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120 records (took 0.024 seconds)

    32.
    发明专利
    未知

    公开(公告)号：DE69309384T2

    公开(公告)日：1997-10-02

    申请号：DE69309384

    申请日：1993-10-01

    Applicant: XEROX CORP

    Inventor： BEHE THOMAS J ,  FOLKINS JEFFREY J ,  LIOY GERALD T ,  BREWINGTON GRACE T ,  SCHRAM JOSEPH G ,  WAYMAN WILLIAM H

    IPC: G03G15/06 ,  G03G15/08 ,  G03G15/09

    Abstract: A donor roll (40) for the conveyance of toner in a development system for an electrophotographic printer includes an outer surface (42) of phenolic resin. The resin is doped to a suitable conductivity to facilitate a discharge time constant thereon of less than 300 microseconds. The donor roll is used in conjunction with an electrode structure (41) to provide scavengeless development of an electrostatic latent image on a charge-retaining member (10).

    33.
    发明专利
    未知

    公开(公告)号：DE69019463T2

    公开(公告)日：1996-01-25

    申请号：DE69019463

    申请日：1990-10-30

    Applicant: XEROX CORP

    Inventor： FOLKINS JEFFREY J ,  SCHNEIDER ERIC J ,  SCHRAM JOSEPH G

    IPC: G03G15/09 ,  G03G15/08

    Abstract: An apparatus for developing a latent image recorded on a photoconductive member in an electrophotographic printing machine having a reservoir (64) for storing a supply of developer material and a magnetic brush roll (70) for transporting material from the reservoir to each of two donor rolls (76, 78). The developer material (66) comprises carrier granules and toner particles. The donor rolls (76, 78) receive toner particles from the magnetic brush roll (70) and deliver the toner particles to the photoconductive member (10) at spaced locations in the direction of movement of the photoconductive member to develop the latent image recorded thereon. Electrode members (86, 88) are positioned between each of the donor rolls and the photoconductive surface.

    34.
    发明专利
    未知

    公开(公告)号：DE68922585T2

    公开(公告)日：1996-01-11

    申请号：DE68922585

    申请日：1989-11-23

    Applicant: XEROX CORP

    Inventor： SCHROLL ROSS E ,  FOLKINS JEFFREY J

    IPC: B41J29/00 ,  G03G15/00 ,  G03G21/00 ,  G03G21/18 ,  H01R13/02 ,  H01R39/24 ,  H01R41/00 ,  H01R13/22 ,  H05K7/14

    Abstract: An electrostatographic printing machine comprises a main frame (10) and at least one unit (11) insertable into and removable from said main frame for cooperative association therewith in producing prints. Two electrical contact elements (67,72), one on each of said main frame and said removable unit, engage one another to form an electrical connection to conduct electric current between the main frame (10) and the removable unit (11). One of the contact elements (67) comprises a plurality of resiliently flexible conductive fibers (69) arranged in a brush-like configuration and the second element (72) comprises a substantially continuous conductive surface for electrical contact with said brush.

    35.
    发明专利
    未知

    公开(公告)号：BR9304106A

    公开(公告)日：1994-04-05

    申请号：BR9304106

    申请日：1993-10-01

    Applicant: XEROX CORP SOCIEDADE NORTE AME

    Inventor： BEHE THOMAS J ,  FOLKINS JEFFREY J ,  LIOY GERALD T ,  BREWINGTON GRACE T ,  SCHRAM JOSEPH G ,  WAYMAN WILLIAM H

    IPC: G03G15/06 ,  G03G15/08

    Abstract: A donor roll (40) for the conveyance of toner in a development system for an electrophotographic printer includes an outer surface (42) of phenolic resin. The resin is doped to a suitable conductivity to facilitate a discharge time constant thereon of less than 300 microseconds. The donor roll is used in conjunction with an electrode structure (41) to provide scavengeless development of an electrostatic latent image on a charge-retaining member (10).

    EXTENDED LIFE DEVELOPMENT SYSTEM
    37.
    发明专利
    EXTENDED LIFE DEVELOPMENT SYSTEM 未知

    公开(公告)号：CA1253192A

    公开(公告)日：1989-04-25

    申请号：CA523654

    申请日：1986-11-24

    Applicant: XEROX CORP

    Inventor： FOLKINS JEFFREY J ,  EDMUNDS CYRIL G ,  HART STEVEN C

    IPC: G03G13/08 ,  G03G13/09 ,  G03G15/08 ,  G03G15/09

    Abstract: An apparatus which develops an electrostatic latent image recorded on a photoconductive member employed in an electrophotographic printing machine having a finite, usable life. The apparatus employs a developer material which ages during the life of the electrophotographic printing machine. A continuous supply of carrier granules is furnished to the developer material. The addition of these carrier granules extends the useful life of the developer material so as to correspond to at least the useful life of the electrophotographic printing machine.

    38.
    发明专利
    未知

    公开(公告)号：BR8302876A

    公开(公告)日：1984-04-17

    申请号：BR8302876

    申请日：1983-05-30

    Applicant: XEROX CORP

    Inventor： FOLKINS JEFFREY J

    IPC: G03G15/06 ,  G03G15/08 ,  G03G15/09

    Abstract: An apparatus (20) for developing an image region recorded on a photoconductive surface (12) with a dry developer material. A transport (52) moves the dry material closely adjacent to the photoconductive surface (12). The charge induced on the transport (52) by the charge on the photoconductive surface is controlled (58,60) to electrically bias the transport to a potential intermediate the potential of the image region and non-image region of the photoconductive surface.

    Kratzfeste Tinten
    39.
    发明专利
    Kratzfeste Tinten 未知

    公开(公告)号：DE102015205570B4

    公开(公告)日：2022-02-24

    申请号：DE102015205570

    申请日：2015-03-26

    Applicant: XEROX CORP

    Inventor： DESHIKAN SRINIVASA R ,  FOLKINS JEFFREY J ,  MCCONVILLE PAUL J ,  LEE JOANNE L

    IPC: C09D11/34 ,  C09D11/12 ,  C09D11/30

    Abstract: Tinte, umfassend:Stearinsäure, wobei die Stearinsäure in 15 Gew.% bis 25 Gew.% der Tinte vorhanden ist;ein Fettamid; undein mikrokristallines Wachs mit einer Härte im Bereich von 25 dmm bis 30 dmm oder 28 dmm und einer Viskosität im Bereich von 12 mm2/s bis 16 mm2/s, wobei das mikrokristalline Wachs in 30 Gew.% bis 45 Gew.% der Tinte vorhanden ist;wobei die Tinte eine größere Kratzfestigkeit als eine konventionelle Phasenwechseltinte, die keine C10- bis C26-Fettsäure und ein mikrokristallines Wachs mit einer Härte im Bereich von 25 dmm bis 30 dmm oder 28 dmm und einer Viskosität im Bereich von 12 mm2/s bis 16 mm2/s umfasst, zeigt, gemessen durch Kratz- und Falttests mit einem Rockwell Prüfstempel gemäß ISO 4586-2:2004 (E).

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