Claims
- 1. A photoconductive imaging member comprised of a supporting substrate, and thereover a single layer comprised of a mixture of a photogenerator component, a charge transport component, an electron transport component, and a polymer binder, and wherein the photogenerating component is a metal free phthalocyanine.
- 2. An imaging member in accordance with claim 1 wherein said single layer is of a thickness of from about 5 to about 60 microns.
- 3. An imaging member in accordance with claim 1 wherein the amounts for each of said components in said single layer is from about 0.05 weight percent to about 30 weight percent for the photogenerating component, from about 10 weight percent to about 75 weight percent for the charge transport component, and from about 10 weight percent to about 75 weight percent for the electron transport component, and wherein the total of said components is about 100 percent, and wherein said layer components are dispersed in from about 10 weight percent to about 75 weight percent of said polymer binder, and wherein said layer is of a thickness of from about 5 to about 15 microns.
- 4. An imaging member in accordance with claim 1 wherein the amounts for each of said components in the single layer mixture is from about 0.5 weight percent to about 5 weight percent for the photogenerating component; from about 30 weight percent to about 50 weight percent for the charge transport component; and from about 5 weight percent to about 30 weight percent for the electron transport component; and which components are contained in from about 30 weight percent to about 50 weight percent of a polymer binder.
- 5. An imaging member in accordance with claim 1 wherein the thickness of said layer is from about 5 to about 35 microns.
- 6. An imaging member in accordance with claim 1 wherein said single layer components are dispersed in said polymer binder, and wherein said charge transport is comprised of hole transport molecules.
- 7. An imaging member in accordance with claim 6 wherein said binder is present in an amount of from about 50 to about 90 percent by weight, and wherein the total of all components of said photogenerating component, said charge transport component, said binder, and said electron transport component is about 100 percent.
- 8. An imaging member in accordance with claim 1 wherein said photogenerating component absorbs light of a wavelength of from about 370 to about 950 nanometers.
- 9. An imaging member in accordance with claim 1 wherein the supporting substrate is comprised of a conductive substrate comprised of a metal.
- 10. An imaging member in accordance with claim 9 wherein the conductive substrate is aluminum, aluminized polyethylene terephthalate or titanized polyethylene terephthalate.
- 11. An imaging member in accordance with claim 6 wherein the binder is selected from the group consisting of polyesters, polyvinyl butyrals, polycarbonates, polystyrene-b-polyvinyl pyridine, and polyvinyl formulas.
- 12. An imaging member in accordance with claim 1 wherein said charge transport component comprises aryl amine molecules.
- 13. An imaging member in accordance with claim 1 wherein said charge transporting component or components is comprised of molecules of the formula
- 14. An imaging member in accordance with claim 13 wherein alkyl contains from about 1 to about 10 carbon atoms, and wherein the charge transport is an aryl amine encompassed by said formula and which amine is optionally dispersed in a resinous binder.
- 15. An imaging member in accordance with claim 13 wherein alkyl contains from 1 to about 5 carbon atoms.
- 16. An imaging member in accordance with claim 13 wherein alkyl is methyl, and wherein halogen is chloride.
- 17. An imaging member in accordance with claim 13 wherein said charge transport is comprised of molecules of N,N′-diphenyl-N,N-bis(3-methyl phenyl)-1,1′-biphenyl4,4′-diamine.
- 18. An imaging member in accordance with claim 1 wherein said electron transport component is (4-n-butoxycarbonyl-9-fluorenylidene) malononitrile, 2-methylthioethyl 9-dicyanomethylenefluorene-4-carboxylate, 2-(3-thienyl)ethyl 9-dicyanomethylene fluorene-4-carboxylate, 2-phenylthioethyl 9-dicyanomethylenefluorene-4-carboxylate, 11,11,12,12-tetracyano anthraquinodimethane or 1,3-dimethyl-10-(dicyanomethylene)-anthrone.
- 19. An imaging member in accordance with claim 1 wherein said electron transport component is (4-n-butoxycarbonyl-9-fluorenylidene)malononitrile.
- 20. An imaging member in accordance with claim 13 wherein said electron transport component is (4-n-butoxycarbonyl-9-fluorenylidene)malononitrile, 2-methylthioethyl 9-dicyanomethylenefluorene-4-carboxylate, 2-(3-thienyl)ethyl 9-dicyanomethylenefluorene-4-carboxylate, 2-phenylthioethyl 9-dicyanomethylenefluorene-4-carboxylate, 11,11,12,12-tetracyano anthraquinodimethane or 1,3-dimethyl-10-(dicyanomethylene)-anthrone.
- 21. An imaging member in accordance with claim 1 further including a second photogenerating component of a titanyl phthalocyanine, a metal phthalocyanine other than titanyl phthalocyanine, a perylene, trigonal selenium, or mixtures thereof.
- 22. An imaging member in accordance with claim 1 wherein said electron transport is (4-n-butoxy carbonyl-9-fluorenylidene)malononitrile, and the charge transport is a hole transport of N,N′-diphenyl-N,N-bis(3-methyl phenyl)-1,1′-biphenyl4,4″-diamine molecules.
- 23. An imaging member in accordance with claim 1 wherein said phthalocyanine has major peaks, as measured with an X-ray diffractometer, at Bragg angles (2 theta±0.2).
- 24. A photoconductive imaging member comprised of a mixture containing a photogenerating component, hole transport molecules and an electron transport component, and thereover and in contact with said first layer a second layer comprised of hole transport molecules dispersed in a resin binder.
- 25. A method of imaging which comprises generating an electrostatic latent image on the imaging member of claim 1, developing the latent image, and transferring the developed electrostatic image to a suitable substrate.
- 26. An imaging member in accordance with claim 24 wherein said electron transport is (4-n-butoxycarbonyl-9-fluorenylidene)malononitrile, 2-methylthioethyl 9-dicyanomethylenefluorene-4-carboxylate.
- 27. An imaging member in accordance with claim 1 further containing an adhesive layer and a hole blocking layer.
- 28. An imaging member in accordance with claim 27 wherein said blocking layer is contained as a coating on a substrate, and wherein said adhesive layer is coated on said blocking layer.
- 29. An imaging member in accordance with claim 1 wherein said member comprises, in sequence, a supporting layer, and a single electrophotographic photoconductive insulating layer, the electrophotographic photoconductive insulating layer comprising particles comprising a metal free phthalocyanine photogenerating pigment dispersed in a matrix comprising an arylamine hole transporter, and an electron transporter selected from the group consisting of N,N′-bis(1,2-dimethylpropyl)-1,4,5,8-naphthalenetetracarboxylic diimide represented by the formula
- 30. An imaging member in accordance with claim 29 wherein the arylamine is N,N′-diphenyl-N,N′-bis(3-methylphenyl)-[1,1′-biphenyl]-4,4′-diamine.
- 31. An imaging member in accordance with claim 29 wherein the film forming binder is a polycarbonate.
- 32. An imaging member in accordance with claim 29 wherein the electrophotographic photoconductive insulating layer has a thickness of from about 4 micrometers to about 50 micrometers after drying.
- 33. An imaging member in accordance with claim 1 wherein the electrophotographic photoconductive insulating layer has a thickness of from about 5 micrometers to about 30 micrometers after drying, wherein the member is free of a charge blocking layer between the supporting layer and the single layer, and wherein the member is free of any anti-plywood layer between the supporting layer and the single layer.
- 34. An imaging member in accordance with claim 1 wherein the single layer components are dispersed in a binder selected from the group consisting of polycarbonates, polystyrene-b-polyvinyl pyridine, N,N′-diphenyl-N,N′-bis(alkylphenyl)-1,1-biphenyl-4,4′-diamine; TTA, tri-p-tolylamine; AE-18, N,N′-bis-(3,4,-dimethylphenyl)-4-biphenyl amine; AB-16, N,N′-bis-(4-methylphenyl)-N,N″-bis(4-ethylphenyl)-1,1′-3,3′-dimethylbiphenyl)-4,4′-diamine; and PHN, phenanthrene diamine; and wherein the charge transport comprises aryl amine molecules of the formula
- 35. A photoconductive imaging member comprised of a supporting substrate, and thereover a single layer comprised of a mixture of a photogenerator component, a charge transport component, an electron transport component, and a polymer binder, and wherein the photogenerating component is selected from the group consisting of a metal free phthalocyanine and a perylene.
RELATED PATENT APPLICATIONS
[0001] Illustrated in copending application U.S. Ser. No. 09/302,524, the disclosure of which is totally incorporated herein by reference, is, for example, an ambipolar photoconductive imaging member comprised of a supporting substrate, and thereover a layer comprised of a photogenerator hydroxygallium component, a charge transport component, and an electron transport component.
[0002] Illustrated in copending application U.S. Ser. No. 09/627,283, the disclosure of which is totally incorporated herein by reference, is, for example, an imaging member comprising
[0003] a supporting layer and
[0004] an electrophotographic photoconductive insulating layer, the electrophotographic photoconductive insulating layer comprising
[0005] particles comprising Type V hydroxygallium phthalocyanine dispersed in a matrix comprising
[0006] an arylamine hole transporter, and
[0007] an electron transporter selected from the group consisting of
[0008] N,N′-bis(1,2-dimethylpropyl)-1,4,5,8-naphthalenetetracarboxylic diimide represented by the following structural formula
1
[0009] 1,1′-dioxo-2-(4-methylphenyl)-6-phenyl-4-(dicyanomethylidene)thiopyran represented by the following structural formula
2
[0010] wherein each R is independently selected from the group consisting of hydrogen, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms and halogen, and
[0011] a quinone selected from the group consisting of
[0012] carboxybenzylnaphthaquinone represented by the following structural formula
3
[0013] and ter(t-butyl) diphenolquinone represented by the following structural formula
4
[0014] and
[0015] mixtures thereof, and a film forming binder.
[0016] The appropriate components and processes of the above copending applications may be selected for the invention of the present application in embodiments thereof.