Advise consumers that the firmware update (on a new Epson 15000) is made to disable the printer from using non-Epson ink cartridges. Please spread the word - Do not update firmware! Epson advised me that I should have known that they indicate only Epson cartridges should be used (it is apparently spelled out on the packaging) and that non-Epson ink will not function properly! The only reason my printer does not NOW function properly is because of their firmware update...which is set-up to disallow you from using the ink of your choice. There was not advice that this firmware would result in this happening. As well the rep advised that the firmware installation cannot be reversed! I owned an Epson 1430 for years, always using non-Epson compatible ink cartridges with no problems. It was because of my appreciation for the 1430 that I puchased the 15000. Now it is inoperable....until I purchase Epson ink.