Image forming system

Abstract

An image forming system includes an image carrier that rotates, a charging unit that rotates while being in contact with the image carrier and charges a surface of the image carrier by applying a charging bias, a pressing member that presses the charging unit against the image carrier such that a nip width is generated, a developing unit that develops a latent image formed on the surface of the image carrier with toner, and at least one processor, in which the processor is configured to, in a state in which an absolute value of a surface potential of the image carrier charged by the charging unit is lower than an absolute value of a developing potential of the developing unit, increase an absolute value of a potential of the charging unit with a rectangular wave only for a set time during which instantaneous discharge occurs before and after the nip width of the charging unit to the image carrier and no discharge occurs at a center of the nip width such that the absolute value of the surface potential of the image carrier is higher than the absolute value of the developing potential.

Dependencies are inferred from the claim text.