I bought a Lexmark laser printer about 12 years ago. A few days ago I bought my very first replacement toner cartridge for it - until this point I have been us

I bought a Lexmark laser printer about 12 years ago. A few days ago I bought my very first replacement toner cartridge for it - until this point I have been using the included cartridge, which is probably a half-capacity one. As you can guess, I do a lot of printing. The box for the cartridge actually says that it will: 1) Only dispense a certain amount of toner before the printer will stop printing and that there will still be some toner left in the cartridge when this happens. 2) Update the firmware on the printer so that it won't accept 3rd-party cartridges. 3) Stuff about me agreeing to return the used cartridge to Lexmark for recycling since I bought a "return program" cartridge. Lexmark sold the cartridge for a reduced price, returning it for recycling is my end of the bargain. They didn't use these exact words, but it was very clearly written and seemed like it would be pretty understandable to a regular person. On one hand, I have to give Lexmark props for full disclosure that doesn't hide behind a click-through license or any weasel-words/legalese. On the other hand, changing the printer after purchase to lock the owner into Lexmark cartridges seems kind of low. I'm really not sure how I feel about this though. I don't mind buying the manufacturer's cartridges or packing up the old one to be returned. But at the same time I'm worried that, in another 12 years, Lexmark might no longer be making cartridges for this printer and I'll have to throw the printer away.