Enter your date range making sure that the Start Date is earlier than the End Date, and click Submit.
This function will only show you orders that have already been invoiced, not open orders or bids, or cancelled invoices. You will be returned a page displaying all of the orders within that date range. Use your browser's print command to print the invoices.
Depending on the number of invoices, it may take a few minutes for the page to load, even on high speed connections.