Empty the invoice machine after sale. When filing tax returns on the tax-controlled invoice machine, it is suggested that the detail card is full, and you can go to the invoice machine to empty it after sale. Due to the limited storage space of the Golden Tax Card and Golden Tax Tray, this prompt indicates that the number of invoices issued in this period in the Golden Tax Tray has reached the maximum, that is, the maximum capacity of the Golden Tax Tray, and no more invoices can be issued.