Let me start by saying that this is a toner as opposed to the ink cartridges that you may be using in your printer. So yes, you will save a lot of money if you buy it. I have found that it wears out quicker than the manufacturer's brand.
Cool Toner 055H Compatible Toner Cartridge Replacement for Canon: High-Quality Ink for Your Printer (Black Cyan Magenta Yellow, with Chip, 4-Pack)
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Cartridge NV Print MLT-D111L for Samsung, black
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