1. First open the billing computer, insert the tax control panel, click the billing software, and click Login.

2. Secondly, enter the invoicing interface, click Invoice Fill, check that the invoice number on hand is different from that in the system, and click OK.

3. Finally, enter the filling interface, first check the correspondence between the paper invoice code and the billing software, then put the invoice on the printer, input the billing information of the customer, copy it and check it again, and then print it after it is correct.