Hi there, here is the history, hope it assists.
Printer: HP Photosmart C6183 All-in-One
Originally installed when running OS10.4, networked through my Etisalat Wireless home network.
Worked perfectly on all computers (iMac, Macbook, 2 x windows laptops). At this stage, following a restart of the Macs, a HP set-up assistant appears, but unable to complete the setup process, as the Printer didn't appear on its list (despite working perfectly).
Installed OS10.5 Printer continues to work perfectly on all computers. Now the HP setup assistant can recognise the printer, so I complete the setup process, thereby not having the annoying assistant appear, following a restart.
BUT, now the Macs don't send their printer jobs to the printer. The printer shows 'printer ready' in the device manager, but no jobs are appear on its list??
I download the Mac 10.5 software to the iMac, no improvement.
iMac is able to send test page, which successfully prints, this really confused me!
Thats about it really, hope someone can make some sense out of this.