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    2.
    发明专利
    未知

    公开(公告)号：BRPI0701294A2

    公开(公告)日：2008-11-11

    申请号：BRPI0701294

    申请日：2007-03-29

    Applicant: XEROX CORP

    Inventor： KUMAR AJAY ,  NAU KEITH A ,  REED DAVID A ,  OBA HIROTSUGU

    IPC: G03G15/09

    Abstract: A development station (100) in an electrostatographic imaging machine supports longer operational life without undue variation in the mass of developer on roll parameter. The development station includes a developer housing (12), for retaining a quantity of developer having semi-conductive carrier particles and toner particles, a first magnetic roll (36) having a stationary core (154) with at least one magnet (158) and a sleeve having longitudinal grooves that rotates about the stationary core of the first magnetic roll to transport developer to a photoreceptor, a second magnetic roll (38) having a stationary core (164) with at least one magnet (168) and a sleeve (160) having longitudinal grooves that rotates about the stationary core of the second magnetic roll to receive developer from the first magnetic roll and present the developer to the photoreceptor, the sleeve of the second magnetic roll being fabricated from a material that is softer than the sleeve of the first magnetic roll.

    3.
    发明专利
    未知

    公开(公告)号：DE69825121T2

    公开(公告)日：2004-11-18

    申请号：DE69825121

    申请日：1998-11-05

    Applicant: XEROX CORP

    Inventor： DAMJI DHIRENDRA C ,  KUMAR AJAY ,  CHIESA DANIEL A

    IPC: G03G15/08 ,  G03G15/09 ,  G03G21/18

    Abstract: 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.

    5.
    发明专利
    未知

    公开(公告)号：DE69821718D1

    公开(公告)日：2004-03-25

    申请号：DE69821718

    申请日：1998-11-09

    Applicant: XEROX CORP

    Inventor： CHIESA DANIEL A ,  DAMJI DHIRENDRA C ,  KUMAR AJAY

    IPC: G03G21/00 ,  G03G21/18

    Abstract: An electrostatographic process cartridge (100) is 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 (100) includes an elongate housing having walls (102,104,106) defining a process chamber (118); and a rotatable endless photoreceptive member (84) mounted within the process chamber (118) and to the housing. The photoreceptive member (84) has an image bearing surface for holding a formed toner image, a conductive layer, and a closed loop path within the process chamber (118). The process cartridge also includes a high voltage electrostatographic charging device (76) 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 (84); means (92) for forming on, and transferring from, the image bearing surface, a toner image; and means (68) for transferring the formed toner image onto a substrate. Importantly, the process cartridge includes a non-metallic electrically conductive grounding pin (160) mounted to the frame and in contact with the photoreceptive member (84) for aligning and grounding the photoreceptive member (84), 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.

    8.
    发明专利
    未知

    公开(公告)号：BR9804614A

    公开(公告)日：1999-11-03

    申请号：BR9804614

    申请日：1998-11-12

    Applicant: XEROX CORP

    Inventor： KUMAR AJAY ,  DAMJI DHIRENDRA C ,  CHIESA DANIEL A ,  BRYANT JEERY W

    IPC: G03G15/02 ,  G03G21/18

    Abstract: A charging apparatus (76) for applying a uniform electrostatic charge to a charge retentive surface is provided. The charging apparatus is operably electrically connectable to a power supply for supplying an electrical bias to the charging apparatus. The apparatus includes a housing (306) and an electrode (310) mounted to the housing and positioned adjacent the surface in a non-contact relationship therewith. The apparatus also includes a shield (302) connected to the housing and at least partially surrounding the electrode. The apparatus also includes an electrical connector (326), electrically connected to the shield and electrically connectable to the power supply for providing an electrical bias to the shield. The electrical connector extends from the shield and is integral therewith.

    9.
    发明专利
    未知

    公开(公告)号：DE69826211T2

    公开(公告)日：2005-01-27

    申请号：DE69826211

    申请日：1998-11-13

    Applicant: XEROX CORP

    Inventor： DAMJI DHIRENDRA C ,  KUMAR AJAY

    IPC: G03G15/08 ,  G03G21/18

    Abstract: A system for providing a plurality of process cartridges for developing with marking particles a latent image with common components is provided. The system includes a housing and a member mounted to the housing for advancing the marking particles toward the latent image. The system also includes a first pan securable to the housing and defining a first cavity therebetween. The first cavity defines a first volume. The system also includes a second pan securable to the housing and defining a second cavity therebetween. The second cavity defines a second volume substantially different than the first volume. The housing, the member and the first pan are assemblable to form a first process cartridge including the first volume. The housing, the member and the second pan are assemblable to form a second process cartridge including the second volume.

    10.
    发明专利
    未知

    公开(公告)号：DE69826211D1

    公开(公告)日：2004-10-21

    申请号：DE69826211

    申请日：1998-11-13

    Applicant: XEROX CORP

    Inventor： DAMJI DHIRENDRA C ,  KUMAR AJAY

    IPC: G03G15/08 ,  G03G21/18

    Abstract: A system for providing a plurality of process cartridges for developing with marking particles a latent image with common components is provided. The system includes a housing and a member mounted to the housing for advancing the marking particles toward the latent image. The system also includes a first pan securable to the housing and defining a first cavity therebetween. The first cavity defines a first volume. The system also includes a second pan securable to the housing and defining a second cavity therebetween. The second cavity defines a second volume substantially different than the first volume. The housing, the member and the first pan are assemblable to form a first process cartridge including the first volume. The housing, the member and the second pan are assemblable to form a second process cartridge including the second volume.

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