For windows:

Before uninstall, please ensure the USB port has been removed on your computer

1. “Settings">> ”Devices" >> "Printers & scanners" >> "Lufier Printer P1688B” >> "Remove device"

2.Click “Print sever properties"  >> Find the driver "Lufier P1688B" >> "Remove" >> "Remove drive and driver package" >> Click "OK"

Video Tutorial：