Lexmark C750 Service Manual - Page 25

5060-00x Acoustics All measurements are made in accordance with ISO 7779 and conform with ISO 9296. 1-Meter average sound pressure 51 dBA 42 dBA 53 dBA 42 dBA Model Lexmark C750(n) Lexmark C750dn Status 2400 image quality printing Idle (standby) 2400 image quality printing Idle (standby) Environment Printer temperature and humidity • Operating - Temperature: 60 to 90° F (15.6 to 32.3° C) - Relative humidity: 8 to 80% - Maximum wet bulb temperature: 73° F (22.8° C) - Altitude: 10,000 ft. (0 to 3,048 meters) - Atmospheric pressure: 74.6 kPa • Power off - Temperature: 50 to 110° F (10 to 43.3° C) - Relative humidity: 8 to 80% - Maximum wet bulb temperature: 80.1° F (26.7° C) - Altitude: 10,000 ft. (0 to 3,048 meters) - Atmospheric pressure: 74.6 kPa • Ambient operating environment* - Temperature: 60 to 90° F (15.6 to 32.2° C) - Relative humidity: 8 to 80% • Storage and shipping (packaged printer) with or without print cartridge - Temperature: -40 to 110° F (-40 to 43.3° C) • Print cartridge - Temperature: -40 to 110° F (-40 to 43.3° C) In some cases, performance specifications (such as paper OCF, EP cartridge usage) are measured at an ambient condition. General information 1-5