They have worked great for me as a Canon ink replacement. All I know is that in the past, cartridges from other manufacturers caused my printhead to fail and I had to buy replacement printheads because I depended on my printer. I haven't had any print head issues so far, but I don't print that much and my printer is less than 2 years old.
Cartridge NV Print MLT-D111L for Samsung, black
13 Review
Cool Toner 055H Compatible Toner Cartridge Replacement for Canon: High-Quality Ink for Your Printer (Black Cyan Magenta Yellow, with Chip, 4-Pack)
12 Review
Inkjet MFP Canon PIXMA G3415, color, A4, black
17 Review
MFP inkjet HP Ink Tank 315, color, A4, black
23 Review