Hello MP. We recommend using the XP-15000 with temperatures ranging from 50 to 95 °F (10 to 35 °C.) Recommended storage temperatures can range from –4 to 104 °F (–20 to 40 °C) when not in use. Please note these suggestions are best practices for using the machine. However, different environmental factors can impact printer functionality. Therefore, we also recommend frequently doing maintenance such as nozzle check printouts and head cleanings to help avoid ink clogging. For more information, please visit our official Support page. Regards, Kevin - The Epson Team.