公开(公告)号：US06963702B2

公开(公告)日：2005-11-08

申请号：US10740468

申请日：2003-12-22

申请人： Gerald M. Fletcher ,  Christian O. Abreu

发明人： Gerald M. Fletcher ,  Christian O. Abreu

IPC分类号： G03G15/16 ,  G03G13/00 ,  G03G21/00 ,  G03G21/14

CPC分类号： G03G15/1645

摘要： Current density to copy substrates of varying widths if monitored and controlled in the electrostatic transfer unit of an electrostatic reproduction device. Current density through a copy substrate is appropriately adjusted to compensate for the presence of end leakage current effect to a receptor. Voltage supplied to a current generation unit in an electrostatic transfer unit is controlled independent of the characteristic properties of the copy substrate. Image reproduction quality is maintained in an electrostatic reproduction device even as the width of the copy substrate changes and in the presence of end leakage current effect.

摘要翻译： 如果在静电复制设备的静电转印单元中监测和控制，则复印不同宽度的衬底的电流密度。 适当地调节通过复制衬底的电流密度以补偿对受体的端漏电流效应的存在。 提供给静电转印单元中的电流产生单元的电压独立于复制衬底的特性而被控制。 即使复印基板的宽度发生变化，并且存在端漏电流效应，图像再现质量也保持在静电再现装置中。

公开(公告)号：US06761978B2

公开(公告)日：2004-07-13

申请号：US09833507

申请日：2001-04-11

申请人： Ralph A. Mosher ,  T. Edwin Freeman ,  Theodore Lovallo ,  Damodar M. Pai ,  John F. Yanus ,  Timothy J. Fuller ,  Markus R. Silvestri ,  Gerald M. Fletcher ,  Antonio DeCrescentis ,  Ihor W. Tarnawskyj

发明人： Ralph A. Mosher ,  T. Edwin Freeman ,  Theodore Lovallo ,  Damodar M. Pai ,  John F. Yanus ,  Timothy J. Fuller ,  Markus R. Silvestri ,  Gerald M. Fletcher ,  Antonio DeCrescentis ,  Ihor W. Tarnawskyj

IPC分类号： B32B2734

CPC分类号： C09J9/02 ,  C08L77/00 ,  C09J177/00 ,  C09J177/02 ,  C09J177/06 ,  Y10T428/31725

摘要： An adhesive having polyamide and an electrically conductive filler dispersed or contained therein, for use in bonding components of electrostatographic, contact electrostatic, digital and other like printing machines.

摘要翻译： 具有分散或包含在其中的聚酰胺和导电填料的粘合剂，用于粘合静电，接触静电，数字和其它类似印刷机的部件。

公开(公告)号：US5734954A

公开(公告)日：1998-03-31

申请号：US646204

申请日：1996-05-07

申请人： Elliott A. Eklund ,  Gerald M. Fletcher ,  Dan A. Hays

发明人： Elliott A. Eklund ,  Gerald M. Fletcher ,  Dan A. Hays

IPC分类号： G03G15/08

CPC分类号： G03G15/0803 ,  G03G2215/0621 ,  G03G2215/0643

摘要： An apparatus for developing a latent image recorded on a surface, including a housing defining a chamber storing a supply of developer material including toner and carrier beads. A toner donor member is spaced from the surface and is adapted to transport toner to a region opposed from the surface. A magnetic roller conveys the toner material in the chamber of the housing onto the donor member. An electrode member is spaced near the surface of a donor roll, the electrode member electrically biased by a power supply to detach toner from the donor member as to form a toner cloud for developing the latent image. A power supply controller, in communication with the power supply, is adapted to adjust the electrode member electrical biasing to avoid air breakdown induced contamination of the electrode member with toner.

摘要翻译： 一种用于显影记录在表面上的潜像的装置，包括限定容纳包含调色剂和载体珠的显影剂材料供应的腔室的壳体。 调色剂供体构件与表面间隔开并且适于将调色剂输送到与表面相对的区域。 磁性辊将外壳的腔室中的调色剂材料传送到供体构件上。 电极构件在供体辊的表面附近间隔开，电极构件由电源电偏压以从施主构件分离调色剂，以形成用于显影潜像的调色剂云。 与电源通信的电源控制器适于调节电极部件的电偏压，以避免空气击穿引起电极部件与调色剂的污染。

公开(公告)号：US5428429A

公开(公告)日：1995-06-27

申请号：US811866

申请日：1991-12-23

申请人： Gerald M. Fletcher

发明人： Gerald M. Fletcher

IPC分类号： G03G15/01 ,  G03G15/16 ,  G03G15/00

CPC分类号： G03G15/1605

摘要： An apparatus for enabling a laterally conductive, resistive backed photoconductive intermediate transfer member in an electrophotographic printing apparatus. The printing apparatus includes a toner transfer system having an intermediate transfer belt comprising a laterally conductive resistive substrate with a pre-transfer grounding device and a transfer charging device. A ground potential bias is applied to the intermediate transfer belt prior to entering a transfer nip region to generate low transfer fields therein. Subsequently, the laterally conductive resistive layer of the intermediate surface is provided with a biasing voltage, generating high transfer fields in the transfer nip. In an alternative embodiment, a post-transfer bias is applied to the intermediate transfer belt for substantially enhancing the transfer fields in the transfer nip.

摘要翻译： 一种用于在电子照相打印设备中实现横向导电的，抗电阻的光导中介转印部件的设备。 印刷装置包括具有中间转印带的调色剂转印系统，该中间转印带包括具有预转印接地装置的侧向导电电阻基板和转印充电装置。 在进入转印压区之前，将地电位偏压施加到中间转印带，以在其中产生低转印场。 随后，中间表面的横向导电电阻层设置有偏置电压，在转印压区中产生高转印场。 在替代实施例中，将转印后偏压施加到中间转印带上，以显着增强转印辊隙中的转印场。

公开(公告)号：US5406359A

公开(公告)日：1995-04-11

申请号：US125730

申请日：1993-09-24

申请人： Gerald M. Fletcher

发明人： Gerald M. Fletcher

IPC分类号： G03G15/01 ,  G03G15/14 ,  G03G15/16

CPC分类号： G03G15/0194 ,  G03G2215/0119

摘要： An image forming apparatus forms a multi-colored image on an image receiving member. The image forming apparatus has a plurality of imaging devices, an image support device and a transferring device. Each imaging device has an imaging drum having a photoconductive layer, a charging device, an exposing device, developing device, a toner charging device and a transferring device. Each imaging device forms and transfers a charged toner image to the image support device. In another embodiment the image forming apparatus has a plurality of imaging devices, an image support device, a plurality of first charging devices and a transferring device. Each one of the plurality of imaging devices produces a toned image. The image support device receives the plurality of toned images from the plurality of imaging devices. The plurality of imaging devices are spaced along a first direction of the image support device. Each one of the first charging devices charges each of the toned images into a charged toned image on the image support device. Each one of the charging devices is located downstream from each of the imaging devices in the first direction. The plurality of charging toned images forms a multi-toned image. The transferring device transfers the multi-toned image on the image support device to the image receiving member.

摘要翻译： 图像形成装置在图像接收部件上形成多色图像。 图像形成装置具有多个成像装置，图像支持装置和转印装置。 每个成像装置具有具有光电导层的成像鼓，充电装置，曝光装置，显影装置，调色剂充电装置和转印装置。 每个成像装置形成并将已充电的调色剂图像传送到图像支持装置。 在另一个实施例中，图像形成装置具有多个成像装置，图像支持装置，多个第一充电装置和转印装置。 多个成像装置中的每一个产生调色图像。 图像支持装置从多个成像装置接收多个调色图像。 多个成像装置沿着图像支持装置的第一方向间隔开。 每个第一充电装置将每个调色图像充电到图像支持装置上的带电色调图像中。 每个充电装置在第一方向上位于每个成像装置的下游。 多个充电调色图像形成多色图像。 传送装置将图像支持装置上的多色图像传送到图像接收部件。

公开(公告)号：US5282006A

公开(公告)日：1994-01-25

申请号：US986315

申请日：1992-12-07

申请人： Gerald M. Fletcher

发明人： Gerald M. Fletcher

IPC分类号： G03G15/16

CPC分类号： G03G15/169

摘要： An apparatus for transferring a developed toner image from an image bearing surface to a support substrate including a corona generating device for establishing a transfer field, and a pressure treatment apparatus for compacting the toner image on the image bearing surface. The pressure treatment apparatus substantially prevents premature transfer of toner across air gaps between the image bearing surface and the support substrate.

摘要翻译： 一种用于将显影的调色剂图像从图像承载表面转移到包括用于建立转印场的电晕产生装置的支撑基板的装置，以及用于压实图像承载表面上的调色剂图像的压力处理装置。 压力处理装置基本上防止了调色剂过度转印到图像承载表面和支撑衬底之间的气隙中。

公开(公告)号：US4901114A

公开(公告)日：1990-02-13

申请号：US220408

申请日：1988-06-28

申请人： Delmer G. Parker ,  Michael D. Thompson ,  Gerald M. Fletcher

发明人： Delmer G. Parker ,  Michael D. Thompson ,  Gerald M. Fletcher

IPC分类号： G03G13/01 ,  G03G13/08 ,  G03G15/22 ,  G03G15/00

CPC分类号： G03G13/08 ,  G03G13/013 ,  G03G15/04045 ,  G03G15/221 ,  G03G2215/0013 ,  G03G2215/0495 ,  Y10S101/29

摘要： Disclosed is an electronic printer employing tri-level xerography to superimpose two images with perfect registration during the single pass of a charge retentive member past the processing stations of the printer. One part of the composite image is formed using MICR toner, while the other part of the image is printed with less expensive black, or color toner. For example, the magnetically readable information on a check is printed with MICR toner and the rest of the check in color or in black toner that is not magnetically readable.

摘要翻译： 公开了一种采用三级静电复印技术的电子打印机，在电荷保持部件通过打印机的处理站的单次通过期间，将完美配准的两张图像叠加。 使用MICR调色剂形成合成图像的一部分，而图像的另一部分用较便宜的黑色或彩色调色剂印刷。 例如，支票上的磁性可读信息用MICR调色剂打印，其余的支票彩色或黑色调色剂不能磁读取。

公开(公告)号：US4533230A

公开(公告)日：1985-08-06

申请号：US461074

申请日：1983-01-26

申请人： Gerald M. Fletcher ,  Robert M. Jacobs ,  Kenneth W. Pietrowski

发明人： Gerald M. Fletcher ,  Robert M. Jacobs ,  Kenneth W. Pietrowski

IPC分类号： G03G15/02 ,  H01T19/00

CPC分类号： G03G15/0291

摘要： A discharge apparatus for use in applying a uniform electrostatic charge to a charge retentive surface. Specifically, the apparatus has an array of pin or needle electrodes for negatively charging the surface. The electrodes are coupled to a pulsed d.c. power supply designed to cause them to operate at sufficiently high current densities to insure stable output therefrom yet due to the pulsing stability is achieved at relatively low current levels. Thus, operation at higher current densities for shorter intervals, for example, at half duty achieves output stability at lower current levels.

摘要翻译： 一种用于将均匀静电电荷施加到电荷保持表面的放电装置。 具体地，该装置具有用于对表面负电荷的针或针电极阵列。 电极连接到脉冲直流 电源设计成使得它们以足够高的电流密度工作以确保其稳定的输出，而由于脉冲稳定性在相对低的电流水平下实现。 因此，以更短的间隔（例如，半值）的较高电流密度的操作在较低电流水平下实现输出稳定性。

公开(公告)号：US4092021A

公开(公告)日：1978-05-30

申请号：US792950

申请日：1977-05-02

申请人： Gerald M. Fletcher

发明人： Gerald M. Fletcher

IPC分类号： G03G15/00 ,  B65H29/54

CPC分类号： G03G15/6529 ,  Y10S271/90

摘要： In an electrostatographic copier in which a copy member bearing an unfused and electrically disturbable image is transported on a conductive vacuum guide member and then removed from the conductive guide member, the improvement wherein a smooth conductive baffle is electrically connected and sufficiently closely spaced from said guide member to provide a low electrostatic field zone between the baffle and the guide member for the movement therebetween of the copy member, and its removal from the guide member without electrical disturbance of the image, wherein the opposing baffle and guide member have similar and opposite diverging radii of curvature in the copy removal area. Means for automatically moving the baffle in coordination with the movement of said copy member are also shown.

摘要翻译： 在静电复印机中，其中承载未熔融和电扰动图像的复制构件在导电真空引导构件上传输并且然后从导电引导构件移除，其中光滑导电挡板电连接并且与所述引导件足够紧密地间隔开的改进 构件，以在挡板和引导构件之间提供低静电场区，用于在复制构件之间移动，并且在导电构件之间移动，而没有图像的电气干扰，其中相对的挡板和引导构件具有相似和相对的发散 复印区域的曲率半径。 还示出了与所述复制构件的运动协调地自动移动挡板的装置。