Not what I assumed, at all!
Access can't scan things directly. But you can use your scanner and its OCR
software to create a text file containing the names and account numbers, and
then import that into Access.
If possible, create it as a tab-delimited or CSV file, which (with a bit of
luck) Access will be able to import directly. Otherwise, the OCR software
may be able to scan the document into Excel format, which Access can also
import.
You may need to edit the scanned file to get rid of various glitches from
the OCR process before it will import cleanly.