have you tried using generic drivers from the OS. Just to make sure you are able to connect to the printer.
I need to print to a remote Workcentre 7775 that I have configured with a public IP address. The port forwarding is correctly configure as I can successfully print when using the PC print driver.
But when I use the OS X 10.8 print driver for the Mac Mountain Lion OS, I am unable to connect and print. I get a connection failure. Regardless that I have downloaded the Workcentre 7775 driver package, the installation process tells me that the printer I am attempting to install the driver for is not supported.
What might be the fix?