zlacker

Inkjet cartridges are highly sophisticated devices, it's really where "the magic" happens. They have much complexity, not helped by the fact that the ink is drying on the printing head and so hinders its ability to print.

Laser cartridges are just boxes of fine black dust. You can buy a matching box of fine black dust from somebody else, or refill your (empty) box with a different version of fine black dust, this won't matter much at all.

Having said that, I use a Brother b/w laser for 10+ years, and — with original toner being sold on Amazon at $40 and delivered for free to my door — have never bothered with neither refilling nor using "aftermarket" toner.

>>maratc+(OP)
Not all inkjet printers require cartridges, of course. Some have ink tanks you just fill from a bottle. They're a bit more expensive than cartridge inkjets, but still affordable.