HP Color LaserJet 9500 Printer series - Manual (Page 220)

http://www.hp.com/support/lj9500
218 Chapter 9 – Specifications and regulatory information Rev. 1.0
Power requirements and circuit capacity
Values subject to change: see http://www.hp.com/suppor t/lj9500 for current information.
Caution Power requirements are based on the country/region where the printer is sold. Do not convert operating
voltages. This can damage the printer and void the product warranty.
110-volt models 220-volt models
Power requirements 100 to 127 volts (+/-10%)
50 to 60 hertz (Hz) (+/-2 Hz) 220 to 240 volts (+/-10%)
50 to 60 Hz (+/-2 Hz)
Minimum recommended circuit
capacity 15.0 amps 10.0 amps