I've found ABBY FineReader to be a useful tool to help me with this. Most of the xeroxed notes are of very poor quality. Yet I've been able to successfully scan and edit them into word files.
Here are the steps. (Click directly on the pictures to enlarge them.)
First connect your scanner to your computer and place the book or document to be scanned face down on the scanner.
Step 3: Check or uncheck as per your requirements, "Keep pictures" and "Keep headers and footers".
Step 4: Select "Scan to Microsoft Word". You'll be taken to the page displayed below.