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GO TO WWW.CANON.COM HOME PAGE THEN SELECT CONSUMER PRODUCTS.THAT SHOULD GO TO DOWNLOAD LIBRARY.GO TO PRODUCT MENU.1-SCANNERS,2-CANOSCAN SERIES,3-MODEL D646U THEN PRESS GO.THAT SHOULD TAKE YOU TO DRIVERS&DOWNLOADS.AND YOU SHOULD FIND ALL YOU NEED THERE. HOPE THIS HELPS YOU WITH ALL YOUR NEEDS. GOOD LUCK.