A:Answer some scan beds scan as a document is pulled across the light source and scanner head, while others allow you to place your document on the scanning bed. I suggest you look closely at the product description or go to the manufactures website. NOTE: The product ID can vary, depending upon the store you are making your purchase from. The manufacturer, probably makes several products with the same features, only different product numbers, or the products have subtle differences. Look for the one that starts out like yours, and may differ at the end or have one number or letter different.