Patent ID: 9557662
Date: 2017-01-31
CPC Classifications: G03G

Claim:
1. An electrophotographic photoreceptor comprising: a conductive substrate, and a single-layer photosensitive layer which is provided on the conductive substrate and contains a binder resin, at least one charge generating material selected from a hydroxygallium phthalocyanine pigment and a chlorogallium phthalocyanine pigment, a first electron transporting material represented by the following formula (1), a second electron transporting material represented by the following formula (2), and a hole transporting material represented by the following formula (3), wherein a total content of all electron transporting materials is greater than or equal to 4 parts by weight with respect to 100 parts by weight of a total solid content of the photosensitive layer, and an average loss elastic modulus E″ of the photosensitive layer, which is obtained by measuring dynamic viscoelasticity at a temperature of from 35° C. to 50° C. and a frequency of 0.5 Hz, is less than or equal to 1.000×10 wherein R wherein R wherein R wherein a weight ratio of the first electron transporting material to the second electron transporting material (the first electron transporting material of the formula (1)/the second electron transporting material of the formula (2)) is from 2/1 to 4/1.