Organic electronic device comprising charge-transporting polyester and image forming apparatus
First Claim
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1. An electrophotographic photoreceptor comprising a layer containing a charge-transporting polyester comprising a repeating unit comprising at least one of partial structural units represented by the following formulae (I-a) and (I-b):
- ##STR232## wherein R1 and R2 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, a substituted amino group, a halogen atom or a substituted or unsubstituted aryl group;
X represents a substituted or unsubstituted divalent aromatic group;
T represents a branched divalent hydrocarbon group containing a C2-10 aliphatic moiety; and
k represents an integer of 0 or 1.
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Abstract
An organic electronic device comprises a layer containing a charge-transporting polyester comprising a repeating unit comprising at least one of partial structural units represented by the following formulae (I-a) and (I-b) as a partial structure of repeating unit: ##STR1## where the symbols in the above formulae are defined in the specification.
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Citations
16 Claims
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1. An electrophotographic photoreceptor comprising a layer containing a charge-transporting polyester comprising a repeating unit comprising at least one of partial structural units represented by the following formulae (I-a) and (I-b):
- ##STR232## wherein R1 and R2 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, a substituted amino group, a halogen atom or a substituted or unsubstituted aryl group;
X represents a substituted or unsubstituted divalent aromatic group;
T represents a branched divalent hydrocarbon group containing a C2-10 aliphatic moiety; and
k represents an integer of 0 or 1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- ##STR232## wherein R1 and R2 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, a substituted amino group, a halogen atom or a substituted or unsubstituted aryl group;
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11. An image forming apparatus comprising a photoreceptor, a charging apparatus, an exposing apparatus and a developing apparatus which operates to form on said photoreceptor an electrostatic image which is then developed to form a visible image, wherein said photoreceptor comprising an electrically-conductive support having thereon a photosensitive layer comprising at least one charge-transporting polyester having a repeating unit comprising at least one of partial structural units represented by the following formulae (I-1) and (I-2), and said charging apparatus is a contact-charging apparatus comprises an electrically-conductive member which comes into contact with the surface of said photoreceptor and to which member a voltage is applied:
- ##STR234## wherein R1 and R2 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, a substituted amino group, a halogen atom or a substituted or unsubstituted aryl group;
X represents a substituted or unsubstituted divalent aromatic group;
T'"'"' represents a C1-6 divalent straight-chain hydrocarbon group or a C2-10 divalent branched hydrocarbon group; and
k represents an integer of 0 or 1. - View Dependent Claims (12, 13, 14, 15, 16)
- ##STR234## wherein R1 and R2 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, a substituted amino group, a halogen atom or a substituted or unsubstituted aryl group;
Specification