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1. 发明授权

US4784928A Reusable electrophotographic element 失效
标题翻译：可重复使用的电子照相元件
公开(公告)号：US4784928A
公开(公告)日：1988-11-15
申请号：US902851
申请日：1986-09-02
申请人： Hsin-Chia Kan , Bruce R. Benwood , William J. Staudenmayer
发明人： Hsin-Chia Kan , Bruce R. Benwood , William J. Staudenmayer
IPC分类号： G03G5/05 , G03G5/14
CPC分类号： G03G5/0503
摘要： Image transfer properties of an electrophotographic imaging element are improved by heterogeneously dispersing, as a separate phase within the photoconductive surface layer of the element, finely divided particles of an abhesive substance which is nonconductive and spreadable and to which toner particles adhere less strongly than to the composition of the surface layer in the abhesive substance. An example of the abhesive substance is a particulate low molecular weight telomer of tetrafluoroethylene.
摘要翻译：电子照相成像元件的图像转印性能通过作为元件的光电导表面层内的分离相分散而分散而得到改善，其是非导电性和可涂覆性的粘合物质的细碎颗粒，并且调色剂颗粒比该粘附物质中表面层的组成。粘性物质的一个实例是四氟乙烯的微粒低分子量调聚物。

2. 发明授权

US5642254A High duty cycle AC corona charger 失效
标题翻译：高占空比AC电晕充电器
公开(公告)号：US5642254A
公开(公告)日：1997-06-24
申请号：US613647
申请日：1996-03-11
申请人： Bruce R. Benwood , John W. May , Martin J. Pernesky
发明人： Bruce R. Benwood , John W. May , Martin J. Pernesky
IPC分类号： G03G15/02 , H01T19/00
CPC分类号： G03G15/0266 , G03G15/0291
摘要： This invention pertains to an AC charger (10) in which an AC voltage waveform applied to a corona wires (12) has a duty cycle of between 50% and 90%. This increases the efficiency of the charger without increasing the signal-to-noise ratio. In one embodiment, the AC voltage waveform is asymmetric.
摘要翻译：本发明涉及一种交流充电器（10），其中施加到电晕丝（12）上的交流电压波形的占空比在50％至90％之间。这增加了充电器的效率而不增加信噪比。在一个实施例中，AC电压波形是不对称的。

3. 发明授权

US6075965A Method and apparatus using an endless web for facilitating transfer of a marking particle image from an intermediate image transfer member to a receiver member 失效
标题翻译：使用环形腹板的方法和装置便于将标记颗粒图像从中间图像转印构件传递到接收器构件
公开(公告)号：US6075965A
公开(公告)日：2000-06-13
申请号：US900696
申请日：1997-07-25
申请人： Thomas N Tombs , Bruce R. Benwood
发明人： Thomas N Tombs , Bruce R. Benwood
IPC分类号： G03G15/16
CPC分类号： G03G15/167 , G03G15/162 , G03G2215/1623
摘要： A reproduction method and apparatus including a primary image forming member, and a substantially cylindrical intermediate image transfer member operatively associated with the primary image forming member whereby a marking particle image formed on the primary image forming member can be electrostatically transferred from the primary image forming member to the intermediate image transfer member (ITM). An endless web arrangement is provided in cooperative association with the ITM. The endless web arrangement includes an endless web and a plurality of support rollers about which the endless web is entrained. A transfer nip for transfer of an image to receiver member is defined between the ITM and the endless web. An electrical transfer field is provided for electrostatically transferring a marking particle image to a receiver member brought into intimate contact with the ITM in the nip.Wrap of the endless web about the ITM is preferably greater than the nip length or area to ensure intimate contact of the receiver member in the nip and reduce pre-nip transfer and pre-nip ionization.
摘要翻译：一种再现方法和装置，包括主图像形成构件和与主要成像构件可操作地相关联的基本上圆柱形的中间图像转印构件，由此可以在主图像形成构件上形成的标记粒子图像从主图像形成构件静电转印到中间图像转印部件（ITM）。提供与ITM合作关联的无尽网络安排。环形纤维网布置包括环形纤维网和多个支撑辊，环形纤维网绕其周围夹带。在ITM和环形网之间定义用于将图像传送到接收器构件的转印辊隙。提供电传送场，用于将标记粒子图像静电转印到与辊隙中的ITM紧密接触的接收器构件。关于ITM的环形卷材的包装优选地大于辊隙长度或面积，以确保接收部件在辊隙中的紧密接触并减少预辊隙间传送和预压区电离。

4. 发明授权

US5724636A Method and apparatus for transferring a toner image to a receiver sheet using an electrical bias 失效
标题翻译：使用电偏压将调色剂图像转印到接收片的方法和装置
公开(公告)号：US5724636A
公开(公告)日：1998-03-03
申请号：US745728
申请日：1996-11-12
申请人： Thomas N. Tombs , John W. May , Bruce R. Benwood
发明人： Thomas N. Tombs , John W. May , Bruce R. Benwood
IPC分类号： G03G15/16
CPC分类号： G03G15/1675 , G03G2215/1614
摘要： A method and apparatus for electrostatically transferring a toner image from a toner image bearing member to a receiver sheet is disclosed. A receiver sheet is moved within a nip defined between a transfer roller having a resistive outer layer and a toner image bearing member supporting a toner image. To provide for transfer, there is applied to the resistive layer a first contact voltage to establish a post-nip electrical voltage distribution to a post-nip region of the transfer roller that is immediately downstream of an in-nip region. The post-nip electrical bias is accomplished by having the first contact voltage be applied at first points on the outer layer of the transfer roller, the first points being within or proximate the post-nip region. There is also applied to the resistive layer a second contact voltage to establish a pre-nip electrical voltage distribution to a pre-nip region of the transfer roller immediately up-strean of the in-nip region. This pre-nip electrical voltage distribution is accomplished by having the contact voltage be applied at second points on the outer layer of the transfer roller, the second points being within or proximate the pre-nip region. Because of the resistivity of the outer layer, the pre-nip and post-nip voltage distributions establish an in-nip electrical field suitable for transfer of the toner image to a receiver sheet.
摘要翻译：公开了一种用于将调色剂图像从调色剂图像承载部件静电转印到接收片材的方法和装置。在具有电阻外层的转印辊和支撑调色剂图像的调色剂图像承载部件之间的辊隙内移动接收片。为了提供传输，向电阻层施加第一接触电压，以建立紧接在辊隙区域下游的转印辊的后压区区域的后压区电压分布。后压区电偏压是通过在转印辊的外层上的第一点处施加第一接触电压来实现的，第一点在压印后区域内或附近。还向电阻层施加第二接触电压，以建立预压区电压分布到转印辊的预压区域，其中压区间紧密地向上。这种预压区电压分布是通过使接触电压施加在转印辊的外层上的第二点上，第二点在预压区之内或附近来实现的。由于外层的电阻率，预压区和压区间电压分布建立适合于将调色剂图像转印到接收片上的夹内电场。

5. 发明授权

US5666193A Intermediate transfer of small toner particles 失效
标题翻译：中等转移的小调色剂颗粒
公开(公告)号：US5666193A
公开(公告)日：1997-09-09
申请号：US605340
申请日：1996-02-09
申请人： Donald S. Rimai , Thomas N. Tombs , Bruce R. Benwood , David J. Quesnel
发明人： Donald S. Rimai , Thomas N. Tombs , Bruce R. Benwood , David J. Quesnel
IPC分类号： G03G15/01 , G03G15/16
CPC分类号： G03G15/162 , Y10T428/24405
摘要： A small particle toner image is formed on a primary image member (11), such as a photoconductor; electrostatically transferred to an intermediate transfer member (22); and then electrostatically transferred to a receiving sheet. The intermediate transfer member includes a base of a relatively compliant material having an embedded coating of beads with a volume weighted average diameter of less than about 3 microns, and preferably between 0.5 and 1.0 micron. These beads cover at least 40% of the intermediate image member.
摘要翻译：在诸如光电导体的主图像构件（11）上形成小颗粒调色剂图像; 静电转移到中间转印部件（22）上; 然后静电转印到接收纸上。中间转印构件包括相对柔顺材料的基底，其具有体积加权平均直径小于约3微米，优选在0.5至1.0微米之间的珠的嵌入涂层。这些珠覆盖至少40％的中间图像构件。

6. 发明授权

US5839024A Corona charging of a charge retentive surface 失效
标题翻译：充电保持性表面的电晕充电
公开(公告)号：US5839024A
公开(公告)日：1998-11-17
申请号：US858752
申请日：1997-05-19
申请人： John W. May , Martin J. Pernesky , Bruce R. Benwood
发明人： John W. May , Martin J. Pernesky , Bruce R. Benwood
IPC分类号： G03G15/02
CPC分类号： G03G15/0291
摘要： A corona charger for depositing an electrostatic charge on a charge retentive surface, without the creation of sheeting defects, the charger includes a coronode, and a power supply operating in cycles and providing in each of the cycles electrical power to the coronode to produce a net positive charging current with voltage to the coronode from the power supply operating in a portion of each cycle with a positive polarity to generate positive corona emissions. The power supply operates so that an AC component of the voltage provided by the power supply has a positive polarity in the range of about 60% to about 85% of each cycle. When operating in a broader range of greater than 50% but less than 100%, DC equivalent current to the coronode is controlled below a value causing sheeting.
摘要翻译：一种电晕充电器，用于在电荷保持性表面上沉积静电电荷，而不产生薄片缺陷，充电器包括冠状结构和循环操作的电源，并且在每个循环中提供电源至该电极以产生网状正电充电电流与来自电源的电源的电压以每个周期的一部分工作，具有正极性，以产生正电晕放电。电源工作使得由电源提供的电压的AC分量在每个周期的大约60％至大约85％的范围内具有正极性。当在大于50％但小于100％的较宽范围内工作时，对于冠状体的DC等效电流控制在低于导致片材的值。

7. 发明授权

US5070369A Electrostatographic method and apparatus for producing multicolor duplex reproductions 失效
标题翻译：用于制备多色双相复制品的静电方法和装置
公开(公告)号：US5070369A
公开(公告)日：1991-12-03
申请号：US304093
申请日：1989-01-31
申请人： Gregory P. Mahoney , Bruce R. Benwood
发明人： Gregory P. Mahoney , Bruce R. Benwood
IPC分类号： G03G15/16 , G03G15/23
CPC分类号： H04N1/00575 , G03G15/1605 , G03G15/1685 , G03G15/234 , H04N1/00602 , H04N1/0061
摘要： A series of single color toner images are formed on one or more image members and transferred in registry to an intermediate member to form multicolor images. A first multicolor image is transferred from the intermediate member to the first side of a copy sheet, the copy sheet is inverted and a second multicolor image is transferred to the second side of the copy sheet. Preferably, the first multicolor image is not fused prior to transfer of the second multicolor image to the copy sheet, and the two multicolor images are fused to the copy sheet simultaneously.
摘要翻译：在一个或多个图像构件上形成一系列单色调色剂图像，并将其注册到中间构件中以形成多色图像。第一多色图像从中间构件传送到复印纸的第一侧，复印纸被反转，第二多色图像被转印到复印纸的第二面。优选地，在将第二多色图像转印到复印纸之前，第一多色图像不融合，并且两个多色图像同时融合到复印纸。

8. 发明授权

US4228480A Electrophotographic apparatus with improved corona charging 失效
标题翻译：具有改善电晕充电的电子照相设备
公开(公告)号：US4228480A
公开(公告)日：1980-10-14
申请号：US11606
申请日：1979-02-12
申请人： Bruce R. Benwood , Paul A. LaChapelle
发明人： Bruce R. Benwood , Paul A. LaChapelle
IPC分类号： G03G15/02 , H01T19/00 , H01T19/04
CPC分类号： H01T19/00 , G03G15/0266 , G03G15/0291
摘要： In-place primary charging of an electrophotographic imaging member is effected by a corona discharge device which employs variably-biased AC energization of its discharge electrode. During a charging period the potential level of the image member is detected by a sensor, and the bias level of electrode energizing source is varied from an initial value above the nominal primary charge potential toward the nominal potential in response to signals from the sensor.
摘要翻译：电子照相成像部件的就地初次充电由电晕放电装置实现，该电晕放电装置对其放电电极采用可变偏置的交流通电。在充电期间，通过传感器检测图像构件的电位电平，并且响应于来自传感器的信号，电极激励源的偏置电平从高于标称主电荷电位的初始值变化到标称电位。

9. 发明授权

US5881347A Biasing method and apparatus for electrostatically transferring an image 失效
标题翻译：用于静电转印图像的偏压方法和装置
公开(公告)号：US5881347A
公开(公告)日：1999-03-09
申请号：US837630
申请日：1997-04-21
申请人： John W. May , Thomas N. Tombs , Bruce R. Benwood
发明人： John W. May , Thomas N. Tombs , Bruce R. Benwood
IPC分类号： G03G15/16 , G03G15/01
CPC分类号： G03G15/1675
摘要： A method and apparatus for electrostatically transferring a toner image from a toner image bearing member (TIBM) to a receiver sheet is disclosed. A receiver sheet is moved within a nip defined between a transfer roller having a resistive outer layer and a toner image bearing member supporting a toner image. To provide for transfer, there is applied an electrical bias to the resistive layer from a conductive member located beneath the resistive layer and in electrical contact with the resistive layer. There are also applied to an outer surface of the resistive layer a first contact voltage to establish an post-nip electrical voltage distribution to a post-nip region of the transfer roller that is immediately downstream of an in-nip region. The post-nip electrical voltage distribution is accomplished by having the first contact voltage be applied at first points on the outer layer of the transfer roller, the first points being within or proximate the post-nip region. There is also applied to the resistive outer layer a second contact voltage to establish an electrical voltage distribution to a pre-nip region of the transfer roller immediately up-stream of the in-nip region. This pre-nip electrical voltage distribution is accomplished by having the contact voltage be applied at second points on the outer layer of the transfer roller, the second points being within or proximate the pre-nip region. The resistivity of the outer layer, the voltage provided to the conductive member, the voltage bias to the TIBM, and the first and second contact voltages establish an in-nip electrical field or voltage suitable for transfer of the toner image to a receiver sheet and for suppression or reduction of pre-nip and post-nip ionization.
摘要翻译：公开了一种用于将调色剂图像从调色剂图像承载部件（TIBM）静电转印到接收片材的方法和装置。在具有电阻外层的转印辊和支撑调色剂图像的调色剂图像承载部件之间的辊隙内移动接收片。为了提供传输，从位于电阻层下方的导电部件与电阻层电阻施加电偏压并与电阻层电接触。还施加到电阻层的外表面的第一接触电压，以建立紧接在压区内下游的转印辊的压区之后的压区后电压分布。后压区电压分布通过在转印辊的外层上的第一点施加第一接触电压，第一点在压印后区域内或附近来实现。还向电阻外层施加第二接触电压，以立即向压区内上游的转印辊的预压区形成电压分布。这种预压区电压分布是通过使接触电压施加在转印辊的外层上的第二点上，第二点在预压区之内或附近来实现的。外层的电阻率，提供给导电构件的电压，对TIBM的电压偏置以及第一和第二接触电压建立适于将调色剂图像转印到接收片上的夹内电场或电压，以及用于抑制或减少预压区和压区后电离。

10. 发明授权

US4245272A Apparatus and method for low sensitivity corona charging of a moving photoconductor 失效
标题翻译：移动光电导体的低灵敏度电晕充电的装置和方法
公开(公告)号：US4245272A
公开(公告)日：1981-01-13
申请号：US34228
申请日：1979-04-30
申请人： Allen J. Rushing , Bruce R. Benwood , Paul A. LaChapelle
发明人： Allen J. Rushing , Bruce R. Benwood , Paul A. LaChapelle
IPC分类号： G03G15/02 , H01T19/00
CPC分类号： H01T19/00 , G03G15/0291
摘要： Primary charging of a moving electrographic photoconductor to a nominal potential level is achieved with low sensitivity to variation in system parameters, such as photoconductor capacitance, photoconductor velocity and/or charger efficiency. Separately-addressed, AC corona discharge units are arranged and predeterminedly biased to first substantially overcharge the photoconductor relative to the nominal potential and then discharge the photoconductor to exit at the nominal potential level.
摘要翻译：将移动的电子照相感光体的主要充电达到标称电位水平，对系统参数的变化具有低灵敏度，例如光电导体电容，光电导体速度和/或充电器效率。单独寻址的AC电晕放电单元被布置和预定地偏置，以首先相对于标称电位基本上过度地对光电导体进行充电，然后放电光电导体以标称电位水平退出。

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