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Electrical specifications
Printer model
C54x low voltage models*
C54x 100 volt model
C54x high voltage models
X546dtn MFP low voltage models
X546dtn MFP high voltage models
* Using a 220–110 power converter with 110 V printer is not recommended.
Warning—Potential Damage: Lexmark recommends that you do not use voltage converters with printers.
Power requirements
The following tables list the nominal average power requirements (including fuser power).
Lexmark C54x nominal average power requirements
Printing states
Average power while printing continuously
1-sided (simplex)
2-sided (duplex)
Average power while idle
Power Saver on
Ready mode
Max current while printing
100–110 V
110–127 V
220–240 V
Note: Automatic duplex is not supported on the C540n and C544n.
Electrical specification
100–127 V at 47–63 Hz, nominal
90–137 V, extreme
100 V at 47–63 Hz, nominal
90–110 V, extreme
220–240 V at 47–63 Hz (not available in all countries)
198–259 V, extreme
100–110 V (Japan) at 50–60 Hz, nominal
100–127 V at 50–60 Hz, nominal
90–110 V (Japan), extreme
90–137 V, extreme
220–240 V at 50–60 Hz, nominal (not available in all countries)
198–264 V, extreme
C540n, C543dn
480 W
340 W
18 W
34 W
8.7 A
7.6 A
4.1 A
Printer specifications
C544n, C544dn, C544dw, C544dtn
500 W
340 W
18 W
36 W
8.7 A
7.6 A
4.1 A
18
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