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公开(公告)号：US06665510B1
公开(公告)日：2003-12-16
申请号：US10165705
申请日：2002-06-07
申请人： Mark J. Hirsch
发明人： Mark J. Hirsch
IPC分类号： G03G1508
CPC分类号： G03G15/0808
摘要： An apparatus for developing a latent image recorded on a movable imaging surface, including: a reservoir for storing a supply of developer material; a first donor member and a second donor member, the first and second donor members both being arranged to receive toner particles from the reservoir and to deliver toner particles to the image surface at locations spaced apart from each other in the direction of movement of the imaging surface thereby to develop the latent image thereon; and system for moving the outer surface of first donor member at a first velocity; and system for moving the outer surface of second donor member at a second velocity; wherein the first velocity could be slightly different than the second velocity to reduce a ghosting print defect.
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2.发明授权
公开(公告)号：US5943539A
公开(公告)日：1999-08-24
申请号：US114188
申请日：1998-07-13
IPC分类号： G03G15/08
CPC分类号： G03G15/0803 , G03G2215/0621 , G03G2215/0643
摘要： A developer unit for developing a latent image recorded on an image receiving member with marking particles, to form a developed image, including: a drive mechanism for moving the surface of the image receiving member at a predetermined process speed. A donor member is spaced from the image receiving member and adapted to transport marking particles to a development zone adjacent the image receiving member. A plurality of wires having a predefined tension are positioned in the development zone between the image receiving member and the donor member. A voltage supply to electrically bias the plurality of wires during a developing operation with an alternating current, to detach marking particles from the donor member, forming a cloud of marking particles in the development zone, and developing the latent image with marking particles from the cloud. A controller, responsive to the predefined wire tension, controls a modulation rate of the voltage supply to minimize harmonic resonant vibrations of the plurality of wires.
摘要翻译： 一种显影单元，用于利用标记颗粒显影记录在图像接收构件上的潜像，以形成显影图像，包括：用于以预定处理速度移动图像接收构件的表面的驱动机构。 施主构件与图像接收构件间隔开并适于将标记颗粒运送到邻近图像接收构件的显影区。 具有预定张力的多根线材位于图像接收构件和供体构件之间的显影区域中。 一种电压源，用于在显影操作期间用交流电使多个电线电偏置，从供体构件上分离出标记颗粒，在显影区域形成标记颗粒云，并用云中的标记颗粒显影潜像 。 响应于预定义的线张力的控制器控制电压供应的调制速率以最小化多根电线的谐波共振振动。
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公开(公告)号：US07010239B2
公开(公告)日：2006-03-07
申请号：US10696123
申请日：2003-10-29
申请人： Eric M. Gross , Paul J. McConville , Gerald S. Leclerc , Joseph A. Mastrandrea , Mark J. Hirsch
发明人： Eric M. Gross , Paul J. McConville , Gerald S. Leclerc , Joseph A. Mastrandrea , Mark J. Hirsch
CPC分类号： G03G15/065
摘要： An apparatus for developing a latent image recorded on a movable imaging surface, including: a reservoir for storing a supply of developer material including toner particles, said reservoir including a transport member; a donor member being arranged to receive toner particles from said transport member and to deliver toner particles to the image surface at locations spaced apart from each other in the direction of movement of the imaging surface thereby to develop the latent image thereon; a power supply, connected to said donor member, for biasing said donor member to deliver toner to the image surface during a printing mode of operation; a second power supply, connected to the transport member, for maintaining a predefined voltage difference between the transport member and the donor member such that toner particles are attracted to the donor member from the transport member during a printing mode of operation; a controller for generating a donor member purge signal trigger based on sensed or calculated development conditions; and a power supply controller, responsive to said donor member purge signal, for changing the voltage between the donor member and the transport member during a second mode of operation thereby causing toner to partially or completely transfer back to said transport member and optionally transported to the imaging surface.
摘要翻译： 一种用于显影记录在可移动成像表面上的潜像的装置，包括：用于存储包含调色剂颗粒的显影剂材料供应的储存器，所述储存器包括传送构件; 供体构件被布置成从所述传送构件接收调色剂颗粒并且在成像表面的移动方向上彼此间隔开的位置处将调色剂颗粒输送到图像表面，从而在其上显影潜像; 电源，连接到所述供体构件，用于在打印操作模式期间偏置所述供体构件以将调色剂输送到图像表面; 连接到所述传送构件的第二电源，用于在所述传送构件和所述施主构件之间维持预定的电压差，使得调色剂颗粒在打印操作模式期间从所述传送构件被吸引到所述施主构件; 控制器，用于基于感测或计算的显影条件产生供体成员清洗信号触发; 以及电源控制器，响应于所述供体构件清洗信号，用于在第二操作模式期间改变供体构件和输送构件之间的电压，从而使调色剂部分或完全转移回所述输送构件，并且可选地运送到 成像面。
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4.发明授权
公开(公告)号：US5742884A
公开(公告)日：1998-04-21
申请号：US647783
申请日：1996-05-15
IPC分类号： G03G15/08
CPC分类号： G03G15/0803 , G03G2215/0643
摘要： An apparatus for developing a latent image recorded on a surface, the apparatus includes a housing defining a chamber storing a supply of developer material including toner; a toner donor member spaced from the surface and being adapted to transport toner to a region opposed from the surface; a magnetic brush for conveying the developer material in the chamber of the housing onto the donor member; and a rigid planar porous electrode member spaced near the surface of a donor roll, the electrode member being electrically biased to detach toner from the donor member as to form a toner cloud for developing the latent image.
摘要翻译： 一种用于显影记录在表面上的潜像的装置，该装置包括壳体，其限定存储包含调色剂的显影剂材料供应的腔室; 调色剂供体构件与所述表面间隔开并且适于将调色剂输送到与所述表面相对的区域; 用于将所述壳体的所述显影剂材料输送到所述供体构件上的磁刷; 以及在施主辊的表面附近间隔开的刚性平面多孔电极构件，电极构件被电偏置以从供体构件分离调色剂，以形成用于显影潜像的调色剂云。
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公开(公告)号：US5666619A
公开(公告)日：1997-09-09
申请号：US568108
申请日：1995-12-06
IPC分类号： G03G15/08
CPC分类号： G03G15/0803 , G03G2215/0621 , G03G2215/0643
摘要： A novel wire module support structure for controlling the spacing and edge wire angle of an electrode wire relative to a donor roll in a scavengeless development process is disclosed. A stationary wire support is arc shaped with a rounded edge and is located in close proximity to the donor roll end. This spatial relationship between the donor roll end and the wire support surface optimizes the donor roll surface to wire relationship. The wire support surface may be at a greater or lesser radius than the the donor roll surface. When the wire support surface is located at a larger radius than the donor roll surface, a clamp assembly is used to control the height of the wires with respect to the donor roll surface.
摘要翻译： 公开了一种用于在无清除显影过程中控制电极线相对于供体辊的间距和边缘线角度的新颖的线模块支撑结构。 固定电线支撑件具有圆形边缘的弧形并且位于紧邻供体辊端部。 供体辊端和电线支撑表面之间的这种空间关系优化了供体辊表面与线的关系。 电线支撑表面可以处于比供体辊表面更大或更小的半径。 当电线支撑表面位于比供体辊表面更大的半径时，使用夹具组件来控制电线相对于供体辊表面的高度。
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公开(公告)号：US06580882B2
公开(公告)日：2003-06-17
申请号：US09971164
申请日：2001-10-04
IPC分类号： G03G1508
CPC分类号： G03G15/0851
摘要： A toner maintenance system for an electrophotographic developer unit, including a sump for storing a quantity of developer material comprised of carrier and toner material; a first member for transporting a mixture of developer material and toner particles from the sump, the first member having a voltage applied thereto; a metering blade, positioned closely adjacent to the first member to maintain the compressed pile height of the developer material on first member at a desired level; and a sensor device for measuring the current between the first member and the metering blade, and generating a signal indicative thereof.
摘要翻译： 一种用于电子照相显影剂单元的调色剂维护系统，包括用于储存一定数量的由载体和调色剂材料构成的显影剂材料的贮槽; 用于从所述贮槽运送显影剂材料和调色剂颗粒的混合物的第一构件，所述第一构件具有施加于其上的电压; 计量刀片，定位成紧邻第一构件，以将显影剂材料的压缩绒头高度保持在第一构件上的期望水平; 以及用于测量第一构件和计量刀片之间的电流并且产生指示其的信号的传感器装置。
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公开(公告)号：US5787329A
公开(公告)日：1998-07-28
申请号：US841136
申请日：1997-04-29
申请人： John R. Laing , Edward J. Gutman , J. Stephen Kittelberger , John G. VanDusen , Suresh K. Ahuja , Merlin E. Scharfe , Richard L. Schank , Mark J. Hirsch , Santokh S. Badesha , Arnold W. Henry , George J. Heeks
发明人： John R. Laing , Edward J. Gutman , J. Stephen Kittelberger , John G. VanDusen , Suresh K. Ahuja , Merlin E. Scharfe , Richard L. Schank , Mark J. Hirsch , Santokh S. Badesha , Arnold W. Henry , George J. Heeks
IPC分类号： C09D201/00 , G03G15/08
CPC分类号： G03G15/0803 , G03G2215/0621 , G03G2215/0643
摘要： An apparatus and process for reducing accumulation of toner from the surface of an electrode member in a development unit of an electrostatographic printing apparatus by providing an organic coating on at least a portion of the electrode member.
摘要翻译： 一种用于通过在电极构件的至少一部分上提供有机涂层来减少调色剂从静电印刷装置的显影单元中的电极构件的表面积累的装置和方法。
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8.发明授权
公开(公告)号：US5512981A
公开(公告)日：1996-04-30
申请号：US473179
申请日：1995-06-07
申请人： Mark J. Hirsch
发明人： Mark J. Hirsch
CPC分类号： G03G15/0887 , G03G15/0844
摘要： In an electrophotographic reproduction machine including an image bearing member, latent image devices for forming on the image bearing member electrostatic latent images having a first polarity, and a hybrid development unit for applying to the latent images correct-sign toner particles having a second polarity relatively opposite to the first polarity, a method of automatically purging from the hybrid development unit wrong-sign toner particles having a third polarity relatively the same as the first polarity. The purging method includes the steps of counting and accumulating a number of image forming events performed by the reproduction machine for comparing to a stored predetermined number of such events, and of changing relative electrical bias values for a magnetic roll and for a donor roll within a housing of the development unit from imaging bias values to wrong-sign toner purging bias values so as to cause wrong-sign toner particles to transfer from the magnetic roll to the donor roll. The method also includes the steps of producing an electrostatic field on the image bearing member for causing wrong-sign toner particles to transfer from the donor roll to the image bearing member, and operating a cleaning device in contact with the image bearing member for removing wrong-sign toner particles from the image bearing member.
摘要翻译： 在包括图像承载部件的电子照相复制机中，用于在图像承载部件上形成具有第一极性的静电潜像的潜像装置和用于向潜像施加相对于具有第二极性的正确符号调色剂颗粒的混合显影单元 与第一极性相反的方法是从混合显影单元自动吹扫具有与第一极性相同的第三极性的错误调色剂颗粒的方法。 清洗方法包括以下步骤：计数和累积由再现机执行的多个图像形成事件，用于与存储的预定数量的这种事件进行比较，以及改变磁辊和供体辊内的相对电偏差值 显影单元的壳体从成像偏置值到错误的墨粉清除偏压值，从而使错误的调色剂颗粒从磁辊转移到供体辊。 该方法还包括以下步骤：在图像承载部件上产生静电场，使错误的调色剂颗粒从供体辊转印到图像承载部件上，并操作与图像承载部件接触以清除错误的清洁装置 从图像承载部件中调色剂颗粒。
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公开(公告)号：US07738820B2
公开(公告)日：2010-06-15
申请号：US12100007
申请日：2008-04-09
IPC分类号： G03G15/08
CPC分类号： G03G15/0803 , G03G2215/0643 , Y10T428/292
摘要： A Hybrid Scavengeless Development electrophotographic printing system is provided wherein the electrode wires contain carbon nanotube yarn. The use of carbon nanotube yarn alleviates the problem of fundamental strobing image defects, because the electrodes made from the carbon nanotube yarn can be put at a higher tension to density set point, and thereby achieve fundamental resonance frequencies larger than that obtainable from steel. Additionally the yarn's strength is sufficient to withstand the typical forces it is subjected to in a Hybrid Scavengeless Development environment.
摘要翻译： 提供了一种混合式无光扫描电子照相印刷系统，其中电极线包含碳纳米管纱线。 碳纳米管的使用减轻了由于碳纳米管纱线制成的电极能够在较高的张力至密度设定点而产生基本选通图像缺陷的问题，从而达到比从钢获得的基本共振频率更大的基本共振频率。 此外，纱线的强度足以承受在混合式无风开发环境中经受的典型力。
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公开(公告)号：US06529702B2
公开(公告)日：2003-03-04
申请号：US09915125
申请日：2001-07-25
IPC分类号： G03G2100
CPC分类号： G03G21/0017
摘要： A cleaning blade has a fixed end and a distal cleaning end, with the fixed end maintained in a substantially fixed position. The cleaning blade has a blade cleaning surface arranged for facing a photosensitive element surface of a moving photosensitive element, with the cleaning end arranged to contact and clean the photosensitive element surface. The cleaning blade has a blade temperature. The cleaning blade includes at least one heater for maintaining the blade temperature at a fixed temperature.
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