FastINK Dye Ink Cartridge for the EPSON R2400 The EPSON R2400 is a pigment ink printer so you have to convert to a special DYE black ink for positives. FastINK™ is the best dye based ink for screen making positives on the market. It is specially formulated for printing on coated clear film and designed to dry quickly, resist scratches and have excellent UV blocking characteristics. You want a bulk ink system so you don't have to change cartridges so often. The cartridges in the EPSON R2400 hold 18ml but this system increases it to 90ml. You use a special black cartridge with a tube attached and a fitting to go to the 90ml black FastINK. System is fully charged with ink and ready to run. The FastINK bulk system uses non-drip quick connect fittings so changing to a new ink bag is simple and clean! 497-200-0-EA FastINK 18ml Dye Black Cartridge ........... $24.50 each Must for Positives! 497-200-4-EA FastINK Dye Black 90ml Refill Bag ......... $49.95 Lawson recommends Water Proof Inkjet film IMPORTANT: There are nine ink cartridges including user-interchangeable Photo and Matte Black. Install the Photo Black instead of MATTE BLACK because when the printer starts for the first time it will write the cartridge information to the firmware. It requires an EPSON technician; many purge cleaning cycles & wasted ink to clean the tube system of UltraChrome pigment ink. ***For the best screen printing positives, install a FastINK cartridge in Slot 5. Ink Cartriage Slots: Slot 1 = Light Light Black Slot 2 = Light Magenta Slot 3 = Light Cyan Slot 4 = Light Black Slot 5 = Matte Black or Photo Black *** replace with FastINK Slot 6 = Cyan Slot 7 = Magenta Slot 8 = Yellow One of the black cartridges must be REPLACED with a DYE INK cartridge for making positives unless you want to use more expensive pigment film. You do not want to install a black pigment cartridge because it is almost impossible to purge the pigment ink when you want to switch to DYE ink.