PURPOSE: To easily alter a table for controlling gradation by providing control means for printing image data according to print job read from a memory card by card reading means.

CONSTITUTION: An operator sets a predetermined memory card 29 to a card operating unit 25, and presses a program button of a U/I 22. A controller 21, when sensing depression of the button, designates to read first image data in image data stored in the card 29 to the unit 25, and designates display of a set screen of a program print to a display controller 23. Thus, the unit 25 reads the first image data, expands the data, and transfers it to the controller 23. The controller 23 combines the data transferred from the unit 25 and a screen for setting predetermined print job, and displays it on a monitor.