V6.1 New Combo Chip are available for the following printer models:

T10/T11/T20/T20E/TX100/TX101/TX300F (T0731N-T0734N CYMK)TX200/TX209/TX400/TX409 (T0731N-T0734N CMYK)
T40W/TX600FW (T0731N-T0734N KMYC)
TX105/T23 (T1171/T0732N-T0734N)
T33 (T1151/T1151/732N-734N)
T30 (731N/731N-734N - KKMCY)