PRINTING APPARATUS

PROBLEM TO BE SOLVED: To sufficiently make full use of batteries while preventing an excessive discharge state when a plurality of kinds of batteries are used while being appropriately exchanged.SOLUTION: A CPU 212 of a label creation device 1 determines whether a printing loading voltage detected during printing reaches an exhaustion determination threshold value Tbw and when it is determined that the printing loading voltage reaches the exhaustion determination threshold value Tbw, notification processing is performed. The exhaustion determination threshold value Tbw is set to a threshold value Tha corresponding to a lower limit voltage of an alkaline manganese battery, and a constant load voltage determination threshold value Ths for determining a constant loading voltage is stored. Before determining that the printing loading voltage reaches the threshold value Tha, it is determined whether or not the constant loading voltage reaches the constant load voltage determination threshold value Ths, and when the determination is satisfied, the threshold value Tha is changed to a threshold value Thb corresponding to a recommendation final voltage of a nickel hydrogen battery.