As discussed in indiana-discuss (thanks to Harry Lu and Norm Jacobs) the problem was in /etc/printer.conf, when I removed the entry _all from that file all goes fine! To disable cups autogeneration of printer.conf file you need to run:
pfexec cupsctl Printcap= thanks!! -- Luca Morettoni <luca(AT)morettoni.net> | OpenSolaris SCA #OS0344 Web/BLOG: http://www.morettoni.net/ | http://twitter.com/morettoni jugUmbria founder - https://jugUmbria.dev.java.net/ | Thawte notary ITL-OSUG leader - http://www.opensolaris.org/os/project/itl-osug/ -- This message posted from opensolaris.org