Image data scanned by way of a scanner controller is transferred from a memory controller to a memory by way of a G bus. A CPU reduces the image data stored in the memory by thinning processing or the like, and displays the image data on an operation panel by way of a B bus and interface. In this manner,...http://www.google.com.au/patents/US20050021883?utm_source=gb-gplus-sharePatent US20050021883 - Input/output control apparatus