use lpadmin tool to setup the printer, then you may have to create some filter to have a good print settup.See link http://developers.sun.com/solaris/articles/basicprinting.html
I find CUPS a lot easier to use than the default Solaris printer software. This is especially true if you used CUPS before (say on Linux or other UNIX-class systems). I have a writeup at http://blogs.sun.com/DanX/entry/using_cups_print_server_for