| 摘要 |
An apparatus has an image forming device for forming an image on a recording member, a digital computer having a memory storing a program for controlling the image formation by the image forming device, and a display device for displaying a task currently executed by the digital computer in plural tasks contained in the program. The program has a plurality of subprograms which are carried out by the computer in response to different respective timing signals, and the display is controlled by the computer to display also the result of the subprogram.
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