What are the power specifications for the HP Deskjet 2050?

The printer uses power adapter model 0957-2286 with an input voltage of 100-240Vac (+/- 10%) and input frequency of 50/60Hz (+/- 3Hz). An alternate adapter, model 0957-2290, supports 200-240Vac (+/- 10%) at the same frequency. You should only use the power adapter supplied by HP. (Page 2)