9.Fit the first few holes in the paper over the sprocket pins as shown below. Now close the sprocket covers.
10.Slide the left sprocket to remove any slack in the paper. Make sure the paper is straight and has no wrinkles. Push the sprocket lock lever back to lock the sprocket in place. After you lock the left sprocket, it may still move slightly; this is normal.
sprocket lock lever
24Paper Handling