I've got to printer's, both photo printer's, both Canon.A 13" and a Small 8.5". Have always used manufacturer ink. Checked it years ago and as I recall it cost's less than $.01 per sq inch for ink. Recently I decided to cut a fat hog and got some after market ink for my 8.5" printer. Printed up an 8x16" photo and it looked good. About a week later the ink started fading badly. Not sure what the life span of a photo is supposed to be with after market ink but a week just isn't all that hot. I have enlargement's made around 20yrs ago here on the wall's and they look great, OEM ink. But I do need to say that after market stuff was really inexpensive! I did try a second 8x16 with the after market stuff over a week ago and it still look's fine. I think for what I use my printer for, I need to rely on OEM ink at about $.01 per sq inch!