Patent ID: 6985680
Filing Date: 2006-01-10
Classification: G03G

Abstract:
1. An apparatus for charging an image carrier and for transferring a latent image formed on said image carrier to form an image onto a recording medium, the apparatus comprising: generating means for generating an AC voltage; a charge member whereto AC voltage from said generating means is applied; control means for controlling said generating means so as to flow a constant current according to a control value through a current path from said generating means to said charge member; first output means for outputting an information according to a peak value of said AC voltage applied to said charge member; and second output means for outputting an information according to changes in said AC voltage applied to said charge member, wherein said control means sets said control value based on outputs from said first output means and from said second output means when said AC voltage generated by said generating means has a peak value equal to or higher than a discharge starting voltage of said image carrier.