An image output apparatus, which outputs an image on a recording medium, and which is activated in an activation mode including a first activation mode and a second activation mode that consumes less power than the first activation mode, the image output apparatus including: a switching unit that selects one of the first activation mode and the second activation mode as the activation mode for activating the image output apparatus; and a storage unit that stores a total amount of power consumed on and after a reference time. The switching unit switches the activation mode from the first activation mode to the second activation mode when the amount of total power consumption stored in the storage unit is equal to or more than a first threshold value.