The disclosure discloses a printer including a CPU that executes a detection process, a first determination process, and a first mode switching process. In the detection process, a type of a storage body is detected. In the first determination process, it is determined on the basis of a detection result whether the type of the storage body attached to the attaching part is a first type in an ordering state associated with insufficiency in quantity or a second type other than the first type. In the first mode switching process a control mode is switched from a normal mode prepared in advance correspondingly to the second type to a medium-saving mode prepared in advance correspondingly to the first type for reducing a consumption amount of the print-receiving medium than the normal mode, in the case that the type is determined as the first type.