Lavaink Ink for Mutoh Printers Rockhopper Eco Ultra Ink Cardtridges 440ml with Smart Card Chip No Extra Shipping with over purchasing 20 Rockhopper Ink Cartridges for the worldwide. 100% OEM ink compatible. as low as 50% OEM ink price. LavaInk ICC Profile. 150 uncoated media options. No need to flush old ink. ============================================ Mutoh Rockhopper II You should use firmware version from rh3.00 to rh3.01 if you want to use 440 ml Eco-Ultra ink cassettes otherwise you will be refused by your printer. Firmware RH3.01 required ============================================ Mutoh Rockhopper III You should use firmware version from sp3.01/sx3.01 to sp3.02/sx3.02 if you want to use 440 ml Eco-Ultra ink cassettes otherwise you will be refused by your printer. Firmware SP3.02 required Firmware SX3.02 required ============================================ Rockhopper will not detect and monitor the ink level correctly. The following error will happen: Ink will run out without being detected by the printer first. The printer may give a false empty cartridge alert(in fact, there is still ink in the cartridge).