There is provided an image forming apparatus capable of reducing the time required to resume image formation by appropriately controlling whether a stopped state transferring process is executed in a case where a printer section is in the operating state and an error that makes image formation by the image forming apparatus impossible has occurred. A CPU carries out an operating state transferring process that causes a printer section to transfer from a stopped state to an operating state and a stopped state transferring process that causes the printer section to transfer from the operating state to the stopped state. The CPU controls whether to carry out the stopped state transferring process in a case where the printer section is in the operating state and an error that makes image formation by the MFP (Multi Function Peripheral) impossible has occurred.