Place one screw in the top adapter mounting hole of both of the roll holders. Start turning the screws clockwise until the tip of the screw is just protruding through the inside of the roll holder. The screws are self-tapping.
Place the adapter on the inside of the roll holder. The large side of the adapter is on top. The smooth side (no ribs) faces the middle of the printer.
Align the adapter’s top screw hole to the protruding screw tip and pinch it tightly to the roll holder body. Tighten the screw until there is no gap between the adapter and roll holder.
Do not tighten beyond this point. Over tightening will strip the thread.
Insert a screw in the bottom adapter mounting hole. Pinch the adapter tightly to the roll holder while tightening the screw. Tighten the screw until there is no gap between the adapter and roll holder.
Do not tighten beyond this point. Over tightening will strip the thread.
Repeat steps 1 through 4 for the other adapter and roll holder.