Organic electronic device comprising charge-transporting polyester and image forming apparatus
AssigneeFuji Xerox Co., Ltd.
InventorsToru Ishii, Fumio Ojima, Kiyokazu Mashimo, Tomozumi Uesaka, Tomoo Kobayashi, Katsumi Nukada, Akira Imai, Masahiro Iwasaki
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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.
Claims16
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 R.sub.1 and R.sub.2 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 C.sub.2-10 aliphatic moiety;
- and k represents an integer of 0 or 1.
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 R.sub.1 and R.sub.2 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 C.sub.1-6 divalent straight-chain hydrocarbon group or a C.sub.2-10 divalent branched hydrocarbon group;
- and k represents an integer of 0 or 1.
Dependencies are inferred from the claim text.