Avision AV50F (FF-0803S) - Manual (Page 15)

2.2.2 Turning on the Scanner
Turn the knob on the scanner clockwise to make the blue
pointer points to any number to turn on the scanner. The green
LED will be on.
Note:
Each of the number marks (1, 2, 3, 4, 5, 6) corresponds to its
respective destination in the Button Manager application.
Please refer to Chapter 5 for more details. In this section, any
of them can also represent the “power on” status.
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