SIMULTANEOUS CHARGING AND EXPOSURE FOR PICTORIAL QUALITY

摘要

Apparatus and method for forming an electrostatic latent image on an imaging member having a photoconductive insulating layer has a voltage sensitive corona charging device with a corona generating electrode and a control electrode positioned in charging relationship to the photoconductive insulating layer, means to energize the charging device to charge the photoconductive insulating layer to a first level comprising means to apply a corona generating voltage to the corona generating electrode and to apply a control voltage of a first magnitude to the control electrode, and means to expose the photoconductive insulating layer to an image pattern simultaneously while the charging device is energized.