Electrophotographic photoconductor
AssigneeRicoh Company, Ltd.
InventorsKiyoshi Sakai, Mitsuru Hashimoto, Masafumi Ohta, Masaomi Sasaki
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Abstract
An electrophotographic photoconductor is prepared by forming a photoconductive layer containing a hydrazone compound therein on an electroconductive support member. The hydrazone compounds represented by the following general formula, are useful as photoconductive materials and as charge transport materials for use in electrophotography: ##STR1## wherein R.sub.1 represents a methyl group, an ethyl group, a 2-hydroxyethyl group, or a 2-chloroethyl group, and R.sub.2 represents a methyl group, an ethyl group, a benzyl group or a phenyl group.
Claims6
An electrophotographic element comprising:
- an electroconductive support member;
- a charge carrier producing layer comprising an azo pigment having a styrylstilbene group, as a photoconductive material effective for producing charge carriers;
- and
- a charge transport layer adjacent said charge carrier producing layer, which consists essentially of a hydrazone having the formula ##STR32## wherein R.sub.1 is methyl, ethyl,2-hydroxyethyl, or 2-chloroethyl, and R.sub.2 is methyl, ethyl, benzyl or phenyl, and a binder resin selected from the group consisting of polyamide, polyurethane, polyester, epoxy resin, polyketone, polyvinyl ketone, polystyrene, poly-N-vinyl carbazole and polyacrylamide.
Dependencies are inferred from the claim text.