Image processing system, image forming apparatus, method for displaying operating screen, and storage medium

A first image forming apparatus includes a first display and a first touch panel, calculates a location-on-display-surface which indicates a position, on a first display surface of the first display, corresponding to a first touched position on the first touch panel based on first data which shows a positional relationship between the first display surface and the first touch panel, and generates log which indicates, for each time, the calculated location-on-display-surface. A second image forming apparatus includes a second display and a second touch panel, calculates a corresponding position, in the second touch panel, which corresponds to the location-on-display-surface indicated in the log based on second data which shows a positional relationship between a second display surface of the second display and the second touch panel, and displays, on the second display, a screen by using the corresponding position as a second touched position on the second touch panel.