Electrophotographic organophotoreceptors with novel charge transport compounds
AssigneeSamsung Electronics Co., Ltd.
InventorsKam W. Law, Nusrallah Jubran, Zbigniew Tokarski, Alan R. Katrizky, Ritu Jain, Anatoily Vakulenko
Life of this patent
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Abstract
An organophotoreceptor that includes: (a) a charge transport compound having the formula where R1 and R2 are, independently, a fluorenyl group; R3 and R4 are, independently, hydrogen, an alkyl group, an aryl group, or a heterocyclic group; and X is a sulfonyldiphenylene group; (b) a charge generating compound; and (c) an electrically conductive substrate.
Claims12
An organophotoreceptor comprising:
- (a) a charge transport compound having the formula
- where
- R1 and R2 are, independently, a fluorenyl group;
- R3 and R4 are, independently, hydrogen, an alkyl group, an aryl group, or a heterocyclic group;
- and
- X is a sulfonyldiphenylene group;
- (b) a charge generating compound;
- and
- (c) an electrically conductive substrate.
An electrophotographic imaging apparatus comprising:
- (a) a plurality of support rollers;
- and
- (b) an organophotoreceptor in the form of a flexible belt threaded around said support rollers, said organophotoreceptor comprising:
- (i) a charge transport compound having the formula
- where
- R1 and R2 are, independently, a fluorenyl group;
- R3 and R4 are, independently, hydrogen, an alkyl group, an aryl group, or a heterocyclic group;
- and
- X is a sulfonyldiphenylene group;
- (ii) a charge generating compound;
- and
- (iii) an electrically conductive substrate.
An electrophotographic imaging process comprising:
- (a) applying an electrical charge to a surface of an organophotoreceptor comprising:
- (i) a charge transport compound having the formula
- where
- R1 and R2 are, independently, a fluorenyl group;
- R3 and R4 are, independently, hydrogen, an alkyl group, an aryl group, or a heterocyclic group;
- and
- X is a sulfonyldiphenylene group;
- (ii) a charge generating compound;
- and
- (iii) an electrically conductive substrate;
- (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 liquid toner comprising a dispersion of colorant particles in an organic liquid to create a toned image;
- and
- (d) transferring said toned image to a substrate.
A charge transport compound having the formula
- where
- R1 and R2 are, independently, a fluorenyl group;
- R3 and R4 are, independently, hydrogen, an alkyl group, an aryl group, or a heterocyclic group;
- and
- X is a sulfonyldiphenylene group.
Dependencies are inferred from the claim text.