A data processing apparatus includes a receiver for receiving image data having a plurality of graphic events; (b) for controlling an image data storage memory so that the received image data is stored in the memory in the order of from a higher display priority level of the graphic events based on prescribed display priority levels of the graphic events and a controller for controlling the image data storage memory so that the stored image data is transferred in the order of from a higher priority level of the graphic events to a drive control.