要显影的图像以形成显影区，从而提供不同极性的固定磁极 显影剂承载构件，提供显影剂调节区，其中包含调色剂颗粒和磁性载体颗粒的混合物的显影剂层形成在具有调节层厚度的显影剂承载构件上，显影剂调节区光束沿着表面设置在磁极之间 的显影剂承载构件并且相对于显影剂层的移动紧邻显影区上游，并且在显影区域中的潜像承载构件和显影剂承载构件之间施加电场。

公开(公告)号：US4748474A

公开(公告)日：1988-05-31

申请号：US899400

申请日：1986-08-22

申请人： Katsumi Kurematsu ,  Kenichi Takeda ,  Yuji Sakemi

发明人： Katsumi Kurematsu ,  Kenichi Takeda ,  Yuji Sakemi

IPC分类号： G03G5/05 ,  G03G9/08 ,  G03G9/097 ,  G03G13/09 ,  G03G13/26 ,  G03G21/00 ,  G03G21/10

CPC分类号： G03G21/0005 ,  G03G13/09 ,  G03G9/09791

摘要： An image forming method and apparatus using an image bearing member, movable along an endless path, for bearing a toner image and having a critical surface tension of not more than 33 dyne/cm, wherein, the toner image formed on the image bearing member by a developer containing toner not less than 70% of which has a particle size of 1-5 microns, and lubricant in an amount not less than 0.5% by weight of the toner, and the image bearing member is cleaned by removing the toner image remaining on the image bearing member.

摘要翻译： 一种图像形成方法和装置，使用图像承载部件，其沿着环形路径移动，用于承载调色剂图像，并且具有不大于33达因/厘米的临界表面张力，其中，所述图像承载部件上形成的调色剂图像由 含有不小于70％粒度为1-5微米的调色剂的显影剂和不少于调色剂重量的0.5％的润滑剂，并且通过除去剩余的调色剂图像来清洁图像承载部件 在图像承载部件上。

公开(公告)号：US06418291B1

公开(公告)日：2002-07-09

申请号：US09708591

申请日：2000-11-09

申请人： Yuji Sakemi

发明人： Yuji Sakemi

IPC分类号： G03G1508

CPC分类号： G03G15/0844

摘要： An image forming apparatus has an image bearing member bearing an electrostatic image thereon. A developing device develops the electrostatic image on the image bearing member by a developer having a toner and a carrier. A transferring device transfers a toner image on the image bearing member to a transferring material. A cleaning device cleans a residual toner on the image bearing member after the transfer. A carrying device carries the developer in the developing device to the cleaning device.

摘要翻译： 图像形成装置具有在其上承载静电图像的图像承载部件。 显影装置通过具有调色剂和载体的显影剂显影图像承载部件上的静电图像。 转印装置将图像承载部件上的调色剂图像转印到转印材料上。 清洁装置在转印之后清洁图像承载部件上的残留调色剂。 携带装置将显影装置中的显影剂携带到清洁装置。

公开(公告)号：US05999777A

公开(公告)日：1999-12-07

申请号：US989030

申请日：1997-12-11

申请人： Koji Masuda ,  Yuji Sakemi ,  Takao Ogata ,  Kazuhiro Hasegawa

发明人： Koji Masuda ,  Yuji Sakemi ,  Takao Ogata ,  Kazuhiro Hasegawa

IPC分类号： G03G15/01 ,  G03G15/06

CPC分类号： G03G15/0126 ,  G03G2215/0174 ,  G03G2215/0643

摘要： An image forming apparatus includes an image bearing member for bearing an electrostatic latent image; a first developing device for developing the electrostatic latent image on the image bearing member; a second developing device, faced to the image bearing member and having a movable developer carrying member for carrying toner and carrier, for effecting development after a first developed image provided by the first developing device passes through a position where the developer carrying member is faced to the image bearing member; and a preventing device for forming an alternating electric field between the developer carrying member and the image bearing member, while the second developing device is at reset to prevent the carrier of the second developing device from rubbing the first developed image.

摘要翻译： 图像形成装置包括用于承载静电潜像的图像承载部件; 用于在图像承载部件上显影静电潜像的第一显影装置; 第二显影装置，面对图像承载部件并具有用于承载调色剂和载体的可移动的显影剂承载部件，用于在由第一显影装置提供的第一显影图像通过显影剂承载部件面对的位置之后进行显影 图像承载部件; 以及用于在显影剂承载构件和图像承载构件之间形成交变电场的防止装置，同时第二显影装置被复位以防止第二显影装置的载体摩擦第一显影图像。

公开(公告)号：US5669050A

公开(公告)日：1997-09-16

申请号：US365034

申请日：1994-12-28

申请人： Yuji Sakemi ,  Koji Amemiya ,  Takeshi Menjo ,  Masahiro Inoue ,  Masami Izumizaki

发明人： Yuji Sakemi ,  Koji Amemiya ,  Takeshi Menjo ,  Masahiro Inoue ,  Masami Izumizaki

IPC分类号： G03G15/06 ,  G03G15/09 ,  G03G21/00

CPC分类号： G03G15/065 ,  G03G15/0907

摘要： An image forming apparatus includes an image bearing member for bearing an electrostatic image; a developer carrying member, opposed to the image bearing member, for carrying a developer containing toner; bias voltage applying device for applying a developing bias voltage to the developer carrying member, the bias voltage satisfying: ##EQU1## V1 (V): a voltage applying force to the toner toward the developer carrying member away from the image bearing member;T1 (sec): a time period of application of the voltage V1;V2 (V): a voltage applying force to the toner away from the developer carrying member toward the image bearing member;T2 (sec): a time period of application of the voltage V2;T3 (V): a time period of application of a voltage V3 which is (V1+V2)/2;d (m): distance between the image bearing member and the developer carrying member.

摘要翻译： 图像形成装置包括用于承载静电图像的图像承载部件; 显影剂承载构件，与图像承载构件相对，用于承载含有调色剂的显影剂; 偏置电压施加装置，用于向显影剂承载构件施加显影偏压，该偏置电压满足以下条件： T3>（133d2 / T2 | V2-V1 |）-1/2T2 V1（V） 朝向显影剂承载构件的调色剂远离图像承载部件; T1（sec）：施加电压V1的时间段; V2（V）：向显影剂承载构件朝向图像承载构件的向调色剂供电的电压; T2（秒）：施加电压V2的时间段; T3（V）：施加（V1 + V2）/ 2的电压V3的时间段; d（m）：图像承载部件与显影剂承载部件之间的距离。

公开(公告)号：US5365319A

公开(公告)日：1994-11-15

申请号：US25177

申请日：1993-03-02

申请人： Yuji Sakemi ,  Masami Izumizaki

发明人： Yuji Sakemi ,  Masami Izumizaki

IPC分类号： G03G15/08 ,  G03G21/00

CPC分类号： G03G15/0849 ,  G03G15/0853 ,  G03G15/0855 ,  G03G15/0893

摘要： The present invention provides an image forming apparatus wherein first information corresponding to toner density of two-component developer including toner and carrier particles is detected by a first sensor, second information corresponding to density of the two-component developer is detected by a second sensor, and an amount of toner to be replenished to the two-component developer is controlled on the basis of outputs of the first and second sensors.

摘要翻译： 本发明提供一种图像形成装置，其中通过第一传感器检测对应于包括调色剂和载体颗粒的双组分显影剂的调色剂浓度的第一信息，通过第二传感器检测对应于双组分显影剂的浓度的第二信息， 并且基于第一和第二传感器的输出来控制要补充到双组分显影剂的调色剂量。

公开(公告)号：US5327339A

公开(公告)日：1994-07-05

申请号：US3944

申请日：1993-01-19

申请人： Kenichi Takeda ,  Yuji Sakemi

发明人： Kenichi Takeda ,  Yuji Sakemi

IPC分类号： G03G9/08 ,  G03G13/01 ,  G03G13/09 ,  H04N1/29 ,  H04N1/40 ,  H04N1/405 ,  H04N1/50 ,  G01D15/14 ,  G01D9/42 ,  G03G15/09

CPC分类号： G03G9/0819 ,  G03G13/013 ,  G03G13/09 ,  H04N1/29 ,  H04N1/40037 ,  H04N1/4056 ,  H04N1/506

摘要： There is provided an image forming method, including: gradation-processing an image signal based on a halftone image to output a pulse-width-modulated signal; forming a latent image on a latent image-bearing member on the basis of the pulse-width-modulated signal; and developing the latent image with a developer comprising a toner to reproduce the halftone image; wherein the toner has a volume average particle size of M and comprises toner particles having a particle size of r; and has a volume-basis distribution such that it comprises 90% by volume or more of toner particles satisfying M2

摘要翻译： 提供了一种图像形成方法，包括：基于半色调图像对图像信号进行灰度处理，以输出脉冲宽度调制信号; 基于脉宽调制信号在潜像承载部件上形成潜像; 并用包含调色剂的显影剂显影潜像以再现所述半色调图像; 其中所述调色剂具有M的体积平均粒径，并且包含粒度为r的调色剂颗粒; 并且具有体积基础分布，使得其包含满足M2