Lexmark MX421 Users Guide PDF - Page 243
ENERGY STAR, Temperature information, Laser notice, Power consumption, Product power consumption
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Notices 243 To prevent damage from electrostatic discharge when performing maintenance tasks such as clearing paper jams or replacing supplies, touch any exposed metal frame of the printer before accessing or touching interior areas of the printer even if the symbol is not present. ENERGY STAR Any Lexmark product bearing the ENERGY STAR emblem on the product or on a start-up screen is certified to comply with Environmental Protection Agency (EPA) ENERGY STAR requirements as configured when shipped by Lexmark. Temperature information Ambient operating temperature Shipping temperature Storage temperature and relative humidity 10 to 32.2°C (50 to 90°F) -40 to 43.3°C (-40 to 110°F) 0 to 40°C (32 to 104°F) 8 to 80% RH Laser notice The printer is certified in the U.S. to conform to the requirements of DHHS 21 CFR, Chapter I, Subchapter J for Class I (1) laser products, and elsewhere is certified as a Class I laser product conforming to the requirements of IEC 60825-1: 2014. Class I laser products are not considered to be hazardous. The printer contains internally a Class IIIb (3b) AlGaInP laser that is nominally 15 milliwatts operating in the wavelength region of 650-670 nanometers and enclosed in a non-serviceable printhead assembly. The laser system and printer are designed so there is never any human access to laser radiation above a Class I level during normal operation, user maintenance, or prescribed service conditions. Power consumption Product power consumption The following table documents the power consumption characteristics of the product. Note: Some modes may not apply to your product.