lpr: lp: unknown printer

[Dexter <dexter@madalbal.sk>]

Hi,
i have succesfully instaled network printer HP-Color-LaserJet-4650. When
I go http://localhost:631  to administration of printer, theere the name
of the printer is "HP-Color-LaserJet-4650".
I`ve had stupid idea to remove lp printer from system through webmin.
Now my problem is, that on some programs printer is working, but some
not. I do not get even error from grafical program and nothing is
printed. 
Can i make e.g. "lp" alias to "HP-Color-LaserJet-4650". How can i
diadnostic problem?
  Thanks
     Dexter