2. Secondly, delete the registered LBP3000 printer and use the command to complete the printer registration.
3. Then the printer uses USB interface and uses lpinfo command to find the uri of the printer. The default value is lp0.
4. Finally, run sudocaptstatusui-PLBP3000, and the pop-up window will display "Readytoprint", indicating that the printer is ready and there is no problem with the printing test.