Epson T1004 yellow ink cartridge for use in SX600FW/B40/BX600FW printers. OEM: C13T10044010. If you want to ensure that your printer is working to its full capacity, you need to use the right sort of ink. Epson works tirelessly to make sure that their machines and cartridges work in perfect unison to bring you perfect quality prints. With sharp, clear lines and quick printing times, this ink is perfect for use either in an office or personally. Each cartridge is designed to give a wide variety of tones making sure that whatever you want to print always looks as good on the page as it does on your screen.