7.Be sure your paper has a clean, straight edge, and then fit the first five holes in the paper over the sprocket pins as shown below. The side of the paper that you want to print on should be facing you. Now close the sprocket covers.
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8.Slide the right sprocket so that the paper is straight and has no wrinkles. Lock the sprocket in place by pushing up the sprocket lock lever. After you lock the right sprocket, it may still move slightly; this is normal.
sprocket lock lever
Note:
Be careful not to pull the paper too tightly when adjusting the right sprocket.
Paper Handling