I am working on to the alfresco 4.2 community addition.now i have to use the some kind of Scanning feature to scan the hard copy of the document and upload.
I have googled but haven't found any good solution.
Additionally to Alfresco you need a so called capture software which handles the scanning, converting to a PDF, OCR and the filing to Alfresco. There are several solutions available in in the market in different quality with different concepts.
Here a (not complete) list of working solutions I know of in the order of costs: