Search customer record.

Select 'Invoice' tab to view all invoices for that customer.

Select an invoice that needs labels generated.

Select button 'Sorted Item Labels' or 'Item Labels' to generate Zebra (ZPL) printer friendly file.

Run portable program “PrintFile” (“PF” shortcut on desktop).

Select data file (click on “Print File…” button) and open it.

Select printer, eg. Zebra.

Select label size (go to tab Options > Paper Format), eg. 2.00“ x 1.00”.

Check PrintFile settings.

Before spooling print job to printer, restart the printer by turning it off and on.

Print.