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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.
Mode Description Power consumption (Watts)
Printing The product is generating hard-copy output from electronic inputs. 480 W (C540, C543); 500 W (C544, C546)
Copying The product is generating hard-copy output from hard-copy
original documents.
N/A
Scanning The product is scanning hard-copy documents. N/A
Ready The product is waiting for a print job. 34 W (C540, C543); 36 W (C544, C546)
Power Saver The product is in energy-saving mode. <18 W (C540); <16 W (C543, C544, C546)
Off The product is plugged into a wall outlet, but the power switch is
turned off.
0 W
The power consumption levels listed in the previous table represent time-averaged measurements. Instantaneous
power draws may be substantially higher than the average.
Values are subject to change. See www.lexmark.com for current values.
Power Saver
This product is designed with an energy-saving mode called Power Saver. The Power Saver Mode is equivalent to the
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 product is not used for a specified period of time, called the
Power Saver Timeout.
Factory default Power Saver Timeout for this product (in minutes): 20 minutes (C540, C543); 30 minutes (C544, C546)
By using the 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 product. Setting the Power Saver Timeout to a high value maintains a fast response, but uses more energy.
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 supply 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.
Notices
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