I have found the solution to get this printer working properly.
Code:System > Administration > Printing and right click on your printer, selecting Properties. Settings > Device URI If you see something like socket://your_printer_ip_address:9100 just change socket to lpd and remove the :9100 off the end. Then click on apply.
Mine didn't have the 9100 port, so I just changed socket to lpd and it works perfect now. I found the solution on this webpage: http://p-s.co.nz/wordpress/?p=227