I have an HP psc 1210 all-in-one printer USB connected to my G4 (OSX 10.3.9).The G4 has a wireless bridge adapter to connect to a Netgear router.In another room is my iMac G5 with Leopard installed,picking up the router thru Airport.Under Tiger I could print from my iMac without problem,but I can't now.
First problem was that I couldn't find the psc 1210 in the printer list.I finally got it to add using this workaround that I came across on an Apple discussion.
1 - open browser and type http://localhost:631/admin?op=config-server
2 - below the line "# Show shared printers on the local network" type "BrowseProtocols all"
3 - save changes enter your username + password and you should now see all the cups shared printers. (Click on 'Printers' tab-you should see yours,then try adding printer on your system).

This is for CUPS printers-I don't know if this is the right thing for mine,but I finally could see it,and when I open a 'Print' menu,there it is.Well I can now see my printer but every time I try to print,it stops-the dialogue in the HP print menu goes 'connecting-stopped'. Here's the error log:-

I 05/Nov/2007:13:46:09 +0000 Job 2 Restarted by "dave1".
E 05/Nov/2007:13:46:12 +0000 PID 321 (/usr/libexec/cups/backend/ipp) stopped with status 1!
I 05/Nov/2007:13:46:12 +0000 Hint: Try setting the LogLevel to "debug" to find out more.
I 05/Nov/2007:13:46:12 +0000 Job 2 Backend returned status 1 (failed)
I 05/Nov/2007:13:46:33 +0000 Job 2 Canceled by "dave1".

Does this mean anything to anyone? Any suggestions? I've tried resetting print system,reinstalling latest drivers from HP,etc.Any ideas?