公开(公告)号：US08824935B2

公开(公告)日：2014-09-02

申请号：US13225905

申请日：2011-09-06

申请人： Hideyasu Seki ,  Yasuyuki Ishii ,  Hideki Kosugi ,  Tetsuro Hirota ,  Masaaki Yamada ,  Atsushi Kurokawa

发明人： Hideyasu Seki ,  Yasuyuki Ishii ,  Hideki Kosugi ,  Tetsuro Hirota ,  Masaaki Yamada ,  Atsushi Kurokawa

IPC分类号： G03G15/08

CPC分类号： G03G15/065 ,  G03G15/0818 ,  G03G2215/0651

摘要： A development device includes a developer container; a rotary cylindrical developer carrier including an outer electrode including multiple electrode portions arranged in a circumferential direction of the developer carrier, an inner electrode provided on an inner circumferential side of the developer carrier from the outer electrode, an insulation layer disposed between the outer electrode and the inner electrode, and a surface layer; and a bias power source to apply a first bias voltage and a second bias voltage to the inner electrode and the outer electrode, respectively. The first bias power source causes an electrical potential difference that changes with time between the inner electrode and the outer electrode to cause the developer to hop on a circumferential surface of the developer carrier. At least one of the first bias voltage and the second bias voltage has a cyclic waveform in which pulse-on time is reduced.

摘要翻译： 显影装置包括显影剂容器; 包括外电极的旋转圆柱形显影剂载体，所述外电极包括沿所述显影剂载体的圆周方向布置的多个电极部分，从所述外电极设置在所述显影剂载体的内周侧上的内电极，设置在所述外电极与所述外电极之间的绝缘层， 内部电极和表面层; 以及分别向内电极和外电极施加第一偏置电压和第二偏置电压的偏置电源。 第一偏置电源引起在内部电极和外部电极之间随时间变化的电位差，以使显影剂在显影剂载体的圆周表面上跳跃。 第一偏置电压和第二偏置电压中的至少一个具有脉冲开启时间减少的循环波形。

公开(公告)号：US20130223891A1

公开(公告)日：2013-08-29

申请号：US13776333

申请日：2013-02-25

申请人： CANON KABUSHIKI KAISHA

发明人： Masato Koyanagi ,  Gosuke Goto ,  Kazutoshi Ishida ,  Masahiro Kurachi

IPC分类号： G03G15/08

CPC分类号： G03G15/0812 ,  G03G15/0818 ,  G03G2215/0651

摘要： An image forming apparatus is provided which includes a development device that has no developer supply member and with which the decrease in density at a back end of a solid image and occurrence of ghosting are suppressed. A development roller having dielectric portions scattered on a surface thereof is provided and components are configured so that the position of the dielectric portions in a triboelectric series is on the same polarity side, relative to a regulating blade, as the normal charge polarity of the toner.

摘要翻译： 提供了一种图像形成装置，其包括不具有显影剂供应构件的显影装置，并且其抑制了实心图像的后端的密度的降低和重影的发生。 提供了具有在其表面上散布的电介质部分的显影辊，并且部件被构造成使得摩擦系列中的电介质部分的位置相对于调节片处于相同的极性侧，作为调色剂的正常充电极性 。

公开(公告)号：US20120195616A1

公开(公告)日：2012-08-02

申请号：US13362347

申请日：2012-01-31

申请人： Kensuke MIYAHARA

发明人： Kensuke MIYAHARA

IPC分类号： G03G15/06

CPC分类号： G03G15/0266 ,  G03G15/0813 ,  G03G2215/0643 ,  G03G2215/0651

摘要： An image forming apparatus includes first photosensitive members, first chargers for charging the first photosensitive members, developer carriers for supplying developer to the first photosensitive members, a first charging-bias applying unit that applies charging biases to the first chargers, development-bias applying units for applying development biases to the corresponding developer carriers, a charging-current sensing unit that separately senses a charging current flowing in each of the first chargers, and a control unit that controls the development biases based on the sensed charging current. When a difference between a reference charging-current value and a detected charging-current value exceeds a predetermined value, if the detected charging-current value is larger than the reference charging-current value, the control unit increases an absolute value of a development bias applied to a developer carrier corresponding to the charger having the difference exceeding the predetermined

摘要翻译： 图像形成装置包括第一感光构件，用于对第一感光构件充电的第一充电器，用于向第一感光构件供应显影剂的显影剂载体，向第一充电器施加充电偏压的第一充电偏压施加单元，显影偏压施加单元 用于将开发偏差应用于相应的开发者载体，分别感测在每个第一充电器中流动的充电电流的充电电流感测单元，以及基于感测的充电电流来控制显影偏压的控制单元。 当参考充电电流值和检测到的充电电流值之间的差超过预定值时，如果检测到的充电电流值大于参考充电电流值，则控制单元增加显影偏压的绝对值 施加到与具有超过预定值的差异的充电器相对应的显影剂载体

公开(公告)号：US20120195614A1

公开(公告)日：2012-08-02

申请号：US13018158

申请日：2011-01-31

申请人： William Y. Fowlkes

发明人： William Y. Fowlkes

IPC分类号： G03G15/08

CPC分类号： G03G15/02 ,  G03G15/0813 ,  G03G2215/0643 ,  G03G2215/0651

摘要： Methods for printing are provided. In one aspect a primary imaging member having a pattern of engine pixel locations with image modulated differences of potential of a first polarity and with first toner having a first toner difference of potential of a second polarity is moved to a second development station. A second development difference of potential of the first polarity at the second development station forms a second net development difference of the second development difference of potential less any image modulated difference of potential at the individual engine pixel location and less any difference of potential relative to ground of any first toner at the individual engine pixel location. The second development difference of potential is less than the first development difference of potential so that second toner that is different from the first toner, is developed onto the first toner using the second net development difference of potential.

摘要翻译： 提供打印方法。 在一个方面，具有具有第一极性的电位的图像调制差异的引擎像素位置的图案和具有第二调色剂的第一调色剂具有第二极性的电位的第一调色剂差异的主要成像构件被移动到第二显影台。 在第二显影站的第一极性的第二发展差异形成了第二显影差异的第二显影差异，减少了在个别发动机像素位置处的任何图像调制的电位差，并且减小了相对于地面的任何潜在电位差 在单个发动机像素位置处的任何第一调色剂。 潜在的第二显影差异小于潜在的第一显影差异，使得与第一调色剂不同的第二调色剂利用第二净显影差电位显影在第一调色剂上。

公开(公告)号：US07783235B2

公开(公告)日：2010-08-24

申请号：US11868698

申请日：2007-10-08

申请人： Takeo Tsukamoto ,  Nobuaki Kondoh ,  Masanori Horike ,  Tomoko Takahashi ,  Masaaki Yamada ,  Hideki Kosugi ,  Ichiro Kadota ,  Yoshinori Nakagawa ,  Yasuyuki Ishii

发明人： Takeo Tsukamoto ,  Nobuaki Kondoh ,  Masanori Horike ,  Tomoko Takahashi ,  Masaaki Yamada ,  Hideki Kosugi ,  Ichiro Kadota ,  Yoshinori Nakagawa ,  Yasuyuki Ishii

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0812 ,  G03G15/0818 ,  G03G2215/0651

摘要： A development apparatus using a hopping method and an image formation apparatus including the development apparatus are disclosed. The development apparatus includes a toner supporting object for supporting and conveying a toner by a movement of the toner supporting object, while the toner is hopping on a surface of the toner supporting object by an electric field; a regulating member made of a flexible material for constituting a toner thickness regulation position; a latent image supporting object for supporting a latent image; and a development position, which is a position of the toner supporting object, that counters the latent image supporting object; wherein the toner is conveyed through the regulation position to the development position where the toner is adhered to the latent image, and wherein one end of the regulating member is supported, and the other end contacts the toner supporting object.

摘要翻译： 公开了一种使用跳频方法的显影设备和包括显影设备的图像形成设备。 显影装置包括调色剂支撑物体，用于通过调色剂支撑物体的移动来支撑和输送调色剂，同时调色剂通过电场在调色剂支撑物体的表面上跳跃; 由用于构成调色剂厚度调节位置的柔性材料制成的调节件; 用于支持潜像的潜像支持对象; 以及显影位置，其是调色剂支撑对象的位置，用于对潜像支撑对象进行计数; 其中所述调色剂通过所述调节位置传送到所述显影位置，其中所述调色剂粘附到所述潜像，并且所述调节构件的一端被支撑，并且所述另一端接触所述调色剂支撑体。

公开(公告)号：US20090297228A1

公开(公告)日：2009-12-03

申请号：US12474883

申请日：2009-05-29

申请人： Masataka MAEDA ,  Kenjiro NISHIWAKI

发明人： Masataka MAEDA ,  Kenjiro NISHIWAKI

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  G03G15/0808 ,  G03G2215/0643 ,  G03G2215/0651

摘要： There is provided a developer carrying device, including a first carrying body having a first electrode group configured to from a traveling electric field while being applied a voltage sequentially and to circulate charged developer through a facing portion with respect to a developer supply target; and a second carrying body having a second electrode group configured to from a traveling electric field while being applied a voltage sequentially and to circulate the developer through a facing part with respect to the first electrode group so that the developer being carried is supplied to the first carrying body.

摘要翻译： 提供了一种显影剂承载装置，包括第一承载体，该第一承载体具有从行进电场构成的第一电极组，同时依次施加电压并使带电显影剂相对于显影剂供给目标通过相对部分循环; 以及具有第二电极组的第二承载体，其被配置为从行进电场依次施加电压并且使显影剂相对于第一电极组通过面对部分循环，使得所携带的显影剂被供应到第一电极组 携带身体

公开(公告)号：US20030099489A1

公开(公告)日：2003-05-29

申请号：US09995654

申请日：2001-11-29

申请人： Xerox Corporation

发明人： Robert J. Meyer ,  Dale R. Mashtare ,  John F. Knapp

IPC分类号： G03G015/09

CPC分类号： G03G15/09 ,  G03G2215/0651

摘要： In a development system including a developer transport adapted for depositing developer material on an imaging surface having an electrostatic latent image thereon, including: a housing defining a chamber storing a supply of developer material comprising soft magnetic toner; a donor member, mounted partially in the chamber and spaced from the imaging surface, for transporting developer on an outer surface thereof to a region opposed from the imaging surface, the donor member having a magnetic assembly having a plurality of poles, a sleeve, enclosing the magnetic assembly, rotating about said magnetic assembly; and a vibrating member positioned in between the donor roll and the sleeve at a predefined position around the donor roll, the vibrating member fluidizing the developer material on the donor member to prevent developer bed freezing, to prevent long-range carrier bead chain formation, and to smooth developer bed height-banding on the donor member before a development zone.

摘要翻译： 在包括适于在其上具有静电潜像的成像表面上沉积显影剂材料的显影剂传输的显影剂传输系统中，包括：壳体，其限定容纳包含软磁性调色剂的显影剂材料供应的室; 施主构件，其部分地安装在所述腔室中并与所述成像表面间隔开，用于将其外表面上的显影剂输送到与所述成像表面相对的区域，所述施主构件具有具有多个极的磁组件，套筒， 所述磁性组件绕所述磁性组件旋转; 以及振动构件，其位于施主辊周围的预定位置处的供体辊和套筒之间，振动构件将供体构件上的显影剂材料流化以防止显影剂床冻结，以防止长距离载体珠链形成，以及 在开发区之前使供体成员上的显影剂床高度平滑。

公开(公告)号：US06208825B1

公开(公告)日：2001-03-27

申请号：US09465850

申请日：1999-12-17

申请人： Dan A. Hays

发明人： Dan A. Hays

IPC分类号： G03G1508

CPC分类号： G03G15/0803 ,  G03G2215/0621 ,  G03G2215/0651

摘要： A low-friction single component development apparatus for developing electrostatic latent images on an image bearing surface is provided. It includes a sump containing a supply of developer material particles; a moveable donor member assembly including a donor member for transporting developer material particles through a development zone; a first combination of AC and DC biases for charging developer material particles in the sump resulting in charged developer material particles having a desired polarity and charge distribution; a second combination of AC and DC biases for providing fringe electric fields for depositing particles of the charged developer material particles onto the donor member; devices for forming a developer material cloud within the development zone for image development; and an electrostatic filtering zone located upstream of the development zone for electrostatically removing wrong-sign charged developer material particles from the donor member.

摘要翻译： 提供了用于在图像承载表面上显影静电潜像的低摩擦单组分显影设备。 它包括一个含有显影剂材料颗粒供应的贮槽; 可移动的供体构件组件，其包括用于将显影剂材料颗粒输送通过显影区的供体构件; 用于向贮槽中的显影剂材料颗粒充电的AC和DC偏压的第一组合，导致具有所需极性和电荷分布的带电显影剂材料颗粒; AC和DC偏压的第二组合，用于提供用于将带电显影剂材料颗粒的颗粒沉积到供体构件上的边缘电场; 用于在图像开发开发区内形成显影剂材料云的装置; 以及位于显影区上游的静电过滤区，用于从供体构件静电除去带错误的带电显影剂材料颗粒。

公开(公告)号：US5745827A

公开(公告)日：1998-04-28

申请号：US829645

申请日：1997-03-31

申请人： Steven C. Hart

发明人： Steven C. Hart

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  G03G2215/0651

摘要： A donor roll for transporting marking particles to an electrostatic latent image recorded on a surface is provided. The donor roll includes a rotatably mounted body and an electrode member mounted on the body. The donor roll further includes a magnetically permeable core external to the body. The core rotates with the body. The core is composed of a plurality of wires. The donor roll further includes an electrically conductive material positioned on the core. The material is electrically connected to the electrode member.

摘要翻译： 提供了用于将标记颗粒传送到记录在表面上的静电潜像的供体辊。 供体辊包括可旋转地安装的主体和安装在主体上的电极构件。 供体辊还包括在身体外部的导磁芯。 核心与身体一起旋转。 芯由多条导线组成。 供体辊还包括定位在芯上的导电材料。 该材料电连接到电极部件。

公开(公告)号：US5734955A

公开(公告)日：1998-03-31

申请号：US716076

申请日：1996-09-16

申请人： Robert J. Gruber ,  Dan A. Hays

发明人： Robert J. Gruber ,  Dan A. Hays

IPC分类号： B41J2/525 ,  G03G15/08

CPC分类号： G03G15/0808 ,  G03G15/0803 ,  G03G15/0887 ,  G03G2215/0174 ,  G03G2215/0621 ,  G03G2215/0651

摘要： An apparatus for developing a latent image recorded on a surface, including a housing defining a chamber storing a supply of toner. A toner donor member is spaced from the image bearing surface and adapted to transport toner to a region opposed from the surface. A charging device is disposed in the chamber for ion charging the toner. An air injection system fluidizes the toner in the chamber. The injection system and a transport member cooperate with one another to define a region wherein a substantially constant quantity of toner having a substantially constant ion charge is deposited on the transport member. The toner is electrostatically transferred from the transport member to the donor member which contains interdigitated electrodes positioned near the surface of a dielectric core roll. An AC voltage is applied between the interdigitated electrodes to detach toner from the donor member so as to form a toner cloud for developing the latent image in an image on image process.

摘要翻译： 一种用于显影记录在表面上的潜像的装置，包括限定容纳调色剂供应的腔室的壳体。 调色剂供体构件与图像承载表面间隔开并且适于将调色剂输送到与表面相对的区域。 充电装置设置在室中用于使调色剂离子充电。 空气注射系统使腔室中的调色剂流化。 注射系统和输送构件彼此配合以限定其中基本上恒定量的具有基本上恒定的离子电荷的调色剂沉积在输送构件上的区域。 调色剂从输送构件静电转移到施主构件，该施主构件包含位于介质芯辊表面附近的叉指电极。 在交叉电极之间施加AC电压，以从供体构件上分离调色剂，以形成用于在图像处理中的图像中显影潜像的调色剂云。