What are the voltage requirements for the HP LaserJet Enterprise M601?
The printer requires either a 100-127 Vac or 220-240 Vac power supply at 50/60 Hz. Use only the provided power cord to connect the unit to an effectively grounded outlet for safety and operational integrity. (Page 4)
From the official HP Laserjet Enterprise 600 Printer M601 manual, page 4
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