Image Number 2 for United States Patent #6950200.
When an image forming operation by a copying machine is completed, a memory recall key is displayed on a touch panel of an operation panel. If a user intends to output image data again, which has been stored in the copying machine and output once, the user presses the memory recall key. If the memory recall key is pressed before a predetermined time passes from the point of time when the image data to be output again is first output, that image data is directly output again. On the other hand, if the memory recall key is pressed after the predetermined time passes from the first output of the image data to be output again, that image data is output again on condition that a password number is entered.