| 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-3620:
Standalone copying: 17 W (ISO/IEC24712) Ready mode: 7.3 W Sleep mode: 1.6 W Power off mode: 0.4 W WF-3640: Standalone copying: 18 W (ISO/IEC24712) Ready mode: 7.8 W Sleep mode: 1.6 W Power off mode: 0.4 W |