An example image forming device includes a wakeup source to detect an event for cancelling a power saving mode of the image forming device, a display, a processor, and a memory to store instructions executable by the processor. By executing the instructions, the processor is to display, through the display, a setting screen including a user interface to set an operation of the wakeup source, obtain information on a condition for cancelling the power saving mode based on setting information of the wakeup source received from the setting screen, and cancel the power saving mode in a case where a cancellation condition included in the information on the condition for cancelling the power saving mode is met in the power saving mode.