
Class I laser products are not considered to be hazardous. The printer contains internally a Class IIIb (3b) laser that is
nominally a 7 milliwatt gallium arsenide laser operating in the wavelength of 655-675 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.
Laser advisory label
A laser notice label may be affixed to this printer as shown:
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. 490 W (X734): 560 W (X736, X738)
Copying The product is generating hard-copy output from hard-copy original
documents.
530 W (X734): 600 W (X736, X738)
Scanning The product is scanning hard-copy documents. 90 W (X734): 105 W (X736, X738)
Ready The product is waiting for a print job. 60 W (X734): 70 W (X736, X738)
Power Saver The product is in energy-saving mode. 24 W (X734): 26 W (X736, X738)
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.
Notices
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