Claims
- 1. An imaging member comprising a supporting substrate,
a charge blocking layer, a charge generating layer, a charge transport layer wherein the charge transport layer comprises a poly(phenylsilsesquioxane) of the formula, a binder, 12wherein n represents the number of repeating segments.
- 2. An imaging member according to claim 1 wherein the charge transport layer is dispersed in a solvent.
- 3. An imaging member according to claim 2 wherein the solvent comprises tetrahydrofuran, toluene, methylene chloride and mixtures thereof.
- 4. An imaging member according to claim 1 wherein the charge transport layer comprises N,N′diphenyl-N,N′-bis(3-methylphenyl)-[1,1′-biphenyl]-4,4′diamine 1, tetra-(4-(N,N′-di(4-toly)amino)phenyl)methane, or N,N′-diphenyl-N,N′-di(m-tolyl)-p-benzidine.
- 5. An imaging member according to claim 1 wherein the charge transport layer is comprised of tetra-(4-(N,N′-di(4toly)amino)phenyl)methane.
- 6. An imaging member according to claim 1 wherein the charge transport layer is comprised of N,N′-diphenyl-N,N′-bis(3-methylphenyl)-[1,1′-biphenyl]-4,4′diamine.
- 7. An imaging member according to claim 1 wherein the charge transport layer is comprised N,N′-diphenyl-N,N′-di(m-tolyl)-p-benzidine.
- 8. An imaging member according to claim 1 wherein the charge transport layer comprises said binder in an amount of from about 20 to about 80 percent by weight.
- 9. An imaging member according to claim 1 wherein the charge transport layer comprises said binder in an amount of from about 33 to about 55 percent by weight.
- 10. An imaging member according to claim 1 wherein the charge transport layer comprises a hole transport material in an amount of from about 20 to about 80 percent by weight.
- 11. An imaging member according to claim 1 wherein the charge transport is comprised of an aryl amine:
- 12. An imaging member according to claim 11 wherein the arylamine is N,N′-diphenyl-N,N′-bis(3-methylphenyl)-[1,1′-biphenyl]-4,4′-diamine.
- 13. An imaging member according to claim 1 wherein the charge transport is selected from the group consisting of N,N′-diphenyl-N,N′-bis(3-methylphenyl)-[1,1′-biphenyl]-4,4′diamine: N,N′-diphenyl-N,N′-bis(alkylphenyl)-1,1-biphenyl-4,4′-diamine: Tritolylamine: N,N′-bis-(3,4-dimethylphenyl)-4-biphenyl amine: N,N′,bis-(4-methylphenyl)-N,N″-bis(4-ethylphenyl)-1,1′-3,3′-dimethylbiphenyl)-4,4′-diamine: phenanthrene diamine, and stilbene molecules.
- 14. An imaging member according to claim 1 wherein the charge transport layer comprises an electron transport component from the group consisting of, 1,1′-dioxo-2-(4-methylphenyl)-6-phenyl-4-(dicayanomethylidene)thiopyran, butoxy carbonyl fluorenylidene malononitrile, carboxybenzylnaphthaquinone, tetra (t-butyl) diphenoquinone,
perinqne, thiopyran, N,N′bis(1,2-dimethylpropyl)-1,4,5,8-naphthalenetetracarboxylic diimide represented by: 141,1′-dioxo-2-(4-methylphenyl)-6-phenyl-4-(dicyanomethylidene)thiopyran represented by: 15wherein each R is independently selected from the group consisting of hydrogen, alkyl having about 1 to about 4 carbon atoms, alkoxy having about 1 to about 4 carbon atoms and halogen and a quinone selected from the group consisting of:
carboxybenzylnaphthaquinone represented by: 16tetra (t-butyl) diphenoquinone represented by: 17mixtures thereof.
- 15. An imaging member according to claim 14, wherein said electron transport is N,N′bis(1,2-dimethylpropyl)-1,4,5,8-naphthalenetetracarboxylic diimide.
- 16. An imaging member according to claim 1 wherein the binder is selected from the group consisting of polyesters, polyvinyl butyrals, polycarbonates, polystyrene-b-polyvinyl pyridine, poly(vinyl butyral), poly(vinyl carbazole), poly(vinyl chloride), polyacrylates, polymethacrylates, copolymers of vinyl chloride and vinyl acetate, phenoxy resins, polyurethanes, poly(vinyl alcohol), polyacrylonitrile, and polystyrene.
- 17. An imaging member according to claim 16 wherein the binder is a polycarbonate in an amount of from about 20 to about 80 percent by weight.
- 18. An imaging member according to claim 17 wherein the polycarbonate is poly (4,4′-diphenyl-1,1′-cyclohexane carbonate).
- 19. An image forming device comprising a photoreceptor and a charging device which charges the photoreceptor, wherein the photoreceptor comprises
a substrate, a charge generating layer, a charge transport layer, and a binder.
- 20. The image forming device according to claim 19, wherein the photoreceptor is in the form of a belt.
- 21. The image forming device according to claim 19, wherein the photoreceptor is in the form of a drum.
- 22. An imaging member according to claim 1 wherein the photogenerating layer has a thickness of from about 3 micrometers to about 50 micrometers.
- 23. An imaging process comprising
providing a member comprising
a supporting layer and a photogenerating layer, a charge transport layer, the charge transport layer comprising poly(phenylsilsesquioxane), depositing a uniform electrostatic charge on the imaging member, exposing the imaging member to activating radiation in image configuration to form an electrostatic latent image, and developing the latent image with electrostatically attractable marking particles to form a toner image in conformance to the latent image.
CROSS REFERENCE TO COPENDING APPLICATION
[0001] U.S. patent application Ser. No. 09/302,524, filed in the names of D. Murti, et al on Apr. 30, 1999, discloses a photoconductive imaging member which is comprised of a supporting substrate, and thereover a layer comprised of a photogenerator hydroxygallium component, a charge transport component, and an electron transport component. U.S. patent application Ser. No. 09/627,283, filed in the names of Lin, et al on Jul. 28, 2000, discloses an imaging member having a single electrophotographic layer. The is entire disclosure of this Patent Application is incorporated herein by reference.