An image forming device including: a platen glass on which a document is placed; a platen cover that presses and retains the document placed on the platen glass; an engagement portion provided at a side surface of the platen cover; a link component attached to a side surface of the device main body to be movable in a substantially vertical direction; a groove portion provided at an upper end portion of the link component, that engages with the engagement portion when the link component is moved substantially upward from a housed position thereof, whereby the platen cover opens or closes due to movement of the link component, and that does not engage with the engagement portion when the link component is at the housed position; and an operating portion provided to be positioned beneath the platen cover, for moving the link component in the substantially vertical direction, is provided.