How do I turn on and off the Brother HL-B2080Dw printer?

To turn on the machine, press the Power On/Off button. To turn off the machine, press and hold the Power On/Off button. The LCD will display [Shutting Down] for a few seconds before the machine powers off completely.

From the official Brother HL-B2080DW Monochrome Laser Printer manual, page 6

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