Patent ID: 7509072

Claim:
An image forming apparatus including a main body and an attaching part detachable to its main body, said attaching part including a communication device for carrying out non-contact information communication with a communication section of a communication unit included in the main body of the image forming apparatus, the image forming apparatus comprising: an electromagnetic shield material which covers at least said communication device and said communication section, when said attaching part is attached to the main body of the image forming apparatus; an attaching part containing section covering the entire body of the attaching part and provided for fixing the attaching part to the main body so that said communication device is disposed opposite to said communication section; wherein said communication section is provided inside the attaching part containing section on a surface thereof; wherein said attaching part is rotatably disposed inside the attaching part containing section; wherein said electromagnetic shield material is provided on an outer surface or an inner surface of the attaching part containing section, or said electromagnetic shield material forms said attaching part containing section; so that no electromagnetic shield material is provided between an antenna section of the communication section and an antenna of the communication device.