The present invention provides the image forming apparatus for successively performing information communication between an attaching part and the main body of the image forming apparatus. The communication-end antenna section 11 is provided in the toner supplying holder-containing section 3 in the main body of the image forming apparatus, so as to face the IC tag in the toner supplying holder 2. The toner supplying holder-containing section 3 is covered with the electromagnetic shield material 7.