What are the operating environment requirements for the HP Color LaserJet Pro MFP M477?
The recommended operating temperature range is 15° to 27°C (59° to 80.6°F), with an allowed range of 15° to 30°C (59° to 86°F). The recommended relative humidity is 20% to 70% non-condensing, with an allowed range of 10% to 80% RH non-condensing. Operating outside these ranges may affect printer performance. (Page 13)
From the official HP Color LaserJet Pro MFP M477 Multifunction Printer manual, page 13
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