HP LaserJet 4250TN

I am about to pull my hair out on this problem. We have been having hung
network print jobs on two HP LaserJet 4250 TN printers since January. We
have patched iPrint and then had to rev back. We still have the problem.
I have deleted and recreated these printer agents. I have had two test
machines in here and they worked fine. The problem is intermittent. HP
really thinks it is Novell.

We have a mix of HP 4000, 4050, 4345, and 4200, which all work fine. It's
just these two 4250s. They also had to have their formatters replaced
because they had hardware problems.

Does anyone have any ideas? I just don't know how to pinpoint the exact
problem! Thanks in advance.