Every time so far 1-2 intensive cleaning necessary plus nozzle test pattern. It always relates to other colors, except the gray cartridge which is each time.
Except for the gray cartridge Incidentally, I have taken the Peach cartridge into operation to prevent the printer at the first time to ink mixtures.
I now again order a complete Peachset and thereafter make a renewed review and adjust them here.
Until then 3 stars because if the printer will print and one uses good photo paper, see the terms of Supe.
PS: We print with the MG750 only A4 photos. For everything else, a simple monochrome laser printer is used.
Addendum 22.12.2014:
Still the same problem, the printer is not used for a few days is a multiple (3-6) intensive print head cleaning necessary. The ink consumption is thus enornm, so that was now begun the second set of cartridges to have printed without really much.