NW6.5 SP2

I created IPP printer object with access control rights assigned to
specified group. The trouble is all users still can install and print on the
printer. They should be authenticated to eDirectory but they don't! After
login to eDirectory only owner's name of printer task is changing. All
printer tasks will be printed no matter of edir authentication state. Is
this correct?
I don't want to authenticate users by LDAP or create https ipp printers. How
to set ipp to require users edir authentication before they can send tasks
to printer?

PS: NDPS controlled access printers allways require to users be
authenticated to edir.