An image forming apparatus structured with an image carrier; a developing device for making a toner image by using a toner having resin particles, which are obtained through particle formation in an aqueous medium; a transfer device for transferring the toner image onto a transfer material; and a cleaning device for removing residual toner remaining on the image carrier after transferring, wherein the cleaning device has: a cleaning roller having a conductive or semi-conductive resilient body; a cleaning blade made of a resilient material and provided downstream the cleaning roller; a power source to apply a bias voltage on the cleaning roller; and a collecting member to collect the toner removed by the cleaning roller; and wherein the absolute value of the charge amount of the toner used in the image forming apparatus is between 20 50 .mu.C/g.