An original sheet feeding apparatus is provided with a press roller to press sheets placed in a sheet input section thereof against a take-in roller, thereby ensuring that when the number (and therefore, the weight) of the sheets to be fed decreases, the sheets can still be assuredly fed therethrough....http://www.google.fr/patents/US5219156?utm_source=gb-gplus-shareBrevet US5219156 - Automatic orgiinal sheet feeding apparatus
