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Electrical specifications
Printer model Electrical specification
C54x low voltage models* 100–127 V at 47–63 Hz, nominal
90–137 V, extreme
C54x 100 volt model 100 V at 47–63 Hz, nominal
90–110 V, extreme
C54x high voltage models 220–240 V at 47–63 Hz (not available in all countries)
198–259 V, extreme
X546dtn MFP low voltage models 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
X546dtn MFP high voltage models 220–240 V at 50–60 Hz, nominal (not available in all countries)
198–264 V, extreme
* 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 C540n, C543dn C544n, C544dn, C544dw, C544dtn
Average power while printing continuously
1-sided (simplex)
2-sided (duplex)
480 W
340 W
500 W
340 W
Average power while idle
Power Saver on
Ready mode
18 W
34 W
18 W
36 W
Max current while printing
100–110 V
110–127 V
220–240 V
8.7 A
7.6 A
4.1 A
8.7 A
7.6 A
4.1 A
Note: Automatic duplex is not supported on the C540n and C544n.
Printer specifications
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