According to an embodiment, an image forming apparatus includes a case having a door which can be opened and closed. A first rotating body, provided in the case, is exposed from the case when the door is opened. A second rotating body, provided in the case, is exposed from the case when the door is opened. The second rotating body forms a nip with the first rotating body. A spacer, detachably provided in the case, separates the first rotating body and the second rotating body when the spacer is attached. The second rotating body forms a nip with the first rotating body when the spacer is detached.