The main specification for input power is - Single phase, 200 V AC-240 V AC, 50 Hz/60 Hz, less than 12 A
Standby power consumption - less than 1kVA.
Max power consumption (with the UV lights on high and printing) - 1.3kVA or less.
I do not know if the machine will function at lower power levels as I have never tried so you might want to call Mimaki on that.