Document reading apparatus and image forming apparatus having wireless IC tag reader

A document reading apparatus includes an integral display portion integrally provided with an area sensor portion and a wireless IC tag reader, and a main CPU for detecting by the area sensor portion reflection light from an object placed on a screen of the integral display portion and detecting by the wireless IC tag reader that a wireless IC tag comes close to the screen. When it is determined that the object is a document based on an area of reflection light from the object, the main CPU switches to a document reading mode for reading the document on the screen by the area sensor portion, and when it is detected that a wireless IC tag comes close to the screen, the main CPU switches to a wireless IC tag reading mode for reading electronic money information of the wireless IC tag by the wireless IC tag reader.