1. in the tax UKey invoicing system, click system maintenance.
2. data replacement, online replacement, click online import, and the original equipment directory.
3. in the input box, select the directory where the old equipment database file is stored in the tax number folder.
4. The serial number of the original equipment requires you to enter the serial number of the old equipment.
5. click the import button to check whether the current equipment is allowed to be reissued. after the verification is passed, the data will be reissued.