Dell W5300 Workgroup Laser Printer - Manual (Page 228)

Noise Emissions Levels
The following measurements were made in accordance with ISO 7779 and reported in conformance with ISO
9296.
1-meter average sound pressure, dBA
Duplex Printing 58 dBA
Simplex Printing 55 dBA
Idling 34 dBA
Laser Notice
The printer is certified in the U.S. to conform to the requirements of DHHS 21 CFR 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.
Class I laser products are not considered to be hazardous. The printer contains internally a Class IIIb (3b)
laser that is nominally a 5 milliwatt gallium arsenide laser operating in the wavelength region of 770-795
nanometers. 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 condition.
Class I laser products are not considered to be hazardous. The printer contains internally a Class IIIb (3b)
laser that is nominally a 5 milliwatt gallium arsenide laser operating in the wavelength region of 770-795
nanometers. 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 condition.
Energy Star
The EPA ENERGY STAR Office Equipment program is a partnership effort with office equipment manufacturers
to promote the introduction of energy-efficient products and to reduce air pollution caused by power
generation.