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    LAYERED PHOTORESPONSIVE IMAGING DEVICES
    1.
    发明专利
    LAYERED PHOTORESPONSIVE IMAGING DEVICES 未知

    公开(公告)号：CA1208474A

    公开(公告)日：1986-07-29

    申请号：CA436631

    申请日：1983-09-14

    Applicant: XEROX CORP

    Inventor： PAN FRANK Y ,  MORRISON IAN D ,  TEUSCHER LEON A

    IPC: C08L69/00 ,  C08L71/00 ,  G03G5/05 ,  G03G5/06 ,  G03G5/04

    Abstract: This invention is directed to an improved photoresponsive device comprised in the order stated of (1) an optional supporting substrate, (2) a conductive layer, (3) a photogenerating layer comprised of an inorganic photoconductive composition, or an organic photoconductive composition, dispersed in a resinous binder material comprised of a poly(hydroxyether) material selected from the group consisting of those of the following formulas: I. and 2-- II. wherein X and Y are independently selected from the group consisting of aliphatic groups and aromatic groups, Z is hydrogen, an aliphatic group or an aromatic group, and n is a number of from about 50 to about 200, and (4) in contact with the photogenerating layer a charge transport layer comprised of an electrically active composition dispersed in an insulating organic resinous binder, which composition is of the following formula: wherein X is selected from the group consisting of ortho (CH3), meta 3-- (CH3), para (CH3), ortho (Cl), meta (Cl) and para (Cl); as well as the use of such devices in electrostatographic imaging systems, particularly xerographic imaging systems.

    7.
    发明专利
    未知

    公开(公告)号：DE68908956T2

    公开(公告)日：1994-03-10

    申请号：DE68908956

    申请日：1989-05-18

    Applicant: XEROX CORP

    Inventor： WATSON KEITH P ,  MORRISON IAN D ,  CROUCHER MELVIN D

    IPC: G03G13/01 ,  G03G13/10 ,  G03G15/01 ,  G03G15/10

    Abstract: A process for generating two-color images comprises: (1) charging an imaging member in an imaging apparatus; (2) creating on the member a latent image comprising areas of high, intermediate, and low potential; (3) providing an electrode having a potential within about 100 volts of that of the intermediate potential, enabling generation of an electric field and a development zone between the imaging member and the electrode; and (4) developing the latent image by introducing into the development zone a liquid developer composition containing first toner particles of one color and second toner particles of another color, the particles being dispersed in a liquid medium, wherein the second toner particles are attracted to the high potential and the first toner particles are attracted to the low potential. Another embodiment of the invention resides in a process for generating two-color images, comprising: (1) creating on an imaging member in an imaging apparatus a latent image comprising areas of positive, negative, and substantially no potential; (2) providing an electrode having a potential within about 100 volts of that of the area of substantially no potential, enabling the generation of an electric field and a development zone between the electrode and the imaging member; and (3) developing the latent image by introducing into the development zone a liquid developer composition containing first toner particles of one color and second toner particles of another color, the particles being dispersed in a liquid medium, wherein the second toner particles are attracted to the positive potential and the first toner particles are attracted to the negative potential.

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