PT-D450 FAQs & Troubleshooting PT-D450 Not your product? Sort by Updated Date Popularity 4 Results 1. 01/08/2018 Why doesn't my printer turn on when the Power key is pressed? 2. 16/11/2015 When I press the print key, the power turns off. 3. 17/09/2014 The display remains blank after turning on the power. 4. 03/09/2014 Which brands of Ni-MH rechargeable batteries do you recommend? More FAQs (English only) Machine FAQs & Troubleshooting