Patent ID: 8095043

Claim:
An image forming apparatus comprising a photoconductor, a toner image forming section for forming a toner image on the photoconductor, a contact member that is switchable between a contact state and a separate state with respect to the photoconductor so that the contact member contacts with the photoconductor during image formation period, and a non-image-formation-period control section that performs control to prevent contamination of a surface of the photoconductor during non image formation period, and is arranged to perform a first mode and a second mode at separate times, wherein the first mode being configured to hold the photoconductor and the contact member separate from each other during the non image formation period, and the second mode being configured to, during the non image formation period, perform an abrasion process for a predetermined time by rotating the photoconductor with a larger speed difference between the photoconductor and the contact member than that of the image formation period, while the photoconductor and the contact member are held in contact with each other, and hold the photoconductor and the contact member separate from each other for a period other than the abrasion process.