Electrophotographic photoconductor drum with weight-controlling member

摘要

An electrophotographic photoconductor drum having a cylindrical hollow support with a length L (cm), provided that L is 30 cm or more, a photoconductive layer provided on an external surface of the cylindrical hollow support, with a total weight of the support and the photoconductive layer being W1 (g), and a weight-controlling member, with a total weight of the above-mentioned weight W1 (g) and the weight-controlling member being W2 (g), the length L, the weight W1 and the weight W2 satisfying the relationship of formula (1) of log(W1/L3)-2.4.