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100
Notices
Noise emission levels
The following measurements were made in accordance with ISO 7779 and reported in conformance with ISO
9296.
Printer energy consumption
The following table documents the power consumption characteristics of the printer.
The power consumption levels listed in the previous table represent time–averaged measurements.
Instantaneous power draws may be substantially higher than the average.
Power Saver
This printer is designed with an energy–saving mode called Power Saver. The Power Saver Mode is equivalent
to the EPA Sleep Mode. The Power Saver Mode saves energy by lowering power consumption during extended
periods of inactivity. The Power Saver Mode is automatically engaged after this printer is not used for a
specified period of time, called the Power Saver Timeout. The factory default Power Saver Timeout is 30
minutes for the Lexmark X340.
By using the printer configuration menus, the Power Saver Timeout can be modified between 1 minute and 240
minutes. Setting the Power Saver Timeout to a low value reduces energy consumption, but may increase the
response time of the printer. Setting the Power Saver Timeout to a high value maintains a fast response, but
uses more energy.
Total energy usage
It is sometimes helpful to calculate the total printer energy usage. Since power consumption claims are
provided in power units of Watts, the power consumption should be multiplied by the time the printer spends in
each mode in order to calculate energy usage. The total printer energy usage is the sum of each mode's
energy usage.
1–meter average sound pressure, dBA
Printing 52
Scanning 48
Copying 52
Idling 30
Mode Description Power consumption
Printing Printer is generating hard copy output 420 W
Ready Printer is waiting for a print job 70 W
Power Saver Printer is in energy saving mode 13 W
Off Printer is plugged into a wall outlet, but
switch is turned off
0 W