Thank you for your comments on the nuances of operating system support by printer manufacturers. I'm delighted that this workhorse printer is operating properly under Mountain Lion.
However, I think you will understand my anger when you see the comment posted to me by their online support chat adviser. I've omitted the identity of the advisor.
Thank you for contacting EPSON's UK Customer Inter@ction Centre.
In response to your query I can confirm that your product is not supported on your current operating system. It was originally designed for the operating systems available at the time of manufacture and whilst EPSON do endeavour to provide drivers for new operating systems, this is not always possible. There are no current plans to release a driver for your product but we are happy to continue supporting it under the operating systems listed as compatible at the time of purchase and will offer assistance or alternative solutions where possible.
I would advise you to consider upgrading your product to one compatible with your new operating system. If you confirm what you use your current model for and what facilities you might like, I would be happy to recommend a new equivalent model that would better suit your current needs.