Always be wary of plugging in suspected broken electronics into mains voltage of 120/220 VAC! IF SOMETHING SMOKES OR SMELLS BAD UNPLUG IT IMMEDIATELY!

Verify that the power adapter into the transformer brick itself is plugged in securely.

Check that the particular wall socket you are using is hot (plug in your phone charger and make sure it charges your phone).

Plug in the power supply to the wall outlet, but DO NOT plug it into the printer yet!

Check for a blue LED to come on to say the unit is powered up.