Electrophotographic photoreceptor and charge-transporting material for electrophotographic photoreceptor

Abstract

A charge transporting material for use in an electrophotographic photoreceptor, which comprises a compound represented by the formula (1); and an electrophotographic photoreceptor using this charge transporting material. As the electrophotographic photoreceptor using the charge transporting material, there are illustrated, for example, a lamination type photoreceptor having a charge generating layer 2 and a charge transporting layer 3 and, as needed, an interlayer 7, and a single layer type photoreceptor. In the formula, R<1> to R<5> each independently represents a hydrogen atom, an alkyl group, a halogen atom, an alkoxy group, an aryl group or a substituted aryl group, and R<6> represents a hydrogen atom, an alkyl group, an aryl group or a substituted aryl group.

Description

technical field [0001] The present invention relates to an electrophotographic photoreceptor which can be advantageously used as a photoreceptor in a copying or recording device based on an electrophotographic system, such as an electrophotographic copier, a laser beam printer, a printing machine with a liquid crystal shutter, In devices such as LED printers, the present invention also relates to charge transport materials used in photoreceptors. Background technique [0002] As a photoconductive material used in an electrophotographic photoreceptor, inorganic materials such as selenium, selenium-tellurium, arsenic triselenide, cadmium sulfide, zinc oxide, or amorphous silicon have conventionally been widely used. However, electrophotographic photoreceptors using such inorganic photoconductive materials suffer from such problems that they are poor in flexibility, sensitive to thermal or mechanical shock, too expensive to produce, and somewhat toxic. [0003] In recent years...

AI Technical Summary

Problems solved by technology

However, electrophotographic photoreceptors using such inorganic photoconductive materials suffer from such problems that they are poorly flexible, sensitive to thermal or mechanical shock, too expensive to produce, and somewhat toxic

For example, after film formation, or even when film formation proceeds well, crystals are precipitated, sufficient surface potential cannot be maintained in the dark, and surface potential cannot be sufficiently lowered after irradiation with light (low sensitivity and high residual potential)

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