1, With newest Auto reset chips, Note: it is all different from old version for T0681-T0684/T0691-T0694 

2, Suitable for use in the printer use the cartridge T0681-T0684/T0691-T0694 

3, Prefilled special formula ink for this new Model, the ink color is similar with original ink and no clog and damaged to the print-head.

4, With our new Patent Design-PIANO BOOK CISS, each filling INK and 100% negetive pressure.