I own an Epson xp-15000. After having accidentally upgraded to new firmware, I I followed instructions to downgrade with the License utility, paid US $50, and got it going. After printing 2 pages, the printer stops, telling me, that the Maintenance Box is at the end of its' service life, and refuses to print. I'm quite upset, as someone is constantly demanding more money. Is it just coincidence? The printer is only one year old.