An image forming system includes an image forming apparatus which forms an image on a sheet, an image reading apparatus which reads the image formed on the sheet by the image forming apparatus, and a finisher which performs a post-printing process with the sheet. The image forming system further includes: a paper path which is provided in the image reading apparatus and through which the sheet is passed; and an electricity eliminator which is arranged in the upstream side of the finisher to eliminate static electricity of the sheet, wherein the electricity eliminator applies at least one of water and charge to front and back sides of the sheet.