First Alert ACTION T-1000 - Manual (Page 12)

Installing the Paper Feed Knob
Now that you have decided where to locate your printer, the first step in
setting it up is installing the paper feed knob. Follow these steps:
1. Locate the paper feed knob, which is packed into an indentation in
the white foam material.
2. Insert the knob into the hole on the right side of the printer, as
shown below. Gently rotate the knob until it fits over the shaft.
3. Push the knob in until it is flush with the printer case.
Setting Up 1-5