Claims
- 1. An organophotoreceptor comprising:
(a) a charge transport composition comprising molecules having the formula 17where the average n is between 1 and 1000; R1, R2, R3, and R4 are, independently, hydrogen, a branched or linear alkyl group, a branched or linear unsaturated hydrocarbon group, an ether group, a cycloalkyl group, or an aryl group; X is a divalent carbazole group or a divalent biscarbazole alkane group; Y is a divalent sulfonyldiphenylene group; Z is C(R4)—X—C(R3)═O double-bonded to the adjacent N or two hydrogens where each hydrogen is independently single-bonded to the adjacent N; and Q is O or N—N(R1)—Y—N(R2)—NH2; (b) a charge generating compound; and (c) an electrically conductive substrate over which the charge transport composition and the charge generating compound are located.
- 2. An organophotoreceptor according to claim 1 wherein said organophotoreceptor is in the form of a flexible belt.
- 3. An organophotoreceptor according to claim 1 wherein said organophotoreceptor is in the form of a drum.
- 4. An organophotoreceptor according to claim 1 comprising:
(a) a charge transport layer comprising said charge transport composition and a polymeric binder; and (b) a charge generating layer comprising said charge generating compound and a polymeric binder.
- 5. An organophotoreceptor according to claim 1 wherein X is a divalent carbazole group.
- 6. An organophotoreceptor according to claim 1 wherein said charge transport composition comprises a compound with a formula selected from the group consisting of
- 7. An organophotoreceptor according to claim 1 wherein X is a divalent biscarbazole alkane group.
- 8. An organophotoreceptor according to claim 1 wherein said charge transport composition comprises a compound with a formula selected from the group consisting of
- 9. An organophotoreceptor according to claim 8 wherein m is between 5 and 12.
- 10. An electrophotographic imaging apparatus comprising:
(a) a plurality of support rollers; and (b) an organophotoreceptor operably coupled to said support rollers with motion of said support rollers resulting in motion of said organophotoreceptor, said organophotoreceptor comprising:
(i) a charge transport composition comprising molecules having the formula 21where the average n is between 1 and 1000; R1, R2, R3, and R4 are, independently, hydrogen, a branched or linear alkyl group, a branched or linear unsaturated hydrocarbon group, an ether group, a cycloalkyl group, or an aryl group; X is a divalent carbazole group or a divalent biscarbazole alkane group; Y is a divalent sulfonyldiphenylene group; Z is C(R4)—X—C(R3)═O double-bonded to the adjacent N or two hydrogens where each hydrogen is independently single-bonded to the adjacent N; and Q is O or N—N(R1)—Y—N(R2)—NH2;
(ii) a charge generating compound; and (iii) an electrically conductive substrate over which the charge transport composition and the charge generating compound are located.
- 11. An electrophotographic imaging apparatus according to claim 10 comprising a liquid toner dispenser.
- 12. An electrophotographic imaging process comprising:
(a) applying an electrical charge to a surface of an organophotoreceptor comprising:
(i) a charge transport composition comprising molecules having the formula 22where the average n is between 1 and 1000; R1, R2, R3, and R4 are, independently, hydrogen, a branched or linear alkyl group, a branched or linear unsaturated hydrocarbon group, an ether group, a cycloalkyl group, or an aryl group; X is a divalent carbazole group or a divalent biscarbazole alkane group; Y is a divalent sulfonyldiphenylene group; Z is C(R4)—X—C(R3)═O double-bonded to the adjacent N or two hydrogens where each hydrogen is independently single-bonded to the adjacent N; and Q is O or N—N(R1)—Y—N(R2)—NH2;
(ii) a charge generating compound; and (iii) an electrically conductive substrate over which the charge transport composition and the charge generating compound are located; (b) imagewise exposing said surface of said organophotoreceptor to radiation to dissipate charge in selected areas and thereby form a pattern of charged and uncharged areas on said surface; (c) contacting said surface with a toner to create a toned image; and (d) transferring said toned image to a substrate.
- 13. An electrophotographic imaging process according to claim 12 comprising wherein the toner comprises liquid toner comprising a dispersion of colorant particles in an organic liquid.
- 14. A charge transport composition comprising molecules having the formula
- 15. A charge transport composition according to claim 14 wherein X is a divalent carbazole group.
- 16. A charge transport composition according to claim 14 wherein said charge transport composition comprises compounds having a formula selected from the group consisting of
- 17. A charge transport composition according to claim 14 wherein X is a divalent biscarbazole alkane group.
- 18. A charge transport composition according to claim 14 wherein said charge transport composition comprises a compound with a formula selected from the group consisting of
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] The application claims priority to U.S. Provisional Patent Application Serial No. 60/368,297 to Law et al., entitled “Electrophotographic Organophotoreceptors With Novel Polymeric Charge Transport Compounds,” incorporated herein by reference and to U.S. Provisional Patent Application Serial No. 60/368,256 to Law et al. entitled “Electrophotographic Organophotoreceptors With Novel Polymeric Charge Transport Compounds,” both of which are incorporated herein by reference.
Provisional Applications (2)
|
Number |
Date |
Country |
|
60368256 |
Mar 2002 |
US |
|
60368297 |
Mar 2002 |
US |