LPR printing problem

I have a FreeBSD-4.5r box set up with a HP printer, and it is working fine. I also have in the same office 6 NT servers (NT4sp6a) I want to print to that printer. I have LPR printing enabled on the servers and can add the printer device to the NT4 boxes, but when I try to print a test page the print queue window shows access denied. On the FreeBSD box is /etc/hosts.lpd, in which I have the server names listed, (and I have also added the server ip addresses). I have also put the server names andIP addresses in the /etc/hosts file. What am I missing?