| Input voltage range | 100 to 240 V model: 90 to 264 V |
| Rated frequency range | 50/60 Hz |
| Input frequency range | 49.5/60.5 Hz |
| Rated current | 0.8/0.4 A |
| Power
consumption
(with USB connection) |
WF-4630:
Standalone copying: 20 W (ISO/IEC24712) Ready mode: 7.5 W Sleep mode: 1.8 W Power off mode: 0.3 W WF-4640: Standalone copying: 21 W (ISO/IEC24712) Ready mode: 8.2 W Sleep mode: 2.0 W Power off mode: 0.3 W |