PURPOSE: To recognize in which order what kind of jobs are under waiting from the attribute information of display and the order of printing by storing plural kinds of data together with the attribute information showing the kinds of those data, and displaying the attribute information of data, for which printing is not completed at present, in the order of printing.

CONSTITUTION: This device is provided with a memory 103 for storing plural kinds of data together with the attribute information showing the kinds of those data, display part 105 for displaying the attribute information of data, for which image forming processing is not completed at preset, in those data in the order of image forming processing, and executing means 104 and 107 for executing the image forming processing of data stored in the memory 103 in the order displayed on the display part 105. Therefore, the user of the device constituted like this can recognize the kinds of jobs and the order of jobs under waiting from the attribute information and its display order displayed on the display part 105.