1. Go to Records, Clients and open the client record.
  2. Select the activity tab
  3. Open the invoice
  4. Change Print Status drop down from Printed to Not Yet Printed.
  5. Go to Mail, Forms, Invoices and reprint.
     
Note: You can also change the print status on the invoice to Reprint to reprint the invoice.  To ensure you are able to reprint invoices with a status of "reprint," in Mail, Forms, Invoices, make sure to Include invoices whose status is "Reprint" or "Both."

Note: If the invoice was deleted, you will need to generate a new invoice to be printed.