There is provided a printer including a head configured to discharge a liquid onto a printing surface of a printing medium, the liquid being curable by applying energy; an energy applying unit; a moving device which relatively moves the head and the energy applying unit with respect to the printing medium; and a controller. The controller executes discharge of the liquid from the head onto the printing surface while relatively moving the head and the printing medium; application of first energy and second energy from the energy applying unit to the liquid, while relatively moving the energy applying unit and the printing medium; and decision of an added-up energy amount of the first energy applied to the liquid on the printing surface from the energy applying unit until the second energy is applied after the application of the first energy depending on a state of the printing surface.