The operating humidity range is 20% to 80% RH. The storage humidity range for the printer series is a maximum of 90% RH Non-Operating. The recommended operating temperature range in Celsius is 15 to 32ºC. The recommended operating temperature range in Fahrenheit is 59 to 90ºF.
The Storage temperature range in Celsius is -25 to 60°C and the Storage temperature range in Fahrenheit is 40 to 140ºF. EU ROHS and WEE are the required environmental specification for the HP OfficeJet Pro 7740 printer series.
Acoustic Emission Specification
The acoustic power emissions of HP OfficeJet Pro 7740 printer series is 65dB(mono) and 64dB in colour. The acoustic pressure emissions for HP OfficeJet Pro 7740 printer series is 60dbA (draft printing at 19 ppm).