This is a longer term strategy, not a lot of use for people who need a printer now, but start analysing eBay posts for people selling cartridges, drums, belts, etc for obsolete "office grade" printers. You may detect patterns of availability showing that an old printer can be kept running at low cost. Throw in the occasional purchase of another printer when they crop up to scavenge for spares, and you can keep going for years. I used to have a laser printer which in today's money would probably be about £10K. Cost me nothing like that to get started. Toner cartridges? Less than a tenth of the price they were when the printer was current.
OPC belts? Also cheap, or if someone's selling a whole printer, go and look and inspect prints done there and then for quality. And so it goes on.