Only Applicable Printer Model: ? EcoTank Pro ET-5150 Wireless All-in-One Supertank Printer? EcoTank Pro ET-5170 Wireless All-in-One Supertank Printer ?EcoTank Pro ET-5180 Wireless All-in-One Supertank Printer ?EcoTank Pro ET-5800 All-in-One Cartridge-Free Supertank Printer ?EcoTank Pro ET-5850 All-in-One Cartridge-Free Supertank Printer ? EcoTank Pro ET-5880 All-in-One Cartridge-Free Supertank Printer with PCL Support ?EcoTank Pro ET-16600 Wide-format All-in-One Supertank Printer ? EcoTank Pro ET-16650 Wide-format All-in-One Supertank Printer ? WorkForce ST-C8000 Supertank Color MFP Printer? WorkForce ST-C8090 Supertank Color MFP How to refill? 1--- Please find the ink bottle to replenish ink first, the color of the top cover of the ink bottle is consistent with that of the ink. 2---Please directly open the bottle cap and inject ink without squeezing the bottle by hand. It stops automatically when the ink is full. Please Note 1---This is normal dye ink, use for daily printing. Not for Sublimation printing (Heat transfer printing). 2--- This is Compatibe ink, the ink outlet is not the same as the original design. But it is the same way to operate.