In an image transferring apparatus of the invention, a transfer roller which comes in press contact with a sheet sent through a sheet conveyance path and transfers a toner image formed by an image forming section onto the sheet is constructed to be capable of being pulled out from a main body frame, and after pulling from the main body frame, when it is again mounted to the main body frame, it can be easily mounted to the main body frame without receiving a reaction force caused by a pressing force to bring the transfer roller into press contact with the sheet.