Europe and China region P800 users can print with their choice of inks. North American region EPSON® SureColor P800 users must install our chip decoder board in order to be able to print with their choice of inks. We have these boards in inventory. They're not difficult to install. After you install a decoder board the printer will operate without EPSON brand cartridges. You can print with ConeColor® Pro inks to get superior dMax to EPSON®, or with Piezography® monochrome inks to get better black & white than EPSON®, or with InkThrift® inks if what you need to print economically does not need to stand the test of time like ConeColor, Piezography, and EPSON® inks will. Refrain from ever updating firmware on any of these North American region printers.