For example, the network is gone, the network is broken, or the local signal is not good, or your mobile phone is dead, or WiFi is broken, or your mobile phone is dead. At this time, you can print this thing with someone else's mobile phone. If you still can't get it out, you can print it out by computer. If you can't get it, you can go to the merchant who bought the goods and apply for him to send you an electronic invoice.
Electronic invoice is the product of the information age. Like ordinary invoices, they are distributed to merchants in the form of unified issuance by the tax bureau. The invoice number is distributed to merchants with national unified coding and unified anti-counterfeiting technology. The signature mechanism of the electronic tax bureau is attached to the electronic invoice.