HP LaserJet 3100 All-in-One Printer series - Manual (Page 239)

238 A Specifications EN
Resolution
Print resolution 600 dpi
Scan resolution 600 dpi enhanced; 300 dpi optical with 256 levels of gray
Fax resolution Standard: 203 by 98 dpi; Fine: 203 by 196 dpi; Superfine: 300 by 300
dpi (no halftone); Photo: 300 by 300 dpi (halftone enabled)
Environment
Operating (working or standby) Temperature: 15 to 32.5° C
Humidity: 10% to 80% relative humidity (no condensation)
Storage (unplugged) Temperature: -20° C to 40° C (toner cartridge) -20° C to 60° C (device)
Humidity: 10% to 90% relative humidity (no condensation)
Electrical specifications
Power requirements 100 to 127 volts +/-10% 50 to 60 hertz
220 to 240 volts +/-10% 50 hertz
Power consumption
(in continuous copy mode) 135 watts
Minimum recommended circuit
capacity 4.2 amps (110 volts)
2 amps (220 volts)
Idle power 9 watts
Acoustical emissions (Per ISO 9296)
While copying 5.7 Bel sound power level
Physical
Height 10.8 in (272 mm)
Depth 15.4 in (390 mm)
Width 15.1 in (384 mm)
Weight (cartridge installed) 23.4 lb (10.6 kg)