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You see a screen like this:
1 Power button control
2 Selects an HDMI port source
3 Selects a Video port source
4 Selects the USB Display source
5 Selects the network source
6 A/V Mute button control
7 Freeze button control
8 Page Up and Page Down button controls
9 Displays a QR code for connecting with iOS or Android devices using the Epson iProjection
app
10 Displays closed captions
11 Volume button controls
12 Selects the USB device source