1. Wear the adhesive film. When threading the film, first turn off the power, then confirm the film winding direction, find the counterclockwise direction, and place it on the front film rod to fix it.

2. Pay attention to whether the front and rear fixing splints of the film are tightly combined with the film. If they cannot be tightly combined, you can use a utility knife to cut the inside of the film tube diagonally before inserting it.

3. After putting on the adhesive film, use tape to stick the adhesive film firmly to the paper take-up tube of the rear film rod.