Even worse is some printers have a counter and after so many thousand pagers it throws up a fault, making people think it's broken and they need to buy a new one, but there are codes/tricks available on the internet to reset it. We had one like that at work, I've also had success shaking toner cartridges to get quite a few more prints out of them, and also unblocked rarely used printer cartridge nozzles by soaking them in hot water, thus avoiding buying new ones.

