Organophotoreceptor with an electron transport layer
AssigneeSamsung Electronics Co., Ltd.
InventorsJiayi Zhu, Nusrallah Jubran, Zbigniew Tokarski, James A. Baker, Ronald J. Moudry
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Abstract
Improved organophotoreceptor have an electrically conductive substrate, a charge generation layer comprising a charge generation compound and optionally a charge transport compound, and an overcoat layer comprising an electron transport compound wherein the charge generation layer is between the overcoat layer and the electrically conductive substrate. The organophotoreceptor can optionally comprise a charge transport layer and/or other desired layers. The organophotoreceptors are useful in electrophotographic imaging apparatuses and corresponding processes.
Claims33
An organophotoreceptor comprising:
- a) an electrically conductive substrate;
- b) a charge generation layer comprising a charge generation compound;
- and
- c) an overcoat layer comprising an electron transport compound wherein said charge generation layer is between said overcoat layer and said electrically conductive substrate.
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 an electrically conductive substrate, a charge generation layer comprising a charge generation compound, and an overcoat layer comprising a first electron transport compound wherein said charge generation layer is between said overcoat layer and said electrically conductive substrate.
An electrophotographic imaging process comprising:
- (a) applying an electrical charge to a surface of an organophotoreceptor comprising an electrically conductive substrate, a charge generation layer comprising a charge generation compound, and an overcoat layer comprising a first electron transport compound wherein said charge generation layer is between said overcoat layer and said 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 toner to create a toned image;
- and
- (d) transferring said toned image to a substrate.
Dependencies are inferred from the claim text.