Franking involves stamping. Oxford meening of Franking is stamp a mark to indicate that amount has been paid.
I am trying to umnderstand from your quiry , If I am not wrong you want to know the difference between Franking and Printed Stamp Papers. If it is true, NJS ( Non Judicial Stamp ) Paper can be purchased from the Stamp Vendor and later on you can type on it. Because of Telgi effect Govt brought some changes. You first prepare a document on paper and before signing parties on it, take it to nominated Branch of a Bank pay the stamp duty there and then the bank will put stamp on your document indicating the value of the stamp duty. That is called franking.