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公开(公告)号：US06444960B1
公开(公告)日：2002-09-03
申请号：US10045173
申请日：2002-01-11
申请人： Alberto Rodriguez , John Stephen Facci , Heiko Rommelmann , Scott Weber , Joseph David La Russa , Jing Quing Song , Chris Snelling , Kenneth W. Pietrowski
发明人： Alberto Rodriguez , John Stephen Facci , Heiko Rommelmann , Scott Weber , Joseph David La Russa , Jing Quing Song , Chris Snelling , Kenneth W. Pietrowski
IPC分类号： H05B326
CPC分类号： B41J2/41 , G03G15/323
摘要： A method and apparatus for heating a charging unit to an appropriate temperature in a uniform manner is provided. In accordance with one example embodiment of the present invention, a heater for use in a charger includes a base. First and second contacts are disposed on the base. A heating element couples the first contact and the second contact. The heating element has an energy density that increases approximately exponentially from a first energy density at locations distal from the first and second heat sink locations to a relatively higher second energy density at locations proximal to the first and second heat sink locations. The heater, according to further embodiments of the present invention, is disposed on an opposite side of the substrate layer from the AC electrode layer, and underneath the charger.
摘要翻译： 提供了一种以均匀的方式将充电单元加热至适当温度的方法和装置。 根据本发明的一个示例性实施例，一种用于充电器的加热器包括底座。 第一和第二触点设置在基座上。 加热元件将第一触点和第二触点相耦合。 加热元件的能量密度从远离第一和第二散热器位置的位置处的第一能量密度大致指数地增加到靠近第一和第二散热器位置的位置处的相对较高的第二能量密度。 根据本发明的另外的实施例的加热器设置在基底层与AC电极层相反的一侧，并且位于充电器的下方。
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公开(公告)号：US06308032B1
公开(公告)日：2001-10-23
申请号：US09664012
申请日：2000-09-19
申请人： Scott D. Weber , Kenneth W. Pietrowski , Joseph D. LaRussa , John S. Facci , Heiko Rommelmann , Alberto Rodriguez , Christopher Snelling
发明人： Scott D. Weber , Kenneth W. Pietrowski , Joseph D. LaRussa , John S. Facci , Heiko Rommelmann , Alberto Rodriguez , Christopher Snelling
IPC分类号： G03G1502
CPC分类号： G03G15/0258
摘要： A rotatable charging apparatus includes a length extending between a first end and a second end, with the rotatable charging apparatus centered about an axis parallel to the length. The rotatable charging apparatus outer periphery forms N apparatus positions. One charging device is fixed to each of N−1 apparatus positions. The remaining (Nth) apparatus position is devoid of a charging device, thus forming an “empty” charging device position. A host printing machine selectively causes the rotatable charging apparatus to rotate about its axis thereby selectively position any of its N−1 charging devices to face a proximately-located photosensitive element. When a problem exists with the current charging device, or when the total number of operating hours of the current charging device exceeds a fixed threshold, the printing machine causes the rotatable charging apparatus to rotate from its current charging device to position a new charging device facing the photosensitive element. Also, the printing machine causes the rotatable charging apparatus to rotate from its current charging device to the empty charging device position facing the photosensitive element when a power-down or hard-stop condition exists in the printing machine.
摘要翻译： 可旋转充电装置包括在第一端和第二端之间延伸的长度，其中可旋转充电装置围绕平行于该长度的轴线居中。 可旋转充电装置外周形成N个装置位置。 一个充电装置固定在N-1个装置位置。 剩余的（第N）装置位置没有充电装置，从而形成“空”充电装置位置。 主机打印机选择性地使可旋转充电装置围绕其轴线旋转，从而选择性地将其任何N-1充电装置定位成面向近似位置的感光元件。 当当前的充电装置出现问题时，或当当前充电装置的总的工作时数超过固定的阈值时，印刷机使可旋转的充电装置从其当前的充电装置转动以将新的充电装置朝向 感光元件。 此外，当打印机中存在断电或硬停止状态时，印刷机使可旋转充电装置从其当前充电装置旋转到面向感光元件的空充电装置位置。
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公开(公告)号：US5778288A
公开(公告)日：1998-07-07
申请号：US891960
申请日：1997-07-14
CPC分类号： G03G15/0157 , G03G15/0163 , G03G2215/0174
摘要： A color REaD IOI system in which a light source illuminates the photoreceptor so as to erase that photoreceptor after the development of a first toner followed by a high slope AC corona system which recharges both the photoreceptor and first developed toner before exposure and development of the next color image.
摘要翻译： 一种彩色READ IOI系统，其中光源照亮感光体，以便在显影第一调色剂之后，然后是高曝光和显影下一个再现充电感光体和第一显影调色剂的高斜率AC电晕系统之后擦除该感光体 彩色图像。
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公开(公告)号：US5613172A
公开(公告)日：1997-03-18
申请号：US519872
申请日：1995-08-25
CPC分类号： G03G15/0105 , G03G15/0266 , G03G15/0291
摘要： Printing machines and systems which incorporate recharging stations comprised of two corona generating devices which act together to recharge a previously developed photoreceptor to a predetermined potential. The first corona generating device recharges the photoreceptor's surface to a greater absolute potential than a predetermined potential which the surface is to have after being recharged. The second corona generating device reduces the photoreceptor's surface to the potential that it is to have. The second corona generating device is comprised of a plurality of spaced apart coronodes which each can impress charges on the photoreceptor's surface. The second corona generating device receives electrical inputs and applies DC potentials to the coronodes such that adjacent coronodes have opposite polarities.
摘要翻译： 包括由两个电晕发生装置组成的再充电站的印刷机器和系统，其一起起作用以将先前发展的感光体再充电到预定电位。 第一电晕发生装置将感光体的表面再充电到比充电后的表面具有的预定电位更大的绝对电位。 第二电晕发生装置将感光体的表面减小到其具有的潜力。 第二电晕发生装置由多个间隔开的冠状体组成，每个能够在感光体的表面上施加电荷。 第二电晕发生装置接收电输入并且将DC电势施加到冠状体，使得相邻的冠状体具有相反的极性。
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公开(公告)号：US6034368A
公开(公告)日：2000-03-07
申请号：US110422
申请日：1998-07-06
CPC分类号： G03G15/0266 , G03G15/0291 , G03G2215/017
摘要： In an electrostatographic imaging apparatus employing at least one charging device, in an electrostatic charge process involving the creation of latent electrostatic images, A method for controlling corona current generation by said at least one charging device is disclosed. The method comprising the steps of: generating an AC current and an AC voltage with a power supply; measuring the steady state negative half cycle of current, filtering capacitive current spikes from said negative half cycle current measurement and generating a corona current feedback signal in response to said filtering step; and dynamically adjusting the AC voltage in response to the corona current feedback signal so that the steady state negative half cycle of current measured in said measuring step remains constant.
摘要翻译： 在采用至少一个充电装置的静电成像装置中，在涉及产生静电潜像的静电荷工艺中，公开了一种用于控制由所述至少一个充电装置产生电晕电流的方法。 该方法包括以下步骤：用电源产生交流电流和交流电压; 测量电流的稳态负半周期，从所述负半周电流测量中滤除电容电流尖峰并响应于所述滤波步骤产生电晕电流反馈信号; 并且响应于电晕电流反馈信号动态地调整AC电压，使得在所述测量步骤中测量的电流的稳态负半周期保持恒定。
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6.发明授权Pre-pretransfer treatment to increase transfer latitude in tri-level xerography 失效预先转运处理以增加三级静电复印中的转移纬度
公开(公告)号：US5351113A
公开(公告)日：1994-09-27
申请号：US179176
申请日：1994-01-10
CPC分类号： G03G15/169 , G03G15/0131
摘要： Pre pretransfer treatment for multiple toner toner images increases the operating latitude for pretransfer/transfer. In one embodiment of the invention, a pre pretransfer corona device is used to drive the tribos of two multiple toner images toward each other prior to pretransfer. A single constant current corona discharge device is used in this embodiment. Subsequent pretransfer treatment serves to reduce the delta tribo between the two images thereby providing an operating latitude of 3 micro coul/g.
摘要翻译： 多次调色剂调色剂图像的预预先转印处理增加了预转印/转印的操作纬度。 在本发明的一个实施例中，预转印电晕装置用于在预转印之前彼此朝向彼此驱动两个多个调色剂图像的三维。 在本实施例中使用单个恒流电晕放电装置。 随后的预转印处理用于减少两个图像之间的三角摩擦，从而提供3微克/克的操作纬度。
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公开(公告)号：US6097915A
公开(公告)日：2000-08-01
申请号：US311870
申请日：1999-05-14
CPC分类号： G03G15/0291
摘要： In an electrostatographic imaging apparatus employing at least one charging device, scorotron which consists of one or more fine wires supported on insulated blocks spaced between the photoconductive surface and a conductive or insulative surface parallel to it. A screen or grid is interposed between the corona wires and the photoconductive surface and the grid is maintained at a potential roughly equal to the potential desired on the photoconductive surface. The scorotrons geometry, the individual wires are from 1/2 to 11/2 inches apart and are spaced from the grid by about 3/4 of an inch. Field enhancement electrode(s) are placed on the screen and are biased at the same potential as the screen. The field enhancement electrode(s) enhance electrical performance.
摘要翻译： 在采用至少一个充电装置的静电照相成像装置中，由在一个或多个细线之间的细丝组成，该绝缘支撑在光电导表面之间隔开的绝缘块和与其平行的导电或绝缘表面之间。 屏幕或栅格插在电晕丝和光电导表面之间，并且栅格保持在大致等于光电导表面上所需的电位的电位。 扫帚几何形状，单根线材分别为+ E，fra 1/2 + EE至1 + E，间距为1/2 + EE英寸，与网格间隔约+ E，3/4 + EE 英寸。 场增强电极放置在屏幕上并被偏置在与屏幕相同的电位。 场增强电极增强电性能。
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公开(公告)号：US5581330A
公开(公告)日：1996-12-03
申请号：US347616
申请日：1994-11-30
申请人： Kenneth W. Pietrowski , Samuel W. Ing , Roger L. Bullock , Thomas Fleck , Charles H. Tabb , Zhao-Zhi Yu , Jeffrey J. Folkins , Daniel M. Bray , Cyril G. Edmunds
发明人： Kenneth W. Pietrowski , Samuel W. Ing , Roger L. Bullock , Thomas Fleck , Charles H. Tabb , Zhao-Zhi Yu , Jeffrey J. Folkins , Daniel M. Bray , Cyril G. Edmunds
CPC分类号： G03G15/0157 , G03G15/0163
摘要： In a multi-color imaging apparatus utilizing a recharge step between two image creation steps for conditioning a charge retentive surface pursuant to forming the second of the two images, a voltage sensitive corona generating device having a high characteristic slope described in a graph of the current delivered to a charge receiving surface (I) vs. grid minus charge receiving surface voltage (V) is used to both reduce the residual toner voltage across the previously toned image, and to charge the toned and untoned areas of the charge retentive surface to a substantially uniform level so that developability conditions for the subsequent image are improved.
摘要翻译： 在利用两个图像创建步骤之间的再充电步骤的多色成像装置中，用于根据形成两个图像中的第二个来调节电荷保持表面;电压敏感电晕产生装置，其具有当前电流图 传送到电荷接收表面（I）与电网减去电荷接收表面电压（V）的电荷被用于两者都减少先前调色的图像上的残余调色剂电压，并且将电荷保持性表面的调色区域和未调色区域充电到 基本均匀的水平，从而提高后续图像的显影性条件。
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9.发明授权
公开(公告)号：US5420677A
公开(公告)日：1995-05-30
申请号：US789506
申请日：1991-11-08
CPC分类号： G03G15/1675
摘要： A method and apparatus for extending the electrical life of a bias transfer roll is disclosed. The apparatus includes a biasing member comprising a bias roll member or other charging device for reversing current flow through the bias transfer roll. The apparatus of the present invention permits reversal of current flow through a bias transfer roll to replenish ions depleted therefrom during the transfer process.
摘要翻译： 公开了一种用于延长偏转传送辊的电寿命的方法和装置。 该装置包括偏置构件，该偏置构件包括偏置辊构件或用于反转通过偏压传送辊的电流的其它充电装置。 本发明的装置允许通过偏置传输辊的电流反转，以补充在转移过程中从其中耗尽的离子。
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10.发明授权
公开(公告)号：US5016055A
公开(公告)日：1991-05-14
申请号：US548351
申请日：1990-07-02
IPC分类号： G03G15/16
CPC分类号： G03G15/16
摘要： An electrophotographic device includes a flexible belt-type charge retentive member, bearing a developed latent image and brings a sheet of paper or other transfer member into intimate contact with the charge retentive surface at a transfer station for electrostatic transfer of toner from the charge retentive surface to the sheet. At the transfer station, a resonator suitable for generating vibratory energy is arranged in line contact with the back side of the charge retentive, to uniformly apply vibratory energy to the charge retentive member surface at a position opposite the transfer coronode or peak transfer field, or slightly upstream therefrom. Toner is released from the electrostatic and mechanical forces adjering it to the charge retentive surface at the line contact position.
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