公开(公告)号：EP1708042B1

公开(公告)日：2009-05-13

申请号：EP06111801.4

申请日：2006-03-28

申请人： Xerox Corporation

发明人： Kumar, Ajay ,  Sadik, Jonathan D. ,  Nau, Keith A. ,  Reed, David A. ,  Kjar, Richard L.

IPC分类号： G03G15/08

CPC分类号： G03G15/0844

公开(公告)号：EP1617295A1

公开(公告)日：2006-01-18

申请号：EP05106442.6

申请日：2005-07-14

申请人： Xerox Corporation

发明人： Facci, John S. ,  Kumar, Ajay ,  McGrath, Rachael L. ,  Zona, Michael F. ,  Pietrowsk, Kenneth W.

IPC分类号： G03G15/02

CPC分类号： G03G15/0291 ,  G03G2215/028

摘要： In a xerographic printing apparatus, a scorotron (12) places a uniform charge on a photoreceptor (10) for forming electrostatic latent images. Two conductive pin arrays (30,32) are disposed in a housing defined by sidewalls (36,38) and a grid (34) adjacent the photoreceptor (10). For each array (30,32), the distance to the adjacent sidewall (36,38) is 1.0 to 1.5 the distance to the grid (34).

摘要翻译： 在静电印刷装置中，遮光剂（12）将均匀的电荷置于用于形成静电潜像的感光体（10）上。 两个导电针阵列（30,32）设置在由侧壁（36,38）和邻近感光体（10）的网格（34）限定的壳体中。 对于每个阵列（30,32），到相邻侧壁（36,38）的距离为距栅格（34）的距离为1.0至1.5。

公开(公告)号：EP0917011B1

公开(公告)日：2002-08-07

申请号：EP98121235.0

申请日：1998-11-06

申请人： Xerox Corporation

发明人： Kumar, Ajay ,  Damji, Dhirendra C. ,  Chiesa, Daniel A. ,  Bryant, Jerry W.

IPC分类号： G03G15/02 ,  H01T19/04

CPC分类号： G03G15/0291

公开(公告)号：EP0917024A3

公开(公告)日：2000-05-03

申请号：EP98309144.8

申请日：1998-11-09

申请人： XEROX CORPORATION

发明人： Damji, Dhirendra C. ,  Kumar, Ajay

IPC分类号： G03G21/18

CPC分类号： G03G21/1814 ,  G03G21/105 ,  G03G2221/1624 ,  G03G2221/1648

摘要： An electrostatographic process cartridge (44) detachably mountable into a cavity (42) defined by mated modules forming parts of an electrostatographic reproduction machine. The process cartridge (44) includes a housing having walls (116) defining a partially enclosed process chamber (118); a rotatable cylindrical photoreceptive member (84) mounted within a portion of the process chamber (118) and to the walls. The photoreceptive member (84) has a closed loop path within the process chamber (118) and an image bearing surface for holding a formed toner image. The process cartridge (44) also includes plural electrostatographic process toner image forming and transferring components (76) located along the closed loop path for forming a toner image on, and for transferring such toner image from, the image bearing surface; and a cleaning subassembly (80) located along the closed loop path downstream of the toner image forming and transferring components, for removing and transporting waste toner away from the image bearing surface. The cleaning subassembly (80) includes a curved portion of the walls including a blade mounting surface having a plane forming a blade mounting angle (134) with a tangent (135) to the image bearing surface; a cleaning blade (138) mounted to the mounting surface and having a cleaning edge contacting the image bearing surface at a desired cleaning angle for removing waste toner from the image bearing surface; a seal member (266) mounted into contact with the image bearing surface at a point upstream of the cleaning blade (138) so that the seal member (266), the blade (138), the image bearing surface and the curved portion of the walls, define the cleaning chamber (270); and a troughless waste toner transporting auger (170) mounted for rotation without a trough and directly over the image bearing surface within the cleaning chamber (270) for transporting and moving waste toner axially relative to the photoreceptive member (84) and out of the cleaning chamber (270). The troughless auger (170) has a first end, a second end, and a direction of waste toner movement over the image bearing surface from the first end to the second end a variable pitch for preventing image banding defects from undesirable waste toner accumulations.

公开(公告)号：EP0917012A3

公开(公告)日：2000-05-03

申请号：EP98121377.0

申请日：1998-11-10

申请人： Xerox Corporation

发明人： Damji, Dhirendra C. ,  Bryant, Jerry W. ,  Kumar, Ajay

IPC分类号： G03G15/02 ,  H01T19/04

CPC分类号： B60T8/362 ,  B60T15/027 ,  F15B13/044 ,  G03G15/0291

摘要： A charging apparatus (76) for applying a uniform electrostatic charge to a charge retentive surface is provided. The apparatus includes a housing and an array of pin electrodes (346) supported by the housing and positioned adjacent the surface in a non-contact relationship. The apparatus also includes a generally U shaped shield (312) connected to the housing and at least partially surrounding the array of pin electrodes. The apparatus also includes a grid (336) positioned across distal ends of the shield. The grid (336) defines an effective charge length and an effective grid width. The apparatus also includes a power supply operatively coupled to the pin electrodes for supplying a predetermined current to each of the pin electrode. The power supply provides a predetermined voltage to the grid. At least one of the magnitude of the current, the magnitude of the voltage, the effective charge length, and the effective grid width being selected so as to optimize the charge uniformity, to minimize the sensitivity to photoreceptor grid sensitivity, and to minimize the ozone generated within the charging apparatus.

摘要翻译： 提供了一种用于将均匀的静电电荷施加到电荷保持表面的充电装置。 该装置包括壳体和由壳体支撑并且以非接触关系定位在表面附近的销电极阵列。 该装置还包括连接到壳体并且至少部分地围绕引脚电极阵列的大致U形屏蔽。 该装置还包括跨过护罩的远端定位的格栅。 网格定义了有效的电荷长度和有效的电网宽度。 该装置还包括可操作地耦合到引脚电极的电源，用于向每个引脚电极提供预定电流。 电源为电网提供预定的电压。 选择电流的大小，电压的大小，有效电荷长度和有效电网宽度中的至少一个以便优化电荷均匀性，以使对感光体电感灵敏度的敏感性最小化，并使臭氧最小化 在充电装置内产生。

公开(公告)号：EP0918263A2

公开(公告)日：1999-05-26

申请号：EP98121284.8

申请日：1998-11-09

申请人： Xerox Corporation

发明人： Kumar, Ajay ,  Damji, Dhirendra C. ,  Chiesa, Daniel A. ,  Bryant, Jerry W.

IPC分类号： G03G15/02 ,  G03G21/18

CPC分类号： G03G21/1814 ,  G03G15/0291 ,  G03G21/1821 ,  G03G2221/1693

摘要： A charging module for applying a uniform electrostatic charge to a charge retentive surface is provided. The charging module is operably electrically connectable to a power supply for supplying an electrical bias to the charging apparatus. The charging module is mountable into a process cartridge. The process cartridge includes a cartridge mounting surface for cooperation with the charging apparatus. The apparatus includes a housing including a housing mounting feature and an electrode. The electrode is mounted to the housing and is positioned adjacent the surface in a non-contact relationship therewith. The housing mounting feature is adapted to be cooperable with the cartridge mounting surface to secure the placement of the charging module into the cartridge without the need for any installation tools.

摘要翻译： 具有电极的壳体具有与相应的盒安装单元（324）接合的安装单元（322）。 墨盒安装在外壳中，无需任何安装工具。 连接到电极和电源的连接器将电偏压施加到电极。 提供用于保护电极的屏蔽。

公开(公告)号：EP0917026A2

公开(公告)日：1999-05-19

申请号：EP98309160.4

申请日：1998-11-09

申请人： XEROX CORPORATION

发明人： Damji, Dhirendra C. ,  Kumar, Ajay ,  Shaffer, Douglas W.

IPC分类号： G03G21/18

CPC分类号： G03G21/1846 ,  G03G2221/1846

摘要： An electrostatographic process cartridge (44) is detachably mountable into a cavity defined by mated modules forming parts of an electrostatographic reproduction machine. The process cartridge includes an elongate housing having walls (116) defining a front end of the process cartridge, a rear end (182) thereof, and a process chamber (118); a rotatable endless photoreceptive member (84) having a closed loop path within the process chamber (118), and an image bearing surface for holding a formed toner image, and being mounted within the process chamber (118) and towards the rear end (182) for contacting a toner image receiving sheet moving along a machine sheet path (98) for toner image transfer. The process cartridge (44) also includes plural electrostatographic process components (76) located along the closed loop path for forming a toner image on, and transferring such toner image from, the image bearing surface to the sheet of paper, a cleaning component (80) for removing and transporting waste toner from the image bearing surface, and a waste toner sump subassembly mounted to an end of the elongate housing for receiving and containing waste toner removed and transported thereto by the cleaning component. Importantly, the process cartridge includes a module handle (144) attached to the rear end thereof for gripping and use by an operator for inserting and removing the process cartridge (44) from the defined cavity (42), and forming a part of the machine sheet path (98) for contacting and guiding a sheet of paper moving from the photoreceptive member (84).

公开(公告)号：EP0917025A2

公开(公告)日：1999-05-19

申请号：EP98309149.7

申请日：1998-11-09

申请人： XEROX CORPORATION

发明人： Damji, Dhirendra C. ,  Kumar, Ajay

IPC分类号： G03G21/18

CPC分类号： G03G21/1821 ,  G03G21/1647 ,  G03G21/1864 ,  G03G2221/1657

摘要： An electrostatographic process cartridge (44) is detachably mountable into a cavity (42) defined by mated modules forming parts of an electrostatographic reproduction machine. The process cartridge (44) includes an elongate plastic housing having a first side (102) and a second side (104), as well as an inner surface defining a process chamber (118). It also includes a rotatable photoreceptive member (84) mounted within the process chamber (118) and to the housing and having an image bearing surface for holding a formed toner image; a rotatable developer member (92) mounted to the housing, and forming a critical development gap (220) with the photoreceptive member (84) within the process chamber (118) for enabling jumping toner image development on the image bearing surface; a drive assembly mounted at the second side (104) of the housing for coupling to the photoreceptive member (84); and a gear train (246,250) mounted at the second side of the housing, and coupled to the drive assembly and the developer member (92) for transmitting drive to the developer member (92) . The gear-train (246,250) as mounted including a developer member gear (250), and having a resultant drive force pushing the developer member gear (250) away from the photoreceptive member, thus tending to widen the critical development gap. Importantly, the process cartridge (44) includes a resultant force counter-acting member (240) mounted to the second side of the housing for absorbing the drive resultant force. The resultant force counter-acting member (240) includes a wall and a retaining aperture for precisely retaining the developer member in a predetermined aligned position so as to maintain the critical development gap (220), and thereby ensure uniform quality toner image development.

摘要翻译： 静电成像处理盒（44）可拆卸地安装到由形成静电成像复制机的部件的配合模块限定的空腔（42）中。 处理盒（44）包括具有第一侧（102）和第二侧（104）的细长塑料外壳以及限定处理室（118）的内表面。 它还包括安装在处理室（118）内和壳体内并具有用于保持形成的调色剂图像的图像承载表面的可旋转的感光构件（84） 可旋转的显影剂部件（92），其安装到所述外壳，并且在所述处理室（118）内与所述感光构件（84）形成临界显影间隙（220），以使得能够在所述图像承载表面上显影跳跃调色剂图像; 安装在所述壳体的所述第二侧（104）以用于耦合到所述感光构件（84）的驱动组件; 以及安装在壳体的第二侧并且联接到驱动组件和显影器构件（92）以将驱动传递到显影器构件（92）的齿轮系（246,250）。 齿轮系（246,250）被安装为包括显影剂部件齿轮（250），并且具有将显影剂部件齿轮（250）推离感光部件的合成驱动力，因此倾向于扩大临界显影间隙。 重要的是，处理盒（44）包括一个安装在外壳第二侧上用于吸收驱动合力的合力反作用构件（240）。 合成力反作用构件（240）包括壁和保持孔，用于将显影剂构件精确地保持在预定的对准位置，从而保持临界显影间隙（220），从而确保均匀质量的调色剂图像显影。

公开(公告)号：EP0917017A2

公开(公告)日：1999-05-19

申请号：EP98120991.9

申请日：1998-11-05

申请人： Xerox Corporation

发明人： Damji, Dhirendra C. ,  Kumar, Ajay ,  Chiesa, Daniel A.

IPC分类号： G03G21/18 ,  G03G15/09

CPC分类号： G03G21/1867 ,  G03G2221/1633 ,  G03G2221/1657 ,  G03G2221/166

摘要： A bearing support for use in a process cartridge including a roll rotatably mounted to a housing is provided. The roll is used for transporting marking particles to a latent image to form a developed image. The bearing support supports the roll and provides an electrical path between the roll and a voltage source. The bearing support includes a body having a first feature for cooperation with the roll and a second feature for cooperation with the housing. At least one of the first feature and the second feature provides for rotatable motion between the housing and the roll. The bearing support further includes a third feature for providing an electrical path between the roll and the voltage source.

公开(公告)号：EP1840672B1

公开(公告)日：2010-07-07

申请号：EP07105012.4

申请日：2007-03-27

申请人： Xerox Corporation

发明人： Kumar, Ajay ,  Nau, Keith Allan ,  Reed, David A. ,  Oba, Hirotsugu

IPC分类号： G03G15/09

CPC分类号： G03G15/0928 ,  G03G2215/0648 ,  G03G2215/0861