Patent ID: 7809772

Claim:
A data processing device comprising: a display device including a display screen that displays: an instruction acceptance image that is an image displayed on the display screen to describe an instruction related to a predetermined processing operation; and an explanation that is another image displayed on the display screen to explain manipulation of the instruction acceptance image to input the instruction, wherein an instruction acceptance unit accepts the instruction inputted by the manipulation for the data processing device or an external device to execute the instruction related to the predetermined processing operation; a change unit that changes a display aspect of the instruction acceptance image displayed on the display screen, wherein the change unit accepts a change in the display aspect of the instruction acceptance image that corresponds to a change in a display aspect of the explanation displayed using display data; and a control unit that changes a display aspect of the explanation so as to correspond to the display aspect of the instruction acceptance image changed by the change unit, wherein the control unit generates data used for displaying the explanation that is being changed in accordance with the display aspect of the instruction acceptance image changed by the change unit, stores the data in a storage unit, and controls the display device to display the explanation using the data stored in the storage unit, the storage unit storing the display data including data used for displaying the instruction acceptance image.