Patent ID: 7185887

Claim:
An apparatus to switch a paper feed direction of a paper for an image forming device having a frame, the apparatus comprising: a paper feeding path of the paper; a paper guide part disposed across the paper feeding path to be movable from an initial position to a paper passing position; a supporting part to rotatably fix the paper guide part to the frame of the image forming device; an elastic restoring part to restore the paper guide part from the paper passing position to the initial position; and a restoring force blocking part on the supporting part to receive the elastic restoring part, the restoring force blocking part rotating with the paper guide part and the supporting part, the restoring force blocking part comprising a side which is not in contact with the elastic restoring part when the paper guide part has not rotated beyond a predetermined angle relative to the initial position, the side of the restoring force blocking part contacting and elastically deforming the elastic restoring part when the paper guide part rotates past the predetermined angle so that a force of the elastic restoring part acts on the paper guide part via the elastic restoring part and the supporting part only when the paper guide part fixed to the supporting part rotates beyond the predetermined angle.