What voltage specifications does this printer require?
The printer requires USA: 110-127V +/-10%, or EUR/ASIA/Oceania: 220-240V +/-10%, depending on your region. The machine should be installed near the power outlet with sufficient space around the power plug so it can be easily unplugged in an emergency. (Page 8)
From the official Canon MF1643IF Ii Printer manual, page 8
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