Going DHCP and Win XP PCs Lose Printer

Archived from groups: microsoft.public.windowsxp.print_fax (More info?)

I finally got Broadband (in the UK) last week. I took the opportunity to go
DHCP from Fixed IP addresses. It all went smoothly, EXCEPT that the Win XP
PCs on my network cannot now print to the HP OfficeJet d145 directly
attached to my Desktop PC via USB - which is my main printer.
Amazingly enough, my old one remaining Win 98 PC has no problem!
With the XP PCs, they can see the Desktop, they can see the printer, they
can reinstall the printer apparently OK - but they cannot print to it!
Requesting a Test Print gets an immediate error.
I have deleted and reinstalled the main Desktop Printer Driver; I have
deleted and reinstalled the printer driver on the other networked PCs many
time. No joy.
It is weird and very frustrating - any ideas?

--
Neil