To realize an image formation apparatus capable of making effective use of user's waiting time.

If predicted required printing time required until printing that is being executed is over is compared with predicted required viewing time of viewing information displayed on display means, and a difference therebetween is equal to or greater than a predetermined threshold, at least one of a process on the printing that is being executed and a process on the viewing information is changed so that the predicted required printing time and the predicted required viewing time become closer.