1-6 Service Manual
5025-2xx, 4xx
Power and electrical specifications
The following table specified nominal average power requirements for the base printer configurations. All power
levels are shown in Watts (W). Maximum current is given in Amperes (A).
Low-voltage models
• 110 to 127 V ac at 47 to 63 hertz (Hz) nominal
• 99 to 137 V ac, extreme
100 voltage models
• 100 V ac at 47 to 63 hertz (Hz) nominal
• 90 to 110 V ac, extreme
High-voltage models
• 220 to 240 V ac at 47 to 63 hertz (Hz) nominal (not available in all countries)
• 198 to 259 V ac, extreme
Notes:
• Using a 220 V ac to 110 V ac power converter with a low voltage printer is not recommended.
• Using an inverter to change DC to AC voltage (12 V to 120 V for example) is not recommended.
• All duplex models are ENERGY STAR compliant.
Printing states Lexmark C540n, C543dn
Lexmark C544n, C544dn,
C544dw, and C544dtn
Average power while printing
Simplex 480 W 500 W
Automatic duplex* 340 W 340 W
Average power while idle
Power Saver 18 W 18 W
Ready 34 W 36 W
Off 0 W 0 W
* Automatic duplex is not supported on the C540n and C544n.
Typical electricity consumption
2
Model Mode
Power supply voltage (kwh)
100 V/50 Hz 115 V/60 Hz 230 V/50 Hz
Lexmark C540n, C543dn
TEC
1
3.73 kwh 3.5 kwh 3.92 kwh
TEC
1
—Eco Mode 3.41 kwh 3.30 kwh 3.55 kwh
Lexmark C544n, C544dn, C544dw, C544dtn
TEC
1
3.97 kwh 4.06 kwh 4.20 kwh
TEC
1
—Eco Mode 3.57 kwh 3.42 kwh 3.57 kwh
1
TEC—Typical Electricity Consumption.
2
Energy measurements are made according to ENERGY STAR Qualified Imaging Equipment Typical
Electricity Consumption Test Procedure, and are in units of kilowatts per week (kwh/week). Actual
electricity consumption will vary by device usage.
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