6 pack grey black yellow cyan magenta original ink tank specification product type ink tank printing technology ink jet printing colour grey black yellow cyan magenta included qty 6 pack compatible with pixma ip7250 ip8750 ix6850 mg5450 mg5550 mg5650 mg6350 mg6450 mg6450 monster university edition mg6650 mg7150 mg7150 monster university edition mg7550 mx725 mx925