Bought the MG6150 today, installed it and did my first print. 2 lines of text & I had a message saying 4 of the ink cartridges may be empty!! They're having a laugh surely, selling printers with next to nothing in the cartridges. This is my third Canon & this has never happened before. Now I need to source some asap & prices are pretty steep. Does anyone know the best place to get these from? Also, can anyone advise on compatibles? Do they give as good quality on photo prints as OEMs? I have never used them before for fear of damaging my printer but with prices the way they are I am seriously thinking of giving them a go. Any advice gratefully received.