Patent ID: 8422904

Claim:
An image forming apparatus comprising: an image forming apparatus main body; a driven member removably disposed in the image forming apparatus main body; a rotary driver that rotates by current flowing, and after the blockage of the current flowing, continuously rotates due to an inertial force; a coupling part that has a driving-side member and a driven-side member, wherein when the driven-side member is mounted to the image forming apparatus main body, the driving-side member and a driven-side member are facing each other, and when the driving-side member and the driven-side member engage each other in the rotating direction, the rotary driver and the driven-side member are coupled to transmit the rotation of the rotary driver to the driven-side member; a controller that controls so that, when the driven-side member is mounted to the image forming apparatus main body, the current flows to the rotary driver, and after the elapse of a certain period of time the current flow to the rotary driver is blocked; an open-close part that is disposed in the image forming apparatus main body so as to open and close freely, and allows the driven member to be attached and removed to and from the image forming apparatus main body; and an open-close detector that detects the opening and closing of the open-close part, wherein the controller further controls, so that when the open-close detector detects that the open-close part closes, the current flows to the rotary driver, and after the elapse of a certain period of time, the current flow to the rotary driver is blocked.