Lexmark 250dn User's Guide - Page 95

Notices Noise emission levels The following measurements were made in accordance with ISO 7779 and reported in conformance with ISO 9296. 1-meter average sound pressure, dBA Printing 52 Idling inaudible Quiet Mode 49 Sleep / Power Saver Mode inaudible Product energy consumption The following table documents the power consumption characteristics of the product Mode Ready Printing Sleep / Power Saver Description The product is on, but idle. The product is generating hard-copy output from electronic inputs. The product is in energy-saving mode. Power consumption 70W 500 W 20W The power consumption levels listed in the previous table represent time-averaged measurements. Instantaneous power draws may be substantially higher than the average. Off mode If this product has an off mode which still consumes a small amount of power, then to completely stop product power consumption, disconnect the power cord from the wall outlet. Total energy usage It is sometimes helpful to calculate the total product energy usage. Since power consumption claims are provided in power units of Watts, the power consumption should be multiplied by the time the product spends in each mode in order to calculate energy usage. The total product energy usage is the sum of each mode's energy usage. ENERGY STAR Noise emission levels 95