Patent ID: 7970303

Claim:
An image forming apparatus comprising: an image bearing body on which surface a solid lubricant is supplied, the image bearing body forming an image and bearing the image on the surface; a charging member to which a voltage is applied, the charging member being in contact with the image bearing body to impart a charge to the image bearing body; a voltage applying section that applies the voltage to the charging member, the voltage applying section being able to switch the voltage between a superimposed voltage on which a DC voltage and an AC voltage are superimposed and a non-superimposed voltage including only the DC voltage; an image forming section that forms a toner image on the surface of the image bearing body charged by the charging member; a transfer device that transfers the toner image formed on the surface of the image bearing body to a transferring body; a cleaning member that comes into contact with the surface of the image bearing body to scrape an unnecessary substance from the surface after the toner image is transferred to the transferring body; and a voltage switching section that switches the voltage to be applied to the charging member by the voltage applying section between the superimposed voltage and the non-superimposed voltage according to an amount of the solid lubricant on the image bearing body.