Patent ID: 7792454

Claim:
An image forming apparatus comprising: an image carrier which is rotated to carry a toner; and a cleaning device including: a cleaning blade in contact with the image carrier with contact pressure for removing the toner remaining on the image carrier; a toner guide roller which is located upstream of the cleaning blade in a rotating direction of the image carrier and which rotates in contact with the image carrier; and a toner ejection regulating member in contact with the toner guide roller to eject the remaining toner appropriately from a space which stores the remaining toner, the image forming apparatus further comprising, a control device which controls the cleaning device so as to change a peripheral speed ratio of the toner guide roller with respect to the image carrier, in response to change in a system speed, wherein the space is formed by enclosure of the image carrier, the cleaning blade, the toner guide roller and the toner ejection regulating member.