HP printer wont network print after Leopard upgrade

[zzzuppp]

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,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?
At different times I've tried resetting the print queue,reinstalling the latest drivers from HP,-problem persists:mad:

[gsahli]

(FYI - when you show an error_log, you need to include 4-5 lines above the E line - up to the point where that error PID (process ID, in your case #321) is first started.)

In this case it looks like a failure in ipp, the protocol that OS X uses for print sharing.
I'd try Printer Setup Repair from www.fixamac.net, or Reset Printing System.

[zzzuppp]

Thanks gsahli
I have tried resetting the print system a couple of times.
Here's a fuller log:-
I [06/Nov/2007:12:15:14 +0000] Scheduler shutting down normally.
I [06/Nov/2007:12:15:15 +0000] Saving job cache file "/private/var/spool/cups/cache/job.cache"...
I [06/Nov/2007:12:15:49 +0000] Listening to ::1:631 (IPv6)
I [06/Nov/2007:12:15:49 +0000] Listening to ::1:631 (IPv6)
I [06/Nov/2007:12:15:49 +0000] Listening to 127.0.0.1:631 (IPv4)
I [06/Nov/2007:12:15:49 +0000] Listening to /private/var/run/cupsd (Domain)
I [06/Nov/2007:12:15:49 +0000] Loaded configuration file "/private/etc/cups/cupsd.conf"
I [06/Nov/2007:12:15:49 +0000] Using default TempDir of /private/var/spool/cups/tmp...
I [06/Nov/2007:12:15:49 +0000] Configured for up to 100 clients.
I [06/Nov/2007:12:15:49 +0000] Allowing up to 100 client connections per host.
I [06/Nov/2007:12:15:49 +0000] Using policy "default" as the default!
I [06/Nov/2007:12:15:49 +0000] Full reload is required.
I [06/Nov/2007:12:15:49 +0000] Loaded MIME database from '/private/etc/cups': 52 types, 48 filters...
I [06/Nov/2007:12:15:49 +0000] Loading job cache file "/private/var/spool/cups/cache/job.cache"...
I [06/Nov/2007:12:15:49 +0000] Full reload complete.
I [06/Nov/2007:12:15:49 +0000] Cleaning out old temporary files in "/private/var/spool/cups/tmp"...
I [06/Nov/2007:12:15:51 +0000] Listening to ::1:631 on fd 4...
E [06/Nov/2007:12:15:51 +0000] Unable to bind socket for address ::1:631 - Address already in use.
I [06/Nov/2007:12:15:51 +0000] Listening to 127.0.0.1:631 on fd 6...
I [06/Nov/2007:12:15:51 +0000] Listening to /private/var/run/cupsd on fd 7...
I [06/Nov/2007:12:15:51 +0000] Resuming new connection processing...
E [06/Nov/2007:12:15:51 +0000] Need to set BrowseLDAPDN to use LDAP browsing!
I [06/Nov/2007:13:21:27 +0000] Saving job cache file "/private/var/spool/cups/cache/job.cache"...
I [06/Nov/2007:14:04:03 +0000] Saving job cache file "/private/var/spool/cups/cache/job.cache"...
I [06/Nov/2007:15:21:54 +0000] [Job 4] Adding job file of type application/pdf.
I [06/Nov/2007:15:21:54 +0000] [Job 4] Queued on "psc_1200_series" by "dave1".
I [06/Nov/2007:15:21:54 +0000] [Job 4] Started backend /usr/libexec/cups/backend/ipp (PID 1006)
E [06/Nov/2007:15:21:58 +0000] PID 1006 (/usr/libexec/cups/backend/ipp) stopped with status 1!
I [06/Nov/2007:15:21:58 +0000] Hint: Try setting the LogLevel to "debug" to find out more.
I [06/Nov/2007:15:21:58 +0000] [Job 4] Backend returned status 1 (failed)

[gsahli]

Well, I wish I could say that has helped - but it didn't.
I recommend the free trial of Printer Setup Repair - if that doesn't help, we may be talking reinstall.

[zzzuppp]

I did look up the free trial-but of course it doesn't yet cover Leopard,so it didn't work on the iMac where i have Leopard installed.Should I try it on the G4 which has the Printer USBed? but the problem seems to be with the network...

Yesterday a bizarre thing happened- I tried this again-

(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).

and I managed to print the Test print from that webpage!! using the networked iMac-but trying to print from the files on the iMac doesn't work still.I also tried changing the printer in 'Print & Fax' to an IP/LPD printer but it had the same problem.
I've tried downloading the latest print drivers from HP again.Next I'm going to try reinstalling them from the Leopard disc...