1. An image forming apparatus that forms an image on a sheet by an electrophotographic system, the image forming apparatus comprising: an image bearing body for rotating in a given direction; a latent image forming section for forming a latent image on said image bearing body; a development section for developing said latent image using toner to form a toner image on said image bearing body; a transfer section for transferring said toner image to a transferred body; a pressuring and contacting section for pressuring and contacting said transfer section against and with said image bearing body via said transferred body; a cleaning blade contacting with said image bearing body, the cleaning blade being disposed to remove residual toner remaining on said image bearing body after said toner image is transferred to said transferred body by said transfer section; and a controller for controlling each section of said image forming apparatus, wherein said controller includes an analyzer for analyzing a print pattern of the image to be formed on the sheet, and an adjuster for controlling said pressuring and contacting section to change a contact state between said image bearing body and said transferred body while adjusting an image patch formed in a domain corresponding to an inter-sheet portion between the sheet and the next sheet on said image bearing body according to an analysis result of said analyzer.