HP Officejet 6600 e-All-in-One Printer - H711a H711g - Manual (Page 145)

Storage environment
Storage temperature: -40° to 60° C (-40° to 140° F)
Storage relative humidity: Up to 90% noncondensing at a temperature of 60° C (140° F)
Electrical specifications
Power supply
Universal power adapter (external)
Power requirements
Input voltage: 100 to 240 VAC, 50/60 Hz
Output voltage: +32V/+12V at 1094 mA/250 mA
Power consumption
26.64 watts printing (Fast Draft Mode); 17.76 watts copying (Fast Draft Mode)
Acoustic emission specifications
Print in Draft mode, noise levels per ISO 7779
•
Sound pressure (bystander position)
LpAm 55 (dBA) (mono Draft print)
• Sound power
LwAd 6.8 (BA)
Printer specifications 141