Try your code with PrinterConnection()... it allows you to manage printers with the share name. With Primapstate you have to use the Printer Name.

PrinterConnection -
http://www.kixtart.org/forums/ubbthreads.php?ubb=showflat&Number=203840#Post203840

How to use UDFs -
http://www.kixtart.org/forums/ubbthreads.php?ubb=showflat&Number=81943#Post81943

The rest of the UDFs are here -
http://www.kixtart.org/forums/ubbthreads.php?ubb=postlist&Board=7&page=1