| 摘要 |
PURPOSE:To enable to reproduce fresh image by forming to reduce the interelectrode distance of photoconductive element arrays from the center to the end, thereby maintaining the resistance value distribution of the photoconductive film over the entire portion substantially constant. CONSTITUTION:The distance L between the electrodes 13 is formed so that the distance Lc of the centers is considerably larger than the distance Le at the end part. The values of the distances Lc, Le and the variations of them are calculated by measuring the bright sheet resistance of the photoconductive film 12 and the deformation of the value of the W by experiments. The beat phenomenon of the bright resistance distribution due to side etching of the width of the electrode is cancelled, the conversion to binary value can be facilitated, and fresh image can be reproduced. |
