printtool v.3.27 attempted to configure printcap to allow
remote printing on HPLJ4. Remote host complained 'no such
printer'. I manually edited printcap (after saving a copy)
and got lucky as follows:
printcap, in part, read:
I committed the following change:
and printing worked as if printer was local to sending host.
This was a problem with the installer of 5.1. It has been fixed in the
new installer with 5.2. You either upgrade to 5.2 or manually swap
them as you have already done.