If you need to access all of a Patient's invoices, navigate to their Patient Profile either through their Appointment Card or by typing their name in the searchbar.
Select the Account tab at the top of the page.
Click on the Invoices header to see all of the patient's invoices
Optionally click into an invoice line to see the actual invoice.
You can also print an invoice by clicking on the target invoice, and clicking 'Invoice Actions' on the top right of your invoice