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11. 发明授权

US5778283A Process cartridge including a banding defect preventing waste toner moving auger 失效
公开(公告)号：US5778283A
公开(公告)日：1998-07-07
申请号：US970320
申请日：1997-11-14
申请人： Dhirendra C. Damji , Ajay Kumar
发明人： Dhirendra C. Damji , Ajay Kumar
IPC分类号： G03G21/10 , G03G21/18 , G03G21/16
CPC分类号： G03G21/1814 , G03G21/105 , G03G2221/1624 , G03G2221/1648
摘要： An electrostatographic process cartridge detachably mountable into a cavity defined by mated modules forming parts of an electrostatographic reproduction machine. The process cartridge includes a housing having walls defining a partially enclosed process chamber; a rotatable cylindrical photoreceptive member mounted within a portion of the process chamber and to the walls. The photoreceptive member has a closed loop path within the process chamber and an image bearing surface for holding a formed toner image. The process cartridge also includes plural electrostatographic process toner image forming and transferring components 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 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 includes a curved portion of the walls including a blade mounting surface having a plane forming a blade mounting angle with a tangent to the image bearing surface; a cleaning blade 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 mounted into contact with the image bearing surface at a point upstream of the cleaning blade so that the seal member, the blade, the image bearing surface and the curved portion of the walls, define the cleaning chamber; and a troughless waste toner transporting auger mounted for rotation without a trough and directly over the image bearing surface within the cleaning chamber for transporting and moving waste toner axially relative to the photoreceptive member and out of the cleaning chamber. The troughless auger 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.

12. 再颁专利

USRE42125E1 Development bias connector with integral bearing support 有权
标题翻译：具有集成轴承支持的开发偏置连接器
公开(公告)号：USRE42125E1
公开(公告)日：2011-02-08
申请号：US11652134
申请日：2007-01-11
申请人： Dhirendra C. Damji , Ajay Kumar , Daniel A. Chiesa
发明人： Dhirendra C. Damji , Ajay Kumar , Daniel A. Chiesa
IPC分类号： G03G21/16
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.
摘要翻译：提供了一种用于包括可旋转地安装到壳体上的辊的处理盒中的轴承支撑件。辊用于将标记颗粒输送到潜像以形成显影图像。轴承支撑件支撑辊子并且在辊和电压源之间提供电路径。轴承支撑件包括具有用于与辊协作的第一特征的主体和用于与壳体配合的第二特征。第一特征和第二特征中的至少一个提供了在壳体和辊之间的可旋转运动。轴承支撑件还包括用于在辊和电压源之间提供电路径的第三特征。

13. 发明授权

US06317575B1 Firm interlock between shaft and bore 有权
标题翻译：轴和孔之间牢固的互锁
公开(公告)号：US06317575B1
公开(公告)日：2001-11-13
申请号：US09637371
申请日：2000-08-15
申请人： Ajay Kumar , Dhirendra C. Damji
发明人： Ajay Kumar , Dhirendra C. Damji
IPC分类号： G03G1500
CPC分类号： G03G15/757 , F16D1/072 , G03G15/0935
摘要： Method for producing a firm, motion-resistant connection between mating surfaces of a male member, such as a shaft or hub, and a female member such as a bore. One or more thin ribs of pressure-deformable composition, such as integral soft metal or plastic, are formed on one of the mating surfaces, which ribs deform and spread between the surfaces when the male member is forced into the bore to connect the members. According to a preferred embodiment, the shaft is the fixed core shaft of a xerographic toner developer roller within a toner cartridge and/or the hub of a bearing support member for the shaft, and the bore is a central core shaft-engaging bore in the hub and/or a hub-engaging bore in the cartridge housing, and the connection is an electroconducting connection providing near-zero capacitance.
摘要翻译：在阳构件（例如轴或毂）的配合表面和诸如孔的阴构件之间产生牢固的，抗运动的连接的方法。在一个配合表面上形成一个或多个压力可变形组合物的薄肋，例如整体的软金属或塑料，当凸构件被迫进入孔中以连接构件时，这些肋在表面之间变形和展开。根据优选实施例，轴是调色剂盒内的静电复印调色剂显影辊的固定芯轴和/或用于轴的轴承支撑构件的毂，并且孔是中心芯轴接合孔毂和/或毂壳体中的毂接合孔，并且连接件是提供接近零电容的导电连接。

14. 发明授权

US6044241A Dual charging and metering of development member 有权
标题翻译：双重充电和计量开发成员
公开(公告)号：US6044241A
公开(公告)日：2000-03-28
申请号：US141956
申请日：1998-08-28
申请人： Ajay Kumar , Dhirendra C. Damji
发明人： Ajay Kumar , Dhirendra C. Damji
IPC分类号： G03G15/09 , G03G15/08
CPC分类号： G03G15/09 , G03G2221/183
摘要： A developer unit for developing a latent image with marking particles is provided. The developer unit includes a housing defining a chamber for storing a supply of marking particles therein. The developer unit also includes an advancing member for advancing the marking particles on a surface thereof from the chamber of the housing in a first direction toward the latent image. The developer unit also includes a first regulating member for charging the marking particles and for regulating the thickness of the layer of marking particles on the surface of the advancing member. The developer unit also includes a second regulating member spaced from the first regulating member. The second regulating member serves to at least one of charge the layer of marking particles on the surface of the advancing member and regulate the thickness of the layer of marking particles on the surface of the advancing member. The second regulating member is adapted cooperate with the advancing member to charge the marking particles on the surface of the advancing member so as to reduce ghosting when developing the latent image with the marking particles.
摘要翻译：提供用于用标记颗粒显影潜像的显影单元。显影单元包括限定用于在其中存储标记颗粒供应的室的壳体。显影单元还包括用于使第一方向上的标记颗粒在其表面上从壳体的腔室朝着潜像推进的前进构件。显影单元还包括用于对标记颗粒充电并用于调节前进构件表面上的标记颗粒层的厚度的第一调节构件。显影单元还包括与第一调节构件间隔开的第二调节构件。第二调节构件用于在前进构件的表面上施加标记颗粒层的至少一个，并调节前进构件表面上的标记颗粒层的厚度。第二调节构件与前进构件配合，以对前进构件的表面上的标记颗粒充电，以便在用标记颗粒显影潜像时减少重影。

15. 发明授权

US5809377A Electrostatographic process cartridge having a non-metallic photoreceptor grounding pin 失效
标题翻译：具有非金属感光体接地针的静电处理盒
公开(公告)号：US5809377A
公开(公告)日：1998-09-15
申请号：US970321
申请日：1997-11-14
申请人： Daniel A. Chiesa , Dhirendra C. Damji , Ajay Kumar
发明人： Daniel A. Chiesa , Dhirendra C. Damji , Ajay Kumar
IPC分类号： G03G21/00 , G03G21/18 , G03G21/16
CPC分类号： G03G21/1828 , G03G21/1652 , G03G21/1867 , G03G2221/1615 , G03G2221/166
摘要： An electrostatographic process cartridge detachably mountable into a cavity defined by mated modules forming parts of an electrostatographic reproduction machine having a copy-volume capacity limited by a waste toner sump capacity. The process cartridge includes an elongate housing having walls defining a process chamber; and a rotatable endless photoreceptive member mounted within the process chamber and to the housing. The photoreceptive member has an image bearing surface for holding a formed toner image, a conductive layer, and a closed loop path within the process chamber. The process cartridge also includes a high voltage electrostatographic charging device mounted to the elongate frame and along the closed loop path for applying a layer of electrostatic charge to the image bearing surface of the photoreceptive member; means for forming on, and transferring from, the image bearing surface, a toner image; and means for transferring the formed toner image onto a substrate. Importantly, the process cartridge includes a non-metallic electrically conductive grounding pin mounted to the frame and in contact with the photoreceptive member for aligning and grounding the photoreceptive member, so as to prevent photoreceptive member discharge current from passing to an adjacent machine imager module forming latent images on the charged image bearing surface.
摘要翻译：一种静电放置处理盒，其可拆卸地安装到由配合的模块限定的空腔中，所述模块形成具有由废墨粉池容积限制的复制容积容量的静电复原机的部件。处理盒包括具有限定处理室的壁的细长壳体; 以及安装在所述处理室和所述壳体内的可旋转的无限感光元件。感光元件具有用于保持形成的调色剂图像，导电层和处理室内的闭环路径的图像承载表面。处理盒还包括安装到细长框架并沿着闭环路径的高压静电摄影充电装置，用于将静电电荷层施加到感光元件的图像承载表面; 用于在图像承载表面上形成和从图像承载表面转移的装置，调色剂图像; 以及用于将形成的调色剂图像转印到基底上的装置。重要的是，处理盒包括安装到框架并与感光元件接触的非金属导电接地销，用于对准和接地感光元件，以防止感光元件放电电流通过相邻的机器成像器模块的形成充电图像承载面上的潜像。

16. 发明授权

US5632684A Stepped shaft assembly 失效
标题翻译：步进轴组件
公开(公告)号：US5632684A
公开(公告)日：1997-05-27
申请号：US547172
申请日：1995-10-24
申请人： Ajay Kumar , Porfirio J. Perez , Dhirendra C. Damji , Douglas W. Shaffer
发明人： Ajay Kumar , Porfirio J. Perez , Dhirendra C. Damji , Douglas W. Shaffer
IPC分类号： F16C3/02 , F16D1/08 , F16H57/00 , F16C3/00
CPC分类号： F16H57/0025 , F16C3/02 , F16D1/0858 , Y10S74/10
摘要： A shaft assembly and method of forming a shaft assembly having an elongated hollow shaft with a stepped portion on the surface of the shaft. The stepped portion of the shaft surface is formed of two straight edge sections joined by an inclined section. A gear having a corresponding straight/inclined edge configuration engages the shaft and contacts the shaft only on the corresponding straight edge portions. Both the shaft and gear are made of plastic.
摘要翻译：轴组件和形成轴组件的方法，所述轴组件具有在所述轴的表面上具有阶梯部分的细长空心轴。轴表面的阶梯部分由两个通过倾斜部分连接的直边部分形成。具有对应的直/倾斜边缘构造的齿轮接合轴并且仅在对应的直边缘部分处接触轴。轴和齿轮均由塑料制成。

17. 发明授权

US6058280A Molded quick change photoreceptor support 失效
标题翻译：成型快速感光器支持
公开(公告)号：US6058280A
公开(公告)日：2000-05-02
申请号：US970313
申请日：1997-11-14
申请人： Ajay Kumar , Dhirendra C. Damji
发明人： Ajay Kumar , Dhirendra C. Damji
IPC分类号： G03G21/18 , G03G15/00
CPC分类号： G03G21/1842 , G03G15/751 , G03G21/1647 , G03G21/1671 , G03G2221/1606 , G03G2221/183
摘要： A supporting apparatus for supporting a photoconductive member within the housing of a printing cartridge for use in a printing machine is provided. The supporting apparatus includes a body, a connecting feature and a supporting feature. The connecting feature is connected to the body for quick and removable connection to the housing. The supporting feature is connected to the body cooperating with the body for rotatably supporting the photoconductive member within the housing.
摘要翻译：提供一种用于在用于印刷机的打印盒的壳体内支撑感光体的支撑装置。支撑装置包括主体，连接特征和支撑特征。连接功能连接到主体，用于快速和可拆卸地连接到外壳。支撑特征连接到与主体配合的主体，用于可旋转地支撑感光体在壳体内。

18. 发明授权

US5937241A Positive gear mount for motion quality 失效
标题翻译：正齿轮安装用于运动质量
公开(公告)号：US5937241A
公开(公告)日：1999-08-10
申请号：US49188
申请日：1998-03-27
申请人： Ajay Kumar , Dhirendra C. Damji
发明人： Ajay Kumar , Dhirendra C. Damji
IPC分类号： F16D1/08 , G03G15/00 , G03G21/18 , G03G21/16
CPC分类号： G03G21/1857 , F16D1/0858 , G03G15/757 , G03G21/105 , G03G21/1647 , G03G2221/1657
摘要： A drive member for use in a printing machine is provided. The drive member cooperates with a drive shaft including a drive shaft feature. The drive shaft is adapted to transfer torque therebetween. The drive member cooperates with a torque transferring component to transfer torque therebetween. The drive member includes a body. The body defines an aperture therein. The body defines an axis of rotation thereof. The drive member further includes a torque transferring feature associated with the body for transferring torque between the body and the torque transferring component and a torque transmitting feature extending from the body in the direction of the axis, at least a portion of the torque transmitting feature having an arcuate periphery.
摘要翻译：提供了一种用于印刷机的驱动件。驱动构件与包括驱动轴特征的驱动轴配合。驱动轴适于在其间传递扭矩。驱动部件与扭矩传递部件配合以在其间传递扭矩。驱动构件包括主体。身体在其中限定孔。主体限定其旋转轴。驱动构件还包括与主体相关联的转矩传递特征，用于在主体和转矩传递部件之间传递转矩，以及扭矩传递特征，其从主体沿轴线方向延伸，转矩传递部件的至少一部分具有弧形周边。

19. 发明授权

US5832345A Process cartridge having a drive assembly resultant force counter acting member 失效
标题翻译：处理盒具有驱动组件合力反作用构件
公开(公告)号：US5832345A
公开(公告)日：1998-11-03
申请号：US970324
申请日：1997-11-14
申请人： Dhirendra C. Damji , Ajay Kumar
发明人： Dhirendra C. Damji , Ajay Kumar
IPC分类号： G03G21/18 , G03G15/00 , G03G21/16
CPC分类号： G03G21/1821 , G03G21/1647 , G03G21/1864 , G03G2221/1657
摘要： An electrostatographic process cartridge detachably mountable into a cavity defined by mated modules forming parts of an electrostatographic reproduction machine. The process cartridge includes an elongate plastic housing having a first side and a second side, as well as an inner surface defining a process chamber. It also includes a rotatable photoreceptive member mounted within the process chamber and to the housing and having an image bearing surface for holding a formed toner image; a rotatable developer member mounted to the housing, and forming a critical development gap with the photoreceptive member within the process chamber for enabling jumping toner image development on the image bearing surface; a drive assembly mounted at the second side of the housing for coupling to the photoreceptive member; and a gear train mounted at the second side of the housing, and coupled to the drive assembly and the developer member for transmitting drive to the developer member. The gear-train as mounted including a developer member gear, and having a resultant drive force pushing the developer member gear away from the photoreceptive member, thus tending to widen the critical development gap. Importantly, the process cartridge includes a resultant force counter-acting member mounted to the second side of the housing for absorbing the drive resultant force. The resultant force counter-acting member 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, and thereby ensure uniform quality toner image development.
摘要翻译：一种静电放置处理盒，其可拆卸地安装到由形成静电复原机的部件的配合模块限定的空腔中。处理盒包括具有第一侧面和第二侧面的细长塑料外壳以及限定处理室的内表面。它还包括可旋转的感光元件，其安装在处理室内和壳体之间并具有用于保持形成的调色剂图像的图像承载表面; 安装到壳体的可旋转的显影剂构件，并且与处理室内的感光元件形成关键的显影间隙，以使得能够在图像承载表面上跳跃调色剂图像显影; 安装在所述壳体的第二侧的驱动组件，用于联接到所述感光元件; 以及安装在所述壳体的第二侧的齿轮系，并且联接到所述驱动组件和所述显影剂构件，用于将驱动器传送到所述显影剂构件。安装的齿轮系包括显影剂构件齿轮，并且具有将显影剂构件推离感光构件的合力驱动力，因此倾向于扩大临界显影间隙。重要的是，处理盒包括安装在壳体的第二侧以吸收驱动合力的合力反作用件。合力反作用构件包括壁和保持孔，用于将显影剂构件精确地保持在预定的对准位置，以便保持临界显影间隙，从而确保调色剂图像显影均匀。

20. 发明授权

US06223012B1 Developer unit with a replenish port 有权
标题翻译：具有补充端口的开发者单元
公开(公告)号：US06223012B1
公开(公告)日：2001-04-24
申请号：US09447252
申请日：1999-11-23
申请人： Ajay Kumar , Dhirendra C. Damji
发明人： Ajay Kumar , Dhirendra C. Damji
IPC分类号： G03G1508
CPC分类号： G03G15/0896
摘要： A developer unit is arranged with a replenish port for adding developer compound to the developer pan. The replenish port is arranged so that developer compound added to the replenish port falls through the port to an inclined ramp at one end of the developer pan. Further, the inclined ramp's angle of incline is arranged to exceed the developer compound's angle of repose. As a result, the added developer compound flows down the ramp and towards the agitator. The agitator, in turn, propels the developer compound towards the donor roll.
摘要翻译：显影剂单元布置有补充口，用于将显影剂化合物添加到显影剂锅中。补充口被布置成使得添加到补充口的显影剂化合物通过端口落到显影盘的一端的倾斜斜面。此外，倾斜斜坡的倾斜角被设置成超过显影剂化合物的休止角。结果，添加的显影剂化合物沿着斜面向下流动并且朝向搅拌器。搅拌器又将显影剂化合物推向供体辊。

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