Below is the output with the above mentioned additions.

rundll32 printui.dll,PrintUIEntry /if /b "HP tester" /c "\\E6EHT62" /f "C:\hplj4
250\hpc4x50c.inf" /r "IP_10.61.63.62" /m "HP LaserJet 4250 PCL 6" /z /u
The operation completed successfully.