we make CISS for Epson, canon, hp. this product will be the innovation of traditional cartridge: balanceable style Continuous Ink System (CISS) is a bulk ink supply system, for select inkjet printers, that replaces your standard inkjet cartridges. features: 1. neednot buy cartridge in future, save 80% money. 2. environment friendly. 3. always ink full status, easy work. 4. reasonable price. we supply ciss for below printer as HP,EPSON,CANON,BROTHER,LEXMARK,etc.