When I purchased my current printer (HP Color LaserJet Pro M252dw), I gave my old one to my dad. It was a HP LaserJet 1022n, a small black and white laser printer. I cannot remember when I purchased the 1022n, but likely more than twelve years ago. It is an awesome printer, and still works great. Anyway, the toner was running low, so I purchased a replacement toner cartridge. The OEM HP cartridge was about $90 on Amazon, but there are lots of third party options. I finally chose one with a lot of positive reviews and Amazon reminded that I purchased the same item in December of 2014 for $20. That last toner cartridge lasted eight years! Snice I was happy with the last cartridge, I went ahead and ordered the same product. Amazon then said I could save some money by signing up for a subscription, and the typical order frequency was five months. Somehow, I doubt I will need another replacement toner cartridge in five months. Also, it was less than $15 with tax, compared to $90 pre-tax for the HP branded toner.
==========
I also had to buy new toner for my color laser printer since the starter toner that came with the printer ran out quickly. Because it was a color printer, the complete toner set included four colors/cartridges. Again, the OEM HP toner was really expensive, about $316 on Amazon. The third-party toner I purchased was only $60 and I cannot tell the difference between HP and not HP.
Life with chronic diseases 