What should I check before plugging in the HP Color LaserJet Pro M452 in a region that uses both 110V and 220V?

In areas where both 110V and 220V are in use, you must verify the voltage of the outlet before connecting the printer. This precaution is specifically called out as a warning to prevent damage to the product. The printer supports either 110-127 Vac or 220-240 Vac. (Page 2)