| 摘要 |
PURPOSE:To prevent the locally falty charging of the title body usable for a reversal development by specifying a value obtd. by multiplying a mean film thickness of the sensitive body to the admittance of an anodic oxidation film which is subjected a sealing treatment and is mounted on an aluminium substrate. CONSTITUTION:The anodic oxidation film formed by subjecting the anodic oxidation treatment to the aluminium substrate body, is made to undergo the sealing treatment, and the obtd. anodic oxidation film is specified so as to satisfy the inter-relationship shown by the formula (YmXd)<=4X10<-10> (S.m) wherein (d) is the mean film thickness of the anodic oxidation film, Ym is the admittance of the film. An photoconductive layer is mounted on the anodic oxidation film. Thus, the image of the sensitive body having a less tendency for generating a ground fog and a fine black point, etc. due to the presence of the locally fault charging, is obtd. |
