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 (pay attention to choose special ticket and ordinary ticket), check the difference between the invoice number on hand and 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 customer billing information, copy it and check it again, and then click Print if it is correct.