What are the required power settings for the HP LaserJet Managed E45028?
The printer uses a voltage range of 100-127 Vac or 220-240 Vac at 50/60 Hz and must be connected to a grounded AC outlet. Ensure that your power source meets the printer's voltage requirements, which are indicated on the printer label. (Page 3)
From the official HP Color Laserjet Managed E45028 manual, page 3
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