Wire-less hybrid scavengeless development system
    41.
    发明授权
    Wire-less hybrid scavengeless development system 有权
    无线混合扫描开发系统

    公开(公告)号:US06223013B1

    公开(公告)日:2001-04-24

    申请号:US09211264

    申请日:1998-12-14

    IPC分类号: G03G1508

    摘要: An apparatus for developing a latent image recorded on an imaging surface, including a housing defining a reservoir storing a supply of developer material including toner. A donor member is spaced from the imaging surface, for transporting toner on an outer surface of the donor member to a region opposed from the imaging surface. A mag roll loads toner onto a region of the outer surface of the donor member. A charging device ion charges the toner loaded on the region of the donor member. An AC/DC voltage supply for biasing the donor member positioned in close proximity to the imaging member to detach toner from the donor member as to form a toner cloud for developing the latent image. A second charging device discharges and removes residual toner on the region of the donor and returning the toner to the reservoir.

    摘要翻译: 一种用于显影记录在成像表面上的潜像的装置,包括限定存储包含调色剂的显影剂材料供应的储存器的壳体。 供体构件与成像表面间隔开,用于将供体构件的外表面上的调色剂输送到与成像表面相对的区域。 磁辊将调色剂负载到供体构件的外表面的区域上。 充电装置离子对装载在供体构件的区域上的调色剂进行充电。 一种AC / DC电压源,用于偏置定位在成像构件附近的施主构件,以从供体构件上分离调色剂,以形成用于显影潜像的调色剂云。 第二充电装置排出并去除供体区域上的残留调色剂并将调色剂返回到储存器。

    Low-Friction single component development apparatus
    42.
    发明授权
    Low-Friction single component development apparatus 有权
    低摩擦单组分开发设备

    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

    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。

    Development system
    43.
    发明授权
    Development system 失效
    开发体系

    公开(公告)号:US5734955A

    公开(公告)日:1998-03-31

    申请号:US716076

    申请日:1996-09-16

    IPC分类号: B41J2/525 G03G15/08

    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。

    Electroded donor roll for a scavengeless developer unit
    45.
    发明授权
    Electroded donor roll for a scavengeless developer unit 失效
    用于无清扫显影剂单元的电镀供体辊

    公开(公告)号:US5172170A

    公开(公告)日:1992-12-15

    申请号:US851411

    申请日:1992-03-13

    IPC分类号: G03G15/08

    摘要: An apparatus in which a donor roll advances toner to an electrostatic latent image recorded on a photoconductive member. A plurality of electrical conductors are located in grooves in the donor roll. The electrical conductors are spaced from one another and adapted to be electrically biased in the development zone to detach toner from the donor roll so as to form a toner cloud in the development zone. In the development zone, toner is attracted from the toner cloud to the latent image. In this way, the latent image is developed with toner.

    摘要翻译: 供体辊将调色剂提前到记录在感光体上的静电潜像的装置。 多个电导体位于供体辊的凹槽中。 电导体彼此间隔开并且适于在显影区域中被电偏置以从供体辊分离调色剂,从而在显影区域中形成调色剂云。 在显影区域,调色剂从调色剂云吸引到潜像。 以这种方式,潜像用调色剂显影。

    Scavengeless development system having toner deposited on a doner roller
from a toner mover
    46.
    发明授权
    Scavengeless development system having toner deposited on a doner roller from a toner mover 失效
    清洁剂显影系统具有从调色剂移动器沉积在二辊上的调色剂

    公开(公告)号:US5128723A

    公开(公告)日:1992-07-07

    申请号:US695662

    申请日:1991-05-06

    摘要: An apparatus which develops an electrostatic latent image recorded on a photoconductive member with toner. Fluidized toner is transported from one end of the developer housing to the other end. An electrical bias is applied between the toner mover and the donor roller so as to attract toner to the donor roller. A rotating rod resiliently urged into contact with the donor roller charges and meters the toner on the donor roller. Electrically biased wires in the development zone between the photoconductive member and the donor roller detach toners from the donor roll so as to form a toner powder cloud in the development zone. Detached toner from the toner powder cloud develops the latent image.

    摘要翻译: 利用调色剂显影记录在感光体上的静电潜像的装置。 流化调色剂从显影剂外壳的一端输送到另一端。 在调色剂移动器和供体辊之间施加电偏压,以将调色剂吸引到供体辊。 弹性地推动与供体辊接触的旋转杆对供体辊上的调色剂进行充电和计量。 光电导体和供体辊之间的显影区中的电偏置电线从供体辊分离调色剂,以便在显影区中形成调色剂粉末云。 从调色剂粉末中分离的调色剂形成潜像。

    Method and apparatus for creating contrasting images at substantially
full contrast voltage
    47.
    发明授权
    Method and apparatus for creating contrasting images at substantially full contrast voltage 失效
    用于以基本上全对比度电压产生对比图像的方法和装置

    公开(公告)号:US4913348A

    公开(公告)日:1990-04-03

    申请号:US288319

    申请日:1988-12-22

    申请人: Dan A. Hays

    发明人: Dan A. Hays

    IPC分类号: G03G15/01

    CPC分类号: G03G15/0126 G03G15/0121

    摘要: An electrostatic charge pattern is formed on a charge retentive surface. The charge pattern comprises charged image areas and discharged background areas. The fully charged image areas are at a voltage level of approximately -500 volts and the background is at a voltage level of approximately -100 volts. A spatial portion of the image area is used to form a first image with a narrow development zone while other spatial portions are used to form other images which are distinct from the first image in some physical property such as color or magnetic state. The development is rapidly turned on and off by a combination of AC and DC electrical switching. Thus, high spatial resolution multi-color development in the process direction can be obtained in a single pass of the charge retentive surface through the processing stations of a copying or printing apparatus. Also, since the voltages representing all images are at the same voltage polarity unipolar toner can be employed.In order to effect development of all images with a unipolar toner, each of the development system structures is capable of selective actuation without physical movement.

    Apparatus, process for removal of toner particles
    48.
    发明授权
    Apparatus, process for removal of toner particles 失效
    装置,去除调色剂颗粒的方法

    公开(公告)号:US4428665A

    公开(公告)日:1984-01-31

    申请号:US318884

    申请日:1981-11-06

    申请人: Dan A. Hays

    发明人: Dan A. Hays

    IPC分类号: G03G21/10 G03G21/00

    摘要: The present invention is directed to a process and an improved apparatus for simultaneously removing and transporting undesirable residual insulating toner particles from a flexible imaging member comprising in operative relationship, a cleaning roll means containing on its surface insulating carrier particles, said cleaning roll being charged to a predetermined potential, a deflected flexible imaging member means containing residual insulating toner particles thereon, a cleaning zone encompassed by and situated between said cleaning roll means and said deflected flexible imaging member means, magnet means contained in the cleaning roll means, and magnetic strips contained in the outer periphery of said cleaning roll means.

    摘要翻译: 本发明涉及一种工艺和改进的装置,用于从包括操作关系的柔性成像构件同时移除和输送不期望的残留绝缘调色剂颗粒,清洁辊装置在其表面上包含绝缘载体颗粒,所述清洁辊被装入 预定电位,偏转的柔性成像构件装置,其上包含残留的绝缘调色剂颗粒,由所述清洁辊装置和所述偏转的柔性成像构件装置包围并位于所述清洁辊装置之间的清洁区域,包含在清洁辊装置中的磁性装置和包含的磁条 在所述清洁辊装置的外周。

    Hybrid electrophotographic development with toner induction charged via AC induced conductivity
    50.
    发明授权
    Hybrid electrophotographic development with toner induction charged via AC induced conductivity 失效
    通过AC诱导电导率充电的调色剂感应的混合电子照相显影

    公开(公告)号:US06965746B2

    公开(公告)日:2005-11-15

    申请号:US10463501

    申请日:2003-06-17

    IPC分类号: G03G15/09 G03G15/08

    CPC分类号: G03G15/0907

    摘要: A method is provided for developing a latent electrostatic image with marking particles through the process steps of: moving the surface of an image receiving member at a predetermined process speed; storing a supply of developer material comprising toner and carrier beads in a reservoirs said toner comprising electrically conductive core particles with an electrically insulating coating thereover; transporting marking particles onto an outer surface of a donor member to be delivered to a development zone adjacent the image receiving member; and inductive charging electrically conductive core particles of said toner onto said outer surface of said donor member prior to the development zone to a predefined charge level. Other features of the present invention will become apparent as the following description proceeds and upon reference to the drawings.

    摘要翻译: 提供了一种用于通过以下工艺步骤使具有标记颗粒的静电潜像显影的方法:以预定处理速度移动图像接收构件的表面; 将包含调色剂和载体珠的显影剂材料供应储存在储存器中,所述调色剂包含其上具有电绝缘涂层的导电芯颗粒; 将标记颗粒运送到供体构件的外表面上,以将其传送到邻近图像接收构件的显影区; 以及在所述显影区之前将所述调色剂的导电芯颗粒感应充电到所述供体构件的所述外表面上至预定电荷水平。 参照附图,本发明的其他特征将变得显而易见。